Knowing how to do it or doing it? A double dissociation between tool-gesture production and tool-gesture knowledge.

Autor: Valério D; Proaction Laboratory, Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal; CINEICC, Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal., Santana I; Neurology Department and Dementia Clinic, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal; Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Coimbra, Portugal., Aguiar de Sousa D; Neurology Department, Hospital de Santa Maria, Lisbon, Portugal., Schu G; Proaction Laboratory, Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal; CINEICC, Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal., Leal G; Language Research Laboratory, Faculty of Medicine, University of Lisbon, Portugal., Pavão Martins I; Neurology Department, Hospital de Santa Maria, Lisbon, Portugal; Language Research Laboratory, Faculty of Medicine, University of Lisbon, Portugal., Almeida J; Proaction Laboratory, Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal; CINEICC, Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal. Electronic address: jorgecbalmeida@gmail.com.
Jazyk: angličtina
Zdroj: Cortex; a journal devoted to the study of the nervous system and behavior [Cortex] 2021 Aug; Vol. 141, pp. 449-464. Date of Electronic Publication: 2021 May 28.
DOI: 10.1016/j.cortex.2021.05.008
Abstrakt: Deciding how to manipulate an object to fulfill a goal requires accessing different types of object-related information. How these different types of information are integrated and represented in the brain is still an open question. Here, we focus on examining two types of object-related information-tool-gesture knowledge (i.e., how to manipulate an object), and tool-gesture production (i.e., the actual manipulation of an object). We show a double dissociation between tool-gesture knowledge and tool-gesture production: Patient FP presents problems in pantomiming tool use in the context of a spared ability to perform judgments about an object's manipulation, whereas Patient LS can pantomime tool use, but is impaired at performing manipulation judgments. Moreover, we compared the location of the lesions in FP and LS with those sustained by two classic ideomotor apraxic patients (IMA), using a cortical thickness approach. Patient FP presented lesions in common with our classic IMA that included the left inferior parietal lobule (IPL), and specifically the supramarginal gyrus, the left parietal operculum, the left premotor cortex and the left inferior frontal gyrus, whereas Patient LS and our classic IMA patients presented common lesions in regions of the superior parietal lobule (SPL), motor areas (as primary somatosensory cortex, premotor cortex and primary motor cortex), and frontal areas. Our results show that tool-gesture production and tool-gesture knowledge can be behaviorally and neurally doubly dissociated and put strong constraints on extant theories of action and object recognition and use.
Competing Interests: Declaration of competing interest The authors declare no competing interests.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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