Behavioral and Brain Sciences

Table of Contents - 2005 - Volume 28, Issue 06  


Open Peer Commentary

Now you see it, now you don't: More data at the cognitive level needed before the PAD model can be accepted

Jason Morrison a1 and Anthony S. David a2
a1 Department of Psychiatry, McGill University, Montreal, Quebec H3A 1A1, Canada jason.morrison@mail.mcgill.ca
a2 Section of Cognitive Neuropsychiatry, Institute of Psychiatry; GKT School of Medicine, Denmark Hill, London SE5 8AF, United Kingdom a.david@iop.kcl.ac.uk

Abstract

Before a general cognitive model for recurrent complex visual hallucinations (RCVH) is accepted, there must be more research into the neuropsychological and cognitive characteristics of the various disorders in which they occur. Currently available data are insufficient to distinguish whether the similar phenomenology of RCVH across different disorders is in fact produced by a single or by multiple cognitive mechanisms.