Search Results - (Author, Cooperation:R. Schumer)

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  1. 1
    N. J. Finnegan ; R. Schumer ; S. Finnegan
    Nature Publishing Group (NPG)
    Published 2014
    Staff View
    Publication Date:
    2014-01-17
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    ISSN:
    1432-1106
    Keywords:
    Motion sensitivity ; Visual cortex ; Directionally selective neurons ; Strobe-reared cats ; Behavior
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Summary We reared cats in an environment illuminated stroboscopically at 8 Hz, and studied their ability to detect and discriminate the direction of motion of sinusoidal gratings. Normal cats, like humans, could discriminate the direction of a grating's motion at contrasts that are just barely visible. Strobe-reared cats could detect the grating at contrasts similar to those required by normal cats, but required contrasts that were about 10 times threshold to identify the direction of motion. We subsequently studied the activity of single units in the striate cortex in these cats, and found that directional motion selectivity — normally a prominant feature of striate cortical neurons — was almost absent; other cortical receptive field properties were roughly normal. These results suggest that directionally selective neurons are involved in visual discriminations based on the direction of motion.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00235638

    Articles: DFG German National Licenses