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Perirhinal Cortex Lesions Impair Simultaneous but Not Serial Feature-Positive Discrimination Learning
Journal article   Peer reviewed

Perirhinal Cortex Lesions Impair Simultaneous but Not Serial Feature-Positive Discrimination Learning

Matthew M Campolattaro and John H Freeman
Behavioral neuroscience, Vol.120(4), pp.970-975
08/2006
DOI: 10.1037/0735-7044.120.4.970
PMCID: PMC2556364
PMID: 16893302

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Abstract

The role of the perirhinal cortex in discriminative eyeblink conditioning was examined by means of feature-positive discrimination procedures with simultaneous (A−/XA+) and serial (A−/X→A+) stimulus compounds. Lesions of the perirhinal cortex severely impaired acquisition of simultaneous feature-positive discrimination but produced no impairment in serial feature-positive discrimination. The results suggest that the perirhinal cortex plays a role in discriminative eyeblink conditioning by resolving ambiguity in discriminations with overlapping stimulus elements.
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