Abstract:
:Imperceptible vibratory Gaussian noise stimulation to the periphery is frequently being applied to humans to enhance motor performance. It is commonly theorized that this stimulation creates a Stochastic Resonance-like effect across both sensory and motor systems, but this idea has no empirical support. In contrast, there is substantial work showing that tendon vibration can be both excitatory and inhibitory on the lower motor neuron output. In this work, we demonstrate that delivery of imperceptible vibratory Gaussian noise stimulation to the wrist flexor tendons results in a 27% increase in excitability of the lower motor neuron pool in the median nerve, as evidenced by changes in the Hoffmann reflex. We argue that the well-documented tonic vibration reflex is a sufficient mechanistic explanation for the behavioral changes observed during the introduction of vibratory noise stimulation.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Tenan MS,Tweedell AJ,Haynes CA,Passaro ADdoi
10.1016/j.neulet.2019.05.018subject
Has Abstractpub_date
2019-07-27 00:00:00pages
123-127eissn
0304-3940issn
1872-7972pii
S0304-3940(19)30336-2journal_volume
706pub_type
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