title: Menstrual cycle synchronized changes in brain stem auditory evoked potentials and visual evoked potentials.
abstract: BACKGROUND
  Several studies have reported changes in the spontaneous electroencephalogram of women across the menstrual cycle (MC), raising questions on whether sensory or cognitive evoked potentials would change with MC as well. Some of these studies have found changes synchronized with MC in visual event-related brain potentials (ERPs) and brain stem auditory evoked potentials (BAEPs), whereas others have reported none.
  
  
  METHODS
  In the present study, we attempted to study the changes in P300 component of visual ERPs, and in BAEPs across the MC in healthy women.
  
  
  RESULTS
  The latency of P300 was longer during the ovulatory phase. Decrease across the MC phases was found for the amplitude of BAEP waves I and III, and for the wave V latency and the III-V interpeak latency.
  
  
  CONCLUSIONS
  The results indicate that there may be a small relationship between visual ERP or BAEP and MC phase.
authors.affiliation: Department of Psychiatry and Behavioral Sciences, University of Louisville School of Medicine, Kentucky 40292, USA.
authors.forename: A
authors.initials: A
authors.lastname: Tasman
authors.forename: T
authors.initials: T
authors.lastname: Hahn
authors.forename: A
authors.initials: A
authors.lastname: Maiste
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001933:Brain Stem / Q000502:physiology*; D002540:Cerebral Cortex / Q000502:physiology*; D016001:Confidence Intervals; D004192:Discrimination, Psychological / Q000502:physiology; D018913:Event-Related Potentials, P300 / Q000502:physiology*; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008597:Menstrual Cycle / Q000502:physiology*; D010507:Periodicity; D013028:Space Perception / Q000502:physiology