The negative symptoms of schizophrenia can be hard to treat.

Dr. Kay was known for his research into the symptoms of schizophrenia.

The symptoms of schizophrenia can be negative, positive, or cognitive.

Learn about the positive and negative symptoms of schizophrenia.

What is meant by "positive" and "negative" symptoms of schizophrenia?

That must be what was going on with him, the early symptoms of advancing schizophrenia.

Effectiveness against negative symptoms of schizophrenia has yet to be established.

Substance abuse often starts before the symptoms of schizophrenia are recognized.

By this time, symptoms of schizophrenia had already begun to manifest themselves.

But asked about his mental health over dinner later, he said, "I probably show some symptoms of schizophrenia."