UNMASKING HUMAN VISUAL-PERCEPTION WITH THE MAGNETIC COIL AND ITS RELATIONSHIP TO HEMISPHERIC-ASYMMETRY

被引：53

作者：

AMASSIAN, VE ^{[1
]}

CRACCO, RQ ^{[1
]}

MACCABEE, PJ ^{[1
]}

CRACCO, JB ^{[1
]}

RUDELL, AP ^{[1
]}

EBERLE, L ^{[1
]}

机构：

[1] SUNY HLTH SCI CTR,DEPT NEUROL,BROOKLYN,NY 11203

来源：

BRAIN RESEARCH | 1993年 / 605卷 / 02期

关键词：

HUMAN VISION; UNMASKING; MAGNETIC COIL; HEMISPHERIC ASYMMETRY;

D O I：

10.1016/0006-8993(93)91757-J

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Visual suppression by a magnetic coil (MC) pulse delivered over human calcarine cortex after a transient visual stimulus 80-100 ms earlier1 has been used to suppress the representation of a 'masking' visual stimulus and thus to unmask a 'target' visual stimulus given, e.g., 100 ms before the mask. The resulting target unmasking as a function of the interval between mask and MC pulse is approximately the inverse of the visual suppression curve. Arbitrary visual linear patterns can similarly be unmasked. At the long target-mask interval used, the site of masking is deduced to lie beyond calcarine cortex. In several right-handed subjects tested, powerful MC stimulation of the left (but not right) temporo-parieto-occipital cortex also led to (weaker) unmasking.

引用

页码：312 / 316

页数：5

共 10 条

[1] A SENSE OF MOVEMENT ELICITED IN PARALYZED DISTAL ARM BY FOCAL MAGNETIC COIL STIMULATION OF HUMAN MOTOR CORTEX [J].