Effect of voluntary muscle contraction on the startle response to auditory stimuli.

@article{Aniss1998EffectOV,
  title={Effect of voluntary muscle contraction on the startle response to auditory stimuli.},
  author={A. M. Aniss and Perminder S. Sachdev and Kok Yoon Chee},
  journal={Electromyography and clinical neurophysiology},
  year={1998},
  volume={38 5},
  pages={285-93}
}
Startle reflex responses were studied in 15 normal human subjects using weak (88 dB) and strong (114 dB) auditory stimuli in the orbicularis oculi, masseter, sternocleidomastoid, trapezius, deltoid, biceps, forearm flexors and quadriceps muscles. With the subjects in the relaxed state, no consistent responses were seen with the weak stimuli, and with the strong stimuli responses were only present in orbicularis oculi muscles. When the above muscles were in a state of voluntary contraction, the… CONTINUE READING