Abstract
The current state of mathematical psychology is characterized in terms of five paired contrasts: behavioral vs information-processing; linearity vs non-linearity; static vs dynamic; mathematical vs computational; and deterministic vs probabilistic. Each contrast is evaluated in terms of three basic facts of psychology: complexity, irreversibility of experience, and individual differences; and also in terms of three contemporary developments: computational power, brain imaging and recent mathematical developments. From these I draw some (low-confidence) conclusions about where I think the field is headed, and why.
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