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Re: Number of concurrent streams.

This is precisely the question treated extensively in Cowan's target
article in BBS, which reviews evidence from multiple modalities including
audition and addresses questions such as the relationship between
attention and short-term memory. The title implies an answer already:

Cowan, N. (2001), "The magic number 4 in short-term memory: a
of mental storage capacity," Behavioral and Brain Sciences, 24, 87-185.

Another point is that the capacity (the maximum number) probably varies with
the material. One would think that the capacity is smaller in listening to
multiple speech utterances than multiple pure tones or synthetic vowels.



Prof. DeLiang Wang
Department of Computer Science and Engineering
The Ohio State University
2015 Neil Ave.
Columbus, OH 43210-1277, U.S.A.

Email: dwang [at] cis [dot] ohio-state [dot] edu
Phone: 614-292-6827 (OFFICE); 614-292-7402 (LAB)
Fax: 614-292-2911
URL: http://www.cse.ohio-state.edu/~dwang