Neural correlates of unconditioned response diminution during Pavlovian conditioning.
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ABSTRACT:
SUBMITTER: Dunsmoor JE
PROVIDER: S-EPMC2712889 | biostudies-literature | 2008 Apr
REPOSITORIES: biostudies-literature
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Neural correlates of unconditioned response diminution during Pavlovian conditioning.
Dunsmoor Joseph E JE Bandettini Peter A PA Knight David C DC
NeuroImage 20071208 2
Pavlovian conditioning research has shown that unconditioned responses (UCR) to aversive unconditioned stimuli (UCS) are reduced when a UCS is predictable. This effect is known as UCR diminution. In the present study, we examined UCR diminution in the functional magnetic resonance imaging (fMRI) signal by varying the rate at which a neutral conditioned stimulus (CS) was paired with an aversive UCS. UCR diminution was observed within several brain regions associated with fear learning, including ...[more]
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