" For those diagnosed with schizophreniform disorders, the clinical symptoms include delusions, hallucinations, and disorganised speech. Quite often, there is accompanying over-talkativeness and elation of mood. There can also be abnormal behaviour, especially that of ‘posturing’ using the various exercise postures of the Qigong practice. The first rank symptoms of schizophrenia described by Schneider such as thought control or alienation may be apparent, but are not always present. A number of patients could be described as suffering from an affective disorder, with either depressive or manic episodes. "
" For those diagnosed as having various forms of neurotic disorders, the clinical manifestations can be divided into physical and psychological forms. Nearly all patients have a special complaint of something like “the Qi moving within the body, and dashing or rushing into the head”. Often, such `qi’ becomes stagnated somewhere, leading to headache, dizziness, or strange perceptions in the lower abdomen (called the `Dan-Tian point’). Psychological symptoms include hypochondriasis, obsessive thoughts or images, phobia, suicidal ideas, and feelings of sadness, anxiety, and worries about being out of control. For those who manifest with the dissociative state (previously labelled the ‘hysteric syndrome’), there are features of disturbed consciousness, disorientation of time, place, and person, and visual and auditory hallucinations. Such features usually occur after Qigong practice for 2 weeks or a month."