Abstract：
:Neurophysiological studies in nonhuman primates have demonstrated that the prefrontal cortex (PFC) plays a critical role in the acquisition of learned categories following training. What is presently unclear is whether this cortical area also plays a role in spontaneous recognition and discrimination of natural categories. Here, we explore this possibility by recording from neurons in the PFC while rhesus listen to species-specific vocalizations that vary in terms of their social function and acoustic morphology. We found that ventral prefrontal cortex (vPFC) activity, on average, did not differentiate between food calls that were associated with the same functional category, despite having different acoustic properties. In contrast, vPFC activity differentiated between food calls associated with different functional classes and specifically, information about the quality and motivational value of the food. These results suggest that the vPFC is involved in the categorization of socially meaningful signals, thereby both extending its previously conceived role in the acquisition of learned categories and showing the significance of using natural categorical distinctions in the study of neural mechanisms.
journal_name
J Cogn Neuroscijournal_title
Journal of cognitive neuroscienceauthors
Gifford GW 3rd,MacLean KA,Hauser MD,Cohen YEdoi
10.1162/0898929054985464subject
Has Abstractpub_date
2005-09-01 00:00:00pages
1471-82issue
9eissn
0898-929Xissn
1530-8898journal_volume
17pub_type
杂志文章abstract：:Interhemispheric inhibition (IHI) between motor cortical areas is thought to play a critical role in motor control and could influence manual dexterity. The purpose of this study was to investigate IHI preceding movements of the dominant and nondominant hands of healthy volunteers. Movement-related IHI was studied by ...
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journal_title：Journal of cognitive neuroscience
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journal_title：Journal of cognitive neuroscience
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pub_type： 临床试验,杂志文章
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