Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 5 of 5
Full-Text Articles in Medicine and Health Sciences
Aldosterone Treatment Protects Connexin 30 And 43 Expression For Age-Related Hearing Loss, Jennifer A. Pineros Valencia
Aldosterone Treatment Protects Connexin 30 And 43 Expression For Age-Related Hearing Loss, Jennifer A. Pineros Valencia
USF Tampa Graduate Theses and Dissertations
Age-related hearing loss (ARHL), also known as presbycusis, is the number one communication disorder affecting our aged population. Connexin proteins are essential for intercellular communication throughout the human body. Mutations in connexin genes have been linked to human syndromic and nonsyndromic deafness; thus, we hypothesize changes in connexin gene and protein expression with age may be involved in the development of ARHL. In our current study, connexin mRNA gene expression for CBA/CaJ mice at different age points were examined and correlations were analyzed between the changes in gene expression and functional hearing measures, such as ABRs and DPOAEs. Moreover, we …
Indicators Of Mild Cognitive Impairment Associated With Language Processing And Production, Diana Julbe-Delgado
Indicators Of Mild Cognitive Impairment Associated With Language Processing And Production, Diana Julbe-Delgado
USF Tampa Graduate Theses and Dissertations
The research purpose of the present study was to (1) examine cognitive-linguistic features related to processing and production across a series of tasks that are representative of everyday discourse and (2) compare older adults with and without mild cognitive impairment (MCI) across linguistic features. Twenty-seven participants, including 12 individuals with- and 15 individuals without MCI, were enrolled from a larger study (Hudak et al., 2019). Cognitive status was initially assessed as part of the larger study using the Montreal Cognitive Assessment (MoCA; Nasreddine et al., 2005). Participants who scored ≤ 25 on the MoCA received a standardized neuropsychological evaluation and …
Factors Related To Hearing Aid Use Among Older Adults From Hispanic/Latino Backgrounds: Findings From The Hispanic Community Health Study/Study Of Latinos, Michelle L. Arnold
Factors Related To Hearing Aid Use Among Older Adults From Hispanic/Latino Backgrounds: Findings From The Hispanic Community Health Study/Study Of Latinos, Michelle L. Arnold
USF Tampa Graduate Theses and Dissertations
The purpose of this dissertation was to understand perceived hearing loss and hearing health care use among older adults from Hispanic/Latino backgrounds using the Andersen model of health care utilization as a framework. A cross sectional analysis of audiometric and survey data from the Hispanic Community Health Study/Study of Latinos was used to estimate factors that characterize perceived hearing handicap and hearing aid use, and to determine hearing aid use rates in a large group of older Hispanic/Latino adults. Data came from 6970 adults aged 45 to 76. Results revealed that self-perceived hearing handicap is significantly correlated to measured hearing …
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 …
Semantic Feature Distinctiveness And Frequency, Katherine Marie Lamb
Semantic Feature Distinctiveness And Frequency, Katherine Marie Lamb
USF Tampa Graduate Theses and Dissertations
Lexical access is the process in which basic components of meaning in language, the lexical entries (words) are activated. This activation is based on the organization and representational structure of the lexical entries. Semantic features of words, which are the prominent semantic characteristics of a word concept, provide important information because they mediate semantic access to words. An experiment was conducted to examine the importance of semantic feature distinctiveness and feature frequency in accessing the lexical representations of young and older adults in an off-line task using features of animals. The McRae, Cree, Seidenberg, and McNorgan (2005) feature norm corpus …