3,068 results match your criteria Developmental psychobiology[Journal]


Hair cortisol in the perinatal period mediates associations between maternal adversity and disrupted maternal interaction in early infancy.

Dev Psychobiol 2019 Feb 12. Epub 2019 Feb 12.

Department of Psychology, University of Copenhagen, Copenhagen, Denmark.

Existing literature points to the possibility that cortisol could be one link between maternal adversity and poorer parenting quality, but most studies have examined salivary cortisol concentrations rather than hair cortisol concentrations. The current study examined hair cortisol concentration (HCC) during the third trimester of pregnancy as a mediator between maternal adversity indicators (childhood abuse, severe mental illness, symptomatic functioning) and maternal caregiving behavior at 4 months postpartum. Forty-four women participated in the study: 30 with severe mental disorders, and 14 nonclinical controls. Read More

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http://dx.doi.org/10.1002/dev.21833DOI Listing
February 2019

Emotion regulation and cortisol reactivity during a social evaluative stressor: A study of post-institutionalized youth.

Dev Psychobiol 2019 Feb 12. Epub 2019 Feb 12.

Institute of Child Development, University of Minnesota, Minneapolis, Minnesota.

In the current study, we compared emotion regulation abilities between post-institutionalized (PI; N = 124) and never-institutionalized non-adopted (NA; N = 172) children and adolescents (7-15 years). We assessed cortisol reactivity and coded emotion regulation during the speech portion of Trier Social Stress Test (TSST-M). Parents reported on their children's social, academic, and behavioral adjustment. Read More

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http://dx.doi.org/10.1002/dev.21828DOI Listing
February 2019

Innovations in biological assessments of chronic stress through hair and nail cortisol: Conceptual, developmental, and methodological issues.

Dev Psychobiol 2019 Feb 10. Epub 2019 Feb 10.

Department of Psychology, Claremont McKenna College, Claremont, CA.

Much of the existing research on biological mechanisms underlying the stress experience has focused largely on moment-to-moment stress, rather than on chronic stress, an arguably more powerful predictor of long-term outcomes. Recent methodological innovations have paved the way for new lines of research on chronic stress, with promising implications for developmental researchers and for those who study health and adversity. In particular, there are increasing studies that have focused on chronic stress assessments by relying on cortisol derived from hair and nails as a biomarker for chronic stress. Read More

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http://doi.wiley.com/10.1002/dev.21830
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http://dx.doi.org/10.1002/dev.21830DOI Listing
February 2019
5 Reads

RSA reactivity in response to viewing bullying film and adolescent social adjustment.

Dev Psychobiol 2019 Feb 10. Epub 2019 Feb 10.

Department of Human Development and Family Science, Oklahoma State University, Oklahoma.

This study assessed adolescent respiratory sinus arrhythmia (RSA) reactivity while watching a bullying film clip from Boyz'n the Hood. We emphasized the importance of considering measurement context of RSA and examined whether RSA reactivity moderated the links between environmental factors (i.e. Read More

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http://dx.doi.org/10.1002/dev.21835DOI Listing
February 2019

Parents' experiences of childhood abuse and neglect are differentially associated with behavioral and autonomic responses to their offspring.

Dev Psychobiol 2019 Feb 6. Epub 2019 Feb 6.

Centre for Forensic Family and Youth Care Studies, Leiden University, Leiden, The Netherlands.

Although childhood maltreatment has been shown to compromise adaptive parental behavior, little is known what happens in terms of physiological regulation when parents with a history of childhood maltreatment interact with their offspring. Using a sample of 229 parents (131 women), the present study examined whether childhood maltreatment experiences are associated with parents' behavioral and autonomic responses while resolving conflict with their offspring. Self-reported experienced child maltreatment was measured using a questionnaire assessing abuse and neglect. Read More

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http://dx.doi.org/10.1002/dev.21822DOI Listing
February 2019

Day-to-day friends' victimization, aggression perpetration, and morning cortisol activity in late adolescents.

Dev Psychobiol 2019 Jan 30. Epub 2019 Jan 30.

Department of Psychology, University of Southern California, Los Angeles, California.

This study investigates bidirectional associations between adolescents' daily experiences of victimization and aggression perpetration within friendships. We investigated (a) across-day associations between victimization and aggression perpetration; (b) morning cortisol activity as a moderator of cross-day victimization and aggression links; and (c) potential sex differences in these patterns. For 4 consecutive days, 99 adolescents (M = 18. Read More

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http://dx.doi.org/10.1002/dev.21829DOI Listing
January 2019
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Effects of early life NICU stress on the developing gut microbiome.

Dev Psychobiol 2019 Jan 30. Epub 2019 Jan 30.

College of Nursing, University of South Florida, Tampa, Florida.

Succession of gut microbial community structure for newborns is highly influenced by early life factors. Many preterm infants cared for in the NICU are exposed to parent-infant separation, stress, and pain from medical care procedures. The purpose of the study was to investigate the impact of early life stress on the trajectory of gut microbial structure. Read More

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http://dx.doi.org/10.1002/dev.21826DOI Listing
January 2019
1 Read
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Is adolescence the missing developmental link in Microbiome-Gut-Brain axis communication?

Dev Psychobiol 2019 Jan 28. Epub 2019 Jan 28.

University of Oregon, Eugene, Oregon.

Gut microbial research has recently opened new frontiers in neuroscience and potentiated novel therapies for mental health problems (Mayer, et al., 2014). Much of our understanding of the gut microbiome's role in brain function and behavior, however, has been largely derived from research on nonhuman animals. Read More

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http://doi.wiley.com/10.1002/dev.21821
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http://dx.doi.org/10.1002/dev.21821DOI Listing
January 2019
8 Reads

Systemic treatment with the enteric bacterial metabolic product propionic acid results in reduction of social behavior in juvenile rats: Contribution to a rodent model of autism spectrum disorder.

Dev Psychobiol 2019 Jan 28. Epub 2019 Jan 28.

Graduate Program in Neuroscience, University of Western Ontario, London, Ontario, Canada.

The role of the gut microbiome and its enteric metabolites, such as short-chain fatty acids (SCFAs), in the etiology of autism spectrum disorders (ASDs) has recently received increased attention. Of particular interest has been the SCFA, propionic acid (PPA). Several different rodent models have been developed using PPA treatment to examine behaviors of relevance to ASD. Read More

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http://dx.doi.org/10.1002/dev.21825DOI Listing
January 2019

Gonadal steroid hormone secretion during the juvenile period depends on host-specific microbiota and contributes to the development of odor preference.

Dev Psychobiol 2019 Jan 24. Epub 2019 Jan 24.

Department of Animal Science and Biotechnology, Azabu University, Sagamihara, Japan.

The host microbial community is thought to have an important role in the host endocrine system and behavioral phenotype. We investigated chronological changes of levels of gonadal hormones and corticosterone in the feces of 4- to 8-week-old female germ-free (GF) mice, and conducted odor preference test at 8 weeks of age. We further evaluated the developmental impact of the microbial community by analyzing 4-week-old GF mice orally administered the fecal microbiota of specific pathogen-free (SPF) mice or guinea pigs (GF-SPF mice or GF-Guinea pig mice). Read More

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http://dx.doi.org/10.1002/dev.21827DOI Listing
January 2019

Perinatal antibiotics alter preterm infant EEG and neurobehavior in the Family Nurture Intervention trial.

Dev Psychobiol 2019 Jan 22. Epub 2019 Jan 22.

Department of Pediatrics, Columbia University Medical Center, New York, New York.

Early exposure to antibiotics has been shown to increase risk for poor neurobehavioral development, particularly with regard to attention deficit disorders. Clinically, electroencephalography (EEG) is increasingly used as a biomarker of these deficits. Less is known about the effects of antibiotics on neurobehavioral and neurophysiological outcomes in preterm infants, a population at particularly high risk for attention deficits and perinatal antibiotic exposure. Read More

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http://dx.doi.org/10.1002/dev.21820DOI Listing
January 2019
5 Reads

Contextual risk factors impacting the colonization and development of the intestinal microbiota: Implications for children in low- and middle-income countries.

Dev Psychobiol 2019 Jan 21. Epub 2019 Jan 21.

Offord Centre for Child Studies, McMaster University, Hamilton, Ontario, Canada.

Early adversities, such as poverty, maternal stress, and malnutrition, can affect the structure and functioning of the developing brain with implications for biological systems such as the intestinal microbiota. To date, most studies examining the impact of these risk factors on the development and functioning of the intestinal microbiota have primarily been conducted in high-income countries. However, arguably, children in low- and middle-income countries may be at increased risk given cumulative biological and psychosocial adversities during their development. Read More

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http://dx.doi.org/10.1002/dev.21823DOI Listing
January 2019
2 Reads

The microbiota-gut-brain axis: A promising avenue to foster healthy developmental outcomes.

Dev Psychobiol 2019 Jan 14. Epub 2019 Jan 14.

Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands.

Fostering healthy developmental growth in the first years of life is associated with numerous favorable cognitive, social, and economic outcomes. Funding and promoting research aimed at identifying potential targets for early intervention should be a top priority for lawmakers and funders. One promising avenue of research and potential early intervention is the microbiota-gut-brain axis. Read More

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http://dx.doi.org/10.1002/dev.21824DOI Listing
January 2019
2 Reads

What can the gut microbiome teach us about the connections between child physical and mental health? A systematic review.

Dev Psychobiol 2019 Jan 8. Epub 2019 Jan 8.

Discipline of Paediatrics, School of Women's and Children's Health, UNSW Medicine, The University of New South Wales (UNSW), Sydney, New South Wales, Australia.

A deeper understanding of the gut-brain axis is of significance in pediatrics, given the influential role of early childhood experiences and exposures in shaping the microbiome, and health, across the life course. This systematic review synthesized evidence on the connection between the gut microbiome and mental health in children with physical illness. Six electronic databases were systematically searched and data extracted according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. Read More

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http://doi.wiley.com/10.1002/dev.21819
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http://dx.doi.org/10.1002/dev.21819DOI Listing
January 2019
6 Reads

The psychobiology of emotional development: The case for examining sociocultural processes.

Dev Psychobiol 2018 Dec 27. Epub 2018 Dec 27.

Department of Psychology, University of California, Riverside, Riverside, California.

Psychobiological techniques to assess emotional responding have revolutionized the field of emotional development in recent decades by equipping researchers with the tools to quantify children's emotional reactivity and regulation more directly than behavioral approaches allow. Knowledge gained from the incorporation of methods spanning levels of analysis has been substantial, yet many open questions remain. In this prospective review, we (a) describe the major conceptual and empirical advances that have resulted from this methodological innovation, and (b) lay out a case for what we view as the most pressing challenge for the next decades of research into the psychobiology of emotional development: focusing empirical efforts toward understanding the implications of the broader sociocultural contexts in which children develop that shape the psychobiology of emotion. Read More

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http://dx.doi.org/10.1002/dev.21795DOI Listing
December 2018
2 Reads

Functional near-infrared spectroscopy as a tool for assessing speech and spoken language processing in pediatric and adult cochlear implant users.

Authors:
Heather Bortfeld

Dev Psychobiol 2018 Dec 26. Epub 2018 Dec 26.

Psychological Sciences, University of California, Merced, Merced, California.

Much of what is known about the course of auditory learning in following cochlear implantation is based on behavioral indicators that users are able to perceive sound. Both prelingually deafened children and postlingually deafened adults who receive cochlear implants display highly variable speech and language processing outcomes, although the basis for this is poorly understood. To date, measuring neural activity within the auditory cortex of implant recipients of all ages has been challenging, primarily because the use of traditional neuroimaging techniques is limited by the implant itself. Read More

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http://dx.doi.org/10.1002/dev.21818DOI Listing
December 2018
2 Reads

Ontogenesis of learning and memory: Biopsychosocial and dynamical systems perspectives.

Dev Psychobiol 2018 Dec 21. Epub 2018 Dec 21.

Department of Psychological Sciences, University of Connecticut, Storrs, Connecticut.

In this article, we review recent empirical and theoretical work on infant memory development, highlighting future directions for the field. We consider the state of the field since Carolyn Rovee-Collier's call for developmental scientists to "shift the focus from what to why," emphasizing the function of infant behavior and the value of integrating fractionized, highly specialized subfields. We discuss functional approaches of early learning and memory, including ecological models of memory development and relevant empirical work in human and non-human organisms. Read More

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http://doi.wiley.com/10.1002/dev.21817
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http://dx.doi.org/10.1002/dev.21817DOI Listing
December 2018
7 Reads

Recollections of positive early caregiving relate to sympathetic nervous system activation and chronic inflammation in subsequent generations.

Dev Psychobiol 2019 Mar 21;61(2):261-274. Epub 2018 Dec 21.

Counseling Psychology, University of Oregon, Eugene, Oregon.

To understand links between early experience and biomarkers of peripheral physiology in adulthood, this study examined associations between quality of early caregiving and markers of sympathetic activation and chronic inflammation in a sample of 52 low-income mothers and their preschool-aged children. Mothers reported on levels of positive caregiving experienced during childhood using the Structural Analysis of Social Behavior-Intrex. Mother and child sympathetic activation was indexed via pre-ejection period (PEP) at rest, during a dyadic social engagement task, and for children, while interacting with an unfamiliar adult. Read More

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http://dx.doi.org/10.1002/dev.21815DOI Listing
March 2019
2 Reads

Prenatal stress enhances postnatal plasticity: The role of microbiota.

Dev Psychobiol 2018 Dec 21. Epub 2018 Dec 21.

Department of Human Development and Family Studies, University of California, Davis, California.

Separate fields of inquiry indicate (a) that prenatal stress is associated with heightened behavioral and physiological reactivity and (b) that these postnatal phenotypes are themselves associated with increased susceptibility to both positive and negative environmental influences. Collectively, this work supports Pluess and Belsky's (Psychopathology, 2011, 23, 29) claim that prenatal stress fosters, promotes or "programs" postnatal developmental plasticity. Herein, we review animal and human evidence consistent with this hypothesis before advancing the novel idea that infant intestinal microbiota may be one candidate mechanism for instantiating developmental plasticity as a result of prenatal stress. Read More

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http://dx.doi.org/10.1002/dev.21816DOI Listing
December 2018
2 Reads

Parasympathetic regulation in cognitive and emotional challenge contexts differentially predicts specific aspects of children's emotional functioning.

Dev Psychobiol 2019 Mar 21;61(2):275-289. Epub 2018 Dec 21.

Department of Psychology, University of California, Riverside, California.

Parasympathetic regulation has been consistently linked with better emotional functioning in childhood, but it is still not clear if parasympathetic regulation serves as a transcontextual marker of adaptive emotional functioning or if this link is context-specific. This study tested this by examining the specificity of the relation between parasympathetic regulation in distinct types of challenge tasks and different aspects of children's emotional functioning. Emotional functioning included parent-reported emotional reactivity, parent-reported general emotion regulation ability, and child-reported emotion regulation strategy knowledge. Read More

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http://dx.doi.org/10.1002/dev.21812DOI Listing
March 2019
2 Reads

Normative developmental trajectories of actigraphic sleep variables during the preschool period: A three-wave longitudinal study.

Dev Psychobiol 2019 01 22;61(1):141-153. Epub 2018 Nov 22.

University of Montreal, Montreal, Quebec, Canada.

Important changes in sleep are believed to occur in the preschool years, but studies that have documented these changes were generally cross-sectional or based on subjective sleep measures. The current longitudinal study modeled the developmental trajectories followed by five sleep variables objectively assessed during the preschool period. Children (N = 128) wore an actigraph over 3 days at 2, 3, and 4 years of age and change in sleep variables was assessed with growth curves. Read More

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http://dx.doi.org/10.1002/dev.21805DOI Listing
January 2019
4 Reads

Anxiety and exploratory behavior in the African striped mouse, Rhabdomys, taxa are partially modified by the physical rearing environment.

Dev Psychobiol 2019 Mar 14;61(2):179-190. Epub 2018 Dec 14.

School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, South Africa.

The environment may modulate genetic influences on behavioral expression. We investigated whether the physical rearing environment modulates anxiety and exploratory behavior in four populations, representing three species, of the striped mouse Rhabdomys. One population originated from an arid, open habitat and the others from grassy, covered habitats, and two species occurred in sympatry. Read More

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http://dx.doi.org/10.1002/dev.21814DOI Listing
March 2019
4 Reads

Valence matters: An electrophysiological study on how emotions influence cognitive performance in children.

Dev Psychobiol 2019 Mar 13;61(2):290-303. Epub 2018 Dec 13.

Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada.

Emotional stimuli have been found to influence cognitive performance in children, but it is not clear whether this effect varies with the cognitive demands of the task. In this study, we examined how emotional expressions influenced cognitive performance and event-related potentials (ERPs) in early and middle childhood under varying cognitive control demands. Two groups of children (4. Read More

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http://dx.doi.org/10.1002/dev.21813DOI Listing
March 2019
2 Reads

A systematic review of gut-immune-brain mechanisms in Autism Spectrum Disorder.

Dev Psychobiol 2018 Dec 6. Epub 2018 Dec 6.

Psychology Program, School of Social Sciences, Nanyang Technological University, Singapore, Singapore.

Despite decades of research, the etiological origins of Autism Spectrum Disorder (ASD) remain elusive. Recently, the mechanisms of ASD have encompassed emerging theories involving the gastrointestinal, immune, and nervous systems. While each of these perspectives presents its own set of supporting evidence, the field requires an integration of these modular concepts and an overarching view of how these subsystems intersect. Read More

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http://doi.wiley.com/10.1002/dev.21803
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http://dx.doi.org/10.1002/dev.21803DOI Listing
December 2018
10 Reads

Differences in means-end exploration between infants at risk for autism and typically developing infants in the first 15 months of life.

Dev Psychobiol 2019 Mar 3;61(2):203-215. Epub 2018 Dec 3.

Department of Kinesiology, Physical Therapy Program, University of Connecticut, Storrs, Connecticut.

Our study compared means-end exploration in infants at risk (AR) for autism and typically developing (TD) infants using a nested box paradigm. Sixteen AR and 16 TD infants were observed at 9, 12, and 15 months with follow-up at 18 and 24 months. We collected video data on three tasks involving retrieval of a small toy by opening (a) an opaque box, (b) a transparent box, and (c) two nested boxes. Read More

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http://doi.wiley.com/10.1002/dev.21810
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http://dx.doi.org/10.1002/dev.21810DOI Listing
March 2019
11 Reads

Effect of enriched environment during adolescence on spatial learning and memory, and voluntary consumption of morphine in maternally separated rats in adulthood.

Dev Psychobiol 2018 Nov 28. Epub 2018 Nov 28.

Laboratory of Animal Addiction Models, Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran.

This study was designed to examine the effect of environmental enrichment (EE) during adolescence on spatial learning and memory and voluntary morphine consumption in maternally separated (MS) male and female rats in adulthood. Male Wistar rats were allowed to mate with female virgin Wistar rats. Pups were separated from the dams daily for 180 min during postnatal days 2-14. Read More

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http://dx.doi.org/10.1002/dev.21808DOI Listing
November 2018
2 Reads

Measurement of cortisol, dehydroepiandrosterone, and testosterone in the hair of children: Preliminary results and promising indications.

Dev Psychobiol 2018 Nov 26. Epub 2018 Nov 26.

Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Victoria, Australia.

Hormone analysis is a valuable tool for understanding how physiology and behavior interact. Cortisol in hair has recently been examined as a measure of longer-term hormone output. The aim of this study was to investigate the relationships between other androgens in hair and anthropometric measures. Read More

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http://dx.doi.org/10.1002/dev.21807DOI Listing
November 2018
2 Reads

Longitudinal associations between conflict monitoring and emergent academic skills: An event-related potentials study.

Dev Psychobiol 2018 Nov 26. Epub 2018 Nov 26.

Department of Human Development and Family Studies, University of North Carolina at Greensboro, Greensboro, North Carolina.

Identifying the links between specific cognitive functions and emergent academic skills can help determine pathways to support both early academic performance and later academic achievement. Here, we investigated the longitudinal associations between a key aspect of cognitive control, conflict monitoring, and emergent academic skills from preschool through first grade, in a large sample of socioeconomically diverse children (N = 261). We recorded event-related potentials (ERPs) during a Go/No-Go task. Read More

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http://doi.wiley.com/10.1002/dev.21809
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http://dx.doi.org/10.1002/dev.21809DOI Listing
November 2018
10 Reads

Negative parenting modulates the association between mother's DNA methylation profiles and adult offspring depression.

Dev Psychobiol 2019 Mar 23;61(2):304-310. Epub 2018 Nov 23.

University of Houston, Houston, Texas.

This study aimed to examine whether the relationship between mothers' DNA methylation profiles and offspring's depression is modulated by negative parenting. The participants were 35 African-American mother-offspring dyads. Young adult offspring (19 females; age = 17-29. Read More

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http://dx.doi.org/10.1002/dev.21789DOI Listing
March 2019
6 Reads

Connection between gut microbiome and brain development in preterm infants.

Dev Psychobiol 2018 Nov 20. Epub 2018 Nov 20.

Department of Pediatrics, University of Chicago, Pritzker School of Medicine, Chicago, Illinois.

Dysbiosis of the gut microbiome in preterm infants predisposes the neonate to various major morbidities including neonatal necrotizing enterocolitis and sepsis in the neonatal intensive care unit, and adverse neurological outcomes later in life. There are parallel early developmental windows for the gut microbiota and the nervous system during prenatal to postnatal of life. Therefore, preterm infants represent a unique population in which optimization of initial colonization and microbiota development can affect brain development and enhance neurological outcomes. Read More

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http://dx.doi.org/10.1002/dev.21806DOI Listing
November 2018
11 Reads

Paternal methyl donor deficient diets during development affect male offspring behavior and memory-related gene expression in mice.

Dev Psychobiol 2019 01 20;61(1):17-28. Epub 2018 Nov 20.

Department of Cognitive Behavioral Physiology, Graduate School of Medicine, Chiba University, Chiba, Japan.

It has become increasingly evident that the methylation of DNA, known as an epigenetic marker, affects behavior in animals. In our previous study, a methyl-donors (folate, methionine, and choline)-deficient (FMCD) diet during the juvenile period could be shown to affect anxiety-like behavior and fear memory, accompanied by alteration in some gene expression and their methylations in the hippocampus. One question is whether the fear memory of a parent affects the fear responses of offspring. Read More

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http://dx.doi.org/10.1002/dev.21801DOI Listing
January 2019
8 Reads

Use it or lose it? Effects of age, experience, and disuse on crawling.

Dev Psychobiol 2019 01 16;61(1):29-42. Epub 2018 Nov 16.

Department of Psychology, New York University, New York City, New York.

What happens to early acquired but later abandoned motor skills? To investigate effects of disuse on early-developing motor skills, we examined crawling in two groups of habitual crawlers (34 6-12-month-old infants and five adults with Uner Tan Syndrome) and two groups of rusty crawlers (27 11-12-year-old children and 13 college-aged adults). Habitual crawlers showed striking similarities in gait patterns, limbs supporting the body, and crawling speed, despite dramatic differences in crawling practice, posture, and body size. Habitual crawlers trotted predominantly, whereas rusty crawlers showed a variety of gait patterns. Read More

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http://doi.wiley.com/10.1002/dev.21802
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http://dx.doi.org/10.1002/dev.21802DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6345180PMC
January 2019
17 Reads

Cortisol secretion moderates the association between mother-infant attachment at 17 months and child behavior at age 5 years.

Dev Psychobiol 2019 Mar 16;61(2):239-253. Epub 2018 Nov 16.

Department of Psychology, Ryerson University, Toronto, Ontario, Canada.

This study examined infant cortisol secretion as a moderator of the association between mother-infant attachment security at age 17 months and child behavior at age 5 years. A longitudinal community sample of 96 mother-child dyads participated in the strange situation procedure (SSP) at age 17 months. Cortisol was collected at baseline, and at 20 and 40 min post-SSP. Read More

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http://doi.wiley.com/10.1002/dev.21799
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http://dx.doi.org/10.1002/dev.21799DOI Listing
March 2019
8 Reads

Looking back and moving forward: Evaluating and advancing translation from animal models to human studies of early life stress and DNA methylation.

Dev Psychobiol 2018 Nov 13. Epub 2018 Nov 13.

Department of Psychological and Brain Sciences, University of Delaware, Newark, Delaware.

Advances in epigenetic methodologies have deepened theoretical explanations of mechanisms linking early life stress (ELS) and disease outcomes and suggest promising targets for intervention. To date, however, human studies have not capitalized on the richness of diverse animal models to derive and systematically evaluate specific and testable hypotheses. To promote cross-species dialog and scientific advance, here we provide a classification scheme to systematically evaluate the match between characteristics of human and animal studies of ELS and DNA methylation. Read More

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http://doi.wiley.com/10.1002/dev.21796
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http://dx.doi.org/10.1002/dev.21796DOI Listing
November 2018
13 Reads

Finding events in a continuous world: A developmental account.

Dev Psychobiol 2018 Nov 6. Epub 2018 Nov 6.

University of Delaware, Newark, Delaware.

Event segmentation is a fundamental process of human cognition that organizes the continuous flux of activity into discrete, hierarchical units. The mechanism of event segmentation in infants seems to parallel the mechanism studied in adults, which centers on action predictability. Statistical learning appears to bootstrap infants' event segmentation by generating action predictions without relying on prior knowledge. Read More

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http://doi.wiley.com/10.1002/dev.21804
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http://dx.doi.org/10.1002/dev.21804DOI Listing
November 2018
15 Reads

Adolescent social stress and social context influence the intake of ethanol and sucrose in male rats soon and long after the stress exposures.

Dev Psychobiol 2019 01 6;61(1):81-95. Epub 2018 Nov 6.

Department of Psychology, Brock University, St. Catharines, Ontario.

Social instability stress in adolescent rats (SS; postnatal day 30-45, daily 1 hr isolation +new cage partner) alters behavioural responses to psychostimulants, but differences in voluntary consumption of natural and drug rewards are unknown. SS also is associated with an atypical behavioural repertoire, for example reduced social interactions. Here, we investigated whether SS rats differ from control (CTL) rats in ethanol (EtOH) or sucrose intake in experiments involving different social contexts: alone, in the presence of an unfamiliar peer, in the presence of its cage partner, or in competition against its cage partner. Read More

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http://doi.wiley.com/10.1002/dev.21800
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http://dx.doi.org/10.1002/dev.21800DOI Listing
January 2019
15 Reads

Means-end problem solving in infancy: Development, emergence of intentionality, and transfer of knowledge.

Dev Psychobiol 2019 Mar 2;61(2):191-202. Epub 2018 Nov 2.

Department of Physical Therapy, Biomechanics & Movement Science Program, University of Delaware, Newark, Delaware.

Behaviors and performance of 23 typically developing infants were assessed longitudinally at 6, 9, 12, 18, and 24 months in two means-end tasks: pulling a towel or rotating a turntable to obtain a supported object. With age, infants performed more goal-directed behaviors, leading to increased problem-solving success. Intentionality emerged earlier in the towel task than in the turntable task (6. Read More

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http://doi.wiley.com/10.1002/dev.21798
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http://dx.doi.org/10.1002/dev.21798DOI Listing
March 2019
10 Reads

Visual preferences for direct-gaze faces in infant macaques (Macaca mulatta) with limited face exposure.

Dev Psychobiol 2019 Mar 30;61(2):228-238. Epub 2018 Oct 30.

Department of Psychiatry and Behavioral Science, Emory University, Atlanta, Georgia.

From birth, human and nonhuman primates attend more to faces with direct gaze compared with averted gaze, and previous studies report that attention to the eyes is linked to the emergence of later social skills. Here, we explored whether early experiences influence attraction to eye contact in infant macaques by examining their attention to face pairs varying in their gaze direction across the first 13 weeks of life. Infants raised by human caretakers had limited conspecific interactions (nursery-reared; N = 16) and were compared to infants raised in rich social environments (mother-reared; N = 20). Read More

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http://doi.wiley.com/10.1002/dev.21797
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http://dx.doi.org/10.1002/dev.21797DOI Listing
March 2019
4 Reads

The relationship between cognitive enrichment and cognitive control: A systematic investigation of environmental influences on development through socioeconomic status.

Dev Psychobiol 2019 Mar 30;61(2):159-178. Epub 2018 Oct 30.

Brown University, Providence, Rhode Island.

We measured the impact of socioeconomic status (SES) on cognitive processes. We examined cognitive control, specifically working memory (WM), in a sample of N = 141 7- to 17-year-olds using rule-guided behavior tasks. Our hypothesis is based on computational modeling data that suggest that the development of flexible cognitive control requires variable experiences in which to implement rule-guided action. Read More

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http://doi.wiley.com/10.1002/dev.21794
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http://dx.doi.org/10.1002/dev.21794DOI Listing
March 2019
6 Reads

The implications of sympathetic and parasympathetic regulatory coordination for understanding child adjustment.

Dev Psychobiol 2018 12 28;60(8):1023-1036. Epub 2018 Oct 28.

University of California, Riverside, California.

The autonomic nervous system (ANS) is comprised of sympathetic and parasympathetic branches that control core adaptive systems, including cardiac regulation, across periods of rest, reactivity, and recovery. Despite their heavily intertwined functions, research examining the coordination of parasympathetic and sympathetic ANS regulation is limited. This study examined the effects of 6-year-olds' (N = 198; 49. Read More

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http://doi.wiley.com/10.1002/dev.21784
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http://dx.doi.org/10.1002/dev.21784DOI Listing
December 2018
15 Reads

Neural correlates of delay of gratification choice in young children: Near-infrared spectroscopy studies.

Dev Psychobiol 2018 12 11;60(8):989-998. Epub 2018 Oct 11.

Graduate School of Education, Kyoto University, Kyoto, Japan.

Delay of gratification refers to the ability to forgo a small immediate reward to obtain a larger delayed reward. Cognitive mechanisms underlying the delay of gratification in young children have been examined extensively. However, the neural mechanism of this process is largely unknown. Read More

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http://doi.wiley.com/10.1002/dev.21791
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http://dx.doi.org/10.1002/dev.21791DOI Listing
December 2018
16 Reads

Profiles of vagal withdrawal to challenging interactions: Links with preschoolers' conceptual shifting ability.

Dev Psychobiol 2019 01 22;61(1):116-124. Epub 2018 Oct 22.

Department of Developmental Psychology and Socialization, University of Padova, Padova, Italy.

The current study investigated profiles of vagal withdrawal in response to a challenging task in preschoolers. Also, the association between those profiles and conceptual shifting ability was assessed. Electrocardiogram of 43 four-year-olds was registered during a sequence of games including a win phase and a lose phase, while conceptual shifting ability was assessed via a standardized test. Read More

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http://dx.doi.org/10.1002/dev.21787DOI Listing
January 2019
2 Reads

Effect of early-life inflammation and magnesium sulfate on hyperthermia-induced seizures in infant rats: Susceptibility to pentylenetetrazol-induced seizures later in life.

Dev Psychobiol 2019 01 18;61(1):96-106. Epub 2018 Oct 18.

Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran.

This study investigated the effect of inflammation and MgSO pretreatment on behaviors caused by hyperthermia (HT) and the effect of these interventions on PTZ-induced seizure a week later. In this experimental study, rat pups experienced inflammation on postnatal day 10 (P10). On P18-19, the pups received either saline or MgSO then subjected to hyperthermia. Read More

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http://doi.wiley.com/10.1002/dev.21781
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http://dx.doi.org/10.1002/dev.21781DOI Listing
January 2019
10 Reads

Temporally sensitive neural measures of inhibition in preschool children across a spectrum of irritability.

Dev Psychobiol 2019 Mar 17;61(2):216-227. Epub 2018 Oct 17.

Department of Medical Social Sciences, Northwestern University, Chicago, Illinois.

Irritability is a prominent feature of chronic mental disorders and a developmental marker of their early emergence. The most salient feature of irritability in early childhood is temper tantrums. While temper tantrums are normative in young children, they can be clinically concerning when they are dysregulated, very frequent, and/or occur in unexpected contexts. Read More

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http://dx.doi.org/10.1002/dev.21792DOI Listing
March 2019
3 Reads

The role of the motor system in action understanding and communication: Evidence from human infants and non-human primates.

Dev Psychobiol 2018 Oct 12. Epub 2018 Oct 12.

University of Maryland, College Park, Maryland.

There is growing evidence that activation of the motor system during observation of actions, a phenomenon first observed in non-human primates, underlies action understanding and even communication. This review (a) examines the evidence on motor system activity as an underlying neural correlate of action understanding; (b) reviews the theoretical and empirical work linking action understanding and the development of communication, with a specific focus on the role that gestures play as an intermediary; and (c) discusses the research on and existing opportunities for understanding the link between the motor system and communication in both humans and non-human primates, through the lens of action perception. Bringing together findings and perspectives from developmental social cognition in both humans and non-human primates and applying recent neuroscientific perspectives will help to elucidate the processes underlying the ability to understand and communicate with others. Read More

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http://dx.doi.org/10.1002/dev.21779DOI Listing
October 2018
2 Reads

A primer on investigating the role of the microbiome in brain and cognitive development.

Dev Psychobiol 2018 Oct 12. Epub 2018 Oct 12.

Department of Psychology, University of Virginia, Charlottesville, Virginia.

Incorporating information regarding the gut microbiota into psychobiological research promises to shed new light on how individual differences in brain and cognitive development emerge. However, the investigation of the gut-brain axis in development is still in its infancy and poses several challenges, including data analysis. Considering that the gut microbiome is an eco-system containing millions of bacteria, one needs to utilize a breadth of methodologies and data analytic techniques. Read More

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http://doi.wiley.com/10.1002/dev.21778
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http://dx.doi.org/10.1002/dev.21778DOI Listing
October 2018
4 Reads

Adolescent morphine exposure increases nociceptive behaviors in rat model of formalin test.

Dev Psychobiol 2019 Mar 11;61(2):254-260. Epub 2018 Oct 11.

Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.

The number of adolescents who use illicit drugs has increased dramatically. Adolescence is a critical period for brain development and maturation. The importance of the study of pain perception and the possible mechanisms involved is crystal clear. Read More

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http://dx.doi.org/10.1002/dev.21790DOI Listing
March 2019
2 Reads

Long-chain polyunsaturated fatty acid supplementation in the first year of life affects brain function, structure, and metabolism at age nine years.

Dev Psychobiol 2019 01 11;61(1):5-16. Epub 2018 Oct 11.

Hoglund Brain Imaging Center, University of Kansas Medical Center (KUMC), Kansas City, Kansas.

The present study sought to determine whether supplementation of long-chain polyunsaturated fatty acids (LCPUFA) during the first year of life influenced brain function, structure, and metabolism at 9 years of age. Newborns were randomly assigned to consume formula containing either no LCPUFA (control) or formula with 0.64% of total fatty acids as arachidonic acid (ARA; 20:4n6) and variable amounts of docosahexaenoic acid (DHA; 22:6n3) (0. Read More

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http://doi.wiley.com/10.1002/dev.21780
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http://dx.doi.org/10.1002/dev.21780DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6317998PMC
January 2019
7 Reads

Resilience priming: Translational models for understanding resiliency and adaptation to early life adversity.

Dev Psychobiol 2018 Oct 11. Epub 2018 Oct 11.

Department of Psychology, Wayne State University, Detroit, Michigan.

Despite the increasing attention to early life adversity and its long-term consequences on health, behavior, and the etiology of neurodevelopmental disorders, our understanding of the adaptations and interventions that promote resiliency and rescue against such insults are underexplored. Specifically, investigations of the perinatal period often focus on negative events/outcomes. In contrast, positive experiences (i. Read More

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http://dx.doi.org/10.1002/dev.21775DOI Listing
October 2018
2 Reads

Repetitive neonatal pain and reduced maternal care alter brain neurochemistry.

Dev Psychobiol 2018 12 4;60(8):963-974. Epub 2018 Oct 4.

Department of Psychology, Wayne State University, Detroit, Michigan.

Preterm infants are exposed to many stressors while in the neonatal intensive care unit including pain and reduced maternal care. Both stressors can have a profound negative impact on brain development, and the present study sought to investigate some of the biological mechanisms underlying this phenomenon. Rat pups underwent a series of repetitive needle pokes and/or reduced maternal care through a novel tea-ball infuser encapsulation model during the first four days of life. Read More

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http://doi.wiley.com/10.1002/dev.21777
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http://dx.doi.org/10.1002/dev.21777DOI Listing
December 2018
4 Reads