Art and Illusion: A Study in the Psychology of Pictorial Representation

"Absolutely. Gombrich was a kind of mentor of mine; I never studied with him, but he was always immensely encouraging. There are a number of people who are pressing on with art-science agendas and who are interested – both historically and in contemporary terms – with issues of seeing and knowing, which lie behind Gombrich’s The Story of Art . It’s the fact that you don’t just see things and know what they are; you have to have a hypothetical framework, you have to have an interpretive framework, to get leverage on the world. That was very important. I trained as scientist so, in a sense, I knew about hypotheses but less about the philosophical underpinnings which meant that the standard notion of empiricism wouldn’t do the job, that you need schemata models, you need a framework that you can then modify heroically. For Gombrich, Leonardo was the historical embodiment of that process. He was somebody who had this amazing stock of schemas inherited from the art which he knew but an extraordinary ability to work with the grit of observation and the imagination to see that the old wisdom needed challenging, both on grounds of empirical testing but also on grounds of theoretical constructions. In Gombrich’s “making and matching” formula, there’s the idea that you basically have a way of portraying things; if I wanted to paint a portrait of your face, I have a series of pictorial motifs that I can use and combine to do it. “Matching”, then, is the process which is non-obvious and much more difficult than people realise: to make your eye look like your eye, rather than the general eye which I know how to draw. If you read Gombrich’s writings – The Story of Art not least but other essays of his as well – then Leonardo is like the light cavalry. When Gombrich gets into a difficult area of argument, then the Leonardo light cavalry come racing over the hill towards the enemy to win the argument. Importantly for me, Gombrich also gave a sanction for looking at non-art as being as profound as high art in terms of its potential analysis. He would put an advertisement for a rotary shaver beside Raphael’s Madonna della sedia because they’re both using rounds. That sounds trivial but he makes a lot of it. So, that ability to fashion a visual history rather than more restrictedly an art history is of immense importance, and is very much in the spirit of Leonardo’s endeavour. I think he tries to embed in painting all the knowledge – this extraordinary wide ranging encyclopaedic knowledge which he gleans. He wants painting to be a recreation of the visual world on the basis of this encyclopaedic understanding. Ultimately, it’s an unrealisable dream. Even film and moving images can’t do everything. One of the difficulties he had with finishing paintings, is that the ultimate ambition to make the painting into a universal picture, to carry all this immense baggage of knowledge and fantasy, is in a way unrealisable. There’s a kind of unrealistic aspect to the agenda which is always recognisable with Leonardo. I would pull in here the drawings as well as the paintings. No one used drawing in as many ways to explore the nature and the structure of the world, including the things we have come to take for granted like solid sections and exploded diagrams – where you pull something apart to see how it joins up. There’s just this sheer range of visual means he uses in drawing and painting to investigate how the world works, how it looks, and also how we see it. Very unusually for his time, he is interested particularly in the science not just of what we see but of why something looks the way that it does in terms of our acts of seeing."