Perirhinal cortex and feature-ambiguous discriminations
نویسندگان
چکیده
منابع مشابه
Perirhinal cortex and feature-ambiguous discriminations.
Perirhinal cortex is often regarded as part of a medial temporal lobe (MTL) memory system, mediating memory selectively, and having little role in other functions such as perception (e.g., Squire and Zola-Morgan 1991; Buffalo et al. 1998, 1999; Squire et al. 2004). We and others have argued against this idea, suggesting instead that perirhinal cortex may have a role in perception (e.g., Buckley...
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We developed a behavioral paradigm for the rat that made it possible to separate the evaluation of memory functions from the evaluation of perceptual functions. Animals were given extensive training on an automated two-choice discrimination task and then maintained their memory performance at a high level while interpolated probe trials tested visual perceptual ability. The probe trials systema...
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The present experiment tested predictions of a 'perceptual-mnemonic/feature conjunction' (PMFC) model of perirhinal cortex function. The model predicts that lesions of perirhinal cortex should disrupt complex visual discriminations with a high degree of 'feature ambiguity', a property of visual discrimination problems that can emerge when features of an object are rewarded when they are part of...
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The perirhinal cortex is known to be important for memory, but there has recently been interest in the possibility that it might also be involved in visual perceptual functions. In four experiments, we assessed visual discrimination ability and visual discrimination learning in severely amnesic patients with large medial temporal lobe lesions that included complete lesions of perirhinal cortex....
متن کاملHippocampus, perirhinal cortex, and complex visual discriminations in rats and humans.
Structures in the medial temporal lobe, including the hippocampus and perirhinal cortex, are known to be essential for the formation of long-term memory. Recent animal and human studies have investigated whether perirhinal cortex might also be important for visual perception. In our study, using a simultaneous oddity discrimination task, rats with perirhinal lesions were impaired and did not ex...
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ژورنال
عنوان ژورنال: Learning & Memory
سال: 2006
ISSN: 1072-0502
DOI: 10.1101/lm.163606