Coactivation-driven upregulation of feedback under urgency

Investigate whether muscle coactivation is leveraged by the nervous system to upregulate rapid visual and proprioceptive feedback responses when task goals impose temporal or spatial urgency during reaching or posture control.

Background

Coactivation frequently arises under challenging task constraints and has been linked to increased responsiveness of sensory feedback in both mechanical and visual perturbation contexts.

Aside from one paper, it remains largely unexplored whether coactivation is a specific strategy to upregulate feedback gains under increased temporal or spatial demands.