Sensory feedback and the impaired motor system

Motor-sensory Feedback Formulations: Are We Asking the Right Questions?*

Gyr and his colleagues (1979) would have us confront anew the evidence for assigning a critical role for motor activity in visual perception. While their discussion of "sensorimotor processes" suggests a tightly coupled relationship between perception and action systems, we believe that the authors present a potentially misleading picture of the relationship between efference and afference. The...

The Head-Neck Sensory Motor System

Sensory feedback synchronizes motor and sensory neuronal networks in the neonatal rat spinal cord

Early stages of sensorimotor system development in mammals are characterized by the occurrence of spontaneous movements. Whether and how these movements support correlated activity in developing sensorimotor spinal cord circuits remains unknown. Here we show highly correlated activity in sensory and motor zones in the spinal cord of neonatal rats in vivo. Both during twitches and complex moveme...

Motor Cortex Feedback Influences Sensory Processing by Modulating Network State

Long-range corticocortical communication may have important roles in context-dependent sensory processing, yet we know very little about how these pathways influence their target regions. We studied the influence of primary motor cortex activity on primary somatosensory cortex in the mouse whisker system. We show that primary motor and somatosensory cortices undergo coherent, context-dependent ...

Frequency control of motor patterning by negative sensory feedback.

The sensory system plays a key role in the generation of behavior by providing the nervous system with information about the environment and feedback about body movements such that motor output can continuously be adapted to changing circumstances. Although the effects of sensory organs on nervous system function have been demonstrated in many systems, the impact of sensory activity has rarely ...