Since Bennett, Draper, and Frith published a paper in this journal in 2000 considering the possible criminalisation of HIV transmission, an important legal development has taken place. February 2001 saw the first successful United Kingdom prosecution for the sexual transmission of disease for over a century, when Stephen Kelly was convicted in Glasgow of recklessly injuring his former girlfrien...

for discussion of these ideas. David Andrews can be credited for having introduced this topic at an early point, whilst Uta Frith and Franky Happe can be credited for their influential notion of 'cognitive style'. Finally, Dante Cicchetti and Alan Sroufe provided excellent editorial advice.

SOME DELUSIONS MAY arise as responses to unusual experiences (Davies et al. 2001; Maher 1974;). The implication is that delusion formation in some cases involves some kind of bottom-up mechanism—roughly, from perception to belief. Delusion formation may also involve some kind of top-down mechanism. This could be in the shape of a patient’s flawed background beliefs, or biases, which somehow mod...