title: Perceptions and electric senoidal current stimulation.
abstract: OBJECTIVE
  To analyze the relationship between perceptions and electrical senoidal current stimulation (ESCS).
  
  
  METHODS
  The study population comprise 100 healthy volunteers. ESCS of 5 Hz and 2 kHz were applied to the left index finger at one and 1.5 sensory threshold. Following each stimulus train a list of eight words (four related to thin fiber sensations and four related to thick fiber sensations) was presented to the subjects who were asked to choose the three words closer to the experienced sensation. Each chosen word was given a score 1; final results were obtained by the sum of the scores for the words related to thin and thick fiber systems for each situation.
  
  
  RESULTS
  For 5 Hz ESCS at one and 1.5 sensory threshold thin fibers had significantly higher scores than thick fibers; for 2 kHz ESCS, thick fibers had significantly higher scores.
  
  
  CONCLUSIONS
  These results show that there is a relation between different sensations and ESCS of different frequencies.
authors.affiliation: Neurology and Neurosurgery Department, Federal University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Julia Manzano
authors.initials: JM
authors.lastname: Pimentel
authors.forename: Renata
authors.initials: R
authors.lastname: Petrillo
authors.forename: Mirna Migliacci F
authors.initials: MM
authors.lastname: Vieira
authors.forename: Lydia Maria Pereira
authors.initials: LM
authors.lastname: Giuliano
authors.forename: Carlos Julio
authors.initials: CJ
authors.lastname: Tierra-Criollo
authors.forename: Nadia Iandoli de Oliveira
authors.initials: NI
authors.lastname: Braga
authors.forename: João Antonio Maciel
authors.initials: JA
authors.lastname: Nóbrega
authors.forename: Gilberto Mastrocola
authors.initials: GM
authors.lastname: Manzano
mesh_terms: D000293:Adolescent; D000328:Adult; D004056:Differential Threshold; D004558:Electric Stimulation / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009412:Nerve Fibers / Q000502:physiology*; D010525:Peripheral Nerves / Q000502:physiology*; D010523:Peripheral Nervous System Diseases / Q000175:diagnosis; D010865:Pilot Projects; D012684:Sensory Thresholds / Q000502:physiology*