Accession Number : AD0673886

Title :   INFLUENCE OF MEMORY FACTORS ON SENSORY DISCRIMINATION.

Descriptive Note : Final technical rept. 15 Oct 67-15 Apr 68,

Corporate Author : MICHIGAN UNIV ANN ARBOR SENSORY INTELLIGENCE LAB

Personal Author(s) : Main,Dana B.

Report Date : JUL 1968

Pagination or Media Count : 9

Abstract : The influence of memory for time and frequency on sensory discrimination was studied on four observers within the framework of the theory of signal detectability. Six experiments were conducted under a cueless condition, four continuous wave cue conditions and four pulsed carrier cue conditions. The voltage of the signal to be detected was kept constant. The observers operated near chance under the cueless condition. The efficiencies improved slightly with the frequency information provided by the continuous wave, but the curves were relatively flat as a function of the voltage of the cue. The efficiencies rose from less than .1 to about .3 as a function of the voltage of the pulsed carrier indicating the superiority of time cues at low 2E/No values. The empirical d' in each of the six experiments are being fitted to a geometrical model at each cue voltage. (Author)

Descriptors :   (*PERCEPTION, *MEMORY(PSYCHOLOGY)), DECISION MAKING, SIGNALS, DETECTION, NOISE, MATHEMATICAL ANALYSIS, PERFORMANCE(HUMAN)

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE