Abstract：
:We used event-related fMRI to measure neural activity in volunteer subjects during acquisition of an implicit association between a visual conditioned stimulus (CS+) (angry face) and an auditory unconditioned stimulus (UCS) (aversive, loud noise). Three distinct functional regions were identified within left amygdala: a UCS (noise)-related lateral region, a CS+-related ventral region, and a dorsal region where CS+-related responses changed progressively across the learning session. Differential neural responses to the visual CS+ were also evoked in extrastriate and auditory cortices. Our results indicate that learning an association between biologically salient stimuli of different sensory modalities involves parallel changes of neural activity in segregated amygdala subregions and unimodal sensory cortices.
journal_name
Neuroimagejournal_title
NeuroImageauthors
Morris JS,Buchel C,Dolan RJdoi
10.1006/nimg.2000.0721keywords:
subject
Has Abstractpub_date
2001-06-01 00:00:00pages
1044-52issue
6 Pt 1eissn
1053-8119issn
1095-9572pii
S1053-8119(00)90721-3journal_volume
13pub_type
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