What symptoms are associated with mental disorders?

Aug 24, 2022 Source: Cainiu Health
Disease description:

My son is currently in puberty, and recently I’ve noticed that he talks less and prefers to be alone. My husband thinks he might be developing a psychological disorder—what symptoms are associated with psychological disorders?

Doctor's answer (1)
Dr. Shang Luning
Mental disorders include disturbances in perception, such as reduced sensation, hypersensitivity, or hallucinations, as well as perceptual integration disorders, such as spatial perception abnormalities and visual distortion. They also involve attentional disorders, such as distractibility and narrowed attention. Additionally, they may include affective disorders, disorders of will, or consciousness disturbances, such as emotional instability, increased volition, and somnolence.