The Effect of Rat Anterior Cingulate Inactivation on Cognitive Flexibility.
The present experiment investigated the effects of muscimol injections into the rat dorsal anterior cingulate on the acquisition and reversal learning of a 4-choice odor discrimination. Long-Evans rats were trained to dig in cups that contained distinct odors. In the odor discrimination, one odor cu...
| Publicado en: | Behavioral Neuroscience Vol. 121; no. 4; pp. 698 - 707 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Psychological Association
August 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=506866210&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 506866210 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: August 2007 vid: 121 iid: 4 pid: 34 pub: American Psychological Association artinfo: ui: 506866210 10.1037/0735-7044.121.4.698 ppf: 698 ppct: 9 formats: tig: atl: The Effect of Rat Anterior Cingulate Inactivation on Cognitive Flexibility. aug: au: Ragozzino, Michael E. Rozman, Suzanne su: Rat behavior Laboratory rats Differentiation (Cognition) Brain function localization sug: subj: Rat behavior Laboratory rats Differentiation (Cognition) Brain function localization keyword: Discrimination (Psychology) ab: The present experiment investigated the effects of muscimol injections into the rat dorsal anterior cingulate on the acquisition and reversal learning of a 4-choice odor discrimination. Long-Evans rats were trained to dig in cups that contained distinct odors. In the odor discrimination, one odor cup contained a cereal reinforcement in acquisition whereas a different odor cup contained a cereal reinforcement in reversal learning. The other 2 odor cups were never associated with reinforcement. Bilateral infusions of the gamma aminobutyric acid-A agonist muscimol did not impair acquisition of the odor discrimination but impaired reversal learning in a dose-dependent manner. During reversal learning, dorsal anterior cingulate inactivation did not lead to perseveration but selectively increased errors to the odor cups that were never reinforced. These findings suggest that the dorsal anterior cingulate supports learning when conditions require a shift in choice patterns and may enhance cognitive flexibility by decreasing interference of irrelevant stimuli. 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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