The role of the tactile‐pressure afferents in the habituation phenomenon of trigemino‐facial reflex

B. Rossi, C. Giannini, G. Siciliano, F. Sartucci

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Abstract– In ten healthy subjects the trigemino‐facial reflex was elicited by double shock (delta t = 0.5–1 s). The first stimulus was subliminal for pain and the second supramaximal for it. The percentage integral values, with respect to single shock, of the direct and consensual conditioned responses obtained in all subjects were averaged and compared with those conditioned by supramaximal stimuli for pain fibres. Significant differences between subliminal and supramaximal conditioning stimuli for pain fibres is revealed for only consensual R3 with delta t = 1 s: greater inhibition with painful stimuli. There were no significant differences in any of the other values. Our results show that a subliminal conditioning stimulus for pain threshold can inhibit the late responses to the test stimulus, both for R2 and especially for R3, suggesting that this mechanism can contribute to the trigeminofacial reflex habituation phenomenon.

Original languageEnglish (US)
Pages (from-to)602-605
Number of pages4
JournalActa neurologica Scandinavica
Volume72
Issue number6
DOIs
StatePublished - Dec 1985

Keywords

  • Habituation
  • tactile‐pressure afferents
  • trigemino facial reflex

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

Fingerprint Dive into the research topics of 'The role of the tactile‐pressure afferents in the habituation phenomenon of trigemino‐facial reflex'. Together they form a unique fingerprint.

  • Cite this