Title: Habituação do reflexo cócleo-palpebral no período neonatal e desenvolvimento auditivo Habituation of the blink reflex in hte neonatal period and development of auditory processing
Abstract: Objective: To verify the existence of an association between the presence/absence of the blink reflex habituation in the neonatal period as well as the auditory processing development. Methods: The occurrence of blink reflex habituation was studied in 33 neurologically normal neonates, who had their behavioral responses analyzed and classified according to Azevedo (1993), between 9 and 25 months of age. Habituation of the blink reflex was verified using a sound stimulus of nearly 90 dB. The stage of the auditory processing development was evaluated through a sound stimulus of nearly 41 dB. Statistical data were analyzed with Fischer and χ 2 tests. Results: Out of the 33 studied children, 22 presented blink reflex habituation in the first stage of the study. In 7 of them, the auditory processing stage matched their chronological age, while in 15 of them, the auditory processing stage was found inadequate to their chronological age. Eleven children failed to present habituation of the blink reflex in the first stage of the study. From this group, eight children disclosed auditory responses that were adequate to their chronological age and three, inadequate. A statistically significant association between the presence of blink reflex habituation and an auditory processing delay was verified as well as between the absence of the blink reflex habituation and chronologically suitable responses. Conclusions: The presence of blink reflex habituation in the neonatal period does not seem to be a predictive factor of the adequate auditory processing.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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