Role of the Medial Prefrontal Cortex in Acquired Distinctiveness and Equivalence of Cues.
In the present study, the authors examined the role of the medial prefrontal cortex in acquired equivalence and distinctiveness of cues. Rats were placed in 4 experimental contexts (A, B, C, and D) where they received presentations of 2 auditory stimuli (X and Y). In Contexts A and B, X was paired w...
| Publicado en: | Behavioral Neuroscience Vol. 121; no. 6; pp. 1431 - 1437 |
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| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
American Psychological Association
December 2007
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=506725856&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 506725856 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 07357044 BEN jtl: Behavioral Neuroscience issn: 07357044 maglogo: N pubinfo: dt: December 2007 vid: 121 iid: 6 pid: 34 pub: American Psychological Association artinfo: ui: 506725856 10.1037/0735-7044.121.6.1431 ppf: 1431 ppct: 6 formats: tig: atl: Role of the Medial Prefrontal Cortex in Acquired Distinctiveness and Equivalence of Cues. aug: au: Iordanova, M. D. Killcross, A. S. Honey, R. C. su: Laboratory rats Brain function localization Prefrontal cortex Differentiation (Cognition) sug: subj: Laboratory rats Brain function localization Prefrontal cortex Differentiation (Cognition) keyword: Discrimination (Psychology) ab: In the present study, the authors examined the role of the medial prefrontal cortex in acquired equivalence and distinctiveness of cues. Rats were placed in 4 experimental contexts (A, B, C, and D) where they received presentations of 2 auditory stimuli (X and Y). In Contexts A and B, X was paired with food and Y was not, whereas in Contexts C and D, Y was paired with food and X was not. Rats that received sham lesions and those with lesions of the medial prefrontal cortex acquired this configural discrimination equally readily. Rats then received many pellets in A but not in C. After this training, sham-lesion rats exhibited more magazine activity in B than in D (an acquired distinctiveness/acquired equivalence effect), whereas those with medial prefrontal cortex lesions did not. These results indicate that the medial prefrontal cortex is involved in the process by which experience with stimuli influences the degree of generalization between them. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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