Audiological Characterization of Individuals with Cornelia de Lange Syndrome.

 Cornelia de Lange Syndrome (CdLS) is a genetic disorder in which individuals may present sensorineural and/or conductive hearing loss, and the results of behavioral auditory assessments are not accurate.  To characterize the audiological profile of individuals with CdLS through behavioral, electroacoustic, and electrophysiological audiological assessments.  The study included 13 individuals of both sexes, aged between 3 and 26 years, with diagnoses confirmed through genetic studies.

Peripheral and brainstem auditory evaluation in post-COVID-19 individuals.

Purpose: The purpose of this study was to investigate the peripheral and central auditory pathways in adult individuals after COVID-19 infection.

Method: A total of 44 individuals aged between 19 and 58 years, of both genders, post-COVID-19 infection, confirmed by serological tests, with no previous hearing complaints and no risk factors for hearing loss, were assessed. All the participants underwent the following procedures: pure tone audiometry, logoaudiometry, immitanciometry, and Brainstem Auditory Evoked Potentials (BAEP), in addition to answering a questionnaire about auditory symptoms.

Study of the peripheral and central auditory pathways in patients with mucopolysaccharidosis.

Objective: To investigate the peripheral and central auditory pathways in mucopolysaccharidosis (MPS) individuals.

Method: The research sample comprised 15 individuals (one female and 14 males), aged 8 to 46 years. The following procedures were used: medical history survey, otoscopy, speech and pure-tone threshold audiometry, acoustic immittance measures, and central auditory pathway assessment with brainstem auditory evoked potentials (BAEP) and long-latency auditory evoked potentials (LLAEP).

Evaluation of cognitive functions in the elderly with and without central auditory processing disorder.

Purpose: Evaluate and compare the performance of cognitive functions between elderly with and without auditory processing disorders.

Methods: Twenty-eight healthy elderly (14 Control group and 14 Auditory Processing Disorder group - APD group) participated in the study. All elderly were submitted to (central) auditory processing evaluation, P300 event-related potential and brief cognitive battery (BCB).

Personal Audio System: Hearing Symptoms, Habits, and Sound Pressure Levels Measured in Real Ear and a Manikin.

Purpose The aims of this study were to characterize hearing symptoms, habits, and sound pressure levels (SPLs) of personal audio system (PAS) used by young adults; estimate the risk of developing hearing loss and assess whether instructions given to users led to behavioral changes; and propose recommendations for PAS users. Method A cross-sectional study was performed in 50 subjects with normal hearing. Procedures included questionnaire and measurement of PAS SPLs (real ear and manikin) through the users' own headphones and devices while they listened to four songs.

Training in the proper use of earplugs: An objective evaluation.

Background: Discrepancies between attenuation obtained in the laboratory and the field are caused by several factors associated with hearing protection devices (HPDs). The effects of some factors can be minimized with proper training provided to HPD users.

Objective: To evaluate the effectiveness of an educational intervention for improving the correct use of earplugs as HPDs in workers exposed to occupational noise by using the F-MIRE method and by comparing pre- and post-training attenuation values and pass/fail rates.

Electrophysiological characterization of hearing in individuals with Down syndrome.

Introduction: Few studies have performed Brainstem (BAEP) and P300 Auditory Evoked Potentials simultaneously to assess central auditory pathways in normal hearing individuals with Down syndrome (DS), mainly because of the difficulty in applying these procedures to this population. Previous studies have suggested that individuals with DS might present different patterns of response compared with those of individuals with typical development; nevertheless, the identification of these potentials would be crucial for the establishment of an accurate audiological diagnosis.

Purpose: To characterize BAEP and P300 in normal-hearing individuals with DS.

Can speech-evoked Auditory Brainstem Response become a useful tool in clinical practice?

Purpose: To discuss the clinical applicability of the speech-evoked Auditory Brainstem Response (speech-evoked ABR) to help identifying auditory processing disorders.

Methods: We analyzed the records of 27 children and adolescents, aged between seven and 15, who presented abnormal speech-evoked ABR. Then, the data from the behavioral auditory processing evaluation of these individuals were surveyed.

Training on hearing protector insertion improves noise attenuation.

Purpose: To determine the efficacy of hearing protector insertion by comparing attenuation values measured by objective (MIRE) and subjective (REAT) methods in groups with and without training.

Methods: The study included 80 male subjects assigned to experimental (with training) and control (without training) groups. The following procedures were performed: occupational history, objective and subjective assessment of hearing protectors.

Middle ear muscle reflex measurement in neonates: comparison between 1000Hz and 226Hz probe tones.

Introduction: Middle ear muscle reflex (MEMR) evaluation assists in diagnosing hearing problems because normal responses depend on preconditions of a healthy auditory system. Studies in neonates recording the acoustic reflex with 226Hz probes have described high rates of absence. Other studies using a high frequency probe have found higher rates of presence in normal neonates.

Cortical inhibition effect in musicians and non-musicians using P300 with and without contralateral stimulation.

Introduction: Musicians have more robust and efficient neural responses in the cortical and sub-cortical regions, demonstrating that musical experience benefits the processing of both non-linguistic and linguistic stimuli.

Objective: This study aimed to verify P300's latency and amplitude behavioral using contralateral stimulation in musicians and non-musicians.

Methods: This was a case-control study.

Temporal processing in children with phonological disorders submitted to auditory training: a pilot study.

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:

Control Group: five subjects (mean age 9.

Effectiveness verification of an educational program about hearing protection for noise-exposed workers.

Purpose: To verify the effectiveness of an educational action in the form of training, emphasizing the importance of hearing protection for workers exposed to occupational noise.

Methods: The study included 78 male individuals. All participants answered a questionnaire before they were submitted to audiological evaluation.