A simple way of setting up dichoptic flicker with variable phase relationship is described. Sine wave flashes result, and for these, as for square waves, Sherrington's hypothesis of independent testing for intermittence of inputs to each eye is approximately borne out. Observations of the attributes of these two modes of stimulation at sub-fusion frequencies suggest that no such independence holds for computation of luminous flux over time.
Get full access to this article
View all access options for this article.
References
1.
BakerC. H.BottF. A. (1951). Studies on visual flicker and fusion. II. Effects of timing of visual stimuli on binocular fusion and flicker. Can. J. Psychol.5, 9–17.
2.
FoleyP. J.StagerP. (1965). The phase difference function in binocular flicker. Can. J. Psychol.19, 47–55.
3.
HochbergJ. (1964). A theory of the binocular cyclopean field on the possibility of simulated stereopsis. Percept. Mot. Skills19, 685.
4.
IvesH. E. (1922). Critical frequency relations in scotopic vision. J. opt. Soc. Am.6, 254–65.
5.
KahnemanD.NormanJ. (1964). The time-intensity relation in visual perception as a function of observer's task. J. exp. Psychol.68, 215–20.
6.
PerrinF. M. (1954). A study in binocular flicker. J. opt. Soc. Am.44, 60–9.
7.
SherringtonC. S. (1904). On binocular flicker and the condition of activity of “corresponding” retinal points. Br. J. Psychol.1, 26–59.
8.
ThomasG. J. (1955). A comparison of uniocular and binocular critical flicker frequencies: simultaneous and alternate flashes. Am. J. Psychol.68, 37–53.
