Accession Number : AD0265435

Title :   MEASURES OF REMOTE MANIPULATOR FEEDBACK: ABSOLUTE JUDGMENTS OF WEIGHT

Corporate Author : AEROSPACE MEDICAL RESEARCH LABS WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : CRAWFORD,BILLY M.

Report Date : MAR 1961

Pagination or Media Count : 1

Abstract : Man's ability to estimate weights was determined for two lifting conditions: direct manual lifting and remote lifting by means of an Argonne National Laboratory Model 8 Master-Slave Manipulator. The effect of interpolated weight-lifting experience upon absolute judgments of weight was also examined. Results show that: (a) means of estimates made by subjects who lift weights remotely are greater than means of estimates made by subjects who lift the same weights directly; (b) subjects tend to underestimate weights lifted directly; (c) estimates for the remote-lifting condition, even though more accurate on the average, are more variable; and (d) the tendency for subjects to underestimate weights which follow heavier weights and overestimate those which follow lighter weights is more pronounced for direct lifting than for remote lifting. (Author)

Descriptors :   *PERCEPTION, MEASUREMENT, STATISTICAL ANALYSIS, TEST METHODS

Distribution Statement : APPROVED FOR PUBLIC RELEASE