Alzheimer Disease 1 Alzheimer disease 1 Apathy 1 Article 1 Biomarkers 1 Humans 1 ISTAART neuropsychiatric syndromes professional interest area 1 Neurocognitive Disorders agomelatine 1 amfebutamone 1 amyloid beta protein 1 antidepressant agent 1 apathy 1 art therapy 1 assessment 1 atypical antipsychotic agent 1 behavior therapy 1 biological marker 1 brain atrophy 1 brain cortex 1 cholinesterase inhibitor 1 clinical assessment 1 clinical effectiveness 1 clinical trial (topic) 1 cognition 1 cognitive behavioral therapy 1 dementia 1 depression 1 diagnostic procedure 1 disorders of higher cerebral function 1