You are here

FAU Collections » FAU Research Repository » FAU Theses and Dissertations

THE EFFECT OF DUAL-TASK ON THE HUMAN EVOKED POTENTIAL ELICITED ON A PRIMARY TASK AND PERFORMANCE ON A NEAR-SIMULTANEOUS SECONDARY SIGNAL DETECTION TASK

Download pdf | Full Screen View

Date Issued:
1987
Summary:
The relationship between P300 elicited on a primary counting task and performance on a secondary signal detection task was examined in a dual-task paradigm in which the secondary task followed the primary task by 120 ms. An odd-ball paradigm, utilizing two auditory tones (Standard and Deviant) was employed as the primary counting task in order to elicit two states characterized by differences in P300 amplitudes. The standard trials were further categorized according to their serial position in each series of trials. A signal detection task in which an auditory tone followed the primary task tones on 50 percent of the trials served as the secondary task. The principal hypothesis was that a decrease in sensitivity on secondary signal detection task accompanied Deviant trials in which a P300 was elicited. Results were consistent with the hypothesis and provided support for both neural inhibition and cognitive resource allocation models.
Title: THE EFFECT OF DUAL-TASK ON THE HUMAN EVOKED POTENTIAL ELICITED ON A PRIMARY TASK AND PERFORMANCE ON A NEAR-SIMULTANEOUS SECONDARY SIGNAL DETECTION TASK.
80 views
21 downloads
Name(s): ODIERNA, LISA ANN.
Florida Atlantic University, Degree grantor
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Issuance: monographic
Date Issued: 1987
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 62 p.
Language(s): English
Summary: The relationship between P300 elicited on a primary counting task and performance on a secondary signal detection task was examined in a dual-task paradigm in which the secondary task followed the primary task by 120 ms. An odd-ball paradigm, utilizing two auditory tones (Standard and Deviant) was employed as the primary counting task in order to elicit two states characterized by differences in P300 amplitudes. The standard trials were further categorized according to their serial position in each series of trials. A signal detection task in which an auditory tone followed the primary task tones on 50 percent of the trials served as the secondary task. The principal hypothesis was that a decrease in sensitivity on secondary signal detection task accompanied Deviant trials in which a P300 was elicited. Results were consistent with the hypothesis and provided support for both neural inhibition and cognitive resource allocation models.
Identifier: 14352 (digitool), FADT14352 (IID), fau:11156 (fedora)
Note(s): Thesis (M.A.)--Florida Atlantic University, 1987.
Charles E. Schmidt College of Science
Subject(s): Signal detection (Psychology)
Evoked potentials (Electrophysiology)
Held by: Florida Atlantic University Libraries
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/14352
Sublocation: Digital Library
Use and Reproduction: Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.