Define the dysexecutive syndrome and name two hallmark features.

• A. A memory dysfunction with amnesia.
• B. A language impairment.
• C. A motor disorder.
• D. A syndrome of impaired executive functions due to frontal lobe damage; hallmark features include poor planning/organization and inhibitory control problems (perseveration, disinhibition).

Answer: (D)

Dysexecutive syndrome is a cluster of problems that follow damage to the frontal lobes, where the brain’s executive functions reside. These functions include planning, organizing, problem-solving, working memory, cognitive flexibility, and especially inhibitory control. The two hallmark features are poor planning and organization, meaning difficulty setting goals, sequencing steps, and monitoring progress; and inhibitory control problems, which show up as perseveration (sticking to a single response or pattern despite feedback) and disinhibition (impulsive or socially inappropriate actions). This combination captures the core issue: trouble guiding goal-directed behavior and regulating responses. Other listed issues don’t fit because memory problems (amnesia) point to different brain systems, language impairments (aphasia) arise from language networks, and motor disorders involve movement pathways—none specifically describe the frontal-lobe–driven executive control deficit seen in dysexecutive syndrome.