cognitive reserve
Brain's resilience to pathological damage through efficient networks and cognitive strategies.
Full Definition
The brain's ability to maintain function despite structural damage or age-related changes through compensatory mechanisms, alternative neural networks, and cognitive flexibility. Higher cognitive reserve, often associated with education, occupational complexity, and social engagement, may delay onset of dementia symptoms. This concept explains why individuals with similar brain pathology may show different levels of cognitive impairment.
In Context
- "Her high cognitive reserve may explain the delayed presentation of Alzheimer's symptoms." — Case formulation
- "Cognitive reserve factors should be considered when interpreting test results." — Assessment guidelines