Connectionism & Motion

[Mike R. W. Dawson]

The following paper has recently appeared in Psychological Review, and
describes how a variant of Anderson's "brainstate-in-a-box" algorithm can
be used to solve a particular information processing problem faced
when apparent motion is perceived.  If you're interested in a reprint,
please contact me at the address below.

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Dawson, M.R.W. (1991).  The how and why of what went where in apparent
	motion: Modeling solutions to the motion correspondence problem.
	Psychological Review, 98(4), 569-603.

A model that is capable of maintaining the identities of individuated
elements as they move is described.  It solves a particular problem of
underdetermination, the motion correspondence problem, by simultaneously
applying three constraints:  the nearest neighbour principle, the
relative velocity principle, and the element integrity principle.  The model
generates the same correspondence solutions as does the human visual system
for a variety of displays, and many of its properties are consistent with
what is known about the physiological mechanisms underlying human motion
perception.  The model can also be viewed as a proposal of how the identities
of attentional tags are maintained by visual cognition, and thus it can be
differentiated from a system that serves merely to detect movement.

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-- 
Michael R. W. Dawson                       email: mike at psych.ualberta.ca
Biological Computation Project
Department of Psychology
University of Alberta
Edmonton, Alberta                       Tel:  +1 403 492 5175
T6G 2E9, Canada                         Fax:  +1 403 492 1768