Faulty beliefs that cannot be shaken despite evidence to the contrary
Perceived sensations with the absence of real, external stimuli
Behavioural deficits, such as flattened emotions and social withdrawal
Behavioural excesses or peculiarities, such as hallucinations and delusions
Abnormal motor activity, ranging from rigidity to excitement
A break from the real world
Disrupted flow of thought, rapid topic changes, or speech lacking meaning
