Medicine and Health Sciences Commons^™

Auditory Perception And Neural Encoding Of Spectral Modulation, Sittiprapa Isarangura

USF Tampa Graduate Theses and Dissertations

Most natural acoustic sounds consist of multiple frequencies. An important auditory perceptual ability to resolve such acoustic properties is referred to as spectral processing and includes frequency resolution, frequency selectivity and spectral envelope perception. Frequency resolution, as demonstrated by masking techniques, indicates that our auditory system functions as an auditory filter bank with overlapping bandpass filters. These filters allow for the effective separation of sounds into different frequency bands or channels. Acoustic components that fall within a given filter or passband are considered to be processed “within channel” and are perceptually resolved using “local” spectral cues, whereas components in different …

Attention Demands Of Language Production In Adults Who Stutter, Nathan D. Maxfield, Wendy L. Olsen, Daniel Kleinman, Stefan A. Frisch, Victor S. Ferreira, Jennifer J. Lister

Communication Sciences and Disorders Faculty Publications

Objective: We investigated whether language production is atypically resource-demanding in adults who stutter (AWS) versus typically-fluent adults (TFA).

Methods: Fifteen TFA and 15 AWS named pictures overlaid with printed Semantic, Phonological or Unrelated Distractor words while monitoring frequent low tones versus rare high tones. Tones were presented at a short or long Stimulus Onset Asynchrony (SOA) relative to picture onset. Group, Tone Type, Tone SOA and Distractor Type effects on P3 amplitudes were the main focus. P3 amplitude was also investigated separately in a simple tone oddball task.

Results: P3 morphology was similar between groups in the simple task. In …