Debord's oft-repeated 'definition' of psychogeography describes 'The study of the specific effects of the geographical environment, consciously organised or not on the emotions and behaviour of individuals.' And in broad terms, psychogeography is, as the name suggests, the point at which psychology and geography collide a means of exploring the behavioural impact of urban place. And yet this term is term , according to Debord, one with a `pleasing vagueness'. This is just as well, because, since his day, the term has become so widely appropriated and has been used in support of such a bewildering array of ideas that it has lost much of its original significance.