Title page for ETD etd-02132009-171704


Type of Document Dissertation
Author Knebel, Timothy F.
URN etd-02132009-171704
Title Event-related potentials during auditory discrimination :attentional and intentional effects
Degree PhD
Department Psychology
Advisory Committee
Advisor Name Title
Crawford, Helen J. Committee Chair
Beex, A. A. Louis Committee Member
Harrison, David W. Committee Member
Lickliter, Robert E. Committee Member
Prestrude, Albert M. Committee Member
Pribram, Karl H. Committee Member
Keywords
  • intention
  • attention
Date of Defense 1995-05-05
Availability restricted
Abstract

The purpose of this dissertation study was to assess the neurophysiological activity associated with selective attention, response selection, and response inhibition. The subjects were 27 right-handed college students, 14 men and 13 women, aged 18-21. They performed a go/no-go auditory discrimination task while EEG was recorded from 19 monopolar electrode sites and averaged for evoked potentials. Amplitudes and latencies were measured for four event-related potentials (N1, P2, N2, and P3) at three midline electrode sites (Fz, Cz, pz) and eight bilateral sites (Fp1, Fp2, F3, F4, C3, C4, P3, P4).

Measures from the midline and bilateral sites were subjected to separate repeated measures ANOVAs for within subjects factors of condition (go and no-go), region (prefrontal, frontal, central, and parietal), and hemisphere (left and right). Grand averages and topographic isopotential maps were generated for each component and condition.

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