In view of the fact that patients diagnosed with delayed maturation of the auditory pathway who experience delayed language acquisition but who have normal
auditory thresholds are generally considered to have a good prognosis, we believe that they usually receive less attention than they should from physicians and psychologists.
If surgical removal of the glomus had led to a worsening
auditory threshold of the left ear, a conventional or semi-implantable hearing aid would have been recommended.
Subsequently,
auditory thresholds were investigated and Speech Recognition Percentage Index (SRPI) with figures, in an acoustically treated room, at loudspeaker, in a free field system for both groups.
No latency differences between ears are expected in patients with bilaterally normal
auditory thresholds. Recordings of this potential may be clinically analyzed according to a number of parameters:
Jastreboff, "Salicylate-induced changes in
auditory thresholds of adolescent and adult rats," Developmental Psychobiology, vol.
Thus, for each participating elerly individual we have one number for the average
auditory threshold, and one for SRPI.
Table 1 shows the mean and SD of the participants'
auditory threshold (in dB HL).
It is used for newborn hearing screening,
auditory threshold estimation, determining hearing loss type, intraoperative monitoring.
(a) Pure Tone Audiometry recorded one day after hearing loss onset showing a moderate sensorineural hearing loss in the right ear with an average
auditory threshold of 49.54 dB HL and normal hearing threshold in the left side.
It was observed that the
auditory threshold in different age group among cases and control clearly shows that the maximum threshold level was in cases when compared to control.
Auditory threshold levels of the study group (mIESC + culture medium) and the control group (culture medium only) to pure tone (16 kHz) stimuli before surgery and at 2 weeks after transplantation.
Egermann and Kopiez focus on auditory subliminal messages and claim that there are five ways to embed worded messages in music: (i) the target words or messages are placed in the music below the
auditory threshold; (ii) it is possible to use words with an inverted time-structure and mix them above the perceptual threshold; (iii) backward-masked messages can also be used subliminally; (iv) highpass-filtered worded messages (containing frequencies above 15 kHz) can be used; and (v) time-shrunk subliminal messages (played back twice as fast as recorded) can be hidden in the music.