Study Shows Children Can Build 'Cognitive Endurance' Through Sustained Practice
Researchers studying over 1,600 children in India found that cognitive endurance—the ability to maintain mental effort over time—can be strengthened through dedicated practice, similar to physical training. The study revealed that disadvantaged students experience steeper performance declines on longer exams, potentially because they receive fewer opportunities for sustained focused practice in school. Understanding and developing cognitive endurance is increasingly important as digital media and short-form content reduce opportunities for sustained mental effort.
Behavioral scientists analyzing standardized test results worldwide noticed a consistent pattern: students performed worse on questions appearing later in exams, with the decline being three times steeper for disadvantaged students compared to wealthy peers. The researchers hypothesized this reflected differences in training opportunities, observing that wealthier students engaged more in independent focused practice like silent reading and problem-solving, while disadvantaged students spent more time on passive activities like lectures and rote memorization. To test whether cognitive endurance could be improved, they conducted an experiment with 1,636 elementary school students in India, assigning them to control and treatment groups during study hall periods. Treatment groups engaged in 20 minutes of continuous cognitive practice—either solving adaptive math problems on tablets or other sustained mental tasks—while the control group followed their usual routine with minimal sustained effort. The research suggests that cognitive endurance functions like a trainable skill, with important implications for educational equity in an era when digital media increasingly prioritizes minimal mental friction.
Limitations & open questions
The article excerpt appears incomplete (ends mid-sentence describing the final treatment group). The full results, statistical significance, effect sizes, and specific recommendations for implementation are not provided in the available text. Additionally, the long-term durability of any improvements and whether gains transfer to other cognitive tasks remain unclear from the excerpt.
What different sources said
- Scientific AmericanCenter
How to build kids’ ‘cognitive endurance’ in an age of distraction
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