For this study, 54 students from the Boston region were divided into three groups. They had to write 20 -minute dissertations, the first using Chatgpt, the second a search engine and the third only their brain.
The researchers measured the brain activity of the students during sessions spaced several months and two teachers were responsible for noting the writings.
Chatgpt users have had significantly worse results than those who used their only heads. Electroencephalograms have shown that different regions of their brain connect to each other less often.
In addition, more than 80% of AI users could not cite any passage from the dissertation they had just written, against only 10% in each of two other groups.
At the end of the third session, they seemed to be confined mainly to copy and paste.
For their part, the teachers responsible for correcting copies said they were easily able to recognize those, “soulless”, written thanks to AI. If grammar and structure were correct, they lacked creativity, personality and deep reflection.
However, Ms. Kosmyna nuances the interpretations of the study made by certain media, according to which AI makes people stupid or lazy.
During the fourth session, the group having hitherto mobilized that his brain was invited to use Chatgpt for the first time … and posted an even higher level of neural connectivity, she underlines.
It is too early to draw conclusions from such a reduced sample, according to the researcher, who calls for more studies on how to better use AI tools in order to facilitate learning.
Ashley Juavinett, neuroscientist at the University of California San Diego, who did not participate in research, also criticizes certain “extrapolations” made from the study.
“This article does not provide enough evidence or methodological rigor to draw conclusions on the impact of large language models (such as Chatgpt, editor’s note) on the brain,” she told AFP.
For Ms. Leitzinger, these results, however, echo her perception of how the writings of her students have changed since the arrival of Chatgpt in 2022, with fewer spelling mistakes but also authenticity.
The emergence of artificial intelligence is often compared to the introduction of calculators, who forced teachers to change their methods.
Samsung’s Galaxy S25 Ultra becomes the most “intelligent” smartphone
Samsung has the delicate task that is the responsibility of the leaders of a market: that of offering the best possible product each year. This is what the South Korean electronics giant is trying to do on many areas, but the most publicized of them, I do not teach you anything is that of smartphones. Every beginnings of years are entitled to a new occurrence of Galaxy S, the locomotive of the corporate phones; And the pilot is none other than the S25 Ultra in 2025. I was able to try it for a short week, here is what jumped at my eyes.
In 2024, given the advanced timid of Apple’s iPhone in AI, it is to Google that the palm of the smartphone is logically returned. And I did not think that Samsung was going to make such progress in 1 year, it is so complicated to find really useful features, and in all languages, then to integrate them transparently into an operating system. However, this is what the S25 Ultra succeeds, well helped by the panoply of Galaxy AI options, its one UI 7.0 overlay and of course … its stylus.
We are entitled to real intelligent assistance in terms of content displayed by a web page, for example. A text summary of an article, reading aloud or translation to French are rather simple and effective. For my test, I visited a South Korean news site and I clicked on the first article. I then asked for a summary of the content, then the French translation of this summary. And all that, without leaving the Samsung Internet browser (so it doesn’t work with Chrome):
The call recording (your interlocutor is warned if you activate this option) not only allows you to transcribe a telephone conversation, but also offers a summary. A real plus, and French is very well managed. My example with vocal messaging is not very explicit, but here is what it looks like:
I switch to speed on photo, video and audio touch -ups. They have already existed for some time, Google’s “magic gum” having been quickly imitated, and even if Samsung innovates a little about the retouching of the sound of a video, it remains an anecdotal functionality in my eyes, just like that of eating the background of a photo (it can be useful, but I do not even use it once a month).
Then comes a point that is not specific to Samsung, but linked to Gemini. Because Google AI is on board in Android, and if some features are sometimes reserved for Google smartphones (the excellent Pixel) or even a few samsung flagships, they always end up finding themselves a few months later in the majority of manufacturers. But whatever, I tested the small advances of Google AI, which, integrated into the operating system (Android), can go much further than an application like Chatgpt. We can now launch Gemini (long support on the locking button, Bixby is therefore relegated to the background) in overprint, allowing him to interact with the content on the screen. With a YouTube video (Google transcribes them and therefore understands them), we can ask gemini questions on its content (see below). The Google AI is also connected to Gmail or to the Samsung calendar – these are only examples – opening the way for uses allowing day -to -day time, while the famous Circle To Search (AI analyzes what is displayed on the screen and recognizes the relevant elements) is gaining in performance.
Finally, there is the stylus. We return to Galaxy Ai (Samsung AI, therefore), which allows you to transform a small drawing that you have made on a note, in watercolor or cartoon; A fun option but rather gadget. This “creativity” also exists from a photo: you can get a cartoon or sketch version (see below). The stylus always allows, if you like it, to take notes on the fly, to make more precise selections on the screen, to draw – an anecdotal use, in my opinion:
Yes, it is obviously an extraordinary device, as is its price (€ 1,449 with 512 GB of storage, the only version for sale currently in Belgium). What should be known about it, outside the AI? The device is finer (8.2 mm) and lighter (218 g) than the ultra S24, with slightly softened angles for better grip. Its 6.9 -inch AMOLED 2x screen offers a resolution of 3120 x 1440 pixels, and remains a delight for the eyes. It is protected by the new Gorilla Armor 2 glass, which reduces reflections. The maximum brightness reaches 1,445 nits in SDR and 2,356 nits in HDR.
The Ultra S25 is powered by the Qualcomm Snapdragon 8 Elite “for Galaxy” processor, associated with 12 GB of RAM, guaranteeing optimal fluidity and performance, especially for games. The One UI 7 interface was redesigned with a more modern design, sweet curves and fluid animations. There are a few very nice small functions like the “Hello” button, a sort of personal assistant. There are also some bulky software such as the Alternative Store application store, the photo gallery, the browser, wallet, etc. Practical for fans of Samsung who have fully integrated the app and devices ecosystem, but a little heavy for others.
On the photo side, the Ultra S25 has a main 200 Mp sensor, an ultra-angle of 50 MP and two 10 MP (X3) and 50 MP (X5). Software improvements make it possible to obtain more natural skin tones, better management of highlights and a zoom always as efficient. In video, the sequences are brighter and detailed, with an intelligent treatment that separates static objects from moving elements. The macro mode is improved thanks to the new 50 MP-angle sensor.
Regarding autonomy, the Ultra S25 is equipped with a 5000 mAh battery which holds a day in intensive use. The fast load is 45 W, but it is imperative to use a PPS compatible Samsung charger to take full advantage of it. The wireless load is limited to 15 W, without full management of the Qi2.
So, safe value, the ultra S25? Yes, it is a rich and complete proposal from Samsung, but the price is really starting to sting for a smartphone, which we replace on average every 2 or 3 years. It is the smartest of the moment, because the one who incorporates the most useful (and usable) functions of AI, but there is no doubt that Google, and perhaps soon Apple, will match or even surpass the South Korean copy in the coming months.
But Ms. Leitzinger is concerned about the fact that students no longer need any basic knowledge before using AI, jumping the essential step in learning.
The problem goes far beyond teaching. Scientific journals have trouble in the face of the massive influx of articles generated by AI. And the edition is not to be outdone, while a start-up plans to publish 8,000 books written by AI each year.
“To write is to think; Thinking is writing. If we remove this process, what remains of thought? ”Asks Mr. Leitzinger.
