title: The effect of trataka, a yogic visual concentration practice, on critical flicker fusion.
abstract: OBJECTIVE
  The study objective was to study the change in the critical flicker fusion (CFF) after a yogic visual concentration practice (trataka).
  
  
  METHODS
  Thirty (30) subjects participated in a study where they were evaluated for the CFF immediately before and after the practice. The subjects also participated in a comparable control session.
  
  
  METHODS
  The subjects were 30 volunteers in the age range 25-40. Fifteen (15) of the volunteers were male. The mean age was 31.33 ± 4.67.
  
  
  RESULTS
  The CFF showed a statistically significant increase from 37.35 ± 2.84 to 38.66 ± 2.91 after the yoga practice of trataka. The control session did not produce a statistically significant change in the CFF.
  
  
  CONCLUSIONS
  An increase in the CFF is seen immediately after the yogic concentration practice called trataka.
authors.affiliation: Swami Vivekananda Yoga University, Bangalore, India.
authors.forename: Taruna
authors.initials: T
authors.lastname: Mallick
authors.forename: Ravi
authors.initials: R
authors.lastname: Kulkarni
mesh_terms: D000328:Adult; D001288:Attention; D005425:Flicker Fusion; D006801:Humans; D008297:Male; D019122:Meditation / Q000523:psychology*; D015013:Yoga / Q000523:psychology*