Detection of rate of change of auditory frequency.

1 January 1968

journal article
Published by American Psychological Association (APA) in Journal of Experimental Psychology

Vol. 77 (4) , 535-541
https://doi.org/10.1037/h0026051

Abstract

DETERMINED THRESHOLDS FOR THE DETECTION OF THE DIRECTION AND THE RATE OF FREQUENCY CHANGE FOR PURE TONES FOR 22 MUSIC MAJORS. WITH CONSTANT INITIAL FREQUENCIES OF 125-1000 HZ. FOR DURATIONS OF .5-4 SEC., THE THRESHOLD FREQUENCY DIFFERENCE FOR DETECTION OF DIRECTION OF FREQUENCY CHANGE CLOSELY APPROACHED THAT OBTAINED IN A CONVENTIONAL FREQUENCY DISCRIMINATION TEST. THE THRESHOLD RATE OF FREQUENCY CHANGE WAS INVERSELY PROPORTIONAL TO THE DURATION OF THE FREQUENCY CHANGE. TESTS WITH A VARIABLE STARTING FREQUENCY SUGGEST THAT LISTENERS CAN RESPOND DIRECTLY TO FREQUENCY CHANGES OVER THE DURATION OF THE SWEPT FREQUENCY TONE. TESTS WITH A RELATIVELY "PURE" MEASURE OF RATE OF FREQUENCY CHANGE SUGGEST THAT, AT EXTREMELY SHORT TRANSITION TIMES, SENSITIVITY TO CHANGE IN THE RATE OF TRANSITION IS NEARLY DIRECTLY PROPORTIONAL TO THE FREQUENCY RANGE SUBTENDED; AT LONG TRANSITION TIMES, IT IS NEARLY INDEPENDENT. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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