Time course of the subjective emotional response to aversive pictures: relevance to fMRI studies.

Time course of the subjective emotional response to aversive pictures: relevance to fMRI studies. Research Abstract Details 

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Time course of the subjective emotional response to aversive pictures: relevance to fMRI studies. Abstract Text:

Using functional magnetic resonance imaging (fMRI) to study brain activity related to the experience of emotion presents unique challenges to neuroscientists. One important consideration arises when an experimentally induced subjective emotional response persists after the end of the emotional stimulation epoch. In this case, brain activity related to the emotional response may continue during the subsequent control or comparison epoch. The comparison epoch of the experiment may then contain a lingering emotional response. This study was conducted to better understand the time course of the subjective emotional response to intensely aversive pictures, with the goal of applying this knowledge to the design and analysis of fMRI studies of emotion. A total of 18 women in two separate experiments were shown a series of aversive, neutral and scrambled pictures presented in alternating block designs. Subjects rated the intensity of their negative feelings every 4 s while viewing the pictures. Results indicate that the subjective emotional response persists well after the end of the emotional stimulation epoch. Following a 16-s block of aversive pictures, an average of an additional 16 s elapsed before self-reported negative feelings showed a 74-80% decline. These data suggest that fMRI studies of emotion should consider the time course of the subjective response to emotionally laden stimuli.

Time course of the subjective emotional response to aversive pictures: relevance to fMRI studies. Publishing Authors By Initials

For similar psychological phenomena and processes: mental processes: perception: visual perception research abstracts see: psychological phenomena and processes: mental processes: perception: visual perception research

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Time course of the subjective emotional response to aversive pictures: relevance to fMRI studies. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Psychiatry research

VOLUME: 108

Page Numbers: 39-48

Journal Abbreviation: Psychiatry Res

ISSN: 0165-1781

DAY: 5

MONTH: Nov

YEAR: 2001

Time course of the subjective emotional response to aversive pictures: relevance to fMRI studies. Information

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LANGUAGE: eng

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Time course of the subjective emotional response to aversive pictures: relevance to fMRI studies. Keywords Mesh Terms:

KEYWORDS: Visual Perception

MESH TERMS: psychology

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Grant and Affiliation Information for Time course of the subjective emotional response to aversive pictures: relevance to fMRI studies.

AFFILIATION: Department of Psychiatry, University of California, Davis Medical Center, 2230 Stockton Blvd, Sacramento, CA 95817, USA. a.garrett@stanford.edu

Country: Ireland

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MEDLINETA: Psychiatry Res

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