Note: you may have to look at this presentation in the full screen view to see the whole slide. Where do all the distortions that are common to what we see as psychosis come from? That’s the question I took on in a short series of PowerPoint slides that I created this morning. In these slides, I suggest that these distortions come about out of attempts to resolve two kinds of stress. One type is stress that can result when we are over-estimating the level of external threat, and the second is stress that can result when we under-estimate such threat and so are vulnerable to jarring encounters that we hadn’t anticipated. I will be using these slides in presentations I do, where I will be able to explain the concepts in more detail. But I just thought I would post them here, to see how much sense they might make to you standing on their own.