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Evidence for the latency‐time explanation of the Pulfrich phenomenon
Author(s) -
KOLEHMAINEN KYÖSTI,
KESKINEN E.
Publication year - 1974
Publication title -
scandinavian journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 72
eISSN - 1467-9450
pISSN - 0036-5564
DOI - 10.1111/j.1467-9450.1974.tb00595.x
Subject(s) - psychology , phenomenon , pendulum , observer (physics) , physics , astronomy , quantum mechanics
.— The explanation of the F'ulfrich stereophe‐nomenon has been based on the laws of stereoscopic depth and angular disparity, together with the assumption that the timing of the neural discharges from the retina of the Eltered eye is delayed. If this hypothesis is plausible the stereoscopic effect is at least reduced when the pendulum swings vertically in relation to the condition in which the path of the pendulum crosses the observer's line of sight horizontally, because the vertical disparity is ineffective as a depth cue. The results of the present experiment show that the Pulfrich phenomenon is reduced when the pendulum swings vertically.