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Influence of ageing and educational level on the prevalence of body part as objects in normal subjects

par Peigneux, Philippe ;Van der Linden, Martial
Référence Neuropsychology, development, and cognition. Section A, Journal of clinical and experimental neuropsychology, 21, 4, page (547-552)
Publication Publié, 1999

Article révisé par les pairs

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Résumé :

When pantomiming gestures to verbal command, the overall production of body-part-as-object (BPO) errors is differentially affected by age and educational level in normal subjects. The higher overall frequency of BPO with age may be related to difficulties in the inhibition of the automatic activation of tool emblems (i.e., the BPO) instead of the appropriate hand posture to hold the tool. However, all subjects are equally able to correct errors in BPO on subsequent trials, which suggests the integrity of these gestural representations. In a clinical perspective, BPO data have therefore to be considered carefully when one wants to include this error type as an indicator of limb apraxia.