Frederick N. Martin

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A proposal is made that 15 dB HL, rather than 25 dB HL, be considered the upper limit of normal hearing sensitivity. This recommendation is based on an explanation of the change from an earlier philosophy and the fact that so many people with hearing levels that average less than 25 dB HL consider themselves to have hearing difficulty. Such reclassification(More)
Thirty normal-hearing subjects participated in an experiment testing the effects of pauses in the competing discourse on the synthetic sentence identification (SSI) task. When speech noise was added to the continuous discourse used for competition, subjects found it more difficult to identify the key words in the synthetic sentences.
Thirty unsophisticated participants with normal hearing were paid to simulate a hearing loss according to their success in "deceiving" the examiner. The behaviors that these "malingerers" manifested are described. A post-examination interview revealed the strategies used by these participants, which may reflect those strategies used by patients who truly(More)
Twenty individuals were tested to determine the occlusion effect caused by supraaural earphones and by insert earphones with shallow and deep insertion of its foam eartip. The bone-conduction oscillator was placed both on the forehead and the mastoid. It was concluded that using deeply inserted earphones is the most practical way in which to carry out(More)
Sound pressure levels (SPLs) were measured in the external auditory canals (EACs) of 16 subjects with normal hearing and normal middle ear immittance. SPLs were the result of bone-conduction (BC) stimulation at 500, 1000, 2000, and 4000 Hz, with the oscillator placed either on the forehead or on the mastoid process. At 1000, 2000, and 4000 Hz, significantly(More)
Fifteen subjects with unilateral sensorineural hypacusis were tested to determine the sound intensity eliciting the acoustic reflex in normal and impaired ears and the sound intensity in the normal ear which is equal in loudness to the intensity eliciting the acoustic reflex in the abnormal ear. Results suggest that loudness is not the mediating factor in(More)
Twenty subjects with normal hearing and 15 subjects with mild-to-moderate sensorineural hearing losses were tested with eight lists of words using monosyllabic pronunciation to determine word recognition scores. Four of the lists were taken from Northwestern University Test No. 6 and four were simply made up by randomly selecting words from a dictionary.(More)
This study investigated the feasibility of a prerecorded speech threshold procedure that was used in a picture-pointing format, and was administered to Spanish-speaking children by non-Spanish-speaking clinicians. The derived Spanish word list was compared for equivalency to English spondees on a group of bilingual adults. The test, administered to 16(More)
Since Martin and Sides (Asha, 1985, 27, 29-36) found that only 6% of audiologists reported actually following current ASHA guidelines for SRT testing (Asha, 1979, 21, 353-356), a comparison was made on 36 normal-hearing adults of spondee thresholds (ST) collected following strictly those guidelines (ST1) and by an experimental procedure based on the ASHA(More)
A picture-pointing speech discrimination test which can be efficiently administered by English-speaking clinicians to Spanish-speaking children was developed. The test consists of four lists of 25 bisyllabic words. Two syllable words were chosen as stimuli instead of the traditional monosyllabic words because of the limited number of concrete monosyllabic(More)