EXPERIMENTS IN HUMAN ORIENTATION AND DISORIENTATION

Authors
  1. Howard, I.P.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);York Univ, Toronto ONT (CAN) Dept of Psychology
Abstract
The aim of the experiments was to explore the ability of people to form a stable image of the visual world. When a visual scene moves, the eyes must follow the movement so as to prevent the image becoming smeared on the retina. The involuntary pursuit eye movements evoked by movements of the whole scene are known as optokinetic nystagmus, or OKN. When a particular moving object is deliberately pursued with the eyes we talk about voluntary pursuit. In addition, the eyes automatically compensate for movements of the head, even in the dark. This response is evoked by stimuli arising in the vestibular system and is known as the vestibulo-ocular response, or VOR. The following experiments investigate the nature of the stimuli that evoke these compensatory movements of the eyes and the conditions that determine the experience of stability of the visual world.
Report Number
DCIEM-CR-7595 — Contract Report (Final)
Date of publication
15 Mar 1987
Number of Pages
150
DSTKIM No
87-02076
CANDIS No
50893
Format(s):
Hardcopy;Originator's fiche received by DSIS

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