Application of AI Technology for the Diagnosis and Treatment of Geriatric Diseases
1) Characteristics of handwriting, gait, speech, eye movements, biological samples (blood, urine, stool, saliva, etc.), images, EEG, and other relevant markers in patients with Alzheimer's disease.

(2) Characteristics of handwriting, gait, language, eye movement, biological samples (blood, urine, stool, saliva, etc.), imaging, EEG, and other relevant markers in patients with Parkinson's disease.

(3) Characteristics of handwriting, gait, language, eye movement, biological samples (blood, urine, stool, saliva, etc.), images, EEG, and other relevant markers in patients with other neurological disorders.

(4) Characteristics of handwriting, gait, language, eye movement, biological samples (blood, urine, stool, saliva, etc.), images, EEG and other relevant markers in elderly patients.
- EligibilityCriteria: Inclusion Criteria 1.1 A total of 100 patients with primary Parkinson's disease were enrolled. The inclusion criteria were as follows: patients with primary Parkinson's disease, based on the 2015 MDS diagnostic criteria for Parkinson's disease. Disorder (MMSE score < 24); (3) those with severe mental illness who are difficult to cooperate.  1.2 A total of 100 patients with Alzheimer's disease were enrolled. The inclusion criteria were as follows: patients with Alzheimer's disease, based on the IWG-2 clinical diagnostic criteria.  1.3 Neurodegenerative diseases (non-PD and non-AD) group (n = 100) : meeting the diagnostic criteria of the corresponding diseases.  1.4 Eighty healthy elderly controls were included. The inclusion criteria were as follows: ① voluntarily participated in this study and signed the informed consent; ② Age and gender were matched with the case group.  1.5 80 young healthy controls, inclusion criteria: ① voluntarily participated in this study and signed the informed consent; ② Gender was matched with the case group, and the age was less than 60 years old.  Exclusion Criteria 2.1 A total of 100 patients with PD were enrolled. Exclusion criteria: ① patients with other central nervous system diseases, such as cerebrovascular diseases, brain trauma, inflammatory diseases of the central system, intracranial tumors and after neurosurgery; ② patients with various types of cognitive impairment (MMSE score < 24); (3) those with severe mental illness who are difficult to cooperate.  2.2 A total of 100 patients with Alzheimer's disease were enrolled. The exclusion criteria were: ① patients with other central nervous system diseases, such as cerebrovascular diseases, brain trauma, central system inflammatory diseases, intracranial tumors and after neurosurgery; ② patients with severe mental illness who are difficult to cooperate.  2.3 Neurodegenerative diseases (non-PD non-AD) group (n = 100), exclusion criteria: ① patients with other central nervous system diseases, such as cerebrovascular diseases, brain trauma, central system inflammatory diseases, intracranial tumors and after neurosurgery; ② patients with severe mental illness who are difficult to cooperate.  2.4 Eighty healthy elderly controls were included. The exclusion criteria were as follows: ① History of chronic diseases related to the study subjects, such as cerebrovascular diseases, brain trauma, inflammatory diseases of the central system, intracranial tumors and neurosurgery; ② patients with various types of cognitive impairment (MMSE score < 24); ③ Poor compliance.  2.5 80 young healthy controls, exclusion criteria: ① history of chronic diseases related to the study subjects, such as cerebrovascular diseases, brain trauma, inflammatory diseases of the central system, intracranial tumors and neurosurgical surgery; ② patients with various types of cognitive impairment (MMSE score < 24); ③ Poor compliance. - HealthyVolunteers: Accepts Healthy Volunteers - Gender: All - MinimumAge: 8 Years - MaximumAge: 100 Years - StdAgeList: Child, Adult, Older Adult - StudyPopulation: 100 patients with primary Parkinson's disease were included, mainly from the outpatient clinics and wards of the Parkinson's Disease and Movement Disorders Center. Inclusion criteria: patients with primary Parkinson's disease, based on the 2015 MDS Parkinson's disease diagnostic criteria. 100 patients with Alzheimer's disease were included, mainly from geriatric neurology outpatient clinics and wards (F5A&F6A). Inclusion criteria: patients with Alzheimer's disease, meeting the IWG-2 clinical diagnostic criteria as the basis. Neurodegenerative diseases (non-PD and non-AD) group 100 people: the source of neurology outpatient clinic 80 healthy elderly controls, from peer attendees and health check centers. 80 young healthy controls, from peer clinic attendees and health screening centers. - SamplingMethod: Probability Sample