000			02004caa a2200241 4500
008			210621s9999 xx 000 0 und d
022			_a1434-4726
100			_aPrashanth Prabhu
245		0	_aRole of sex hormones produced during menstrual cycle on brainstem encoding of speech stimulus
260			_c2016
270			_aDepartment of Audiology, All India Institute of Speech and Hearing, Manasagangothri, Naimisham Campus, Mysore, 570006, Karnataka, India
270			_mprashanth.audio@gmail.com
300			_a3647-3650
490			_vVolume 273 Issue 11
520			_aThere are no studies attempted to determine the effects of different phases of menstrual cycle on frequency following response (FFR) for speech stimuli. The aim of the study was to determine the differences in latencies and amplitude of FFR waves recorded at four phases of menstrual cycle. In addition, it was also attempted to determine if there is any ear effect on latency and amplitude measures across the phases of menstrual cycle. FFR was recorded in 20 females in the age range of 18-25 years in the four menstrual cycles [Phase I-menses (day 1-3), Phase II-proliferative phase (day 11-14), Phase III-mid-luteal phase (day 17-22) and Phase IV-pre-menstrual phase (day 25-27)]. The results of the study showed that there was significant reduction in latencies and slight increase in amplitude during menses and mid-luteal phase compared to mid-cycle and pre-menstruation cycles. The present study supports the hypothesis that difference in the levels of sex hormones in women during menstrual cycle can affect brainstem encoding of speech stimuli.
653			_aEstrogen; Frequency following response; Menses; Mid-luteal phase; Pre-menstruation; Progesterone; Proliferative phase.
700			_aArya Anil
700			_aAsma Abdulla
700			_aNeha Banerjee
773			_aEuropean Archives of Oto-Rhino-Laryngology
856			_uhttps://doi.org/10.1007/s00405-016-4009-2
942			_cFJAS _yFJAS
999			_c17637 _d17637