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Auditory precessing and auditory brainstem response (ABR)

PURPOSE: to investigate the correlation of auditory brainstem response (ABR) and behavioral auditory processing evaluation. METHODS: sixty girls, from Paraíba do Sul, ranging from 9 to 12-year-old were evaluated. In order to take part in the study all of them should have normal hearing thresholds, type A tympanograms and presence of acoustic reflexes. Behavioral auditory processing evaluation consisted of: sound localization, memory for verbal and non verbal sounds in sequence, speech in noise test, SSW test and nonverbal dichotic test. After the behavioral testing children were divided into two groups, G1 ( without auditory processing disorders) and G2 (with auditory processing disorders of any degree and categorization) and have undergone the register of auditory brainstem response (ABR). The groups were compared using absolute latencies of Waves I, III, V and interpeak latencies I-III, III-V, I-V and interaural difference of Wave V latency. RESULTS: our results indicated statistical significant differences considering interpeak latency in the left ear (p=0.009), in right and left ears considering interpeak latencies for G2 (p=0.02) and in interpeak latencies of waves I and V considering right and left ears between the groups G1 and G2 (p=0.025). CONCLUSION: significant differences were observed comparing behavioral evaluation and ABR considering interpeak latency of waves I and V in the left ear and interaural difference I-V in the left ear.

Auditory Perception; Audiometry; Evoked Response; Child


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