Renata Mota Mamede Carvallo

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This study concerns contralateral white noise suppression of transient evoked otoacoustic emissions (TEOAEs) in children with auditory processing disorder (APD). Fifty-one children between 7 and 11 years were assigned to 1 of 3 experimental groups: those without auditory complaints (n = 15), those with APD who scored high on a standardized test (n = 20) and(More)
UNLABELLED Auditory processing depends on afferent and efferent auditory pathways integrity. The efferent auditory system may be assessed in humans by two non-invasive and objective methods: acoustic reflex and otoacoustic emissions suppression. AIM Analyze the efferent auditory system activity by otoacoustic emission suppression and acoustic reflex(More)
Mercury is neurotoxic, and numerous studies have confirmed its ototoxic effect. However, the diagnosis and follow-up of mercury exposure require understanding the pathophysiology of the chemical substance. Based on a systematic literature review, this study aimed to demonstrate whether mercury is ototoxic and to analyze its mechanism of action on the(More)
OBJECTIVES To determine the effect of maternal smoking during pregnancy on transient evoked otoacoustic emissions levels in neonates. METHODS This was a cross-sectional study investigating neonates in the maternity ward of a university hospital in the city of São Paulo, Brazil. A total of 418 term neonates without prenatal or perinatal complications were(More)
BACKGROUND the Gaps-in-Noise (GIN) test assesses the auditory temporal resolution skill. Studies have described the GIN test an instrument of easy application and with good sensitivity and specificity. AIM to compare the results of the GIN test in normal listeners with and without tinnitus and to correlate the obtained results with pure tone thresholds(More)
Hearing thresholds were estimated in normal-hearing term and preterm neonates of <35 weeks of age using multiple-stimulus auditory steady-state responses (ASSRs). The tresholds, expressed in decibel sound pressure level, at signal frequencies of 500, 1000, 2000 and 4000 Hz were 44.30 +/- 9.88, 27.80 +/- 6.79, 26.77 +/- 6.09 and 32.87 +/- 6.12 for the term(More)
UNLABELLED Tympanometry is used in evaluating middle ear functional conditions. Before six months of age its results may be misleading. High frequency studies aim to provide more valid procedures. AIM To describe and discuss tympanometric measurements and the interpretation in normal hearing neonates at 226, 678 and 1000Hz. METHOD 110 neonates that were(More)
PURPOSE This study compared the temporal processing performance of children with phonological disorders submitted to formal and informal auditory training. METHODS Fifteen subjects with phonological disorder (pure tone thresholds ≤20 dBHL from 0.50 to 4 kHz, and age between 7 years and 10 years and 11 months) were evaluated, divided into three groups: (More)
PURPOSE To describe the Brainstem Auditory Evoked Potential (BAEP) results of full-term small-for-gestational-age newborns, comparing them to the results of full-term appropriate-for-gestational-age newborns, in order to verify whether the small-for-gestational-age condition is a risk indicator for retrocochlear hearing impairment. METHODS This(More)
PURPOSE To verify if there is an association between temporal auditory tests and phonological awareness in individuals with reading and writing disorders. METHODS Sixteen children were subjects of this study, aged between 7 and 12 years old, who had reading and writing disorders confirmed after specific assessment. All participants underwent phonological(More)