Noise effective masking level for bone conduction of wide-spectrum short-duration signals in normal hearing adults.

Objective: The objective of this study is to determine the noise effective masking level (EML) and inter-aural attenuation (IA) for click and CE-Chirp signals presented though a Radioear B-81 to elicit the auditory brainstem responses in normally hearing, young adults.

Design And Study Sample: A total of 26 conveniently sampled adults (13 male and 13 female, aged 18-25 years; 52 ears), with pure-tone hearing thresholds not >15 dB nHL at octave frequencies from 250 to 8000 Hz, and subjective thresholds for the bone-conducted click and CE-Chirp not >10 dB nHL.

Results: At stimulus intensities of 30 and 40 dB nHL, the contralateral EML was 67.

[The follow-up study on patients of children with auditory neuropathy].

To analyse the audiological characteristics of patients of children with auditory neuropathy（AN） for gaining a better understanding of the audiological characteristics prognosis of patients with AN. 58 patients（108 ears） of children with AN were enrolled, all of whom had received further consultation within 10 years after the first consultation. Behavioral audiometry test, tympanogram test, distortion product otoacoustic emission（DPOAE）, auditory brainstem response（ABR）, cochlear microphonics（CM）, auditory steady-state response（ASSR） were performed on these patients.

[Application of behavioral audiometry in subjective hearing assessment of children].

To explore the value and influencing factors of behavioral audiometry in subjective hearing assessment of children. The results of behavioral audiometry（visual reinforcement audiometry or play audiometry） of 1944 children（3888 ears） in the outpatient department from January 2012 to December 2015 were retrospectively analyzed. The subjective performance（" good ", "moderate", "poor", " unfinished "） was compared according to age and hearing level.

[Analysis of audiological features in infants with unilateral hearing loss].

To investigate the audiological characteristics and possible causes of unilateral hearing loss in infants and young children. 105 infants from Beijing Maternal and Child Health Care Institution who failed the newborn hearing screening and were referred to the Children's Hearing Diagnosis Center of PLA General Hospital for hearing diagnosis. They were diagnosed with unilateral hearing loss and underwent clinical data collection.

Surface-based functional metrics and auditory cortex characteristics in chronic tinnitus.

Abnormal auditory cortex (AC) neuronal activity is thought to be a primary cause of the auditory disturbances perceived by individuals suffering from tinnitus. The present study was designed to test that possibility by evaluating auditory cortical characteristics (volume, curvature, surface area, thickness) and surface-based functional metrics in chronic tinnitus patients. In total, 63 chronic tinnitus patients and 36 age-, sex- and education level-matched healthy control (HC) patients were enrolled in this study.

Characteristics of cochlear microphonics in infants and young children with auditory neuropathy.

Conclusions: Cochlear microphonics (CMs) play an important role in the diagnosis of auditory neuropathy (AN). It is necessary and helpful to diagnose the sites-of-lesion in infants and children with AN by analyzing the patterns of CM amplitudes and I/O functions together.

Objectives: To investigate the characteristics and clinical significance of CMs in the diagnosis of AN among infants and children.

Unilateral auditory neuropathy spectrum disorder.

Conclusions: The majority of the patients with unilateral auditory neuropathy spectrum disorder (UANSD) were pediatric and mostly showed a great degree of hearing loss when diagnosed. Abnormal auditory brainstem response (ABR) and preserved otoacoustic emissions (OAEs) and/or cochlear microphonics (CM) were important features to differentiate it from common sensorineural deafness and central nerve hearing loss.

Objective: To identify the clinical characteristics of patients with UANSD.

[Correlation between phonetically balanced maximum and pure tone auditory threshold among 106 auditory neuropathy patients].

Objective: To estimate correlation between phonetically balanced maximum (PB max) and pure tone auditory threshold in auditory neuropathy (AN) patients.

Methods: One hundred and six AN patients were identified using multiple criteria including PB max, a metric for speech recognition, pure tone auditory threshold, acoustic emission test, distortion products otoacoustic emission (DPOAE) and auditory brainstem response (ABR). SPSS statistical software was used to estimate the Pearson's correlation between PB max and pure tone auditory threshold and to test whether pure tone auditory threshold, or auditory configuration had a significant impact on PB max.

[The characteristic of enlarged vestibular aqueducts syndrome in pure tone audiometry: low frequency air-bone gap].

Objective: The purposes of this study was to analyse the significant of low frequency air-bone gap in enlarged vestibular aqueduct (EVA) patients according to the pure tone audiogram and the benefit for clinic diagnosis of the EVA.

Method: The audiology testing include (1) play audiometry or pure tone audiometry, tympanometry, middle ear muscle reflex thresholds and stapedius muscle reflex; (2) High-resolution computed tomography (CT) scan of the temporal bone and magnetic resonance imaging was used for diagnoses the EVA.

Result: All the 78 patients (154 ears) were diagnosed as the typical EVA by CT or MRI.