Electrophysiological study of superficial abdominal reflexes in normal men
| Autor: | Senri Hirakawa, Kazuo Satomi, Toshio Horai |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Adult
Male business.industry General Neuroscience Reflex arc Stimulation Anatomy Middle Aged Scratching Electric Stimulation Electrophysiology Abdominal wall medicine.anatomical_structure Reference Values Anesthesia Reflex medicine Humans Neurology (clinical) Corneal reflex Habituation Reflex Abdominal business |
| Zdroj: | Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section. 89:113-119 |
| ISSN: | 0168-5597 |
| DOI: | 10.1016/0168-5597(93)90093-5 |
| Popis: | We studied the superficial abdominal reflexes of 83 normal men, using as stimuli a train of electrical pulses or a needle scratch. Electrical stimulation delivered to the midline of the abdominal wall evoked, almost symmetrically on both sides, two reflex discharges: an early response having an oligophasic wave form, and a late response of polyphasic wave form. The threshold of the early response significantly exceeded that of the late response. With repetitive stimulation, the late response generally revealed habituation. Electrical stimulation of the unilateral abdominal wall evoked two responses on the stimulated side, whereas it evoked only the late response on the contralateral side. A needle scratch on the unilateral abdominal wall evoked one reflex discharge with a long latency and a polyphasic wave form. This response occurred generally on the stimulated side and became habituated to repeated scratching. These observations suggest that the superficial abdominal reflexes elicited by electrical stimulation are composed of two reflex discharges with a different reflex arc. They appear to closely resemble the blink reflex. The response elicited by needle scratching is thought to correspond to the late response of the electrically elicited abdominal reflexes. |
| Databáze: | OpenAIRE |
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