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Full-Text Articles in Medicine and Health Sciences
Hearing Aid Acclimatization In The Context Of Central Gain Mechanisms, Peter J. Hutchison
Hearing Aid Acclimatization In The Context Of Central Gain Mechanisms, Peter J. Hutchison
USF Tampa Graduate Theses and Dissertations
The primary goals of this dissertation were to 1) identify markers of central gain in the auditory system following short-term acoustic attenuation via earplugging and acoustic enhancement via sound generators, and 2) determine if acoustic enhancement is effective in modulating central gain in older adults with age-related hearing loss, and if so, to what extent. Additionally, a further goal of this dissertation was to explore the possibility that central gain is related hearing aid acclimatization. The results described in Chapter 2 are further evidence that altering acoustic input to the peripheral auditory system modulates central auditory plasticity and is evident …
Large Cross-Sectional Study Of Presbycusis Reveals Rapid Progressive Decline In Auditory Temporal Acuity, Erol J. Ozmeral, Ann C. Eddins, Robert Frisina Sr., David A. Eddins
Large Cross-Sectional Study Of Presbycusis Reveals Rapid Progressive Decline In Auditory Temporal Acuity, Erol J. Ozmeral, Ann C. Eddins, Robert Frisina Sr., David A. Eddins
Communication Sciences and Disorders Faculty Publications
The auditory system relies on extraordinarily precise timing cues for the accurate perception of speech, music, and object identification. Epidemiological research has documented the age-related progressive decline in hearing sensitivity that is known to be a major health concern for the elderly. Although smaller investigations indicate that auditory temporal processing also declines with age, such measures have not been included in larger studies. Temporal gap detection thresholds (TGDTs; an index of auditory temporal resolution) measured in 1071 listeners (aged 18–98 years) were shown to decline at a minimum rate of 1.05 ms (15%) per decade. Age was a significant predictor …
Word Recognition In Noise Among Young And Older Listeners: A Combined Behavioral And Electrophysiological Study, Victoria Ann Williams-Sanchez
Word Recognition In Noise Among Young And Older Listeners: A Combined Behavioral And Electrophysiological Study, Victoria Ann Williams-Sanchez
USF Tampa Graduate Theses and Dissertations
Word recognition is based on the complex interplay of bottom up processing of acoustic input and corresponding top-down processing based on linguistic redundancies (i.e., contextual cues). Friedrich and Kotz (2007) investigated the timeline of integrating top-down and bottom-up processes among young adults with normal hearing using sentences presented in quiet. As a follow-up study, also with young adults with normal hearing (Experiment 1 of this dissertation), we used sentences embedded in multi-talker background noise and found similar results to Friedrich and Kotz (2007); but, with the use of principal component analysis (PCA) unveiled additional effects of phonological and semantic integration …