What self-generated speech is externally misattributed in psychosis? Testing three cognitive models in a first-episode sample

Abstract

Background: External misattribution of internally generated speech has been implicated in several cognitive models of psychotic symptomatology as the process by which internal percepts become hallucinations. Different strands of research have suggested that a) information is externally misattributed irrespective of meaning, conferring a risk for hallucinations, b) negative or derogatory self-generated percepts are externally misattributed leading to persecutory hallucinations, and c) that, in some people who have experienced childhood trauma, post-traumatic intrusive memories of trauma are externally misattributed to become hallucinations. Methods: These strands of research were investigated..