We study the biological bases of human cognitive systems – perception, memory, language, thought, cognitive control – and the interrelations among these systems, with a particular emphasis on the characterization of typical and atypical variation across individuals.
Recent projects emphasize (1) functions of the frontal lobe in the regulation of thought and behavior, especially in relation to language and memory processes; and (2) the organization and neural substrates of concept knowledge (especially knowledge of visual attributes) and the relation between conceptual information and perception and language.
We answer these questions by developing and implementing a wide array of behavioral and neuroscientific methods with both typical and atypical populations, including functional magnetic resonance imaging (fMRI), lesion-deficit mapping of neurological patients, transcranial magnetic stimulation (TMS), genotypic analysis of typical variation, on-line eye-tracking, and so on.