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Psychiatric symptoms during different stages of neurodegenerative and neuroinflammatory diseases. AD = Alzheimer’s disease; bvFTD = Behavioral variant of fronto-temporal dementia; HD = Huntington’s disease; MS = Multiple sclerosis; PD = Parkinson’s disease; ICD = Impulse control disturbances; OCS = Obsessive-compulsive symptoms. - = Not reported; + = Prevalence <25%; ++ = Prevalence 25–50%; +++ = Prevalence >50%.
