Sensori-motor decision-making and optimality in goal-directed movements
under risk
Dr. Julia Trommershäuser
This project is aimed at gaining insight into the questions, in what
sense movement strategies are optimized to serve the demands of a
particular task, whether the integration of visual and non-visual
information during the planning and execution of goal-directed movements
follows principles of optimality, and how eye and hand movements are
coordinated during the execution of goal-directed hand movements under
risk.
We study human movement planning in environments where we provide
explicit feedback on the outcome of actions and compare human
performance to a model of optimal performance based on statistical
decision theory. The model will allow comparison of optimal and actual
sensori-motor behavior in experiments in visuo-haptic environments in
which (a) different actions lead to different (monetary) consequences
for the movement planner and (b) sources of available visual and
proprioceptive information vary between experimental conditions. In
addition, eye and hand movements will be monitored simultaneously during
these tasks to test for optimality and task-dependency of eye-hand
coordination and for the possibility of a decoupling of eye and hand
movements.
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