Exposure to chemicals in the workplace can lead to occupational chemical-induced hearing loss, as many chemicals have been internationally recognised as hazardous to hearing. A number of studies have demonstrated that, similar to noise, some chemicals not only affect the sensory organ of the auditory system (the cochlea) but also lead to adverse effects in central auditory structures. Morata an...

Previous studies showed that the time-expanded speech signal and the cue of moving image of talker’s face improve speech intelligibility. Sakamoto et al. (2008) investigated the detection thresholds of auditory-visual asynchrony for timeexpanded speech and a moving image of the talker’s face. Their results showed that detection thresholds in longer words were higher than those for shorter words...

In this study, we measured detection and tolerance thresholds of auditory-visual asynchrony between time-expanded speech and a moving image of the talker’s face for older adults. During experiments, words were presented under two conditions: asynchrony by time-expanded speech (expansion condition, EXP) and simple timing shift (asynchronous condition, ASYN). We used 16 Japanese shorter words (fo...

Non-mammalian vertebrates rely on electrical resonance for frequency tuning in auditory hair cells. A key component of the resonance exhibited by these cells is an outward calcium-activated potassium current that flows through large-conductance calcium-activated potassium (BK) channels. Previous work in midshipman fish (Porichthys notatus) has shown that BK expression correlates with seasonal c...

A recent study has shown that congenitally blind adults, who have never had visual experience, are impaired on an auditory spatial bisection task (Gori, Sandini, Martinoli, & Burr, 2014). In this study we investigated how thresholds for auditory spatial bisection and auditory discrimination develop with age in sighted and congenitally blind children (9 to 14 years old). Children performed 2 spa...

UNLABELLED Smoking is a public health concern and we are still unsure of its relation with auditory problems. AIM To study the effects of cigarette smoking in auditory thresholds, in otoacoustic emissions and in their inhibition by the efferent olivocochlear medial system. MATERIALS AND METHODS 144 adults from both genders, between 20 and 31 years of age, smoking and non-smoking individuals...

The auditory sensitivities of the orange-fronted conure (Aratinga canicularis) were examined in relation to the spectral characteristics of its vocalizations. Absolute thresholds, masked thresholds, frequency difference limens, and intensity difference limens for pure tones were obtained using psychoacoustic techniques. In general, hearing abilities are similar to those found in many avian audi...

OBJECTIVE To evaluate the effects of using the Electrode Positioning System on psychophysical auditory thresholds, most comfortable loudness levels, and electric auditory brainstem response (EABR) thresholds in children with the Clarion version 1.2 cochlear implant. DESIGN Retrospective analysis. SETTING Academic tertiary care center. PATIENTS AND METHODS Clinical records of a series of 2...

BACKGROUND Developmental exposure to polychlorinated biphenyls (PCBs) or methylmercury (MeHg) can result in a variety of neurotoxic effects, including long-term auditory deficits. However, little is known about the effects of combined exposure to PCBs and MeHg on auditory function. OBJECTIVE We developmentally exposed rats to PCBs and/or MeHg and assessed auditory function in adulthood to det...

the clinical and phenotypic features of two siblings (a 12 years old girl and her 7 year old brother) with cockayne syndrome are described. the main problems were mild to moderate mental retardation, dwarfism, clumsy gait, photosensitive skin lesions and progeroid (senile like) appearance. brain ct - scans revealed symmetrical, well defined areas of calcification mainly located at lenticular nu...