Impaired conscious memory in non-clinical schizotypy
Introduction. Impaired controlled and preserved/enhanced automatic memory processes have been reported in schizotypy. This memory pattern has been considered as a marker of vulnerability to schizophrenia. Our aim was to further explore this memory pattern in nonclinical schizotypy in order to determine which specific dimensions of schizotypy (i.e., positive, negative or disorganized), and more specifically which components of the dimensions, are most closely related to memory dysfunctions.
... dysfunctions. Methods. Fifty-seven undergraduate students performed a category production task. This was adapted for use with the Process Dissociation Procedure in order to dissociate between automatic and controlled memory processes. The level of schizotypy was assessed using the SPQ. Results. Regression analyses confirmed that controlled memory processes decreased as schizotypy increased. The positive factors (more specifically, the ideas of reference subscale) and disorganized factors (more specifically, the odd or eccentric behavior subscale) were negatively correlated with the controlled memory processes. Conclusions. Our study supports the idea that impaired controlled processes are an early cognitive marker of vulnerability to schizophrenia, and confirm that the disorganized factor contributes the most to vulnerability to memory dysfunction. It also emphasizes the importance of dissociating between each of the features characterizing schizotypy rather than considering it as a whole.