Abstract：
:This event-related potential (ERP) study investigated neural correlates of cognitive reappraisal during the exposure to food cues. Thirty-three healthy, normal-weight women viewed images of high-caloric food and non-food items after an overnight fast. The participants were instructed to either passively look at the pictures, or to change (increase, decrease) the appetitive value of the food items. The P300 and the late positive potential (LPP) were higher across all conditions for food relative to non-food pictures. In the 'increase condition' the food images were rated as more appetizing and arousing than during passive viewing which was accompanied by increased amplitudes of the P300 and LPP. In contrast, the 'watch condition' and the 'decrease condition' did not differ with regard to appetite and arousal ratings as well as ERPs. Amplitudes of late positive potentials in the 'decrease condition' were positively correlated with scores on eating disorder scales indicating bulimic tendencies. The ERP data show that the appetitive value of food cues can easily be enhanced via reappraisal but is difficult to reduce, especially in women who display non-clinical forms of purging. The reduced ERP reactivity might constitute a risk factor for bulimia nervosa. Future longitudinal-prospective studies should follow up on this aspect.
journal_name
Biol Psycholjournal_title
Biological psychologyauthors
Sarlo M,Ubel S,Leutgeb V,Schienle Adoi
10.1016/j.biopsycho.2013.09.006subject
Has Abstractpub_date
2013-12-01 00:00:00pages
507-12issue
3eissn
0301-0511issn
1873-6246pii
S0301-0511(13)00197-Xjournal_volume
94pub_type
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pub_type： 杂志文章,随机对照试验
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