Journal of molecular psychiatry. CrossRef Google Scholar Leucht, S.gambling addiction counselling uk LADY LUCK CASINO LAS VEGAS NEVADA Keywords: Pathological gambling Chronic schizophrenia Cognitive-behavioural therapy Drug and psychological treatment. abstract. Relationships between brain-derived neurotrophic factor, clinical symptoms, and decision-making in chronic schizophrenia: data from the Iowa Gambling Task. In order to be diagnosed with pathological gambling, a gambler must display certain specific This means that a staggering 10 percent of schizophrenia patients may suffer from pathological gambling.