Persistent hand motor commands in the amputees' brain

Persistent hand motor commands in the amputees' brain.

The loss of a limb leads to sensorimotor modifications that are frequently accompanied by the vivid experience that the missing limb is still present, and that it can be moved at will. Furthermore, amputees can clearly distinguish between phantom movements of the fingers and of more proximal joints, like movements of the elbow. This phenomenon raises the question of whether these specific phant...

Perceptual Schema Motor System Motor Commands

The Effect of Motor Training in Mirror Therapy on Gross Motor Skills of the Affected Hand in Children With Hemiplegia

Objectives: Spastic hemiplegia cerebral palsy is the second type of cerebral palsy among pre-mature infants, which affects the mobility of one side of the body by impairing the brain’s ability to send nerve impulse to the muscles. The present research aims to examine the effect of motor training in mirror therapy on the gross motor skills in Spastic Hemiplegia Cerebral Palsy (SHCP) childr...

Optical Imaging of the Motor Cortex in the Brain in Order to Determine the Direction of the Hand Movements Using Functional Near-Infrared Spectroscopy (fNIRS)

Introduction: In recent years, optical imaging has attracted a lot of attention from scholars as a non- aggressive, efficient method for evaluating the activities of the motor cortex in the brain. Functional near-infrared spectroscopy (fNIRS (is a tool showing the hemodynamic changes in a cortical area of the brain according to optical principles. The present study has been de...

Visuo-motor control: Giving the brain a hand

Sensory information is acquired in spatial coordinate systems linked to sense organs, yet movement must be executed in coordinate systems linked to motor effector organs. Neurophysiological experiments are yielding new insights into how the brain transforms coordinate systems to facilitate movement.