Symbolic cues enhance express visuomotor responses in human arm muscles at the motor planning rather than the visuospatial processing stage
Samuele Contemori, Gerald E. Loeb, Brian D. Corneil, Guy Wallis, Timothy J. Carroll
Abstract
Express arm muscle responses to suddenly appearing visual targets for reaching rapid have been attributed to the tecto-reticulo-spinal pathway in humans. We demonstrate that symbolic cues before target presentation can modulate such express arm muscle responses compatibly with the biomechanics of the cued reaching direction and the cue validity. This implies cortically mediated modulation of one or more sensorimotor transformation nodes of the subcortical express pathway.
Topics & Concepts
Cued speechPsychologyNeuroscienceSensory cueSensory systemFacilitationHorizontal planeMotor systemCommunicationCognitive psychologyGeodesyGeographyMotor Control and AdaptationAction Observation and SynchronizationTactile and Sensory Interactions