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SOME INVESTIGATIONS OF PERCEPTION OF MOVEMENT AND RELATED DEPTH PHENOMENA
Author(s) -
ZAJAC J. L.
Publication year - 1962
Publication title -
british journal of psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.536
H-Index - 92
eISSN - 2044-8295
pISSN - 0007-1269
DOI - 10.1111/j.2044-8295.1962.tb00818.x
Subject(s) - monocular , movement (music) , eye movement , perception , depth perception , rotation (mathematics) , observer (physics) , psychology , optics , binocular vision , amplitude , computer vision , communication , physics , computer science , acoustics , quantum mechanics , neuroscience
Investigations of perception of real movement have been carried out using a special apparatus designed by the author. Movement of a pendular character was produced by placing a prismatic ‘Chance Crookes’ glass in front of one eye of an observer looking through it at a vertical rod, and rotating the glass. Amplitude and direction of the movement were a function of the distance of both the glass and the rod from the eye, of the thickness and prismatic angle of the glass, and of the direction and angle of turn of the glass in relation to the eye. When angle of turn or speed of rotation, or both, are gradually increased, other factors remaining constant, observations concerning movement, in both monocular and binocular vision, varied following fixed sequences for monocular and binocular vision. The experiments consisted in noting the kind of observation and recording the related angle of turn and number of rotations of the prismatic glass; from these data mean speeds of the movement of the image of the rod were calculated. Observations concerning depth phenomena accompanying various kinds of perceived movement were also made.