Electroencephalographic measures of auditory perception in dynamic acoustic environments
McMullan, Amanda R.
Lethbridge, Alta. : University of Lethbridge, Dept. of Neuroscience, c2013
We are capable of effortlessly parsing a complex scene presented to us. In order to do this, we must segregate objects from each other and from the background. While this process has been extensively studied in vision science, it remains relatively less understood in auditory science. This thesis sought to characterize the neuroelectric correlates of auditory scene analysis using electroencephalography. Chapter 2 determined components evoked by first-order energy boundaries and second-order pitch boundaries. Chapter 3 determined components evoked by first-order and second-order discontinuous motion boundaries. Both of these chapters focused on analysis of event-related potential (ERP) waveforms and time-frequency analysis. In addition, these chapters investigated the contralateral nature of a negative ERP component. These results extend the current knowledge of auditory scene analysis by providing a starting point for discussing and characterizing first-order and second-order boundaries in an auditory scene.
x, 90 leaves : col. ill. ; 29 cm
Auditory scene analysis -- Research , Electroencephalography , Auditory perception -- Research , Dissertations, Academic