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Risk-sensitivity in sensorimotor control
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نویسنده
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braun d.a. ,nagengast a.j. ,wolpert d.m.
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منبع
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frontiers in human neuroscience - 2011 - شماره : JANUARY - صفحه:1 -10
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چکیده
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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 review 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. © 2011 braun,nagengast and wolpert.
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کلیدواژه
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Risk; Risk-sensitivity; Sensorimotor control; Uncertainty
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آدرس
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computational and biological learning laboratory,department of engineering,cambridge university,trumpington street,cambridge cb2 1pz,united kingdom,computational learning and motor control laboratory,department of computer science,university of southern california,los angeles,ca, United States, computational and biological learning laboratory,department of engineering,cambridge university,trumpington street,cambridge cb2 1pz,united kingdom,department of experimental psychology,university of cambridge,cambridge, United Kingdom, computational and biological learning laboratory,department of engineering,cambridge university,trumpington street,cambridge cb2 1pz, United Kingdom
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Authors
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