Influence of an acoustic preparatory signal on postural reflexes of the distal leg muscles in humans.

@article{Ackermann1991InfluenceOA,
  title={Influence of an acoustic preparatory signal on postural reflexes of the distal leg muscles in humans.},
  author={Hermann Ackermann and Johannes Dichgans and B. Guschlbauer},
  journal={Neuroscience letters},
  year={1991},
  volume={127 2},
  pages={242-6}
}
In standing subjects the sudden displacement of a platform toe-up evokes a stabilizing postural response of the anterior tibial muscle (long-latency reflex). A preparatory signal (acoustic warning stimulus) preceding the postural perturbation by 1 s results in a significant decrease in latency of this long-latency response. There is no parallel modulation of the afferent cortical input in terms of evoked cerebral potentials following platform tilts toe-up nor of efferent cortico-spinal… CONTINUE READING

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