The ‘healthy side’ of anosognosia for ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
The ‘healthy side’ of anosognosia for hemiplegia: Increased sense of agency for the unimpaired limb or motor compensation?
Auteur(s) :
Cocchini, Gianna [Auteur]
Department of Psychology [Goldsmiths University of London]
Scandola, Michele [Auteur]
Università degli studi di Verona = University of Verona [UNIVR]
Gobbetto, Valeria [Auteur]
Università degli studi di Verona = University of Verona [UNIVR]
Cioffi, Maria Cristina [Auteur]
Università degli studi di Verona = University of Verona [UNIVR]
Bartolo, Angela [Auteur]
Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193
Moore, James [Auteur]
Department of Psychology [Goldsmiths University of London]
Moro, Valentina [Auteur]
Università degli studi di Verona = University of Verona [UNIVR]
Department of Psychology [Goldsmiths University of London]
Scandola, Michele [Auteur]
Università degli studi di Verona = University of Verona [UNIVR]
Gobbetto, Valeria [Auteur]
Università degli studi di Verona = University of Verona [UNIVR]
Cioffi, Maria Cristina [Auteur]
Università degli studi di Verona = University of Verona [UNIVR]
Bartolo, Angela [Auteur]
Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193
Moore, James [Auteur]
Department of Psychology [Goldsmiths University of London]
Moro, Valentina [Auteur]
Università degli studi di Verona = University of Verona [UNIVR]
Titre de la revue :
Neuropsychologia
Nom court de la revue :
Neuropsychologia
Numéro :
177
Pagination :
108421
Éditeur :
Elsevier BV
Date de publication :
2022-12-15
ISSN :
0028-3932
Discipline(s) HAL :
Sciences cognitives
Résumé en anglais : [en]
Objectives
Anosognosic patients show a lack of awareness for their hemiplegia coupled with a distorted sense of agency for the actions performed by the plegic limbs. Since anosognosia is often associated with right brain ...
Lire la suite >Objectives Anosognosic patients show a lack of awareness for their hemiplegia coupled with a distorted sense of agency for the actions performed by the plegic limbs. Since anosognosia is often associated with right brain damage, this hemisphere seems to play a dominant role in monitoring awareness for motor actions. Therefore, we would expect that anosognosic patients show distorted awareness and sense of agency also for actions performed with the unimpaired limb. Method To test this hypothesis, we induced illusory actions that could be congruent or incongruent with a preceding verbal command. A group of 16 right brain-damaged patients performed this task and then rated i) their ability to anticipate the actions, ii) their sense of agency and iii) their sense of ownership for each limb. Measures of awareness, neglect and motor impairment were also considered for the patient group. Results Following incongruent actions with the unimpaired limb, less aware patients showed a relatively mild distortion in all three aspects. In addition, we also found a crucial relationship between motor impairment (for the plegic limb) and sense of agency for both plegic and healthy limbs. Conclusion Although the distortion linked to both limbs supports the initial hypothesis that the right hemisphere is responsible for monitoring awareness for action for the whole body, our data also suggest that the observed distortion may be linked to a motor compensatory phenomenon, not necessarily related to awareness processes.Lire moins >
Lire la suite >Objectives Anosognosic patients show a lack of awareness for their hemiplegia coupled with a distorted sense of agency for the actions performed by the plegic limbs. Since anosognosia is often associated with right brain damage, this hemisphere seems to play a dominant role in monitoring awareness for motor actions. Therefore, we would expect that anosognosic patients show distorted awareness and sense of agency also for actions performed with the unimpaired limb. Method To test this hypothesis, we induced illusory actions that could be congruent or incongruent with a preceding verbal command. A group of 16 right brain-damaged patients performed this task and then rated i) their ability to anticipate the actions, ii) their sense of agency and iii) their sense of ownership for each limb. Measures of awareness, neglect and motor impairment were also considered for the patient group. Results Following incongruent actions with the unimpaired limb, less aware patients showed a relatively mild distortion in all three aspects. In addition, we also found a crucial relationship between motor impairment (for the plegic limb) and sense of agency for both plegic and healthy limbs. Conclusion Although the distortion linked to both limbs supports the initial hypothesis that the right hemisphere is responsible for monitoring awareness for action for the whole body, our data also suggest that the observed distortion may be linked to a motor compensatory phenomenon, not necessarily related to awareness processes.Lire moins >
Langue :
Anglais
Audience :
Internationale
Établissement(s) :
Université de Lille
CNRS
CHU Lille
CNRS
CHU Lille
Date de dépôt :
2023-01-16T15:36:44Z
2023-01-18T07:11:27Z
2023-01-18T07:11:27Z
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