Publications by authors named "Shuoqi Xiang"

3 Publications

  • Page 1 of 1

Spatiotemporal Dynamics of Affective and Semantic Valence Among Women.

Front Hum Neurosci 2021 13;15:602192. Epub 2021 Jul 13.

Key Laboratory of Modern Teaching Technology, Ministry of Education, Shaanxi Normal University, Xi'an, China.

As an important dimension of emotional assessment, valence can refer to affective valence reflecting an emotional response, or semantic valence reflecting knowledge about the nature of a stimulus. A previous study has used repeated exposure to separate these two similar cognitive processes. Here, for the first time, we compared the spatiotemporal dynamics of the affective and semantic modes of valence by combining event-related potentials with repeated exposure. Forty-seven female participants were assigned to the feeling-focused and semantic-focused groups and thereafter repeatedly viewed the pictures selected for the study. Self-report behavioral results showed that post-test scores were significantly lower than pre-test scores in the feeling-focused group, while the differences between the two tests were not significant in the semantic-focused group. At the neural level, N2 amplitudes decreased and early late positive potential amplitudes increased in both groups, suggesting that the participants perceived the repeated pictures more fluently and retrieved the traces of the stimulus spontaneously regardless of the valence they judged. However, the late positive potential amplitudes in anterior areas and the activity of the middle frontal gyrus were attenuated in the feeling-focused group; however, this component in posterior areas and the activity of the precentral gyrus were increased in the semantic-focused group. Therefore, the processes of affective and semantic valence are similar in the early stages of image perception and retrieval, while in the later stage of valence judgment, these processes show different brain activation patterns. The results provide electrophysiological evidence for the differences in psychological processes when judging the two modes of valence.
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http://dx.doi.org/10.3389/fnhum.2021.602192DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8315150PMC
July 2021

Trait anxiety modulates the temporal dynamics of Stroop task switching: An ERP study.

Biol Psychol 2021 07 7;163:108144. Epub 2021 Jul 7.

MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, China. Electronic address:

The current study aimed to find neural evidence that trait anxiety interferes with one's shifting function processing efficiency. Twenty-five high trait-anxiety (HTA) and twenty-five low trait-anxiety (LTA) participants were instructed to complete a cue-based Stroop task-switching assessment of shifting function. No group difference in behavioral performance was shown, though event-related potential (ERP) results in the cue-locked period showed that only the LTA group had a general switch benefit in contingent negative variation (CNV) amplitude, indicating the LTA group exerted less task preparation effort. In the subsequent target-locked period, compared to the LTA group, the local switch cost of target-P3 was higher in the HTA group in incompatible trials, suggesting inefficient attentional resource allocation in the HTA group in incompatible trials. These ERP findings indicated that the HTA group ultimately achieved comparable behavioral performance with the LTA group at the expense of using more compensatory strategies at the neural level.
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http://dx.doi.org/10.1016/j.biopsycho.2021.108144DOI Listing
July 2021

Regulation of negative emotions through positive reappraisal and distancing in high-trait-anxious women.

J Affect Disord 2020 04 12;267:191-202. Epub 2020 Feb 12.

MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, China.

Background: Positive reappraisal and distancing are two distinct cognitive reappraisal strategies for emotion regulation. Critically however, research examining the impact of elevated trait anxiety on cognitive reappraisal has often conflated these strategies. Thus, the present study investigated whether high-trait-anxious (HTA) women can effectively utilize positive reappraisal and distancing to regulate emotional responses to negative stimuli.

Methods: Twenty-six HTA women and twenty-seven low-trait-anxious (LTA) women were investigated in a self-generated reappraisal paradigm. Subjective measures of emotional regulation and event-related potentials (ERPs) were recorded while participants were instructed to passively view neutral or negative pictures, or to reinterpret negative pictures in a positive way (positive reappraisal) or a detached and unemotional way (distancing).

Results: HTA women, as compared to LTA women, reported smaller reductions in negative affect after positive reappraisal and smaller reductions in emotional arousal after distancing. Though ERP data did not reveal corresponding differences in the centro-parietal late positive potential during emotion regulation, data did reveal HTA women exhibited enhanced recruitment of cognitive control during positive reappraisal and greater preparatory processing before engaging in distancing.

Limitations: Future research should examine the generalizability of the present results in clinical anxiety individuals, male sample and other reappraisal strategies.

Conclusions: Overall, HTA women appeared to recruit more cortical resources, suggestive of compensatory mechanisms, to achieve a similar performance as LTA women when engaging in positive reappraisal and distancing strategies to regulate negative emotions. Therefore, the findings demonstrate that HTA women are characterized by the inefficient implementation of positive reappraisal and distancing strategies.
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http://dx.doi.org/10.1016/j.jad.2020.02.027DOI Listing
April 2020
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