Speed, spatial, and temporal tuning of rod and cone vision in mouse.

Speed, spatial, and temporal tuning of rod and cone vision in mouse. Research Abstract Details 

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Speed, spatial, and temporal tuning of rod and cone vision in mouse. Abstract Text:

Yumiko Umino,Eduardo Solessio,Robert B Barlow,Yumiko Umino,Eduardo Solessio,Robert B Barlow,

Rods and cones subserve mouse vision over a 100 million-fold range of light intensity (-6 to 2 log cd m(-2)). Rod pathways tune vision to the temporal frequency of stimuli (peak, 0.75 Hz) and cone pathways to their speed (peak, approximately 12 degrees/s). Both pathways tune vision to the spatial components of stimuli (0.064-0.128 cycles/degree). The specific photoreceptor contributions were determined by two-alternative, forced-choice measures of contrast thresholds for optomotor responses of C57BL/6J mice with normal vision, Gnat2(cpfl3) mice without functional cones, and Gnat1-/- mice without functional rods. Gnat2(cpfl3) mice (threshold, -6.0 log cd m(-2)) cannot see rotating gratings above -2.0 log cd m(-2) (photopic vision), and Gnat1-/- mice (threshold, -4.0 log cd m(-2)) are blind below -4.0 log cd m(-2) (scotopic vision). Both genotypes can see in the transitional mesopic range (-4.0 to -2.0 log cd m(-2)). Mouse rod and cone sensitivities are similar to those of human. This parametric study characterizes the functional properties of the mouse visual system, revealing the rod and cone contributions to contrast sensitivity and to the temporal processing of visual stimuli.

Speed, spatial, and temporal tuning of rod and cone vision in mouse. Publishing Authors By Initials

Y Umino,E Solessio,RB Barlow,Y Umino,E Solessio,RB Barlow,

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Speed, spatial, and temporal tuning of rod and cone vision in mouse. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: The Journal of neuroscience : the official journal

VOLUME: 28

Page Numbers: 189-98

Journal Abbreviation: J. Neurosci.

ISSN: 1529-2401

DAY: 2

MONTH: Jan

YEAR: 2008

Speed, spatial, and temporal tuning of rod and cone vision in mouse. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Speed, spatial, and temporal tuning of rod and cone vision in mouse.

AFFILIATION: Center for Vision Research, Department of Ophthalmology, State University of New York, Upstate Medical University, Syracuse, New York 13210, USA.

Country: United States

AGENCY: United States NIMH

GRANT: MH49741

ACRONYM: MH

MEDLINETA: J Neurosci

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