東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Anterior cingulate cortex, medial fr...

Sutherland, Matthew Thomas.

Linked to FindBook

Google Book

Amazon

博客來

Anterior cingulate cortex, medial frontal negativity and preceding context: Assessing an EEG-based neural correlate of performance monitoring during a Stroop task.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Anterior cingulate cortex, medial frontal negativity and preceding context: Assessing an EEG-based neural correlate of performance monitoring during a Stroop task./
Author:	Sutherland, Matthew Thomas.
Description:	116 p.
Notes:	Adviser: Akaysha Tang.
Contained By:	Dissertation Abstracts International68-12B.
Subject:	Psychology, Experimental. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3295508
ISBN:	9780549402169

Anterior cingulate cortex, medial frontal negativity and preceding context: Assessing an EEG-based neural correlate of performance monitoring during a Stroop task.
Sutherland, Matthew Thomas.

Anterior cingulate cortex, medial frontal negativity and preceding context: Assessing an EEG-based neural correlate of performance monitoring during a Stroop task. - 116 p.

Adviser: Akaysha Tang.

Thesis (Ph.D.)--The University of New Mexico, 2007.

Flexible goal-directed behavior requires a system that is to adapt to changing task demands and contexts. Current models suggest that anterior cingulate cortex (ACC) activity may serve a performance monitoring function that tracks when behavior may deviate from desired goals. Frontal-midline EEG activity, particularly in the form of negative deflections in event-related brain potentials (ERPs), has been considered to reflect aspects of ACC functioning and performance monitoring. In the current study, a medial frontal negativity observed shortly after correct responses, termed the correct-related negativity (CRN), is assessed during performance of a uniquely modified Stroop color-identification task. In a Stroop task, the two dimensions of a stimulus can he either compatible (C) or incompatible (I) (C: the word "RED" in red hue; I: the word "RED" in blue hue). The reaction time difference between I and C trials (the interference effect) has been shown to depend upon the context in which the trial is delivered (e.g., the compatibility-level of the preceding trial). In the present task, context was manipulated not only by the compatibility-level of the preceding trial but also by the number of preceding-trials before an ending-trial of interest. EEG data were collected during task performance and processed with a blind source separation (BSS) algorithm to extract frontal-midline activity from other neural processes and artifactual signals. The CRN observed in the response-locked ERPs computed from frontal-midline component activations was found to be affected by the task contextual manipulations. The modulation of the CRN amplitude appeared to be inconsistent with expectations formulated from the conflict-monitoring hypothesis.

ISBN: 9780549402169Subjects--Topical Terms:

517106
Psychology, Experimental.

Anterior cingulate cortex, medial frontal negativity and preceding context: Assessing an EEG-based neural correlate of performance monitoring during a Stroop task.
LDR:02723nam 2200277 a 45 001 948628
005 20110524
008 110524s2007 ||||||||||||||||| ||eng d
020 $a 9780549402169
035 $a (UMI)AAI3295508
035 $a AAI3295508
040 $a UMI $c UMI
100 1 $a Sutherland, Matthew Thomas. $3 1272078
245 1 0 $a Anterior cingulate cortex, medial frontal negativity and preceding context: Assessing an EEG-based neural correlate of performance monitoring during a Stroop task.
300 $a 116 p.
500 $a Adviser: Akaysha Tang.
500 $a Source: Dissertation Abstracts International, Volume: 68-12, Section: B, page: 8434.
502 $a Thesis (Ph.D.)--The University of New Mexico, 2007.
520 $a Flexible goal-directed behavior requires a system that is to adapt to changing task demands and contexts. Current models suggest that anterior cingulate cortex (ACC) activity may serve a performance monitoring function that tracks when behavior may deviate from desired goals. Frontal-midline EEG activity, particularly in the form of negative deflections in event-related brain potentials (ERPs), has been considered to reflect aspects of ACC functioning and performance monitoring. In the current study, a medial frontal negativity observed shortly after correct responses, termed the correct-related negativity (CRN), is assessed during performance of a uniquely modified Stroop color-identification task. In a Stroop task, the two dimensions of a stimulus can he either compatible (C) or incompatible (I) (C: the word "RED" in red hue; I: the word "RED" in blue hue). The reaction time difference between I and C trials (the interference effect) has been shown to depend upon the context in which the trial is delivered (e.g., the compatibility-level of the preceding trial). In the present task, context was manipulated not only by the compatibility-level of the preceding trial but also by the number of preceding-trials before an ending-trial of interest. EEG data were collected during task performance and processed with a blind source separation (BSS) algorithm to extract frontal-midline activity from other neural processes and artifactual signals. The CRN observed in the response-locked ERPs computed from frontal-midline component activations was found to be affected by the task contextual manipulations. The modulation of the CRN amplitude appeared to be inconsistent with expectations formulated from the conflict-monitoring hypothesis.
590 $a School code: 0142.
650 4 $a Psychology, Experimental. $3 517106
650 4 $a Psychology, Psychobiology. $3 1017821
690 $a 0349
690 $a 0623
710 2 $a The University of New Mexico. $3 1018024
773 0 $t Dissertation Abstracts International $g 68-12B.
790 $a 0142
790 1 0 $a Tang, Akaysha, $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3295508