EF impairments are known to occur among adolescents with conduct disorder (CD) but their influence on communication ability is not well-understood. The purpose of this study was to relate scores on a clinical EF questionnaire to performance on a communication task. Extemporaneous conversation was chosen as the target task, because it places a high demand on EFs and it is a critical medium for adolescent social development.

Current measures of severity and disability do not stage or track the progression of disability in frontotemporal dementia (FTD) well. We investigated the reliability of the newly developed Dementia Disability Rating (DDR) in the measurement and staging of illness severity in FTD and dementia of the Alzheimer type (DAT).