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Studies have shown that electrical brain stimulation improves memory in older people

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In the United States, studies have been conducted that have shown that weak electrical brain stimulation can improve memory in older people. This works for both short and long term memory and the effect lasts for about a month.

Studies have shown that electrical brain stimulation improves memory in older people

The studies were carried out at Boston University, where they used the technique of transcranial alternating current stimulation (tACS). Electrodes are attached to the head and transmit weak electrical impulses. This, as studies show, improves connections between areas of the brain and has a beneficial effect on memory. The research was led by Rob Reinhart.

The study stimulated parts of the prefrontal cortex in the front of the brain, which is responsible for long-term memory. They also stimulated the lower parietal lobe in the back of the brain, which is responsible for short-term memory. For the first, high frequencies were used, for the second, low ones.

The experiment involved 60 volunteers aged 65 to 88 years, they were divided into 3 groups. The first third were stimulated only in the prefrontal cortex, the second – in the parietal lobe, and the third was not stimulated at all. The task was to reproduce a list of 20 words that were read to the participants.

Those who received stimulation, according to Reinhart, felt only “a slight tingle, itching, or warmth.” Each session lasted 20 minutes, they were repeated for 4 days. As a result, it turned out that those who received stimulation remembered words better than those who did without it.

Studies have shown that electrical brain stimulation improves memory in older people

Memorization depended on the stimulation of a particular area of ​​the brain, and in percentage terms, it was about increasing the quality of memorization by 50-65%. These participants in the experiment memorized an average of 4 to 6 additional words from a list of 20. It is important that the type of stimulation should correspond to natural brain waves. Otherwise, there will be no effect.

At the same time, the best indicators were those who demonstrated the worst cognitive functions at the beginning of the study. Researchers believe that this method will help people with Alzheimer’s disease or other types of dementia.

So far, this is only preliminary data, so it is too early to draw full conclusions. However, Marom Bixon, a neuroengineer at the City College of New York who was not involved in the experiment, said the intervention was very short, but had an immediate and very long-term effect. At the same time, he clarified that additional research is needed, but the technology has potential. It can appear in every doctor’s office or even in patients’ homes.

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Nvidia, where are the normal prices for inexpensive video cards? In Europe, prices fell by half of the Radeon RX 6000 models and just two RTX 30 models

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Nvidia where are the normal prices for inexpensive video cards

Despite the fact that a few months ago the average prices for video cards were at the level of recommended values, individual models have room for cheaper prices and they are getting cheaper.

Nvidia, where are the normal prices for inexpensive video cards?  In Europe, prices fell by half of the Radeon RX 6000 models and just two RTX 30 models

In particular, affordable AMD models were actively getting cheaper in the first half of the year and now they are generally not getting cheaper, but the more expensive ones continue to fall.

RX6400 RX6500XT RX6600 RX6600XT RX6650XT RX6700 RX6700XT RX6750XT RX6800 RX6800XT RX6900XT RX6950XT
Minimum price on July 26, euro 169 189 279 374 399 439 469 559 659 749 869 1173
Minimum price for today, euro 169 199 269 375 359 429 469 497 589 679 769 899
GTX 1630 RTX 3050 RTX 3060 RTX 3060 Ti RTX 3070 RTX 3070 Ti RTX 3080 RTX 3080 Ti RTX 3090 RTX 3090 Ti
Minimum price on July 26, euro 175 309 379 469 569 669 779 999 1323 1449
Minimum price for today, euro 175 300 379 459 578 679 799 999 1050 1199

For example, as you can see, the Radeon RX 6950 XT, instead of 1173 euros a couple of months ago, now costs only 900 euros, and this is the most productive AMD card and, together with the GeForce RTX 3090 Ti, one of the most productive on the market in general. At least until the start of sales of the RTX 4090. At the same time, just a couple of months ago, the RX 6900 XT cost the same as the RX 6950 XT now, the RX 6800 XT, like the RX 6900 XT, and so on.

Things are not so good with Nvidia cards. Here, only two top models fell in price, however, both are very significant. The situation is worse with other adapters. For example, the popular RTX 3060 is now worth as much as the significantly more powerful RX 6650 XT, and the RTX 3080 Ti is 100 euros more expensive than the RX 6950 XT.

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There may be alien life. The Juno spacecraft flew just 417 km from the surface of Europa

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There may be alien life The Juno spacecraft flew just

The Juno spacecraft sent back new photos of Jupiter’s moon Europa. The new ones differ from the previous ones in that they were made during the flight of the apparatus over Europe at a distance of only about 350 km. For comparison, the ISS is above the Earth at an altitude of 417 km.

There may be alien life.  The Juno spacecraft flew just 417 km from the surface of Europa

It is not known how many photographs were taken in total, but if we talk about the closest approach, the device swept past Europe at a speed of 23.6 km / s, so it is unlikely that many photographs were taken during this time.

Now astronomers will be able to compare recent images with earlier ones and see if there are any changes on the surface of the satellite. Unlike many other bodies in the solar system, the surface of Europa can indeed change slightly over a fairly short period, since, according to current ideas, there is a huge ocean under the thick ice crust, and sometimes due to tidal forces, the ice can crack and move.

There may be alien life.  The Juno spacecraft flew just 417 km from the surface of Europa

In addition, scientists need as much data as possible about Europe, since in 2024 the Eupora Clipper should be launched – the first mission to this particular satellite of Jupiter, where, given the available data, there can be the most optimal conditions for the emergence and development of life.

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In Japan, introduced the physical version of the Gboard keyboard – it is very long

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In Japan introduced the physical version of the Gboard keyboard

The division of Google Japan introduced the physical keyboard Gboard in a very unusual form factor. The novelty resembles a long stick – there the buttons are placed in one row, which is why the length of such a keyboard is 1650 mm. Google Japan believes that with the Gboard Bar it is easier to find the right key, and you can also enter text together.

In Japan, introduced the physical version of the Gboard keyboard - it is very long

This keyboard can also be used as a ruler or fishing tackle holder. You can also touch the switch.

This is not the first such experiment of the Japanese branch of the company. There, last year they showed a version of the device in the form of a cup for a traditional tea ceremony. And in the future, it is planned to release a flexible version of the Gboard Bar that can be rolled up and put in your pocket.

So far, this is just a joke, not a single such device has been launched into the series, but the idea itself looks original.

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