Deficits in startle-evoked arm movements increase with impairment following stroke

Conclusions: We conclude that the task-inappropriate flexor activity likely results from cortical or corticospinal damage leading to an unsuppressed or hypermetric classic startle reflex that interrupts startReact elbow extension.Significance: Given startReact’s functional role in compensation during environmental disturbances, our results may have important implications for our understanding deficits in stroke survivor’s response to unexpected environmental disturbances.
Source: Clinical Neurophysiology - Category: Neuroscience Authors: Tags: Movement, Motor Control and Movement Disorders Source Type: research