The co-occurrence of psychotic and autism spectrum disorder (ASD) symptoms represents an important clinical challenge. Here we consider this problem in the context of a computational psychiatry approach that has been applied to both conditions--predictive coding. Some symptoms of schizophrenia have been explained in terms of a failure of top-down…

Since their separation as independent diagnostics, autism spectrum disorders (ASD) and schizophrenia spectrum disorders (SSD) have been conceptualized as mutually exclusive disorders. Similarities between both disorders can lead to misdiagnosis, especially when it comes to average-IQ adults who were not identified during childhood. The aim of this…

Background: There is no study to date that has examined the association between history of abuse and adaptive functioning deficits in youth with co-occurring and psychotic disorders or mood disorders. Method: This study used a retrospective chart review of 98 youth under the age of 18 (Mean age = 16.06 years) with co-occurring intellectual…

Crespi and Badcock (2008) proposed that autism and psychosis represent two extremes on a cognitive spectrum with normality at its center. Their specific claim that autistic and positive schizophrenia traits contrastingly affect preference for local versus global processing was investigated by examining Embedded Figures Test performance in two…

Briefly comments on the previous article by Noll and Benedict, disputing the assumption that the present state of knowledge limits clinicians to symptoms as a frame of reference for classification. (RH)

Reviews literature pertaining to diagnosis of young children with psychotic symptoms and concludes that infantile autism and childhood schizophrenia constitute two distinct groups. A third diagnostic category, developmental psychosis, is proposed and illustrated by a detailed case history. (Author/RH)

This paper reports on two children diagnosed as having co-occurring autistic disorder, schizophrenia-like psychosis, and Tourette syndrome, and two autistic adults who had tics and episodes of schizophrenia-like psychosis. (JDD)

Studies determining the prevalence of autistic children are reviewed. The findings of the survey, conducted in British Columbia in 1978 for the purpose of enumerating the children identified as autistic, psychotic, or schizophrenic, are presented. Among variables described are age, sex, school placement, manner of communication, and existence of…

Examined were research data on the symptomology and etiology of three classes of psychiatric disorder in children: autism, schizophrenia, and disintegrative psychosis

A comparative assessment of eight normal and eight psychotic children in a stimulus generalization paradigm using simple and complex figures. Six of the subjects fulfilled the criteria for infantile autism. (CM)

Digest of papers of the Forty-Seventh Annual Meeting American Orthopsychiatry Association (San Francisco, California, March 23-26, 1970). (RD)