. Portable actigraph units allow to long-term of monitoring human cycles and can also be used to quantify the symp-toms of various diseases. The authors studied some applications of actigraphy as analytical methods that are sufficiently sensitive and reliable to determine the severity and consequences of neurological disorders, such as restless legs syndrome, periodic limb movements in sleep, sleep disorders, Parkinson´s disease, depression, behavioural and psychological symptoms in vascular dementia, seasonal affective disorders and acute ischemia of the brain, and the effects of clinical interventions used to treat them. Further research should develop analytical methods to assess other neurological diseases by actigraphic registration.
actigraphy, quantitative assessment of severity, neurological disorders, movement disorders.
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