Universität zu Köln

Nitschke, Kai ORCID: 0000-0003-2845-7590, Ruh, Nina, Kappler, Sonja, Stahl, Christoph ORCID: 0000-0002-9033-894X and Kaller, Christoph P. (2012). Dissociable stages of problem solving (I): Temporal characteristics revealed by eye-movement analyses. Brain Cogn., 80 (1). S. 160 - 170. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 1090-2147

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Abstract

Understanding the functional neuroanatomy of planning and problem solving may substantially benefit from better insight into the chronology of the cognitive processes involved. Based on the assumption that regularities in cognitive processing are reflected in overtly observable eye-movement patterns, here we recorded eye movements while participants worked on Tower of London (TOL) problems that comprised an experimental manipulation of different task demands. Single-trial saccade-locked analyses revealed that higher demands on forming an internal problem representation were associated with an increased number of gaze alternations between start state and goal state, but did not show any effect on the durations of these inspections of the states. In contrast, higher demands on actual planning in terms of mental manipulations of working memory contents coincided with a prolonged duration of the very last inspection of the start state (i.e., immediately preceding movement execution) but did not show any effect on the number of gaze alterations. Differential task demands on internalization and planning processes during problem solving hence selectively affect different eye-movement parameters. Moreover, these findings complement previous neuroimaging data on dissociable contributions of left and right dorsolateral prefrontal cortex in problem solving with novel evidence for a corresponding dissociation in the eye-movement patterns reflecting the associated cognitive processes. (C) 2012 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Nitschke, Kai UNSPECIFIED orcid.org/0000-0003-2845-7590 UNSPECIFIED Ruh, Nina UNSPECIFIED UNSPECIFIED UNSPECIFIED Kappler, Sonja UNSPECIFIED UNSPECIFIED UNSPECIFIED Stahl, Christoph UNSPECIFIED orcid.org/0000-0002-9033-894X UNSPECIFIED Kaller, Christoph P. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-482710
DOI:	10.1016/j.bandc.2012.05.003
Journal or Publication Title:	Brain Cogn.
Volume:	80
Number:	1
Page Range:	S. 160 - 170
Date:	2012
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	1090-2147
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language WORKING-MEMORY; GAZE STRATEGIES; TOWER; LONDON; TASK; PERFORMANCE; INSIGHTS; IMPACT; MODEL Multiple languages Neurosciences; Psychology, Experimental Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/48271