Neural variability in premotor cortex provides a signature of motor preparation.

@article{Churchland2006NeuralVI,
  title={Neural variability in premotor cortex provides a signature of motor preparation.},
  author={Mark M. Churchland and Byron M. Yu and Stephen I. Ryu and Gopal Santhanam and Krishna V. Shenoy},
  journal={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={2006},
  volume={26 14},
  pages={3697-712}
}
We present experiments and analyses designed to test the idea that firing rates in premotor cortex become optimized during motor preparation, approaching their ideal values over time. We measured the across-trial variability of neural responses in dorsal premotor cortex of three monkeys performing a delayed-reach task. Such variability was initially high, but declined after target onset, and was maintained at a rough plateau during the delay. An additional decline was observed after the go cue… CONTINUE READING
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Electroencephalogr Clin Neurophysiol 97, 341 (Dec, 1995)

J. L. Taylor, D. S. Wagener, J. G. Colebatch
Figure 9. Effect of microstimulation delivered in the 100 ms before the go cue. RT is plotted versus the delayperiod duration for unstimulated (black) and stimulated (red) trials. Error bars show SEM. All main effects and interactions were statistically significant (ANOVA, p<0.05). Data are collaps • 2005
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