BRAIN CORRELATES OF THE INCREASING WORKING MEMORY LOAD - AN FMRI STUDY

• Authors: Binder M. , Sobiecka B. , Kozub J.
• Languages of publication: PL

Abstracts

EN

The aim of the study was identification of the functional anatomy of the cerebral regions, whose activity correlates with increasing working memory load, irrespective of the stimulus type. To address this problem, the authors used a version of the n-back task with two levels of difficulty (2-back and 3-back) and two types of memory stimuli: letters and colorful abstract patterns. Brain activity was measured with functional MRI. The resulting statistical maps showed four cortical regions, whose activity was significantly higher during performance of 3-back tasks than during performance of 2-back tasks. These areas included dorso-lateral prefrontal cortex, representing continuous updating of working memory; anterior cingulate - region responsible for conflict monitoring. Two remaining regions were located within the left parietal lobe and their activity represented frontally controlled attentional bias (precuneus) and the passive storage of phonological information (supramarginal gyrus).

Keywords

EN

N-BACK TASK; NEURAL CORELLATES OF WORKING MEMORY; PREFRONTAL CORTEX

Discipline

• PSYCHOLOGY: PSYCHOLOGY

• Publisher: Committee on Psychological Sciences PAS, Warsaw School of Social Psychology
• Journal: Psychological Studies
• Year: 2005
• Volume: 43
• Issue: 1
• Pages: 17-28
• Document type: ARTICLE

Contributors

author

Binder M.

author

Sobiecka B.

author

Kozub J.

• M. Binder, Uniwersytet Jagiellonski, Instytut Psychologii, al. Mickiewicza 3, 31-120 Kraków, Poland

Identifiers

CEJSH db identifier

05PLAAAA00481206