J 2011

The executive functions in frontal and in temporal cortices. A flanker task intracerebral recording study

RUSNÁKOVÁ, Štefánia, Pavel DANIEL, Jan CHLÁDEK, P. JURAK, Ivan REKTOR et. al.

Basic information

Original name

The executive functions in frontal and in temporal cortices. A flanker task intracerebral recording study

Authors

RUSNÁKOVÁ, Štefánia (703 Slovakia, guarantor, belonging to the institution), Pavel DANIEL (203 Czech Republic, belonging to the institution), Jan CHLÁDEK (203 Czech Republic, belonging to the institution), P. JURAK (203 Czech Republic) and Ivan REKTOR (203 Czech Republic, belonging to the institution)

Edition

Journal of Clinical Neurophysiology, 2011, 0736-0258

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30000 3. Medical and Health Sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.451

RIV identification code

RIV/00216224:14110/11:00052312

Organization unit

Faculty of Medicine

DOI

UT WoS

000286875700005

Keywords in English

generator of P3; temporal neocortex; orbitofrontal cortex; flanker test; neurocognitive network

Tags

International impact
Změněno: 20/4/2012 11:57, Mgr. Michal Petr

Abstract

V originále

The occurrence of the local generators of P3 like potentials, elicited by a noise-compatibility flanker test was used in order to study the processing of executive functions, particularly in the frontal and temporal cortices. The test performed with arrows comprised a simpler congruent and a more difficult incongruent task.The two tasks activated the attention and several particular executive functions i.e. working memory, time perception, initiation and motor control of executed task. The incongruent task increased demand on executive functions, and beside the functions common for both tasks, an inhibition of automatic responses, the reversal of incorrect response tendency, the internal ordering of the correct response and the initiation of the target-induced correct response was involved. In seven epilepsy surgery candidates (4 males and 3 females), ranging in age from 26 to 38 years, multi-contact depth electrodes were implanted in 590 cortical sites. In the two tasks, the P3 like potential sources were displayed in the mesial temporal structures; the lateral temporal neocortex; the anterior and posterior cingulate; the orbitofrontal cortex and dorsolateral prefrontal cortex. The P3 like potentials occurred more frequently with the inocongruent than with congruent stimuli in all these areas. This more frequent occurrence of P3 sources elicited by the incongruent task appeared significant in temporal lateral neocortex and orbitofrontal cortex. The executive functions are processed in a widespread frontotemporal neurocognitive network. The present study confirms the involvement of the temporal neocortex in the executive functions.