The inner ear receives two types of efferent feedback from the brainstem: one pathway provides gain control on outer hair cells' contribution to cochlear amplification, and the other modulates the excitability of the cochlear nerve. Although efferent feedback can protect hair cells from acoustic injury and thereby minimize noise-induced permanent threshold shifts, most prior studies focused on ...

RESULTS Out-patient and in-patient caseloads differ between the two services: 27% of the deaf out-patient caseload have schizophrenia, schizotypal and delusional disorders (compared with 19% of hearing patients) and 19% have neurotic, stress-related and somatoform disorders (compared with 8% of hearing patients). The general psychiatric service out-patient case-load had rates of 8% and 43% for ...

Systematic study in animals indicated, that in addition to cough there are 2 distinct airway reflexes. The aspiration reflex (AspR) characterized by rapid and strong gasp-like inspiration provoked by stimulation of nasopharynx, nasal phyltrum or auricle of ear. The expiration reflex (ExpR) manifests by prompt expiration, induced by laryngeal stimulation. Both reflexes strongly activate the brai...

INTRODUCTION Disorders affecting the oropharynx and esophagus are relatively common in dogs, and are typically associated with dysphagia. Despite the frequency of this problem, the diagnosis of disorders affecting the oropharyngeal, esophageal or gastroesophageal phase of swallowing can be extremely challenging, and warrant a thorough physical examination, followed by clinical observations of t...

Trigeminal innervated areas in face, nasolacrimal, and nasal mucosa can produce a wide array of cardiorespiratory manifestations that include apnea, bradypnea, bradycardia, hypotension, and arrhythmias. This reflex is a well-known entity called "trigemino-cardiac reflex" (TCR). The role of TCR is investigated in various pathophysiological conditions especially in neurosurgical, but also skull b...

Minimal Hearing Loss (MHL) is a commonly overlooked clinical problem; it affects about 5% of children. Children with MHL may be at risk academically due to their poorer speech perception in the noisy classrooms [1]. MHL has generally been defined as a group of hearing disorders that include mild hearing loss, unilateral hearing loss, and high-frequency hearing loss. MHL may result from conducti...

This study addressed the issue of whether functional impairments can be identified or confirmed using tonal acoustic reflex thresholds (ARTs). Tonal ARTs from 74 ears with functional impairments were compared to 10th percentiles of the ARTs for normal and cochlear-impaired ears at 500 to 2000 Hz (Gelfand, Schwander, and Silman, 1990). Only one ear (5.3%) was correctly identified among the 19 ea...

During emotion perception, context is an important source of information. Whether contextual cues from modalities other than vision or audition influence the perception of social emotional information has not been investigated. Thus, the present study aimed at testing emotion perception and regulation in response to fearful facial expressions presented in the context of chemosensory stimuli der...

A conditioned patellar tendon reflex paradigm was used to study the contributions of crossed spinal and supraspinal inputs to the output of the alpha motoneuron pool in children with and without developmental coordination disorders. The basic patellar tendon reflex response was exaggerated in children with developmental coordination disorders. Crossed spinal and supraspinal influences on the ex...

One example of work that has a high risk in the world railways is maintenance railway facilities. risks posed comes from noise generated activities carried out. This study used Soundlevel Meter tool to measure intensity facility environment. The measured level equivalent level. also seeks find out impact and what prevention steps have been taken. environment, especially final test, 90.82 dB. ex...