Universität zu Köln

Roy, Lucia B., Sparing, Roland, Fink, Gereon R. ORCID: 0000-0002-8230-1856 and Hesse, Maike D. (2015). Modulation of attention functions by anodal tDCS on right PPC. Neuropsychologia, 74. S. 96 - 108. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 1873-3514

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Abstract

Attention is a complex construct that comprises at least three major subcomponents: alerting, spatial (re)orienting, and executive functions, all of which have specific neural correlates along frontoparietal networks. Attention deficits are a common consequence of brain damage. Transcranial direct current stimulation (tDCS) has been shown to modulate spatial attention. We investigated whether tDCS of different stimulation targets differentially modulates alerting, spatial (re-)orienting, and executive functions. Twenty-four healthy participants were included in this randomized, double-blinded study, which employed a within-subject design. On four different days, the effects of 1.5 mA anodal tDCS (real and sham) on the left dorsolateral (EEG 10-20 point F3), left parietal (P3) and right parietal cortex (P4) were assessed using a modified attention network test. tDCS of the right parietal cortex enhanced spatial re-orienting, while tDCS of the other cortical targets did not modulate the assessed attention functions. With regard to visual field asymmetries in attentional processing, right parietal tDCS selectively enhanced mean network efficiency for targets presented in the contralateral left visual field. The observed visual field specific tDCS effects on reorienting suggest that systematic investigations into novel approaches for the treatment of patients suffering from spatial neglect patients are warranted. (C) 2015 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Roy, Lucia B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sparing, Roland UNSPECIFIED UNSPECIFIED UNSPECIFIED Fink, Gereon R. UNSPECIFIED orcid.org/0000-0002-8230-1856 UNSPECIFIED Hesse, Maike D. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-400559
DOI:	10.1016/j.neuropsychologia.2015.02.028
Journal or Publication Title:	Neuropsychologia
Volume:	74
Page Range:	S. 96 - 108
Date:	2015
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	1873-3514
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DIRECT-CURRENT STIMULATION; NONINVASIVE BRAIN-STIMULATION; TRANSCRANIAL MAGNETIC STIMULATION; LINE BISECTION JUDGMENTS; HUMAN MOTOR CORTEX; PREFRONTAL CORTEX; PARIETAL CORTEX; WORKING-MEMORY; VISUOSPATIAL ATTENTION; CORTICAL STIMULATION Multiple languages Behavioral Sciences; Neurosciences; Psychology, Experimental Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/40055