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Full-Text Articles in Speech and Hearing Science
The Directional Effect Of Target Position On Spatial Selective Auditory Attention, Heesung Park
The Directional Effect Of Target Position On Spatial Selective Auditory Attention, Heesung Park
Dissertations, 2020-current
Spatial selective auditory attention plays a crucial role in listening in a mixture of competing speech sounds. Previous neuroimaging studies have reported alpha band neural activity modulated by auditory attention, along with the alpha lateralization corresponding to attentional focus. A greater cortical representation of the attended speech envelope compared to the ignored speech envelope was also found, a phenomenon known as 'neural speech tracking’. However, little is known about the neural activities when attentional focus is directed on speech sounds from behind the listener, even though understanding speech from behind is a common and essential aspect of daily life. The …
Age-Related Decline In Neural Synchrony And The Ffr, Haley Szabo
Age-Related Decline In Neural Synchrony And The Ffr, Haley Szabo
Dissertations, 2020-current
It is a known phenomenon that speech understanding in background noise declines with advancing age. Although there is ample evidence of behavioral measures declining with age, there is less physiologic evidence. This study hypothesizes that the FFR will be degraded with advancing age, consistent with poorer phase locking. This is hypothesized to be present even in people with audiograms within normal limits. A second hypothesis is that middle-aged adults will have degraded neural representation as frequency increases, compared to a younger normal hearing group which will have better high frequency neural representation than the middle-aged group. Subjects were divided into …