Hearing loss is one of the most common complaints in adults over the age of 60 and a major contributor to difficulties in speech comprehension. To examine the effects of hearing ability on the neural processes supporting spoken language processing in humans, we used functional magnetic resonance imaging to monitor brain activity while older adults with age-normal hearing listened to sentences t...

OBJECTIVES To examine the impact of hearing impairment on a listener's ability to process simultaneous spoken messages. DESIGN Nine young listeners with bilateral sensorineural hearing loss and nine young listeners with normal hearing participated in this study. Two messages of equal level were presented separately to the two ears. The messages were systematically degraded by adding speech-sh...

People with sensorineural hearing loss have difficulty understanding speech, especially when background sounds are present. A reduction in the ability to resolve the frequency components of complex sounds is one factor contributing to this difficulty. Here, we show that a reduced ability to process the temporal fine structure of sounds plays an important role. Speech sounds were processed by fi...

Background: Speech perception ability depends on auditory and extra-auditory elements. The signal-to-noise ratio (SNR) is an extra-auditory element that has an effect on the ability to normally follow speech and maintain a conversation. Speech in noise perception difficulty is a common complaint of the elderly. In this study, the importance of SNR magnitude as an extra-auditory effect on speech...

  Hearing loss is a major social problem and its rehabilitation is very important. Considering its prevalence in Iran, this study was performed to evaluate cases of hearing loss in referrals of Alzahra and Edgehie audiometry centers during the years 1995-1996. The descriptive strategy of this study was carried out on referrals of two audiometry clinics in Isfahan from October 1995 to 1996. Ou...

Deaf subjects who use American Sign Language as their primary language generated visual mental images faster than hearing nonsigning subjects when stimuli were initially presented to the right hemisphere. Deaf subjects exhibited a strong right hemisphere advantage for image generation using either categorical or coordinate spatial relations representations. In contrast, hearing subjects showed ...

BACKGROUND Theory of Mind. AIM the purpose of this study was to assess the self-representation abilities in 7-8 year old children and to verify the relationship between the Theory of Mind and language. METHOD subjects of this study were 100 children - 50 boys and 50 girls - with ages between 7:2 and 8:11, divided in four groups: 7-year-old children with no communication deficits (Group 1), ...

background: speech perception ability depends on auditory and extra-auditory elements. the signal-to-noise ratio (snr) is an extra-auditory element that has an effect on the ability to normally follow speech and maintain a conversation. speech in noise perception difficulty is a common complaint of the elderly. in this study, the importance of snr magnitude as an extra-auditory effect on speech...

This paper describes the relation between the region defined by the first and second formant frequencies and those peak levels in order to design a compression type of hearing aid. The experiments are conducted with the normal hearing subjects whose hearing areas are restricted by increasing HTL with masking noise. We present the synthetic speech signal with two resonant components to examine h...

The auditory evoked potential technique has been used for the past 30 years to evaluate the hearing ability of fish. The resulting audiograms are typically presented in terms of sound pressure (dB re. 1 μPa) with the particle motion (dB re. 1 m s(-2)) component largely ignored until recently. When audiograms have been presented in terms of particle acceleration, one of two approaches has been u...