Attentional modulation of implicit processing of information in spatial neglect

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Title: Attentional modulation of implicit processing of information in spatial neglect
Author(s): Danckert, James; Maruff, Paul; Kinsella, Glynda; de Graaff, Stephen; Currie, Jon
Abstract: Patients with parietal lesions often fail to identify stimuli in the contralesional field (i.e. neglect) but may nevertheless demonstrate implicit processing of neglected stimuli. Explanations of implicit processing in neglect range from intact preattentive mechanisms, to intact higher level categorical processing. Such theories assume implicit processing in neglect is passive and not subject to attentional modulation. We investigated implicit processing in a neglect patient (JS) using a flanker task in which targets differed on two dimensions simultaneously (i.e. coloured letters). Controls demonstrated interference effects only from goal-relevant dimensions of flankers. JS showed a similar pattern of results even when flankers appeared in his neglected field, suggesting that implicit processing of neglected stimuli can be modulated by behavioural goals.
Publication type: Journal article
Research centre: Swinburne University of Technology. School of Biophysical Sciences and Electrical Engineering
Source: NeuroReport, Vol. 10, no. 5 (Apr 1999), pp. 1077-1083
Publication year: 1999
FOR Code(s): 1109 Neurosciences; 1702 Cognitive Sciences
Keyword(s): Attention; Behavioural goals; Flanker task; Information processing; Neglect
Publisher: Lippincott Williams & Wilkins
ISSN: 0959-4965
Publisher URL: http://journals.lww.com/neuroreport/toc/1999/04060
Peer reviewed