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dc.contributor.authorMarrett, NE
dc.contributor.authorde-Wit, LH
dc.contributor.authorRoser, ME
dc.contributor.authorKentridge, RW
dc.contributor.authorMilner, AD
dc.contributor.authorLambert, AJ
dc.date.accessioned2019-07-12T14:37:48Z
dc.date.available2019-07-12T14:37:48Z
dc.date.issued2011-11-18
dc.identifier.issn1350-6285
dc.identifier.issn1464-0716
dc.identifier.urihttp://hdl.handle.net/10026.1/14636
dc.description.abstract

The roles of dorsal and ventral processing streams in visual orienting and conscious perception were examined in two experiments. The first employed high density EEG with source localization. The second comprised a neuropsychological case study. Visual orienting was assessed with an attention procedure, where peripheral letters cued participants towards a target location. In the perception procedure participants responded to the same letters by performing an explicit conscious discrimination. In Experiment 1, the peripheral letters elicited rapid dorsal stream activation in the attention procedure, and this activation preceded top-down enhancement of target processing in occipital cortex. In the perception procedure early ventral stream activation was seen. In addition, peripheral letters elicited an "early directing attention negativity" (EDAN) over parietal recording sites in the attention procedure, but not in the perception procedure. In Experiment 2, a patient with a bilateral ventral stream lesion but preserved dorsal stream function showed clear disruption to performance in the perception procedure, whilst exhibiting a normal visual orienting effect in the attention procedure. Taken together these findings (1) highlight the distinct roles of the dorsal and ventral streams in attention and perception, and (2) suggest how these streams might interact, via reentrant effects of attention on perceptual processing. © 2011 Psychology Press.

dc.format.extent1089-1121
dc.languageen
dc.language.isoen
dc.publisherInforma UK Limited
dc.subjectAttention
dc.subjectDorsal stream
dc.subjectVentral stream
dc.subjectVisual orienting
dc.subjectVisual perception
dc.titleTesting the dorsal stream attention hypothesis: Electrophysiological correlates and the effects of ventral stream damage
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000298350200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue9
plymouth.volume19
plymouth.publication-statusPublished
plymouth.journalVISUAL COGNITION
dc.identifier.doi10.1080/13506285.2011.622729
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Health
plymouth.organisational-group/Plymouth/Faculty of Health/School of Psychology
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA04 Psychology, Psychiatry and Neuroscience
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Centre for Brain, Cognition and Behaviour (CBCB)
plymouth.organisational-group/Plymouth/Research Groups/Centre for Brain, Cognition and Behaviour (CBCB)/Brain
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.identifier.eissn1464-0716
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1080/13506285.2011.622729
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review


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