Closed-loop motor control involves comparing motor commands with sensory feedback and requires sensory input integration by the CNS, resulting in a slower response compared to the faster reflexive responses of open-loop control which bypass detailed CNS processing.
Closed-loop motor control takes longer to produce a movement than open-loop motor control because it involves comparing motor commands and sensory feedback. This process requires the integration of sensory inputs with central nervous system (CNS) activity before a response is executed. Closed-loop control systems are part of voluntary motor responses and can be affected by habit learning or procedural memory, where movements become automatic over time, though originally they require conscious decision-making.
On the other hand, open-loop motor control, like reflexes, occurs much faster because it bypasses the CNS or involves only minimal CNS interaction in the form of a monosynaptic reflex arc. Reflexes are rapid, unconscious motor responses where nerve impulses travel directly from the sensory neurons to the motor neurons without the need for conscious thought or higher-level processing.