Correlates of figure-ground segregation in fMRI

被引：26
|
作者：
Skiera, G
Petersen, D
Skalej, M
Fahle, M
机构：
[1] Univ Bremen, D-28211 Bremen, Germany
[2] Univ Tubingen, Dept Neuroradiol, D-72076 Tubingen, Germany
[3] City Univ London, Dept Optometry & Visual Sci, London EC1V 7DD, England
来源：
VISION RESEARCH | 2000年 / 40卷 / 15期
关键词：
functional magnetic resonance imaging; primary visual cortex; bold-response; functional segmentation; visual system;
D O I：
10.1016/S0042-6989(00)00038-9
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
We investigated which correlates of figure-ground-segregation can be detected by means of functional magnetic resonance imaging (fMRI). Five subjects were scanned with a Siemens Vision 1.5 T system. Motion, colour, and luminance-defined checkerboards were presented with alternating control conditions containing one of the two features of the checkerboard. We find a segregation-specific activation in V1 for all subjects and all stimuli and conclude that neural mechanisms exist as early as in the primary visual cortex that are sensitive to figure-ground segregation. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2047 / 2056
页数：10
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