Accession Number : AD0835530

Title :   A FURTHER STUDY OF THE TEMPORAL INTEGRATION OF LOUDNESS,

Corporate Author : STOCKHOLM UNIV (SWEDEN) PSYCHOLOGICAL LABS

Personal Author(s) : Berglund, Birgitta ; Berglund, Ulf

Report Date : MAY 1967

Pagination or Media Count : 11

Abstract : The perceived loudness of a 1000 c/s tone under different conditions of intensity (51-100 db) and duration (30-2000 msec) of stimulation was investigated in this experiment. A two-step scaling method, involving cross-modality matching and numerical scaling of the matching continuum, was used for measuring loudness. It was found that loudness could be described as a logarithmic function of stimulus duration until a maximum loudness level was reached after 600-1000 msec. This maximum loudness level was found to occur at shorter durations for lower intensities. In addition, an alternative exponential function was discussed. (Author)

Descriptors :   (*PSYCHOPHYSICS, SOUND), (*SOUND, INTENSITY), PERCEPTION, NUMERICAL INTEGRATION, STIMULATION(PHYSIOLOGY), THRESHOLDS(PHYSIOLOGY), MODULATION, PERCEPTION, CURVE FITTING.

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE