Broadly defined risk mental states during adolescence: disorganization mediates positive schizotypal expression.

While schizotypal features are common during adolescence, they can also signal increased risk for the onset of schizophreniform disorders. Most studies with adolescents find that hallucination and delusion-like symptoms (positive schizotypal features) best predict future psychopathology. Still, the developmental process of positive schizotypy remains elusive, specifically with regards to 1) its relationships to negative and disorganization schizotypal dimensions; 2) its associations to maladaptive functioning during adolescence.

Screening for bipolar disorder in adolescents with the mood disorder questionnaire-adolescent version (MDQ-A) and the child bipolar questionnaire (CBQ).

Aim: Screening instruments for bipolar disorders (BDs) in children and adolescents have been developed recently. The present study examined performances of the French versions of the mood disorder questionnaire-adolescent version (MDQ-A) and child bipolar questionnaire (CBQ) in a sample of in- and outpatients.

Methods: Seventy-six adolescents (age 13-18) and parents first completed the MDQ-A (adolescent and parent versions) and CBQ screening instruments.

Associations among metacognitive beliefs, anxiety and positive schizotypy during adolescence.

The expression of early delusion and hallucination-like symptoms, known as positive schizotypy (PS), holds predictive power for later development of psychotic disorders. However, little is known about the psychological and emotional processes promoting the expression of PS during adolescent development. Our study's objective was to examine the nature of the relationships between adolescent PS and two dimensions previously identified to contribute to adult positive symptoms of psychosis, metacognitive beliefs and anxiety.