Explicit versus Implicit Processing of Representational Space in Neglect: Dissociations in Accessing the Mental Number Line | Zendy

Konstantinos Priftis | Zendy; Marco Zorzi | Zendy; Francesca Meneghello | Zendy; Roberto Marenzi | Zendy; Carlo Umiltà | Zendy

Open Access

Explicit versus Implicit Processing of Representational Space in Neglect: Dissociations in Accessing the Mental Number Line

Author(s) -

Konstantinos Priftis,

Marco Zorzi,

Francesca Meneghello,

Roberto Marenzi,

Carlo Umiltà

Publication year - 2006

Publication title -

journal of cognitive neuroscience

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.597

H-Index - 214

eISSN - 1530-8898

pISSN - 0898-929X

DOI - 10.1162/jocn.2006.18.4.680

Subject(s) - psychology , bisection , neglect , hemispatial neglect , dissociation (chemistry) , cognitive psychology , cognition , association (psychology) , task (project management) , numerical cognition , developmental psychology , neuroscience , mathematics , psychiatry , geometry , management , chemistry , economics , psychotherapist

The present study investigated the effects of left hemispatial neglect on two tasks activating the mental number line (MNL). Six patients with left neglect performed a mental number bisection task and a modified version of the Spatial Numerical Association of Response Codes (SNARC) task. Effects of left neglect were observed in the number bisection task, but not in the SNARC task. We argue that the dissociation between number bisection and SNARC resembles, in the representational space of the MNL, previously reported dissociations on neglect between explicit knowledge (assessed by direct tasks) and implicit knowledge (assessed by indirect tasks).

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