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Re: Sensitivity to increments and decrements

Dear Chris,

Moore and colleagues published several papers on this topic in the 1990s,
mostly in JASA.  See also a paper by Glasberg et al. (2001) in Hearing
Research and a paper by Gallun and Hafter (2006) in JASA.   Increment
detection is generally better than decrement detection, particularly for
short durations.


Walt Jesteadt
Director of Research
Boys Town National Research Hospital
Omaha, NE  68131

-----Original Message-----
From: AUDITORY - Research in Auditory Perception
[mailto:AUDITORY@xxxxxxxxxxxxxxx] On Behalf Of Christian Kaernbach
Sent: Saturday, November 10, 2007 2:43 AM
To: AUDITORY@xxxxxxxxxxxxxxx
Subject: Sensitivity to increments and decrements

Dear List,

Is there anything known about the existence of differences in the 
sensitivity to intensity increments versus to intensity decrements?

Laurent Demany pointed me to a paper by Sinnott et al. (1985) who found 
no such difference in humans, while they found an advantage for 
increments in monkeys:
    Sinnott, J. M., Petersen M. R., Hopp, S. L. (1985).
    Frequency and intensity discrimination in humans and monkeys.
    Journal of the Acoustical Society of America, 78, 1977-1985.
Is this finding (as to the symmetry of human increment / decrement 
sensitivity) unchallenged?

Best regards,

Prof. Dr. Christian Kaernbach
Allgemeine Psychologie
Institut für Psychologie
Christian-Albrechts-Universität zu Kiel
Olshausenstr. 62
D-24098 Kiel