Feedforward and feedback learning in human sensorimotor control

18. November 2019
X E0-228

The human sensorimotor control system has exceptional abilities to perform skillful action despite ever changing conditions.
I will discuss how this adaptability can result through intrinsic mechanisms in two different ways: sensory feedback driving feedforward adaptation; and feedforward adaptation in turn adapting the feedback responses and tuning them to the environment.
In the first part of my talk I will examine how prior sensorimotor cues can be used to learn independent motor memories.
These results suggest that motor memories are encoded not simply as a mapping from current state to motor command but are encoded in terms of the recent history of sensorimotor states.
However, learning can also be used to adjust intrinsic feedback control.
The second half of my talk will focus on a few recent studies examining feedback responses; demonstrating both how they are modulated for control and using them to probe the underlying mechanisms of visually guided reaching.