Visual attention in the rat: a role for the prelimbic cortex and thalamic nuclei?
The behavioral effects of lesions of the prelimbic cortex (PL), mediodorsal nucleus of the thalamus (MD), and anterior thalamic nuclei (ANT) were investigated in 2 attentional tasks in rats: the 5-choice serial reaction time task and a vigilance task. Although there was no lesion effect on accurac...
| Publicado en: | Behavioral Neuroscience Vol. 115; no. 2; pp. 417 - 429 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Psychological Association
April 2001
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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=506350000&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 506350000 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: April 2001 vid: 115 iid: 2 pid: 34 pub: American Psychological Association artinfo: ui: 506350000 10.1037/0735-7044.115.2.417 ppf: 417 ppct: 12 formats: tig: atl: Visual attention in the rat: a role for the prelimbic cortex and thalamic nuclei? aug: au: Chudasama, Yogita Muir, Janice L. su: Attention Visual perception Laboratory rats Brain function localization sug: subj: Attention Visual perception Laboratory rats Brain function localization ab: The behavioral effects of lesions of the prelimbic cortex (PL), mediodorsal nucleus of the thalamus (MD), and anterior thalamic nuclei (ANT) were investigated in 2 attentional tasks in rats: the 5-choice serial reaction time task and a vigilance task. Although there was no lesion effect on accuracy in the 5-choice task, PL lesions enhanced perseverative responding during baseline performance and when stimulus duration was reduced. In contrast, MD lesions increased premature responding during baseline performance and when the intertrial interval was varied unpredictably. In the vigilance paradigm, PL lesions also impaired rats' ability to detect the light signal at baseline and at the reduced stimulus duration. ANT lesions did not substantially disrupt performance. The results suggest that different aspects of attention may be attributable to the PL and the MD and that the mechanisms underlying inhibitory control of behavior may be attributable to functionally different thalamocortical circuits. Reprinted by permission of the publishers. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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