Re: your mail (Al Bregman )

Subject: Re: your mail
From:    Al Bregman  <bregman(at)HEBB.PSYCH.MCGILL.CA>
Date:    Mon, 12 Oct 1998 19:20:30 -0400

Dear Chuck, Your first sentence tells the story: "if you want to look at it in a way that is mechanism independent". It seems to me that you'd only want to do this if you didn't care about mechanisms. Presumably what you might care about is capacities, hoping to discover some invariant properties of our capacities without regard to mechanisms [e.g., "magic number seven", "power law" etc.]. Perhaps we're again we're again encountering a difference between the psychophysical culture and the perceptual culture. Best, Al P.S. The best way I know of to gather a comparable measure for matrices of different sizes is the "transmitted information" metric of information theory. ---------------------------------------------------------------- On Mon, 12 Oct 1998, Charles S. Watson wrote: > Al: > > Well, here is another way to look at it, that is mechanism independent. > Discrimination and identification can be (and generally are) tested by the > same operations. The result of the testing, assuming it is properly done > and the response set is limited to the number of stimuli the experimenter > intended to use (with noise, of course, there might be lots more) is an n > x n matrix. ... Email to AUDITORY should now be sent to AUDITORY(at) LISTSERV commands should be sent to listserv(at) Information is available on the WEB at

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Electrical Engineering Dept., Columbia University