کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3061058 1187463 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel paradigm for modelling freezing of gait in Parkinson’s disease
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی عصب شناسی
پیش نمایش صفحه اول مقاله
A novel paradigm for modelling freezing of gait in Parkinson’s disease
چکیده انگلیسی

Freezing of gait (FOG) is a common cause of disability in Parkinson’s disease (PD) but its underlying pathophysiology is poorly understood. A recent hypothesis has proposed that FOG is related to a problem of set-shifting between motor, cognitive and limbic pathways. In this model, the functional convergence of these pathways on the output nuclei of the basal ganglia is believed to result in paroxysmal excessive inhibition of the thalamus and brainstem nuclei leading to freezing episodes. This hypothesis could be assessed with functional neuroimaging but would require a behavioural paradigm capable of modelling FOG. In this experiment, 12 patients with PD underwent assessment on a novel computer-based paradigm where they navigated a realistic three-dimensional environment in which cognitive and limbic load could be manipulated. Performance on this paradigm was significantly correlated with self-reported FOG symptoms assessed by a validated questionnaire. We believe this paradigm is capable of accurately modelling FOG and will have validity in future functional neuroimaging and therapeutic intervention studies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Clinical Neuroscience - Volume 17, Issue 8, August 2010, Pages 984–987
نویسندگان
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