What are the 2 hypotheses for the cause of hallucinations?
1) input hypothesis
2) output hypothesis
What is the input hypothesis?
Hallucinatory voice is a misconception of a real auditory stimulus
What is the output hypothesis?
Hallucinatory voice is internally generated and misattributed to an external source
What did Frith (1992) conclude about which hypothesis cause hallucinations?
Evidence for output was stronger than input
What did Frith propose 1992 about where hallucinations arise?
Arise from a failure to self-monitor one’s thoughts