The effect of lesions to cortical areas V4 or AIT on pupillary responses to chromatic and achromatic stimuli in monkeys

被引：0
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作者：
C. A. Heywood
J. J. Nicholas
C. LeMare
A. Cowey
机构：
[1] Department of Psychology,
[2] Science Laboratories,undefined
[3] South Road,undefined
[4] Durham,undefined
[5] DH1 3LE.,undefined
[6] UK e-mail: C.A.Heywood@durham.ac.uk,undefined
[7] Tel.: +44-191-374-624; Fax: +44-191-374-7474,undefined
[8] Mayo Clinic,undefined
[9] 200 First Street,undefined
[10] SW Rochester,undefined
[11] MN 55905,undefined
[12] USA,undefined
[13] Department of Experimental Psychology,undefined
[14] South Parks Road,undefined
[15] Oxford,undefined
[16] OX1 3UD,undefined
[17] UK,undefined
来源：
Experimental Brain Research | 1998年 / 122卷
关键词：
Key words Pupillary response; Achromatopsia; Area V4;
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摘要：
We measured the pupillary response to achromatic and chromatic grating stimuli in left and right visual hemifields of two rhesus monkeys, who were trained to fixate the centre of a screen. After removing the rostral inferior temporal cortex of one hemisphere, the response to chromatically modulated gratings in the contralateral hemifield was abolished, whereas the response to the luminance modulated grating was unaffected. In one of the monkeys, in which area V4 of the other hemisphere was also removed, there was no effect on the pupillary response to either kind of grating presented in the hemifield contralateral to the V4 lesion. The results show that the cortical contribution to the response of the pupil to purely chromatic changes is mediated by rostral temporal cortex, not by area V4.
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页码：475 / 480
页数：5
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