title: A comparative study: TTS Vs wave V after exposure to noise.
abstract: The pattern of recovery from noise exposure was monitored, with regards to the behaviour and electrophysiology in 25 normal-hearing subjects, at 4 KHz frequency for 30 min. Fatiguing stimulus was an octave band noise with centre frequency of 3 KHz. Subject's behaviour following to the auditory fatigue was studied by temporary threshold shift (TTS) paradigm. In the electrophysiological study, the auditory fatigue was measured as a shift of the wave V latency in the auditory brainstem responses (ABR) after noise exposure. This shift was measured at 40 dB nHL stimulus intensity ("Logon" with centre frequency at 4 KHz). The ABR recordings started immediately after cessation of noise exposure and threshold measurements 2 min later. The recovery of latency shift began immediately after the exposure and ended faster than the auditory threshold. From a practical point of view it means that in order to measure maximal values of latency shift, the ABR recordings should be performed immediately after cessation of noise exposure.
authors.affiliation: Clinica ORL, Accademia di Medicina di Varsavia.
authors.forename: K
authors.initials: K
authors.lastname: Kochanek
authors.forename: G
authors.initials: G
authors.lastname: Janczewski
authors.forename: C
authors.initials: C
authors.lastname: Abbate
authors.forename: C
authors.initials: C
authors.lastname: Giorgianni
authors.forename: F
authors.initials: F
authors.lastname: Munaò
authors.forename: G
authors.initials: G
authors.lastname: Beninato
authors.forename: D
authors.initials: D
authors.lastname: Germanò
mesh_terms: D000328:Adult; D001305:Auditory Fatigue; D001309:Auditory Threshold; D004569:Electroencephalography; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D006801:Humans; D008297:Male; D009622:Noise / Q000009:adverse effects*; D011897:Random Allocation; D012106:Research; D013997:Time Factors