Which behavior reflects impairment in executive function ?

Choice A reason: Difficulty finding the right words is medically termed "anomia" or a form of expressive aphasia. This is primarily a language processing deficit localized in the temporal or parietal lobes of the brain, rather than a specific failure of the executive control systems found in the frontal lobe. Choice B reason: Executive function involves higher-order cognitive processes such as planning, organizing, sequencing, and executing goal-directed behaviors. An inability to organize the steps of a task or follow through to completion, despite having the physical ability to do so, is a hallmark of frontal lobe impairment. +1 Choice C reason: Getting lost in a hallway is typically associated with impaired visuospatial processing or topographical disorientation. This deficit is usually linked to the posterior sections of the brain, such as the parietal lobe, which manages spatial awareness and the mental mapping of one's environment. +1 Choice D reason: While inappropriate social comments can sometimes be a sign of disinhibition (which can be executive-related), it is more specifically categorized as a loss of social cognition or behavioral regulation. Task planning and completion is the most definitive clinical example of purely executive organizational processing.