Accession Number : AD0778928

Title :   The Effects of Smoking on Peripheral Movement Detection.

Descriptive Note : Final rept.,

Corporate Author : SOUTH DAKOTA UNIV VERMILLION*

Personal Author(s) : Scoughton,Craig R. ; Heimstra,Norman W.

Report Date : DEC 1973

Pagination or Media Count : 50

Abstract : Twenty-five male subjects, 15 smokers and 10 nonsmokers, who were screened for visual and physical defects, were tested on an apparatus designed to determine their ability to detect movement in the visual periphery. Analysis of the data revealed no significant differences between smoking and smoking deprived subjects for either illumination condition in regard to the visual field measures. A comparison of smoking and nonsmoking subjects however, showed a significantly larger field for nonsmokers under the low illumination condition condition. For the movement detection task, smoking deprived subjects were significantly better than smoking subjects at detecting and responding to movement in the periphery, particularly when higher speeds of target movement were involved. Analysis of the data for the velocity estimation task revealed that subjects in the smoking deprived condition performed significantly better than subjects in the smoking condition under the low illumination condition. Based on the results of this investigation, it appears that smoking does have an effect on several critical peripheral functions. (Modified author abstract)

Descriptors :   *Visual perception, *Moving targets, Nicotinic acid, Psychophysiology, Illumination, Vision, Senses(Physiology), Humans

Subject Categories : Psychology
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE