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Multidirectional transpositions suggesting pathologic approach behavior after frontal stroke

From Stazione Climatica Bianchi (Drs. Lepore and Conson), Portici, Italy; and the Department of Psychology (Drs. Conson, Grossi, and Trojano), Second University of Naples, Caserta, Italy.

Address correspondence and reprint requests to Dr. Luigi Trojano, Department of Psychology, Second University of Naples, Via Vivaldi 43, 81100 Caserta, Italy; e-mail: luigi.trojano{at}unina2.it

The authors report a patient with a right frontal stroke who, despite the ability to draw clocks accurately from memory, translocated numbers on the inferior half of the dial to the superior half when copying a clock. In further graphic and verbal clock reproduction tasks, transpositions were always directed toward the model but disappeared in a delayed copying task. These findings appear to reflect an intentional disorder characterized by pathologic approach behavior.

Received October 27, 2004. Accepted in final form January 17, 2005.