Guillermo Horga

Guillermo Horga

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Guillermo Horga

Guillermo Horga

Publications by authors named "Guillermo Horga"

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42Publications

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A distinct inferential mechanism for delusions in schizophrenia.

Brain 2019 Jun;142(6):1797-1812

Department of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Drive, New York, NY, USA.

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http://dx.doi.org/10.1093/brain/awz051DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644849PMC
June 2019

Significant improvement in treatment resistant auditory verbal hallucinations after 5 days of double-blind, randomized, sham controlled, fronto-temporal, transcranial direct current stimulation (tDCS): A replication/extension study.

Brain Stimul 2019 Jul - Aug;12(4):981-991. Epub 2019 Mar 5.

Schizophrenia Research Center, Nathan Kline Institute, Orangeburg, NY, 10962, USA; Division of Experimental Therapeutics, Department of Psychiatry, Columbia University, USA; Division of Experimental Therapeutics, Department of Psychiatry, New York State Psychiatric Institute, New York, NY, 10032, USA.

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http://dx.doi.org/10.1016/j.brs.2019.03.003DOI Listing
March 2019

Hallucinations and Strong Priors.

Trends Cogn Sci 2019 02 21;23(2):114-127. Epub 2018 Dec 21.

Department of Psychiatry, Yale University, New Haven, CT, USA.

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http://dx.doi.org/10.1016/j.tics.2018.12.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6368358PMC
February 2019

Attenuated first-rank symptoms and conversion to psychosis in a clinical high-risk cohort.

Early Interv Psychiatry 2018 12 12;12(6):1213-1216. Epub 2017 Dec 12.

The Center of Prevention and Evaluation, New York State Psychiatric Institute, Columbia University Medical Center, New York, New York.

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http://dx.doi.org/10.1111/eip.12529DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5997532PMC
December 2018

Enhanced Striatal Dopamine Release to Expectation of Alcohol: A Potential Risk Factor for Alcohol Use Disorder.

Biol Psychiatry Cogn Neurosci Neuroimaging 2018 07 21;3(7):591-598. Epub 2018 Apr 21.

Department of Psychiatry, Columbia University College of Physicians and Surgeons and the New York State Psychiatric Institute, New York, New York; Department of Radiology, Columbia University College of Physicians and Surgeons, New York, New York.

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http://dx.doi.org/10.1016/j.bpsc.2018.03.018DOI Listing
July 2018

Abnormal fronto-striatal activation as a marker of threshold and subthreshold Bulimia Nervosa.

Hum Brain Mapp 2018 04 10;39(4):1796-1804. Epub 2018 Jan 10.

The Division of Child and Adolescent Psychiatry, the New York State Psychiatric Institute and the Department of Psychiatry, the College of Physicians & Surgeons, Columbia University, New York, New York.

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http://dx.doi.org/10.1002/hbm.23955DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5847471PMC
April 2018

A Perceptual Inference Mechanism for Hallucinations Linked to Striatal Dopamine.

Curr Biol 2018 02 2;28(4):503-514.e4. Epub 2018 Feb 2.

Department of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Drive, New York, NY 10032, USA. Electronic address:

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http://dx.doi.org/10.1016/j.cub.2017.12.059DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5820222PMC
February 2018

Aberrant Temporal Connectivity in Persons at Clinical High Risk for Psychosis.

Biol Psychiatry Cogn Neurosci Neuroimaging 2017 Nov 21;2(8):696-705. Epub 2017 Jan 21.

Institute for the Developing Mind, Children's Hospital Los Angeles and the Keck School of Medicine, University of Southern California.

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http://dx.doi.org/10.1016/j.bpsc.2016.12.008DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5708167PMC
November 2017

Motivational Context Modulates Prediction Error Response in Schizophrenia.

Schizophr Bull 2016 11 22;42(6):1467-1475. Epub 2016 Apr 22.

Department of Psychology, Columbia University, New York, NY.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5049527PMC
http://dx.doi.org/10.1093/schbul/sbw045DOI Listing
November 2016

The search for imaging biomarkers in psychiatric disorders.

Nat Med 2016 11 26;22(11):1248-1255. Epub 2016 Oct 26.

Department of Psychiatry, Columbia University &New York State Psychiatric Institute, New York, New York, USA.

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http://dx.doi.org/10.1038/nm.4190DOI Listing
November 2016

Mechanisms of Working Memory Impairment in Schizophrenia.

Biol Psychiatry 2016 10 23;80(8):617-26. Epub 2016 Feb 23.

Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York; Divisions of Translational Imaging, New York, New York.

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http://dx.doi.org/10.1016/j.biopsych.2016.02.017DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4995154PMC
October 2016

Dopamine-Related Disruption of Functional Topography of Striatal Connections in Unmedicated Patients With Schizophrenia.

JAMA Psychiatry 2016 08;73(8):862-70

Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, New York2Division of Translational Imaging, New York State Psychiatric Institute, New York.

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http://dx.doi.org/10.1001/jamapsychiatry.2016.0178DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5310843PMC
August 2016

Neural Dysfunction in Cognitive Control Circuits in Persons at Clinical High-Risk for Psychosis.

Neuropsychopharmacology 2016 Apr 10;41(5):1241-50. Epub 2015 Sep 10.

Institute for the Developing Mind, Children's Hospital Los Angeles, Keck School of Medicine at the University of Southern California, Los Angeles, CA, USA.

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http://dx.doi.org/10.1038/npp.2015.273DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4793108PMC
April 2016

Dynamic Connectivity between Brain Networks Supports Working Memory: Relationships to Dopamine Release and Schizophrenia.

J Neurosci 2016 Apr;36(15):4377-88

Department of Psychiatry, Columbia University, New York, New York 10032, and New York State Psychiatric Institute, New York, New York 10032

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http://dx.doi.org/10.1523/JNEUROSCI.3296-15.2016DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4829655PMC
April 2016

Sex-specific neural activity when resolving cognitive interference in individuals with or without prior internalizing disorders.

Psychiatry Res Neuroimaging 2016 Mar 21;249:76-83. Epub 2015 Oct 21.

Institute for the Developing Mind, Children's Hospital Los Angeles, Keck School of Medicine at the University of Southern California, 4650 Sunset Blvd. MS#135, Los Angeles, CA 90027, USA. Electronic address:

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http://dx.doi.org/10.1016/j.pscychresns.2015.07.008DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5542061PMC
March 2016

Changes in corticostriatal connectivity during reinforcement learning in humans.

Hum Brain Mapp 2015 Feb 12;36(2):793-803. Epub 2014 Nov 12.

Department of Psychiatry, New York State Psychiatric Institute and College of Physicians and Surgeons, Columbia University, New York, New York.

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http://dx.doi.org/10.1002/hbm.22665DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4332407PMC
February 2015

Brain metabolism during hallucination-like auditory stimulation in schizophrenia.

PLoS One 2014 8;9(1):e84987. Epub 2014 Jan 8.

Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Barcelona, Spain ; Department of Psychiatry and Clinical Psychobiology, University of Barcelona, Barcelona, Spain ; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain ; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0084987PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3885666PMC
September 2014

Annual research review: Current limitations and future directions in MRI studies of child- and adult-onset developmental psychopathologies.

J Child Psychol Psychiatry 2014 Jun 20;55(6):659-80. Epub 2014 Jan 20.

Department of Psychiatry, New York State Psychiatric Institute and College of Physicians and Surgeons, Columbia University, New York, NY, USA.

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http://dx.doi.org/10.1111/jcpp.12185DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4029914PMC
June 2014

Deficits in predictive coding underlie hallucinations in schizophrenia.

J Neurosci 2014 Jun;34(24):8072-82

Department of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, 1051 Riverside Drive, New York, New York 10032

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http://dx.doi.org/10.1523/JNEUROSCI.0200-14.2014DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4051966PMC
June 2014

The striatum and dopamine: a crossroad of risk for schizophrenia.

JAMA Psychiatry 2014 May;71(5):489-91

Department of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York2Department Radiology, New York State Psychiatric Institute, Columbia University Medical Center, New York.

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http://dx.doi.org/10.1001/jamapsychiatry.2014.191DOI Listing
May 2014

Altered activation in fronto-striatal circuits during sequential processing of conflict in unmedicated adults with obsessive-compulsive disorder.

Biol Psychiatry 2014 Apr 13;75(8):615-22. Epub 2013 Mar 13.

Division of Clinical Therapeutics in the Department of Psychiatry, the New York State Psychiatric Institute and the Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, New York.

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http://dx.doi.org/10.1016/j.biopsych.2013.02.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722261PMC
April 2014

Conscious and unconscious processes in cognitive control: a theoretical perspective and a novel empirical approach.

Front Hum Neurosci 2012 4;6:199. Epub 2012 Jul 4.

Department of Psychiatry, Columbia University, New York NY, USA ; New York State Psychiatric Institute, New York NY, USA.

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http://dx.doi.org/10.3389/fnhum.2012.00199DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3458455PMC
October 2012

An FMRI study of self-regulatory control and conflict resolution in adolescents with bulimia nervosa.

Am J Psychiatry 2011 Nov 15;168(11):1210-20. Epub 2011 Jun 15.

Division of Child and Adolescent Psychiatry, Department of Psychiatry, New York State Psychiatric Institute, USA.

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http://dx.doi.org/10.1176/appi.ajp.2011.11010094DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3328859PMC
November 2011

Adaptation to conflict via context-driven anticipatory signals in the dorsomedial prefrontal cortex.

J Neurosci 2011 Nov;31(45):16208-16

Columbia College of Physicians and Surgeons and New York State Psychiatric Institute, New York, New York 10032, USA.

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http://dx.doi.org/10.1523/JNEUROSCI.2783-11.2011DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3244974PMC
November 2011

Correlations between ventricular enlargement and gray and white matter volumes of cortex, thalamus, striatum, and internal capsule in schizophrenia.

Eur Arch Psychiatry Clin Neurosci 2011 Oct 24;261(7):467-76. Epub 2011 Mar 24.

Department of Psychiatry, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1230, New York, NY 10029, USA.

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http://dx.doi.org/10.1007/s00406-011-0202-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3182327PMC
October 2011

Clinical experience using electroconvulsive therapy in adolescents with schizophrenia spectrum disorders.

J Child Adolesc Psychopharmacol 2010 Jun;20(3):205-9

Child and Adolescent Psychiatry and Psychology Department, Hospital Clinic i Universitari, Barcelona, Spain.

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http://dx.doi.org/10.1089/cap.2009.0066DOI Listing
June 2010

18FDG PET study of amygdalar activity during facial emotion recognition in schizophrenia.

Eur Arch Psychiatry Clin Neurosci 2010 Feb 19;260(1):69-76. Epub 2009 May 19.

Department of Psychiatry, Institute of Neuroscience, Hospital Clinic, Barcelona, Spain.

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http://dx.doi.org/10.1007/s00406-009-0020-6DOI Listing
February 2010

Progressive gray matter changes in first episode schizophrenia: a 4-year longitudinal magnetic resonance study using VBM.

Schizophr Res 2009 Oct 15;114(1-3):136-43. Epub 2009 Aug 15.

Programa Esquizofrenia Clinic, Department of Psychiatry, Institute of Neuroscience, Hospital Clinic, Barcelona, Spain.

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http://linkinghub.elsevier.com/retrieve/pii/S092099640900339
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http://dx.doi.org/10.1016/j.schres.2009.07.014DOI Listing
October 2009

Ziprasidone in the treatment of affective disorders: a review.

CNS Neurosci Ther 2008 ;14(4):278-86

Bipolar Disorders Program, Hospital Clinic, University of Barcelona, IDIBAPS, CIBER-SAM, Barcelona, Spain.

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http://dx.doi.org/10.1111/j.1755-5949.2008.00056.xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6494032PMC
February 2009