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Re: information transmission analyses

I highly recommend you read the classic book by Attneave in order to get to grips with information transfer measures generally:

Attneave F. Applications of information theory to psychology: a summary of basic concepts, methods, and results. New York: Holt, Rinehart, and Winston, 1959. 120 p. [University of Oregon, Eugene, OR]

In my experience %TRANS (=TRANS/INPUT) has proved to be the most useful measure but TRANS/TI can give you an idea about how important any particular feature is in overall performance. TRANS itself is probably less useful because the amount of information in each feature differs considerably.

How you do the analyses depends on what questions you are trying to answer. Analysing individual matrices and then doing standard statistical tests is one way to avoid the difficulties of doing statistical analyses on a small number of matrices (which require something like log-linear analyses). On the other hand, looking at group matrices can make it easier to spot trends.

Bon chance!

Yours - Stuart

Stuart Rosen, PhD
Professor of Speech and Hearing Science
Co-director of the Centre for Human Communication
Speech, Hearing and Phonetic Sciences
Division of Psychology & Language Sciences, UCL
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London WC1N 1PF

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