Executive Function Deficits

The umbrella term executive function (EF) refers to a group of interrelated cognitive processes, including but not limited to controlling initiation and inhibition; sustaining and shifting attention; organization; goal setting, and completion; and determining plans for the future. Taken together, these skills allow individuals to plan and execute tasks as well as to interact and communicate successfully with others. Early EF skills begin to develop in infancy, continue to grow throughout adolescence, and may continue to develop during adulthood.

EF was once considered to be specific to frontal lobe development (prefrontal cortex); however, it is now known that EF involves diffuse brain circuitry, with multiple areas working together (Fiske & Holmboe, 2019).

EF comprises many skills, and there is some disagreement on which skills are housed under this umbrella term (Fahy, 2014; Jacob & Parkinson, 2015; Nyongesa et al., 2019). However, many researchers and clinical experts suggest the following core cognitive dimensions (Nyongesa et al., 2019):

  • working memory
  • inhibitory control
  • cognitive flexibility

Other higher order EF cognitive skills include, but are not limited to,

  • metacognition—the ability to consider one’s own thought process, including self-awareness and self-monitoring;
  • fluid/abstract reasoning skills;
  • multifactorial problem solving (i.e., complex problem solving); and
  • advanced Theory of Mind skills (e.g., perspective-taking).

EF depends on foundational cognitive functions working together. Such cognitive functions include, but are not limited to,

  • attention,
  • processing speed, and
  • memory.

EF deficits are a breakdown of any of these skills at any level. Such a breakdown can impact an individual’s ability to complete functional tasks, such as following a sleep schedule, completing assignments, meeting deadlines, planning for activities, navigating social situations, and managing medications. Difficulties in any of these areas may impact life participation and quality of life.

Speech-language pathologists (SLPs), among other professionals (e.g., neuropsychologists, psychologists, occupational therapists, and physicians), play a critical role in identifying and treating EF deficits in children and adults. Please see ASHA’s resource, Populations Often Impacted by Executive Function Deficits.

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