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During the academic year 1984/85 a study group on "Per- ception and
Action" was established at the Center for Inter- disciplinary
Research of the University of Bielefeld. Among the various
activities of this group was a series of symposia. This volume
covers the proceedings of one of the sym- posia, held in October
1984 and entitled "Generation and Modulation of Action Patterns".
Bringing together scientists from diverse disciplines in gen- eral
is challenging, but also hazardous. Aware of the notori- ous
communication problems, it was tried to keep the number of
representatives of at least the major areas of Neurobiology and
Psychology about equal and to elicit pre- sentations that combine
experimental findings with theoret- ical statements on major issues
in motor control. Despite the different' viewpoints, concepts,
research strategies, and methods as they are reflected in the
present volume, there was the general impression among the
participants that such a multidisciplinary effort was profitable
and one step on the way to the realization of common goals and com-
mon conceptual grounds.
In recent years there has been steadily increasing interest in
motor behavior and a growing awareness that a person not only has
to know what to do in a particular situation, but also how to do
it. The question of how actions are performed is of central concern
in the area of motor control. This volume provides an
advanced-level treatment of some of the main issues. Experiments
concerned with basic processes of motor control typ ically examine
very simple movements. At first glance these tasks appear to be far
removed from real-world tasks, but it should be kept in mind that
they are not studied for their own sake. One of the main reasons
for using them is the well-recognized, but sometimes questioned,
scientific principle that basic laws may be discovered more easily
in simple situations than iIi complex situations. Another reason is
that the simple tasks studied constitute building blocks of more
complex tasks. For example, some complex skills can be consid ered
as consisting of sequences of aimed movements, although, as no one
would doubt, knowing everything about these individual movements
does not mean knowing everything about, for example, typing. The
first two chapters of the present volume focus on behavioral and
physiological studies of programming and preparation of move ments.
In the first chapter D. Rosenbaum introduces the concept of a motor
program that is set up in advance of the overt movement."
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