ACTIVATION OF AREA V5 BY VISUAL-PERCEPTION OF MOTION DEMONSTRATED WITH ECHOPLANAR MR-IMAGING

被引：12

作者：

HOWARD, RJ

BULLMORE, E

BRAMMER, M

WILLIAMS, SCR

MELLERS, J

WOODRUFF, P

DAVID, A

ANDREW, C

ALLIN, M

SIMMONS, A

COX, T

机构：

[1] Institute of Psychiatry, Camberwell, London

来源：

MAGNETIC RESONANCE IMAGING | 1995年 / 13卷 / 06期

关键词：

EPI; MOTION PERCEPTION; VISUAL CORTEX; V5;

D O I：

10.1016/0730-725X(95)00042-F

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Cortical activation in visual association areas known to be responsible for the perception of motion was investigated in two volunteers who viewed a projected animated cartoon periodically ''run'' and ''frozen'' during collection of echoplanar MR images. Ten axial, contiguous, 5 mm thick, T-2-weighted, gradient-echo images (TE 40 ms, TR 3000 ms) depicting BOLD contrast were acquired through the occipital lobe using a GE Signa 1.5 T system with an advanced NMR operating console. Images were analysed by time series regression modelling estimating power in the MR signal at the ON-OFF frequency of motion. Highly significant activation in response to motion perception was identified in both subjects bilaterally in area V5.

引用

页码：907 / 909

页数：3

共 13 条

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