Measures Of Remote Manipulator Feedback: Absolute Judgments Of weight
Report Number: WADD TR 60-591 (II)
Author(s): Crawford, Billy M.
Corporate Author(s): Behavioral Sciences Laboratory; Aerospace Medical Laboratory
Laboratory: Behavioral Sciences Laboratory; Aerospace Medical Laboratory
Date of Publication: 1961-03
Pages: 15
Contract: Laboratory Research - No Contract
DoD Project: 7184
DoD Task: 71586
Identifier: AD0265435
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.
Provenance: IIT
Author(s): Crawford, Billy M.
Corporate Author(s): Behavioral Sciences Laboratory; Aerospace Medical Laboratory
Laboratory: Behavioral Sciences Laboratory; Aerospace Medical Laboratory
Date of Publication: 1961-03
Pages: 15
Contract: Laboratory Research - No Contract
DoD Project: 7184
DoD Task: 71586
Identifier: AD0265435
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.
Provenance: IIT