Schedules for Clinical Assessment in Neuropsychiatry (SCAN) is a set of tools created by WHO aimed at diagnosing and measuring mental illness that may occur in adult life.
Section 2 is primarily centered on somatoform and dissociative symptoms and is rated both by using direct questions and by observing the patient.
Section 7 measures cognitive functioning through direct questions about concentration, loss of interests or drive, and being overwhelmed by everyday tasks.
Section 10 measures whether the respondent experiences euphoria or abnormally elevated mood (mania), which can be used in diagnosing, for instance, bipolar disorders.
These may present themselves by the respondents stating to have experiences of their surroundings being distorted, or unreal (derealization), or that they themselves are not real, but more like characters in a play (depersonalization).
In this section, the respondent is asked about the experience of hallucinations, be they visual, auditory (verbal or non-verbal), olfactory, tactile, or sexual.
This section consists of a series of tests to be conducted by the respondent to establish the presence of cognitive impairment such as dementia.
This includes testing the respondents' ability to know where they are, what the date and year is, to remember words, to follow instructions, attention, and concentration.