Contribution of extrastriate area V4 to the surface-recorded flash VEP in the awake macaque

S. J. Givre; C. E. Schroeder; J. C. Arezzo

doi:10.1016/0042-6989(94)90156-2

Contribution of extrastriate area V4 to the surface-recorded flash VEP in the awake macaque

S. J. Givre, C. E. Schroeder, J. C. Arezzo

Neuroscience

Research output: Contribution to journal › Article › peer-review

106 Scopus citations

Abstract

This study compared striate and extrastriate contributions to the surface-recorded flash VEP. Laminar visual evoked potential, current source density and multiunit activity profiles were obtained with multicontact electrodes from areas V1 and V4 in three awake macaques. As found earlier, the major striate contribution is to early (N40, P55-80) components. Major contributions to the later (N95, P120, Late Negativity) components arise from V4. Early, afferent-triggered inhibition in V4 also produces a small contribution to N40. Response latencies in V4 vs V1 suggest an input to V4, bypassing VI, emphasizing a parallel processing component of visual system organization.

Original language	English (US)
Pages (from-to)	415-428
Number of pages	14
Journal	Vision Research
Volume	34
Issue number	4
DOIs	https://doi.org/10.1016/0042-6989(94)90156-2
State	Published - Feb 1994

Keywords

Alert monkey
Area V4
Current source density analysis
Multiunit activity
VEP

ASJC Scopus subject areas

Ophthalmology
Sensory Systems

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10.1016/0042-6989(94)90156-2

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title = "Contribution of extrastriate area V4 to the surface-recorded flash VEP in the awake macaque",

abstract = "This study compared striate and extrastriate contributions to the surface-recorded flash VEP. Laminar visual evoked potential, current source density and multiunit activity profiles were obtained with multicontact electrodes from areas V1 and V4 in three awake macaques. As found earlier, the major striate contribution is to early (N40, P55-80) components. Major contributions to the later (N95, P120, Late Negativity) components arise from V4. Early, afferent-triggered inhibition in V4 also produces a small contribution to N40. Response latencies in V4 vs V1 suggest an input to V4, bypassing VI, emphasizing a parallel processing component of visual system organization.",

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AU - Givre, S. J.

AU - Schroeder, C. E.

AU - Arezzo, J. C.

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AB - This study compared striate and extrastriate contributions to the surface-recorded flash VEP. Laminar visual evoked potential, current source density and multiunit activity profiles were obtained with multicontact electrodes from areas V1 and V4 in three awake macaques. As found earlier, the major striate contribution is to early (N40, P55-80) components. Major contributions to the later (N95, P120, Late Negativity) components arise from V4. Early, afferent-triggered inhibition in V4 also produces a small contribution to N40. Response latencies in V4 vs V1 suggest an input to V4, bypassing VI, emphasizing a parallel processing component of visual system organization.

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KW - Current source density analysis

KW - Multiunit activity

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Contribution of extrastriate area V4 to the surface-recorded flash VEP in the awake macaque

Abstract

Keywords

ASJC Scopus subject areas

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