Spatial characteristics of visual-auditory summation in human saccades

被引：60

作者：

Hughes, HC ^{[1
]}

Nelson, MD ^{[1
]}

Aronchick, DM ^{[1
]}

机构：

[1] Dartmouth Coll, Dept Psychol, Hanover, NH 03755 USA

来源：

VISION RESEARCH | 1998年 / 38卷 / 24期

关键词：

auditory-visual; convergence; saccade latencies;

D O I：

10.1016/S0042-6989(98)00036-4

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Bimodal (auditory + visual) stimuli reduce saccade latencies in human observers to a degree that exceeds levels predictable by probabilistic summation between parallel, independent unimodal pathways. These interactions have been interpreted in terms of converging visual and auditory afferents within the oculomotor pathways, specifically within the superior colliculus (SC). The present work describes the spatial tuning of auditory-visual summation in human saccades, using diagnostics derived from stochastic models of information processing. Consistent with expectations based on the electrophysiology of the SC, the magnitude of facilitation varied with the degree of spatial correspondence. and the spatial tuning was quite coarse. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：3955 / 3963

页数：9

共 54 条

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[2]

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