Research Article

Otitis Media: Long-Term Effect on Central Auditory Nervous System

Table 1

Parameters of acquisition of the Click-ABR and FFR.

PARAMETERSClick-ABRFFR

EquipmentBiologic Navigator ProBiologic Navigator Pro
Stimulated EarRE and LERE and LE
StimulusNot verbalVerbal
Type of the stimulusClickSpeech
Duration of the stimulus 0.1 msec40 msec
Polarity of the stimulusRarefactionAlternate
Intensity of the stimulus80 dBHL80 dB SPL
Speed of the stimulus19.3/sec10.9 sec
Number of sweeps20006000
Replicability2 collections of 2000 2 collections of 3000
Filter100-1500 Hz100-2000 Hz
Window10.66 msec85.33 msec
TransducerInsert (ER-3A; Natus Medical)Insert (ER-3A; Natus Medical)

Legend: RE: Right Ear; LE: Left Ear; msec: milliseconds; sec: seconds; ABR: Auditory Brainstem Response; FFR: Frequency Following Response.