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  Risk-sensitivity in motor control

Braun, D. (2012). Risk-sensitivity in motor control. Talk presented at Bernstein Center Freiburg: Bernstein Seminar. Freiburg i.Br., Germany.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-A8F6-C Version Permalink: http://hdl.handle.net/21.11116/0000-0001-A8F7-B
Genre: Talk

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 Creators:
Braun, DA1, 2, Author              
Affiliations:
1Research Group Sensorimotor Learning and Decision-Making, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497809              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: Recent advances in theoretical neuroscience suggest that motor control can be considered as a continuous decision-making process in which uncertainty plays a key role. Decision-makers can be risk-sensitive with respect to this uncertainty in that they may not only consider the average payoff of an outcome, but also consider the variability of the payoffs. Although such risk-sensitivity is a well-established phenomenon in psychology and economics, it has been much less studied in motor control. In fact, leading theories of motor control, such as optimal feedback control, assume that motor behaviors can be explained as the optimization of a given expected payoff or cost. Here we discuss evidence that humans exhibit risk-sensitivity in their motor behaviors, thereby demonstrating sensitivity to the variability of “motor costs.” Furthermore, we discuss how risk-sensitivity can be incorporated into optimal feedback control models of motor control. We conclude that risk-sensitivity is an important concept in understanding individual motor behavior under uncertainty.

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 Dates: 2012-11-06
 Publication Status: Published in print
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Title: Bernstein Center Freiburg: Bernstein Seminar
Place of Event: Freiburg i.Br., Germany
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Invited: Yes

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