Research interests

My research focuses on the development of mathematical and computational models of cognition, in particular models of human behaviour in which knowledge, perception, motor action and cognitive control are tightly integrated (e.g., reasoning and interacting with maps and diagrams). Much of my work is situated within the theory of the human cognitive architecture called Adaptive Control of Thought-Rational (ACT-R).

My work has been funded by UK Government agencies, including Ordnance Survey and the Ministry of Defence and typically combines experimental methods from cognitive psychology, eye tracking technology and formal modelling.

In addition to diagrammatic reasoning, I have conducted research to develop formal models of other human mental capacities including spatial reasoning, decision making, vigilance, learning and memory, mental imagery, and object location memory.