Schizotypy and Wason's 2-4-6 task.

Hello,
I'm a 3rd Year student studying Psychology at an English university
and I'm currently planning a piece of research that will investigate
the relationship between schizotypy scores on a schizotypy inventory
and performance on Wason's 2-4-6 task.

In order to plan my research I've been reading a lot about Wason's
task but I'm finding it very difficult to locate good literature
examining the relationship between schizotypy and reasoning. I am also
having trouble finding an entry-level explanation of schizotypy's
effects, causes and characteristics.

Wason's 2-4-6 task is designed to examine the strategies employed when
using a hypothesis-testing type of reasoning.

I would be very grateful if someone could offer some relevant
references or suggestions.

Thank you.