A digital pen slides across the screen and builds a word, letter by letter. On the other side there is a keyboard: just find the key and press it. For the brain the two operations are much less similar than they seem. In a study by the Norwegian University of Science and Technology (NTNU), published on Frontiers in Psychologymuch more extensive brain connectivity patterns appeared during handwriting than during typing.
The study dates back to January 2024, although in recent days it has returned to circulation as a novelty. The result, however, still deserves attention: the movement necessary to construct the letters seems to involve the brain in a way that simply pressing the keys does not reproduce. And in the experiment you didn’t even need paper and a notebook: you wrote with a digital pen on a screen.
A headset with 256 sensors to watch what happens while we write
The researchers recruited 40 college students in their early twenties. EEG data from 36 right-handed participants was clean enough to be analyzed. Each wore a high-density mesh with 256 electrodes, while playing visually presented words. In some tests he had to write them by hand with a digital pen, in others he had to type them on the keyboard.
During manual writing, more complex connectivity patterns emerged in the theta and alpha bands, especially between central and parietal regions. They are brain areas and oscillations involved in various cognitive processes, including those related to sensory integration, working memory and information coding. The authors believe that this increased coordination can create conditions conducive to learning.
The difference becomes quite intuitive as soon as you look at the hand. To write an “A” you need to decide where to start from, guide the movement, control its trajectory and visually verify what appears. Then we start again with the next letter. That same “A” already exists on the keyboard: you need to locate it and press. One letter is constructed, the other is selected. The brain seems to notice the difference.
The advantage seems to lie above all in the gesture
This detail also avoids transforming the paper into an object endowed with mysterious cognitive superpowers. In the Norwegian experiment, participants didn’t write on paper: they used a digital pen directly on a touchscreen.
What makes the difference therefore seems to be above all the richness of the movement necessary to trace each grapheme, together with the visual and proprioceptive information that accompanies that gesture. The authors talk about the combination of controlled hand movements and sensory feedback as a possible origin of the different patterns observed in the EEG.
It is an interesting detail also when thinking about school. Learning to write actually means associating a sign, a sound and a sequence of movements. Typing allows you to arrive at the same visible result much faster, but it eliminates a large part of the path necessary to construct it.
For this reason, the authors suggest maintaining a stable space for manual writing from childhood, without turning the issue into yet another war between notebooks and tablets. The technology continues to have obvious functions; Simply put, different activities ask different things of the brain.
Better memory? Here we need one more step
However, there is a boundary to be kept firm. The study recorded brain activity as students wrote down words they already knew. It did not subsequently test how much they remembered, nor did it directly measure an improvement in learning.
In 2025 Svetlana Pinet and Marieke Longcamp dedicated a scientific commentary to the study, also published on Frontiers in Psychologyrecalling precisely this distinction: observing greater theta and alpha connectivity during manual writing does not, alone, allow us to conclude that the information will be remembered better.
There is also a methodological quirk that deserves a line. During the tests with the keyboard, the students had to type using only their right index finger and without seeing what they wrote appear on the screen. A situation rather distant from that of someone who takes notes with ten fingers during a lesson, and which may have accentuated some differences between the two activities.
However, the authors of the commentary themselves remind us that the discussion on manual writing is not born and dies with this experiment. Previous studies have found benefits of handwriting practice in letter recognition, word recall, and learning to read and write. We still need studies capable of connecting more directly what happens in brain networks with what actually remains in the head.
The data from the Norwegian study, stripped of the temptation to make it say everything, still remains rather beautiful: when we trace a word, the brain must also follow the path taken by the hand. By pressing a button that road becomes much shorter.
And perhaps this is also why, in the age in which we can produce a page without almost touching a pen, that somewhat slow gesture continues to have something to do in our brain.
