Introduction
Reflex and voluntary movements are sensorimotor transformations.
Feedforward vs. feedback control.
Reflex control differs from voluntary control
Spatial organization of reflexes reflects hard-wired connections vs.
behavioral demands and context: decisions. Voluntary movements
are organized to be appropriate to address behavioral goal: kinematic
vs. dynamic transformations - internal models.
Reflex latency & duration reflect mainly fixed neuromuscular
constraints: conduction, transmission, contraction. These, also
influence timing of voluntary movement, but information processing
and accuracy constraints are the critical reaction time and movement
duration.
Neural organization of voluntary movements is highly dependent on
learning and plasticity. Adaptability is critical over long term.