In:
Swiss Journal of Psychology, Hogrefe Publishing Group, Vol. 63, No. 3 ( 2004-09), p. 201-205
Abstract:
We tested the validity of Nickalls’ formula for determining visual latency difference by using two rotating Pulfrich techniques: (A) varying viewing distance while keeping target angular velocity constant (33 rev/min) and (B) varying the target angular velocity while keeping the viewing distance constant (180 cm). The formula predicts that the latency differences estimated by the two techniques are equal with a given neutral density filter. Observers were asked to judge whether or not the rotating target (clockwise) appeared to move back-and-forth from side-to-side with a neutral density filter (OD = 0.7, 1.0, 1.3) in front of the right eye. The results with ten observers showed that the mean visual latency differences associated with each technique for a given filter were not significantly different. These results further validate the Nickalls’ formula and, therefore, support the visual-latency hypothesis to account for the Pulfrich phenomenon.
Type of Medium:
Online Resource
ISSN:
1421-0185
,
1662-0879
DOI:
10.1024/1421-0185.63.3.201
Language:
English
Publisher:
Hogrefe Publishing Group
Publication Date:
2004
detail.hit.zdb_id:
3093293-2
detail.hit.zdb_id:
2090982-2
SSG:
2,1
SSG:
5,2
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