An Experimental Investigation of the Visual Behavior of Young Heroin Addicts and Matched Controls.
HUMAN ENGINEERING LAB ABERDEEN PROVING GROUND MD
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The purpose of this experimentation was to determine if the eye movements of heroin addicts differed from non-addicted controls. The study employed an oculometer, which tracked and recorded eye movements without the subjects knowledge or any interference with his visual behavior, and a data processing system, which handled the large volume of data produced by tracking the eye at 60 frames a second. Analysis of the eye movement data revealed major differences between the rapid eye movements, fixation sequences and scan pattern of addicts and non-addicted control subjects. It appears that the significant differences between the eye movements of the addicts and the control subjects are due to 1 motivational factors associated with the importance of the stimulus material e.g., drug versus neutral items, 2 basic differences in the physiological and central nervous system processes that regulate eye movements, and 3 possible differences in reading skills and the ability to manipulate printed material. Extensions and application of the eye movement studies are discussed. Keywords Drug effects Drug addicts Physiological effects. KT
- Anatomy and Physiology