Role of a Lateralized Parietal-Basal Ganglia Circuit in Hierarchical Pattern Perception: Evidence From Parkinson's Disease.
The role of corticostriatal circuits in hierarchical pattern perception was examined in Parkinson's disease. The hypothesis was tested that patients with right-side onset of motor symptoms (RPD, left hemisphere dysfunction) would be impaired at local level processing because the left posterior tempo...
| Publicado en: | Behavioral Neuroscience Vol. 123; no. 1; pp. 125 - 137 |
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| Autores principales: | , , |
| Formato: | Artículo |
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American Psychological Association
February 2009
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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=506897319&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 506897319 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: February 2009 vid: 123 iid: 1 pid: 34 pub: American Psychological Association artinfo: ui: 506897319 10.1037/a0013734 ppf: 125 ppct: 12 formats: tig: atl: Role of a Lateralized Parietal-Basal Ganglia Circuit in Hierarchical Pattern Perception: Evidence From Parkinson's Disease. aug: au: Schendan, Haline E. Amick, Melissa M. Cronin-Golomb, Alice su: Visual perception Laterality Cerebral hemispheres Functional assessment of Parkinson's disease patients sug: subj: Visual perception Laterality Cerebral hemispheres Functional assessment of Parkinson's disease patients ab: The role of corticostriatal circuits in hierarchical pattern perception was examined in Parkinson's disease. The hypothesis was tested that patients with right-side onset of motor symptoms (RPD, left hemisphere dysfunction) would be impaired at local level processing because the left posterior temporoparietal junction (TP) emphasizes processing of local information. By contrast, left-side onset patients (LPD; right hemisphere dysfunction) would show impaired global processing because right TP emphasizes global processing. Participants identified targets at local or global levels without and with attention biased toward those levels. Despite normal attentional control between levels, LPD patients showed a single dissociation, demonstrating abnormal global level processing under all conditions, whereas RPD patients showed abnormal local level processing mainly when attention was biased toward the local level. These findings link side of motor symptom onset to visuospatial cognitive abilities that depend upon the contralateral TP, highlighting that side of onset can predict visuospatial impairments, and provide evidence that an inferior parietal — basal ganglia pathway involving the caudate head and the hemispherically asymmetrical TP region is necessary for hierarchical pattern perception. 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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