My research interests are in human cognitive neuropsychology, with emphases in frontal lobe dysfunction, language processing, and cognitive/behavioral rehabilitation. The primary methods involve application of experimental cognitive and behavioral paradigms in patients with circumscribed brain lesions defined by MRI. Current projects are directed at delineating impairments of social behavior and executive function associated with adult- and childhood-onset damage to prefrontal cortex, evaluating the validity of the classical aphasia classification scheme, and investigating the potential of preserved procedural memory for rehabilitation of amnesia. I am particularly concerned with the interface of ongoing developments in basic neuroscience with clinical application, including development of new methods of treating cognitive and behavioral impairments acquired as a result of brain damage.