NeuroBiography: A database of cognitive neuroscientists' lives & work
User: Guest
Quicksearch:
Wood DK, Gu C, Corneil BD, Gribble PL, Goodale MA (2015) Transient visual responses reset the phase of low-frequency oscillations in the skeletomotor periphery. European Journal of Neuroscience, 42(3):1919-1932    
Actions:
Preview
We recorded chest muscle activity while subjects reached toward a peripheral target. Stimulus-locked muscle responses appeared ~100 ms after stimulus onset, regardless of voluntary reaction time. These visual transients reset the phase of intrinsic 10–14 Hz oscillations in muscle activity
Abstract
We recorded muscle activity from an upper limb muscle while human subjects reached towards peripheral targets. We tested the hypothesis that the transient visual response sweeps not only through the central nervous system, but also through the peripheral nervous system. Like the transient visual response in the central nervous system, stimulus-locked muscle responses (< 100 ms) were sensitive to stimulus contrast, and were temporally and spatially dissociable from voluntary orienting activity. Also, the arrival of visual responses reduced the variability of muscle activity by resetting the phase of ongoing low-frequency oscillations. This latter finding critically extends the emerging evidence that the feedforward visual sweep reduces neural variability via phase resetting. We conclude that, when sensory information is relevant to a particular effector, detailed information about the sensorimotor transformation, even from the earliest stages, is found in the peripheral nervous system