Functional imaging of the mechanisms underlying the bilateral field advantage

A M Santhouse; D H ffytche; R J Howard; S C R Williams; L Rifkin; R M Murray

doi:10.1016/S1053-8119(02)91186-9

Functional imaging of the mechanisms underlying the bilateral field advantage

A M Santhouse, D H ffytche, R J Howard, S C R Williams, L Rifkin, R M Murray

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

6 Citations (Scopus)

Abstract

Visual stimulus comparisons across the vertical meridian are faster and more accurate than those restricted to a single hemifield (the bilateral field advantage). We set out to investigate the cerebral mechanisms underlying this effect using functional magnetic resonance imaging. Seven normal volunteers were presented pairs of shape stimuli bilaterally across the vertical meridian and unilaterally within a single hemifield. We found a network of additional areas activated in the unilateral condition over the bilateral condition which have been related to working memory in previous studies. The results suggest different processing strategies with different temporal characteristics in the bilateral and unilateral conditions, providing a novel explanation for the bilateral field advantage. (C) 2002 Elsevier Science (USA).

Original language	English
Pages (from-to)	680 - 687
Number of pages	8
Journal	NeuroImage
Volume	17
Issue number	2
DOIs	https://doi.org/10.1016/S1053-8119(02)91186-9
Publication status	Published - 2002

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10.1016/S1053-8119(02)91186-9

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title = "Functional imaging of the mechanisms underlying the bilateral field advantage",

abstract = "Visual stimulus comparisons across the vertical meridian are faster and more accurate than those restricted to a single hemifield (the bilateral field advantage). We set out to investigate the cerebral mechanisms underlying this effect using functional magnetic resonance imaging. Seven normal volunteers were presented pairs of shape stimuli bilaterally across the vertical meridian and unilaterally within a single hemifield. We found a network of additional areas activated in the unilateral condition over the bilateral condition which have been related to working memory in previous studies. The results suggest different processing strategies with different temporal characteristics in the bilateral and unilateral conditions, providing a novel explanation for the bilateral field advantage. (C) 2002 Elsevier Science (USA).",

author = "Santhouse, {A M} and ffytche, {D H} and Howard, {R J} and Williams, {S C R} and L Rifkin and Murray, {R M}",

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T1 - Functional imaging of the mechanisms underlying the bilateral field advantage

AU - Santhouse, A M

AU - ffytche, D H

AU - Howard, R J

AU - Williams, S C R

AU - Rifkin, L

AU - Murray, R M

PY - 2002

Y1 - 2002

N2 - Visual stimulus comparisons across the vertical meridian are faster and more accurate than those restricted to a single hemifield (the bilateral field advantage). We set out to investigate the cerebral mechanisms underlying this effect using functional magnetic resonance imaging. Seven normal volunteers were presented pairs of shape stimuli bilaterally across the vertical meridian and unilaterally within a single hemifield. We found a network of additional areas activated in the unilateral condition over the bilateral condition which have been related to working memory in previous studies. The results suggest different processing strategies with different temporal characteristics in the bilateral and unilateral conditions, providing a novel explanation for the bilateral field advantage. (C) 2002 Elsevier Science (USA).

AB - Visual stimulus comparisons across the vertical meridian are faster and more accurate than those restricted to a single hemifield (the bilateral field advantage). We set out to investigate the cerebral mechanisms underlying this effect using functional magnetic resonance imaging. Seven normal volunteers were presented pairs of shape stimuli bilaterally across the vertical meridian and unilaterally within a single hemifield. We found a network of additional areas activated in the unilateral condition over the bilateral condition which have been related to working memory in previous studies. The results suggest different processing strategies with different temporal characteristics in the bilateral and unilateral conditions, providing a novel explanation for the bilateral field advantage. (C) 2002 Elsevier Science (USA).

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U2 - 10.1016/S1053-8119(02)91186-9

DO - 10.1016/S1053-8119(02)91186-9

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SN - 1095-9572

VL - 17

SP - 680

EP - 687

JO - NeuroImage

JF - NeuroImage

IS - 2

ER -

Functional imaging of the mechanisms underlying the bilateral field advantage

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