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Abstract #25293 Published in IGR 12-1
Differential vertical visual latency as determined with a simultaneity paradigm
Patel S; Schwartz S H; Swanson W HVision Research 2010; 50: 534-540
Behavioral studies, as well as anatomical and physiological data, suggest differences in functionality for inferior and superior visual fields. Previous investigations comparing latencies of the two fields have employed motor reaction times. This approach is of limited usefulness in elderly clinical populations where various degrees of motor impairment may be present. In this report, we describe a simultaneity paradigm that allows the determination of relative latencies without dependence on motor reaction times. A slightly, but statistically significant, shorter latency (3.9 (plus or minus) 5.9 ms) was found for the superior visual field. The results are not affected by age, and both within- and between-session variability are low.
S.H. Schwartz. State College of Optometry, State University of New York, 33 West 42nd Street, New York, NY 10036, United States. sschwartz@sunyopt.edu
Classification:
6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
