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Reference threshold sound-pressure levels were established for a new insert earphone, the ER-3A tubephone, and for the TDH-50 earphone. In test-retest comparisons, the tubephone produced estimates of auditory threshold as reliable as the thresholds produced by the supraaural earphone. Reference thresholds were developed for the two earphones from data(More)
The purpose of this research was to determine some of the effects of consonant recognition training on the speech recognition performance of hearing-impaired adults. Two groups of ten subjects each received seven hours of either auditory or visual consonant recognition training, in addition to a standard two-week, group-oriented, inpatient aural(More)
Macular oedema typically results from blood-retinal barrier disruption. It has recently been reported that patients with multiple sclerosis treated with FTY-720 (fingolimod) may exhibit macular oedema. Multiple sclerosis is not otherwise thought to be associated with macular oedema except in the context of comorbid clinical uveitis. Despite a lack of(More)
BACKGROUND There has been little enthusiasm for somatosensory evoked potential monitoring in cervical spine surgery as a result, in part, of the increased risk of motor tract injury at this level, to which somatosensory monitoring may be insensitive. Transcranial electric motor evoked potential monitoring allows assessment of the motor tracts; therefore, we(More)
BACKGROUND Youth with family history of alcohol abuse have a greater risk of developing an alcohol use disorder (AUD). Brain and behavior differences may underlie this increased vulnerability. The current study examined delay discounting behavior and white matter microstructure in youth at high risk for alcohol abuse, as determined by a family history of(More)
A new method of training auditory-visual speech reception is described and evaluated on an experimental group of 12 hearing-impaired adult patients. The method involves simultaneous, live presentation of the visible and acoustic components of the therapist's speech, where the acoustic signal is degraded under the therapist's control with a voice-activated(More)
This investigation identifies correlates of psychological dimensions in talker similarity. Twenty adult male talkers recorded a monosyllabic word, and 13 acoustic measurements were made from spectrograms of each talker's production. All possible pairs of voices were presented to 11 adult listeners for similarity judgments via a paired-comparison paradigm. A(More)
OBJECT The incidence of postoperative C-5 spinal nerve root palsy following decompressive cervical spinal surgery has been reported to be as high as 12% for anterior procedures and 30% for posterior procedures. The present study was conducted to document the prevalence of iatrogenic C-5 nerve root deficit during anterior cervical spinal surgery, as well as(More)
Three experiments were conducted using the California Consonant Test (CCT). Initially, performance-intensity functions were obtained for both normal hearers, and those with high frequency sensorineural hearing loss. Results demonstrated almost a linear function for both subject groups (approaching asymptote at 50 dB SL) as compared to the typical sigmoidal(More)
OBJECTIVE The purpose of this study was to investigate abnormalities in the surface complexity of the prefrontal cortex and in the hemispheric asymmetry of cortical complexity in first-episode patients with schizophrenia. METHOD An estimate of the surface complexity of the prefrontal cortex was derived from the number of voxels along the boundary between(More)