Fragile X syndrome (FXS) is the most common inherited cause of mental retardation resulting in developmental delays in males. Atypical outer ear morphology is characteristic of FXS and may serve as a marker for abnormal auditory function. Despite this abnormality, studies of the hearing of young males with FXS are generally lacking. A few studies…

Residual hearing capabilities of nine severely and profoundly retarded deaf-blind children (7-13 years old) were determined with an operant procedure that allowed the children to respond by making a selection between two responses, one which resulted in the presentation of auditory reinforcement or one which resulted in no reinforcement.…

Conductive hearing losses were simulated in 12 subjects aged 19-35 and performance was compared with normal hearing performance. Digit dichotic performance was affected when test intensities were within 8 dB of the "knees" (95 percent correct point) of monotic performance intensity functions, but not when test intensities were 12 dB…

To study the feasibility of using filtered environmental sounds as test stimuli to determine the auditory sensitivity of young children, a tape recorded test was prepared using environmental sounds which retain their identity when filtered. Twenty normal-hearing preschoolers and 40 hearing impaired children (20 with flat sensori-neural hearing…

Describes observer-based technique for assessing auditory capacities of infants from three to 12 months of age. This technique, referred to as the Observation-based Psychoacoustic Procedure (OPP), combines features of the Forced-choice Preferential Looking Technique and of the Visual Reinforcement Audiometry. Pure-tone detection and frequency…

A modification of the observer-based psychoacoustic procedure was used to estimate the detectability of auditory signals by infants. Data from infants up to 3.5 months of age revealed improvement in performance as a function of increasing signal intensity and age. (BC)

A TECHNIQUE FOR OVERCOMING HEARING PROBLEMS IN INFANTS AND CHILDREN IS DESCRIBED IN THIS BOOK WHICH ALSO REPORTS ON 10 YEARS OF HEAR (HEARING EDUCATION THROUGH AUDITORY RESEARCH) FOUNDATION ACHIEVEMENTS. ANY CHILD IS ELIGIBLE FOR AUDIOMETRIC EVALUATION AND/OR THERAPY AT THE FOUNDATION, WHICH ROUTINELY FITS CHILDREN WITH BINAURAL AIDS. EXPLANATIONS…

This study evaluated English phrases and sentences in a minimal-pairs syllable-test format, to assess use of acoustic cues in audiovisual perception of speech by persons with severe or profound hearing loss. Of 48 items, 39 were visually confusable; 16 items identified as visually confusable were reliably identifiable when sound was added.…

This case study focuses on a bilingual, older man who spoke Polish and English and showed weaknesses on clinical measures of dichotic listening in English. It was unclear whether these test results were influenced by the participant's facility with his second language or by other nonauditory factors. To elucidate the nature of this deficit, the…

The origins and nature of auditory dysfunction in school age children and the role of the audiologist in the evaluation of the learning disabled child are reviewed. Specific structures and mechanisms responsible for the reception and perception of auditory signals are specified. (Author/SEW)

The study investigated whether low frequency air and bone thresholds elicited at high intensity levels from deaf children with a sensory-neural diagnosis reflect valid auditory sensitivity or are mediated through cutaneous-tactile receptors. Subjects were five totally deaf (mean age 17.0) yielding vibrotactile thresholds but with no air and bone…

The parameters influencing the respiratory pattern at or near the threshold for hearing were studied in hearing impaired and normal hearing subjects. A semiautomatic system was designed to process the data. Results indicated that thresholds for pure tones could be estimated better on the inspiration phase of the breathing cycle and that duration…

IN ORDER TO PROVIDE BOTH CLINICIAN AND INVESTIGATOR WITH A BETTER UNDERSTANDING OF THE PROBLEMS, CAUSES, IDENTIFICATION, AND HANDLING OF SENSORINEURAL HEARING LOSSES, THE HENRY FORD HOSPITAL INVITED INVESTIGATORS IN PSYCHOACOUSTICS, OTIOLOGY, OTONEUROLOGY, PHSIOLOGY, AND AUDIOLOGY TO SHARE THEIR RESEARCH AND CLINICAL FINDINGS. THE RESULTING 40…