Blink reflex to supraorbital nerve stimulation in the cat

@article{LeDoux1997BlinkRT,
  title={Blink reflex to supraorbital nerve stimulation in the cat},
  author={Mark S. LeDoux and Joan F. Lorden and Angela D. Weir and Jason M. Smith},
  journal={Experimental Brain Research},
  year={1997},
  volume={116},
  pages={104-112}
}
Abstract Neurophysiological studies of the blink reflex to supraorbital nerve stimulation were conducted in eight alert, adult male cats. The cat, like other mammals, shows both short-latency (R1) and long-latency (R2) orbicularis oculi electromyographic (OOemg) components. Measures of OOemg latency, duration, integrated area, and maximum amplitude (MA) were obtained at a stimulus magnitude of 1.5×R2 threshold. The mean (±SE) minimal latencies for R1 and R2 were 8.26±0.85 and 22.97±1.53 ms… 

A neurophysiological approach to brainstem reflexes. Blink reflex

  • Á. Esteban
  • Biology, Medicine
    Neurophysiologie Clinique/Clinical Neurophysiology
  • 1999

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The potential usefulness of the electrically elicited blink reflex test in the diagnosis of peripheral facial and trigeminal dysfunction in dogs was demonstrated and the muscle-evoked potentials evoked by stimulation of the facial nerve were demonstrated.

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A trigemino‐oculomotor pathway that inhibits levator palpebrae motoneurons in response to blink‐producing periorbital stimuli is characterized.

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TLDR
Results revealed that blink-evoking stimuli acted as a “presynaptic input” and blink circuit activity acted as an “postsynaptic spike”, which may create the maladaptive reorganization of trigeminal inputs in diseases such as hemifacial spasm.

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TLDR
The findings indicate that the assignment of the R1 and R2 components of the blink reflex to different parts of the trigeminal sensory complex cannot be exclusively based on subdivision connectional relationships with facial motoneurons.

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TLDR
The presence of a single major site of eyelid primary afferent terminals suggests that sensory input for both eyelid proprioception and blink-reflex activation passes through this segment of the spinal trigeminal nucleus.

Blink-related sensorimotor anatomy in the rat

TLDR
The comprehensive description of blink-related sensorimotor anatomy in rats will provide a foundation for future physiological studies of blinking and help to understand the innervation of muscles involved in closing and opening the eyes.

Animal Models for Investigating Benign Essential Blepharospasm

  • C. Evinger
  • Psychology, Medicine
    Current neuropharmacology
  • 2013
TLDR
One animal model attempts to mimic the predisposing condition and environmental trigger that give rise to BEB and indicates that abnormal interactions among trigeminal blink circuits, basal ganglia, and the cerebellum are the neural basis for BEB.

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