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(Off the top of my head, so here goes) From a purely information processing perspective, with a brain 'normalisation' chaser, these are relatively low frequencies where phase-locking is a 'thing'. Purely in terms of accumulating information about the signals
(I'm guessing 'the brain' doesn't know or care about your task), the same number of spikes would take longer to accumulate for a lower frequency (fewer cycles, fewer spikes, therefore less 'information'). just a hunch but move into the non-phase locking region
above 4 kHz (for those who can still hear!) and see what happens.
From: AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx> on behalf of Lori Holt <lholt@xxxxxxxxxxxxxx>
Sent: 02 November 2022 07:00 To: AUDITORY@xxxxxxxxxxxxxxx <AUDITORY@xxxxxxxxxxxxxxx> Subject: [AUDITORY] Long/Low & Short/High? Dear auditory aficionados,
Fred Dick and I have been doing some work with a long-short tone duration identification
task (50ms vs 90ms) where tone frequency is chosen from one of x values in a truncated range (e.g., 800Hz, 920Hz, 1000Hz, 1080Hz, 1200Hz). (You might be familiar with this paradigm from Mondor & Bregman, 1994).
We have found a weak but quite reliable effect, where subjects tend to judge lower frequencies more often as 'long', and higher frequencies as 'short'. This was unexpected yet remarkably consistent across a lot of experiments. We have been unable to track down mention of this in the literature. We did dig up a few papers that purported to be on the general topic of frequency effects on duration judgments, but these ended up being about different things entirely... We wondered whether anyone might be familiar with literature we've missed- or maybe even have encountered something like this before yourself? Best wishes,
Lori & Fred
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loriholt
Professor
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Department of Psychology
Professor | Neuroscience Institute
Co-Director | Center for the Neural Basis of Cognition
Co-Director | Behavioral Brain (B2) Research Training Program (NIGMS)
Carnegie Mellon University
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