Das alternde Gehirn nimmt nicht ab. Es ist Anpassung. Forscher argumentieren, dass die Kognition im späten Lebensalter eine natürliche Phase der menschlichen Entwicklung ist, in der Weisheit Vorrang vor Details hat. Dies könnte erklären, warum ältere Erwachsene besonders gut für den Unterricht und die Betreuung geeignet sind.

The aging brain is often viewed through a lens of cognitive decline, with older adults seen as compensating for their fading memory. New research in Perspectives on Psychological Science challenges that view. Drawing evidence from molecular biology and neuroimaging, researchers at the University of Arizona argue that late-life cognition is a natural phase of human development, one that prioritizes wisdom over details.

The researchers call this idea the adaptive aging hypothesis. It may explain why older adults are especially well suited to teaching, mentoring, storytelling, and other roles that allow them to share accumulated knowledge and wisdom with younger generations. 

“If we look at normative aging as a story of just decline, we are really missing the boat,” said study coauthor Fabian-Xosé Fernandez, an associate professor of cognition and neural systems at the University of Arizona. “The older brain is optimized for different things than the younger brain, predominantly the sharing of stored expertise and social relationships.

The hippocampus helps the brain capture the rich details of an experience, while the frontal cortex focuses more on the overall meaning, or “gist.” During healthy aging, the brain naturally places less emphasis on the hippocampus and relies more heavily on the frontal cortex.

“The fact that you see this across people and animal models suggests there is an evolutionary driving force,” Fernandez said. “One could argue you are developing your entire life, and development occurs in lockstep with the needs of your brain. When you’re younger, the hippocampus turns on because you don’t have a knowledge base or know how the world works. A kid absorbs information like a sponge because they are building an archive of information. In early life, the balance is tilted toward recollecting declarative memories with precision, detail, and context.”

An older adult, by contrast, has a vast store of knowledge to draw upon. Integrating a new experience with that knowledge may be more useful than preserving every detail. The researchers argue that, as people age, the brain shifts its priorities from gathering highly detailed information to understanding the broader meaning and concepts behind an experience.

https://journals.sagepub.com/doi/10.1177/17456916261469175

It makes sense to me that the brain might slowly pivot to a more „advisory“ perspective as the physical faculties decline and make first-person decision-making based on the nitty gritty details less important.

Let’s justify gerontocracy because science isn’t about what’s right. It’s about pleasing those who can donate the most resources.

This is an idiotic paper.

This is antidotal, but
 hopefully it’s ok.  I have a high IQ but my natural tendency is to prioritize the “why” instead of just storing random facts in the hippocampus.  Life trained me to also prioritize the facts.  I wonder if as we age, some of us just revert back to our natural state where we prioritize the “why” of the prefrontal cortex because we never cared about the minutia.