This 2000 publication reviews the rapid development of functional neuroimaging techniques and their implications for child psychiatry. It is unusual in its focus on children, and in integrating brain mapping with genetics and behavioural testing. This reference will help clinicians and investigators to: • Understand through imaging the mechanisms of childhood psychiatric disorders • Decide which technique is most appropriate for their purposes, with respect to technology, experimental design, data analysis and ethical considerations • Appreciate the role of molecular genetics and neuropsychology in planning brain imaging studies Coverage includes description of brain imaging strategies and the application to children of imaging techniques used in adults, set against an overview of normal behavioural and cognitive development. Linking the latest findings from neuroimaging to neurophysiological models, this is an essential resource for researchers and clinicians concerned with neurodevelopmental disorders.