Sunday, July 19, 2020

More on age-related memory issues

This past Friday, I attempted to cover a subject that is bothersome to people my age: a weak or spotty memory. I have since read more on the subject and found some interesting scientific insights in Switzerland that shine a different light on the subject.

Dr. Frisoni, a Geneva University professor, asserts that sometime our complex neuron network inside the brain can’t always retrieve information right away and blanks out. This apparently is linked to our emotional state and stress level.

Under some pressure like an Adrenalin boost, memory is generally stimulated, but beyond a certain level the opposite effect occurs; too much stress paralyzes the process and gets in the way of memorization.

The same undesirable effect happens when there’s too much control that creates fear of failure and can also block memorization, as explained by Dr. Demonet, head of the Lausanne University Hospital.

The trick is to find that delicate balance between letting go while still controlling. As one might expect plenty of exercise helps, so does a good diet and avoidance of alcohol, smoking and other drugs. In other words, doing things that generally promote a good cardio-vascular health that properly irrigates the brain.

But what happens when some information can’t be retrieved ? We can see clearly the subject of the question, but there is no way for the right name to materialize. There’s a tug of war between lexical memory (our ability to remember the words or the vocabulary of a language) and semantic memory (a long-term memory allowing to recall words, concepts, or numbers).

The only solution is to take a time-break and wait for the answer to eventually pop up. This, according to the scientist is the price to pay for too much knowledge, just like having a huge library in which the indexing system lags behind.

Of course, we need to pay more attention, and that will go a long way in recording the information more durably and accurately, but this is pretty obvious.

Then, there is aging. At 50, the brain doesn’t work quite as well as at 20, but while memory weakens, some other faculties, like problem-solving improve…

So, after all, things are not as bad they feel !

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