Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
Parkinson’s disease

a neurodegenerative disease characterised by shaking, a stiffness and slowness of movement whose initial causes remain unknown. It is the most frequent neurodegenerative disease as it affects 1% of the population aged over 50. It is described as a degeneration of the nerve cells of the central grey core (substantia nigra) and brings about a deficiency of dopamine secretion (see also the article ‘Dopamine at the service of movement’).

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