Understanding Cognition, Behaviour and Executive Function After Acquired Brain Injury

Cognitive impairment, behavioural change and executive dysfunction are core features of acquired brain injury and have a direct impact on safety, independence and quality of life. Commissioners and inspectors expect ABI services to demonstrate a clear understanding of how these impairments present and how support models respond to them in practice.

This article provides a foundation for understanding cognition, behaviour and executive function in ABI services. It should be read alongside Service Models & Care Pathways and Workforce, Skill Mix & Practice Competence.

Cognition and executive function explained

Executive functions include planning, impulse control, emotional regulation, insight and problem-solving. After ABI, individuals may retain intelligence and communication skills while struggling to initiate, sequence or regulate behaviour.

Behaviour as communication

Behavioural changes following ABI are often misinterpreted as non-compliance or choice. In reality, they frequently reflect cognitive overload, poor insight or difficulty processing consequences.

Commissioner and inspector expectations

Expectation 1: Functional understanding. Inspectors expect staff to understand how ABI-related cognitive impairments affect daily behaviour.

Expectation 2: Tailored support responses. Commissioners expect services to adapt support models to cognitive need rather than applying generic approaches.

Operational example 1: Executive function mapping

An ABI provider introduced executive function profiles that mapped planning, impulse control and insight to daily support strategies.

Impact on risk and safety

Executive dysfunction can increase risk without increasing intent. Effective services separate risk from blame.

Operational example 2: Behavioural trigger analysis

Staff used trigger analysis to identify environmental and cognitive causes of behavioural escalation.

Supporting consistency across teams

Inconsistent responses increase confusion and risk for people with ABI.

Operational example 3: Behavioural support guidance

A provider developed clear guidance for responding to common ABI-related behaviours.

Evidencing understanding in inspection

Providers should evidence:

  • Clear explanations of cognitive and executive impairment
  • Behavioural responses linked to cognitive need
  • Consistent staff practice

Why this foundation matters

Understanding cognition and executive function is essential to safe, person-centred ABI support.


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Written by Impact Guru, editorial oversight by Mike Harrison, Founder of Impact Guru Ltd β€” bringing extensive experience in health and social care tenders, commissioning and strategy.

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