Interactions between the aging brain and motor task complexity across the lifespan: balancing brain activity resource demand and supply.

ABSTRACT: The Compensation Related Utilization of Neural Circuits Hypothesis (CRUNCH) proposes a framework for understanding task-related brain activity changes as a function of healthy aging and task complexity. Specifically, it affords the following predictions: (i) all adult age groups display more brain activation with increases in task complexity, (ii) older adults show more brain activation compared with younger adults at low task complexity levels, and (iii) disproportionately increase brain activation with increased task complexity, but (iv) show smaller (or no) increases in brain activation at the highest complexity levels. To test these hypotheses, performance on a bimanual tracking task at 4 complexity levels and associated brain activation were assessed in 3 age groups (20-40, 40-60, and

SUBMITTER: Van Ruitenbeek P 

PROVIDER: S-EPMC10183738 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature