Sensorimotor Transformation: From Visual Responses to Motor Commands

Sensorimotor Transformation: From Visual Responses to Motor Commands

A recent study reveals how vision-based estimates of self-motion are passed on to premotor descending neurons which connect to various motor centres in the fly nervous system.

Temporal and spatial characteristics of vibrissa responses to motor commands.

A mechanistic description of the generation of whisker movements is essential for understanding the control of whisking and vibrissal active touch. We explore how facial-motoneuron spikes are translated, via an intrinsic muscle, to whisker movements. This is achieved by constructing, simulating, and analyzing a computational, biomechanical model of the motor plant, and by measuring spiking to m...

From Sensory Space to Motor Commands: Lessons from Saccades

Our distributed model of the saccadic system faithfully reproduces saccadic waveforms and the patterns of neuronal activity observed in several brain areas. However, our model is not based on principles found in classical theories of motor control. In this paper we attempt to extract from our model some general principles about neural motor controllers. We conclude that intrinsic brain signals ...

Motor commands contribute to human position sense.

The role of afferent inflow and efferent outflow (or command) signals in judgements of limb position has been debated for over a century. One way to assess this is to check for changes during complete paralysis, with the current view being that perceived movements or position changes do not usually accompany attempts to contract paralysed muscles. To re-examine this, we asked six naïve subjects...

Perceptual Schema Motor System Motor Commands