A few remarks on attention and magnocellular deficits in schizophrenia.

A few remarks on attention and magnocellular deficits in schizophrenia. Research Abstract Details 

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A few remarks on attention and magnocellular deficits in schizophrenia. Abstract Text:

Bernt Christian Skottun,John R Skoyles,Bernt Christian Skottun,John R Skoyles,Bernt Christian Skottun,John R Skoyles,

In connection with schizophrenia, it has been proposed that the magnocellular system is specifically linked to the guiding of covert visual attention. The argument is that the magnocellular pathway provides input to the dorsal cortical stream which then projects back to area V1. We review problems with this model. (1) It requires that responses in the magnocellular system have a lead time over responses in the parvocellular system. However, measurements indicate that the actual response time difference between the two systems is small or negligible when entering the visual cortex. (2) Attention can be modified by stimuli that do not activate the magnocellular system. And, (3) lesions to area MT in the dorsal stream impair smooth pursuit eye movements, but not saccadic eye movements which are associated with shifts in attention. For these reasons, it is difficult to link attention defects in schizophrenia to potential magnocellular deficits.

A few remarks on attention and magnocellular deficits in schizophrenia. Publishing Authors By Initials

BC Skottun,JR Skoyles,BC Skottun,JR Skoyles,BC Skottun,JR Skoyles,

For similar psychological phenomena and processes: mental processes: perception: visual perception research abstracts see: psychological phenomena and processes: mental processes: perception: visual perception research

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A few remarks on attention and magnocellular deficits in schizophrenia. Journal Published:

PUBLICATION TYPE: Review

Journal: Neuroscience and biobehavioral reviews

VOLUME: 32

Page Numbers: 118-22

Journal Abbreviation:

ISSN: 0149-7634

DAY: 27

MONTH: 06

YEAR: 2007

A few remarks on attention and magnocellular deficits in schizophrenia. Information

Number of References: 169

LANGUAGE: eng

NlmUniqueID: 7806090

A few remarks on attention and magnocellular deficits in schizophrenia. Keywords Mesh Terms:

KEYWORDS: Visual Perception

MESH TERMS: physiopathology

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Grant and Affiliation Information for A few remarks on attention and magnocellular deficits in schizophrenia.

AFFILIATION: Skottun Research, Oakland, CA, USA.

Country: United States

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MEDLINETA: Neurosci Biobehav Rev

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