Accession Number : AD0639284

Title :   POSITIONING REACTIONS OF UNIFORM LENGTH EXECUTED AT VARIOUS DISTANCES FROM THE BODY.

Corporate Author : IOWA STATE UNIV IOWA CITY

Personal Author(s) : Brown,Judson S. ; Knauft,E. B.

Report Date : JUL 1948

Pagination or Media Count : 9

Abstract : In general, the results indicate that the accuracy with which a movement can be terminated as a desired position is not significantly affected by the distance from the body at which it is executed when length of movement remains constant. This is apparently the case for both inward and outward movements. Outward movements appear rather consistently to go beyond the intended mark, whereas inward movements do not. There is no statistically significant difference between the two directions, however, with respect to their absolute accuracy. Although a normal degree of confidence may be placed in the data for outward movements, those obtained for inward movements must be regarded as somewhat tentative, since the initial performance of the outward movements might have affected the subsequent performance of the inward movements. Indirect evidence is presented, however, which supports the view that transfer from the first to the second session was, in all probability, negligible. (Author)

Descriptors :   (*POSITIONING REACTIONS, PERFORMANCE(HUMAN)), OPERATORS(PERSONNEL)

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE