J 2021

Processing of emotionally ambiguous stimuli in eating disorders: an fMRI pilot study

HOLŠTAJN ZEMÁNKOVÁ, Petra, Martin GAJDOŠ, Miroslav SVĚTLÁK, Martin BAREŠ, Jan ŠIRŮČEK et. al.

Basic information

Original name

Processing of emotionally ambiguous stimuli in eating disorders: an fMRI pilot study

Authors

HOLŠTAJN ZEMÁNKOVÁ, Petra (203 Czech Republic, belonging to the institution), Martin GAJDOŠ (203 Czech Republic, belonging to the institution), Miroslav SVĚTLÁK (203 Czech Republic, belonging to the institution), Martin BAREŠ (203 Czech Republic, belonging to the institution), Jan ŠIRŮČEK (203 Czech Republic, belonging to the institution) and Tomáš KAŠPÁREK (203 Czech Republic, belonging to the institution)

Edition

Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity, New York, Springer, 2021, 1124-4909

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30215 Psychiatry

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.008

RIV identification code

RIV/00216224:14110/21:00118859

Organization unit

Faculty of Medicine

UT WoS

000616596500004

Keywords in English

eating disorders; emotionally ambiguous stimuli; fMRI

Tags

International impact, Reviewed
Změněno: 9/10/2024 12:35, Ing. Jana Kuchtová

Abstract

V originále

Purpose People with eating disorders (EDs) have difficulties understanding their own emotions and recognizing the emotions of others, especially in ambiguous settings. We examined the neuronal mechanisms underlying the emotion processing of ambiguous interpersonal stimuli in EDs and healthy controls (HCs). Methods The fMRI data were acquired by a blocked experimental design with 28 women (14 EDs) during the visual presentation of a modified Thematic Apperception Test. Results EDs showed very strong associations between experienced and inferred emotions evoked by the stimuli; no such relationship was found in HCs. HCs displayed elevated left anterior insula activity during the mentalizing condition; EDs showed increased activity in the right supramarginal gyrus and medial prefrontal cortex. Conclusion The two groups seem to apply different strategies for judging emotionally ambiguous stimuli, albeit resulting in equivalent judgments. We assume that activity in the supramarginal gyrus and insula in EDs is linked with suppressing their own perspective while considering emotional states, probably due to alexithymia and the lack of awareness of their own mental states. We hypothesize that the strong correlation between experienced and inferred emotions in EDs could reflect their tendency to use others as a reference point for perceiving themselves and gaining information about their affective state.

Links

GA15-20970S, research and development project
Name: Od rozhodnosti po autoritářství: Potřeba kognitivního uzavření (Acronym: ORAKUZ)
Investor: Czech Science Foundation
MUNI/R/1162/2020, interní kód MU
Name: Structural and Functional Neural Correlates of Cognitive and Social-cognitive Deficit in Eating Disorders
Investor: Masaryk University, CAREER RESTART
90129, large research infrastructures
Name: Czech-BioImaging II