Reacting With or Without Detecting

in Motor Control
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We begin our response by clarifying the concept of detection, and explaining why this is needed for initiating, but not for adjusting a movement. We present a simulation to illustrate this difference. Several commentators referred to studies with results that might seem in conflict with our proposal that movement adjustments have short latencies because there is no need to detect anything. In the last part of our response, we discuss how we interpret these studies as being in line with our proposal.

Smeets and Brenner are with the Research Institute MOVE, Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands. Oostwoud Wijdenes is with the Donders Institute for Brain, Cognition and Behaviour, Radboud Universiteit Nijmegen, Nijmegen, Netherlands.

Address author correspondence to Jeroen B.J. Smeets at