A functional limitation to the lower limbs affects the neural bases of motor imagery of gait
| العنوان: | A functional limitation to the lower limbs affects the neural bases of motor imagery of gait |
|---|---|
| المؤلفون: | Alberto Zerbi, Matteo Preti, Catia Pelosi, Lucia Maria Sacheli, Carlo De Santis, Nicola Ursino, Giuseppe Banfi, Laura Zapparoli, Eraldo Paulesu, Elena Stucovitz |
| المساهمون: | Sacheli, Lucia Maria, Zapparoli, Laura, Preti, Matteo, De Santis, Carlo, Pelosi, Catia, Ursino, Nicola, Zerbi, Alberto, Stucovitz, Elena, Banfi, Giuseppe, Paulesu, Eraldo, Sacheli, L, Zapparoli, L, Preti, M, De Santis, C, Pelosi, C, Ursino, N, Zerbi, A, Stucovitz, E, Banfi, G, Paulesu, E |
| المصدر: | NeuroImage : Clinical NeuroImage: Clinical, Vol 20, Iss, Pp 177-187 (2018) |
| بيانات النشر: | Elsevier Inc., 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Male, Radiology, Nuclear Medicine and Imaging, Neurology, lcsh:RC346-429, 0302 clinical medicine, Musculoskeletal disorder, Gait (human), Motor imagery, Mental chronometry, GI, Gait Imagery, Gait, 05 social sciences, fMRI, Brain, Regular Article, Middle Aged, Magnetic Resonance Imaging, Lower Extremity, Imagination, lcsh:R858-859.7, Female, Psychology, Human, medicine.medical_specialty, Isochrony, Movement, Cognitive Neuroscience, Cognitive neuroscience, lcsh:Computer applications to medicine. Medical informatics, Orthopaedic patient, 050105 experimental psychology, 03 medical and health sciences, Physical medicine and rehabilitation, medicine, Humans, 0501 psychology and cognitive sciences, Cognitive rehabilitation therapy, Mobility Limitation, lcsh:Neurology. Diseases of the nervous system, Aged, DGI, Dynamic Gait Imagery, Orthopaedic patients, medicine.disease, Neurology (clinical), human activities, 030217 neurology & neurosurgery, Photic Stimulation, Psychomotor Performance |
| الوصف: | Studies on athletes or neurological patients with motor disorders have shown a close link between motor experience and motor imagery skills. Here we evaluated whether a functional limitation due to a musculoskeletal disorder has an impact on the ability to mentally rehearse the motor patterns of walking, an overlearned and highly automatic behaviour. We assessed the behavioural performance (measured through mental chronometry tasks) and the neural signatures of motor imagery of gait in patients with chronic knee arthrosis and in age-matched, healthy controls. During fMRI, participants observed (i) stationary or (ii) moving videos of a path in a park shown in the first-person perspective: they were asked to imagine themselves (i) standing on or (ii) walking along the path, as if the camera were “their own eyes” (gait imagery (GI) task). In half of the trials, participants performed a dynamic gait imagery (DGI) task by combining foot movements with GI. Behavioural tests revealed a lower degree of isochrony between imagined and performed walking in the patients, indicating impairment in the ability to mentally rehearse gait motor patterns. Moreover, fMRI showed widespread hypoactivation during GI in motor planning (premotor and parietal) brain regions, the brainstem, and the cerebellum. Crucially, the performance of DGI had a modulatory effect on the patients and enhanced activation of the posterior parietal, brainstem, and cerebellar regions that the healthy controls recruited during the GI task. These findings show that functional limitations of peripheral origin may impact on gait motor representations, providing a rationale for cognitive rehabilitation protocols in patients with gait disorders of orthopaedic nature. The DGI task may be a suitable tool in this respect. Highlights • Patients with chronic knee arthrosis show impairment in gait motor imagery • Impairment is selective for gait and paralleled by hypoactivation in premotor areas • Peripheral limitation of lower limb movements affects central gait motor control • Dynamic motor imagery favours the recruitment of a motor strategy during imagery • Mental motor training might help to restore gait control in orthopaedic patients |
| اللغة: | English |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::033be12bfe87f9f33959beb89c0c4902Test http://www.journals.elsevier.com/neuroimage-clinicalTest/ |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....033be12bfe87f9f33959beb89c0c4902 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |