This is the fifth and (for the time being) final piece in our series on schizoaffective disorder. Basically, we are looking at an illness that appears to be a milder form of schizophrenia, with mood swings thrown in for good measure. A lot of the discussion focused on how psychotic and mood episodes related (or not) to each other. What tends to get left out is - never mind the psychosis - schizophrenia is essentially a disorder representing a breakdown in the brain’s capacity to think.

To a...