Binocular Facilitation in the VEP of Normal Observers and Strabismic Amblyopes

Author(s):  
P. A. Apkarian ◽  
C. W. Tyler

2019 ◽  
Vol 67 (4) ◽  
Author(s):  
Manuel Spitschan ◽  
Christian Cajochen


2009 ◽  
Vol 50 (3) ◽  
pp. 1168 ◽  
Author(s):  
Anthony M. Norcia ◽  
Julia Hale ◽  
Mark W. Pettet ◽  
Suzanne P. McKee ◽  
Richard A. Harrad


1966 ◽  
Vol 75 (5) ◽  
pp. 683-688 ◽  
Author(s):  
J. D. WIRTSCHAFTER ◽  
C. M. BOURASSA


1986 ◽  
Vol 229 (1256) ◽  
pp. 227-256 ◽  

New knowledge concerning the internal structure and response properties of the receptive fields of striate cells calls for a fresh appraisal of their binocular interactions in the interest of a better understanding of the neural mechanisms underlying binocular depth discrimination. Binocular position-disparity response profiles were recorded from 71 simple and B-cells in response to moving light and dark bars. Predominantly excitatory (PE) cells ( N = 48) had disparity response profiles that were spatially closely similar to their respective monocular responses. In addition, the centrally located excitatory subregions were flanked on one or both sides by non-specific inhibitory regions, PE cells with a preferred stimulus orientation within 30° of the vertical ( N = 17) showed binocular facilitations with maximal values that were always more than twice (mean 3.3) the sum of the two monocular responses to the same stimuli and generally greater than the facilitations shown by cells with orientations more than 30° from the vertical ( N = 29; mean 2.2 times the sum of the respective monocular responses). The strength of the binocular facilitation depended on the stimulus contrast, the facilitation decreasing with increasing contrast. The receptive-field disparity distribution of the 31 PE cells capable of making significant horizontal disparity discriminations has standard deviations of 0.37° and 0.40°, respectively. Predominantly inhibitory cells (PI) ( N = 23) showed two basic types of disparity response profile: symmetric ( N = 17) and asymmetric ( N = 6). Uncertainty regarding the precise location of the binocular fixation point in the anaesthetized and paralysed preparation made it difficult to categorize PI cells adequately.



1981 ◽  
Vol 58 (10) ◽  
pp. 820-830 ◽  
Author(s):  
PATRICIA APKARIAN ◽  
DENNIS LEVI ◽  
CHRISTOPHER W. TYLER


2017 ◽  
Vol 101 (1) ◽  
pp. 69-72 ◽  
Author(s):  
Jeff Rabin ◽  
Andrew Kryder ◽  
Dan Lam


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