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Titre : | Cognitive-Motor Interference Heightens the Prefrontal Cortical Activation and Deteriorates the Task Performance in Children With Hemiplegic Cerebral Palsy (2021) |
Auteurs : | Swati M. Surkar ; Rashelle M. Hoffman ; Regina Harbourne ; Max J. Kurz |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (Vol. 102, n° 2, 2020) |
Article en page(s) : | p. 225-232 |
Note générale : | https://doi.org/10.1016/j.apmr.2020.08.014 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Cognition ; Paralysie cérébrale ; Réadaptation |
Résumé : |
Objective
To compare the prefrontal cortex (PFC) activation and task performance during single- and dual-task conditions between typically developing (TD) children and children with hemiplegic cerebral palsy (HCP). Design A prospective, comparative design. Setting Research laboratory. Participants Participants (N=21) included 12 TD children (age, 6.0±1.1y) and 9 children with HCP (age, 7.2±3.1). Interventions Not applicable. Main Outcome Measures PFC activation was assessed by measuring the concentration of oxygenated hemoglobin while the children performed a shape-matching task with their more affected arm while sitting on a stable (single task) vs dynamic surface (dual task). The task performance was assessed with the total number of shapes matched, dual-task cost, and reaction time (RT). Results For both conditions, the children with HCP exhibited greater PFC activation, matched a fewer shapes, and had slower RT than the TD children. These differences were accentuated during the dual-task condition and the dual-task cost was greater. An increase in the PFC activation during the dual-task condition was tightly correlated with a higher dual-task cost in children with HCP (r=0.77, P=.01). Conclusions Children with HCP appear to have a heightened amount of PFC activity while performing a dual task. The greater cortical activity may be a result of the finite attentional resources that are shared between both the motor as well as cognitive demands of the task. The cognitive-motor interference is likely exacerbated in children with HCP because of the structural and functional brain changes as a result of an insult to the developing brain. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999320309564#! |