Symptoms include depression, diarrhea, vent picking, and variable mortality.

症状包括精神沉郁，腹泻，啄肛以及不同的死亡率。

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Signs and symptoms of depression (or a depressive episode) include

抑郁的症状（或郁期）包括

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Sometimes, severe episodes of mania or depression include symptoms of psychosis(or psychotic symptoms).

有时，严重的躁期或郁期有精神病症状（与精神病有关的症状）。

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Other behavioural symptoms may include restlessness, depression, psychosis, or loss of inhibitions.

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Symptoms tend to appear in late adolescence or early adulthood, and can include delusions, hallucinations, paranoia, and depression.

BBC: Gene 'has key schizophrenia role'