Facial nerve activity disrupts psychomotor rhythms in the forehead microvasculature

Abstract Forehead blood flow was monitored in seven participants with a unilateral facial nerve lesion during relaxation, respiratory biofeedback and a sad documentary. Vascular waves at 0.1 Hz strengthened during respiratory biofeedback, in tune with breathing cycles that also averaged 0.1 Hz. In a...

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Bibliographic Details
Published in:Autonomic neuroscience 2011-10, Vol.164 (1), p.105-108
Main Authors: Drummond, Peter D, O'Brien, Geraldine
Format: Article
Language:English
Subjects:
Advanced Basic Science
Aged
Autonomic Nervous System Diseases - complications
Autonomic Nervous System Diseases - physiopathology
Biological and medical sciences
Blood flow variability
Crying
Facial nerve
Facial Nerve Diseases - complications
Facial Nerve Diseases - physiopathology
Female
Forehead - blood supply
Forehead - innervation
Forehead - physiopathology
Forehead blood flow
Fundamental and applied biological sciences. Psychology
Humans
Male
Medical Education
Microcirculation - physiology
Middle Aged
Ophthalmic Artery - innervation
Ophthalmic Artery - physiopathology
Parasympathetic
Peripheral nervous system. Autonomic nervous system. Neuromuscular transmission. Ganglionic transmission. Electric organ
Psychomotor Disorders - etiology
Psychomotor Disorders - physiopathology
Relaxation
Vertebrates: nervous system and sense organs
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Summary:Abstract Forehead blood flow was monitored in seven participants with a unilateral facial nerve lesion during relaxation, respiratory biofeedback and a sad documentary. Vascular waves at 0.1 Hz strengthened during respiratory biofeedback, in tune with breathing cycles that also averaged 0.1 Hz. In addition, a psychomotor rhythm at 0.15 Hz was more prominent in vascular waveforms on the denervated than intact side of the forehead, both before and during relaxation and the sad documentary. These findings suggest that parasympathetic activity in the facial nerve interferes with the psychomotor rhythm in the forehead microvasculature.
ISSN:1566-0702
1872-7484
DOI:10.1016/j.autneu.2011.06.004