What was the focus of a recent approach to describing variations in schizophrenic disorders

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The recent approach to describing variations in schizophrenic disorders focuses on the presence of positive or negative symptoms. Positive symptoms refer to the presence of something that should not be there, such as hallucinations, delusions, and disordered thinking. Negative symptoms refer to the absence of something that should be there, such as emotional expression, motivation, and social engagement. This approach is helpful for understanding the different presentations of schizophrenia and tailoring treatments to address specific symptoms.

What Was the Focus of a Recent Approach to Describing