Theory of Mind in Schizophrenia and Asperger's Syndrome: Relationship with Negative Symptoms

Objective: Although previous studies have shown that the theory of mind (ToM) ability is impaired in Asperger's Syndrome (AS) and in schizophrenia, few controlled studies compared the ToM performance between the two disorders. Besides, the relationship between the degree of ToM impairment and symptom dimensions is unclear, and presence of ToM impairment in remitted patients with schizophrenia is controversial. Here, we tested the hypothesis that schizophrenia patients with prominent negative symptoms were closer to AS patients and different than schizophrenia patients without prominent negative symptoms and healthy controls in terms of ToM functioning.