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Titolo:
Human cortical processing of colour and pattern
Autore:
Barrett, NA; Large, MM; Smith, GL; Michie, PT; Karayanidis, F; Kavanagh, DJ; Fawdry, R; Henderson, D; OSullivan, BT;
Indirizzi:
Univ Sydney, Dept Physiol, Sydney, NSW 2006, Australia Univ Sydney SydneyNSW Australia 2006 hysiol, Sydney, NSW 2006, Australia Royal Prince Alfred Hosp, Dept Psychiat, Sydney, NSW, Australia Royal Prince Alfred Hosp Sydney NSW Australia at, Sydney, NSW, Australia Univ Western Australia, Dept Psychol, Perth, WA 6009, Australia Univ Western Australia Perth WA Australia 6009 Perth, WA 6009, Australia Univ Western Australia, Dept Psychiat & Behav Sci, Perth, WA 6009, Australia Univ Western Australia Perth WA Australia 6009 Perth, WA 6009, Australia Univ Newcastle, Dept Psychol, Callaghan, NSW, Australia Univ Newcastle Callaghan NSW Australia sychol, Callaghan, NSW, Australia Univ Queensland, Dept Psychiat, Herston, Qld, Australia Univ Queensland Herston Qld Australia Psychiat, Herston, Qld, Australia Natl Med Cyclotron, Sydney, NSW, Australia Natl Med Cyclotron Sydney NSW Australia yclotron, Sydney, NSW, Australia
Titolo Testata:
HUMAN BRAIN MAPPING
fascicolo: 4, volume: 13, anno: 2001,
pagine: 213 - 225
SICI:
1065-9471(200108)13:4<213:HCPOCA>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; VISUAL WORKING-MEMORY; HUMAN EXTRASTRIATE CORTEX; RHESUS-MONKEY; HUMAN BRAIN; FUNCTIONAL-ANATOMY; NEURAL SYSTEMS; OCCIPITOTEMPORAL CORTEX; VISUOSPATIAL ATTENTION; FORM DISCRIMINATION;
Keywords:
PET; vision; visual attention; cortical colour processing; cortical pattern processing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
83
Recensione:
Indirizzi per estratti:
Indirizzo: O'Sullivan, BT Royal Prince Alfred Hosp, Dept Psychiat, Missenden Rd, Camperdown, NSW, Australia Royal Prince Alfred Hosp Missenden Rd Camperdown NSWAustralia
Citazione:
N.A. Barrett et al., "Human cortical processing of colour and pattern", HUM BRAIN M, 13(4), 2001, pp. 213-225

Abstract

The present study investigates human visual processing of simple two-colour patterns using a delayed match to sample paradigm with positron emission tomography (PET). This study is unique in that we specifically designed thevisual stimuli to be the same for both pattern and colour recognition withall patterns being abstract shapes not easily verbally coded composed of two-colour combinations. We did this to explore those brain regions requiredfor both colour and pattern processing and to separate those areas of activation required for one or the other. We found that both tasks activated similar occipital regions, the major difference being more extensive activation in pattern recognition. A right-sided network that involved the inferiorparietal lobule, the head of the caudate nucleus, and the pulvinar nucleusof the thalamus was common to both paradigms. Pattern recognition also activated the left temporal pole and right lateral orbital gyrus, whereas colour recognition activated the left fusiform gyrus and several right frontal regions. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 16:12:30