English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Differential demands on working memory for guiding a simple action sequence: Evidence from closed-head-injured subjects

Bublak, P., Schubert, T., Matthes-von Cramon, G., & von Cramon, D. Y. (2000). Differential demands on working memory for guiding a simple action sequence: Evidence from closed-head-injured subjects. Journal of Clinical and Experimental Neuropsychology, 22(2), 176-190. doi:10.1076/1380-3395(200004)22:2;1-1;FT176.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-AB67-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-7DD1-7
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Bublak, Peter1, Author              
Schubert, Torsten1, Author              
Matthes-von Cramon, Gabi1, Author              
von Cramon, D. Yves1, Author              
Affiliations:
1MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              

Content

show
hide
Free keywords: -
 Abstract: In the present study, a working memory paradigm was used to assess coordinative abilities required for the flexible control of a sequence of actions. Subjects had to maintain and recall a list of digits that functioned as an ensemble of activity cues used for guiding a sequence of forced-choice responses. In three task conditions, the demand on the selection of the activity cues was varied parametrically to manipulate the requirement of coordinating maintenance and processing operations of working memory for guiding the response sequences. A comparison between subjects suffering from severe closed head injury (CHI) and matched controls in a blocked presentation of task conditions revealed that patients, in contrast to controls, did not preplan the sequence by rearranging the ensemble of activity cues prior to execution of the action sequence. Patients' performance was more comparable to controls tested in a random presentation in which preplanning was not possible. Our results further suggest that patients are less efficient in selecting activity cues from working memory, especially in more demanding situations when activity cues have to be completely reordered for guiding a sequence of actions. These results point to an executive dysfunction in CHI subjects that may contribute to the deficits known as inflexible and rigid behavior.

Details

show
hide
Language(s): eng - English
 Dates: 2000
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 239595
ISI: 000086838300002
Other: P6989
DOI: 10.1076/1380-3395(200004)22:2;1-1;FT176
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Clinical and Experimental Neuropsychology
  Other : J. Clin. Exp. Neuropsychol.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Lisse, Netherlands : Swets & Zeitlinger
Pages: - Volume / Issue: 22 (2) Sequence Number: - Start / End Page: 176 - 190 Identifier: ISSN: 1380-3395
CoNE: /journals/resource/954927621088