Empirical researches have shown that autism disorders are overlapped with schizophrenia. The current study sought to replicate existing findings of the overlap between autistic and schizotypal traits in a non-clinical population. The present study aimed to investigate whether personality factors can contribute in underlying this overlap and explain to what extent personality can link both traits. The Autism-Spectrum Quotient (AQ), the Personality Questionnaire-Brief Revised (SPQ-BR), and the Mini-Markers of the Big-five model have been comprised in one online questionnaire and completed by 262 participants from the general (non-clinical) population aged 1882- years (M=31.76, SD=16.26). The findings suggested a significant positive correlation between the e total-AQ and the total-SPQ-BR, in addition to a significant positive relationship between negative symptoms of SPQ-BR, and social and communication deficit of the AQ. High Neuroticism, Low Extraversion, and Low Agreeableness were significantly associated with both autistic traits and schizotypy. However, personality factors accounted for a partial contribution underlying the overlap between traits. The consistency of the findings to the existing overlap model is discussed, and it is argued that not the only personality can contribute in predicting this overlap, but the role of other factors on this association needs further attention.

Empirical researches have shown that autism disorders are overlapped with schizophrenia. The current study sought to replicate existing findings of the overlap between autistic and schizotypal traits in a non-clinical population. The present study aimed to investigate whether personality facto...