Schizophrenia is a complex neurodevelopmental and brain disorder associated with a wide range of psychopathology affecting cognition, emotion and thinking processes. Although diagnosis of schizophrenia is mainly based on positive symptoms like hallucination and delusion, the ultimate functional outcome of patients with schizophrenia is mainly determined by negative symptoms such as anhedonia, amotivation and expressive dysfunctions. However, the underlying relationship between negative symptoms and social functioning is not fully known.