期刊
PSYCHOPHYSIOLOGY
卷 44, 期 3, 页码 352-363出版社
WILEY
DOI: 10.1111/j.1469-8986.2007.00518.x
关键词
fMRI; anxiety; anxious apprehension; anxious arousal; emotion; stroop
资金
- NIDA NIH HHS [R21 DA 14111] Funding Source: Medline
- NIMH NIH HHS [T32 MH 19554, R01 MH 61358, T32 MH 14257] Funding Source: Medline
The present study tested the hypothesis that anxious apprehension involves more left- than right-hemisphere activity and that anxious arousal is associated with the opposite pattern. Behavioral and fMRI responses to threat stimuli in an emotional Stroop task were examined in nonpatient groups reporting anxious apprehension, anxious arousal, or neither. Reaction times were longer for negative than for neutral words. As predicted, brain activation distinguished anxious groups in a left inferior frontal region associated with speech production and in a right-hemisphere inferior temporal area. Addressing a second hypothesis about left-frontal involvement in emotion, distinct left frontal regions were associated with anxious apprehension versus processing of positive information. Results support the proposed distinction between the two types of anxiety and resolve an inconsistency about the role of left-frontal activation in emotion and psychopathology.
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