Neuroscientists Discover a Brain Edge for Reading Physical Books

Reading a physical book has a certain special quality for the brain that a screen can’t replicate. Neuroscience has now backed up that feeling: a new study shows a measurable brain-level difference between reading on paper and reading on a tablet when it comes to understanding a narrative.

The Study

Neuroscientists at the University of Tokyo’s Department of Basic Science, led by Prof. Kuniyoshi L. Sakai, set out to test what many readers feel intuitively about paper. The project began as an inquiry from COAMIX INC., a major Japanese manga publisher, asking whether the value of paper books could be studied scientifically.

Participants were given a two-part manga story told from the perspectives of two protagonists, then asked simple and complex questions about the plot — the complex ones required understanding both halves of the story. The first half was read either on paper or on a tablet.

The researchers then used an fMRI scanner — a technology that detects local blood-flow changes in the brain that reflect which neurons are firing — to observe participants’ brain activity.

Because an MRI scanner is a large magnet, a tablet cannot be brought into the scanning room, so both groups actually read the second half of the story on LCD goggles inside the scanner, regardless of which medium they’d used for the first half.

Accuracy was similar between the two groups, but participants who had first read on a tablet took measurably longer to answer the harder questions that required combining information from both halves of the story.

During the second half, participants who had read the first half on paper showed reduced activation in frontal, language-related brain regions — in other words, their brains needed to work less hard to integrate the story.

The study — Umejima, Sunada, and Sakai, “Manga reading on paper vs. digital devices,” published in PLOS ONE on June 3, 2026 — used manga specifically because its visual, panel-based structure makes differences in comprehension and brain activity easier to observe objectively, though Sakai’s team believes similar effects would apply to novels and other text.

Sakai’s team is now planning a follow-up study comparing the effects of handwriting versus typing on a keyboard, using a similar method.

Why Paper Seems to Help

The Tokyo researchers’ working explanation centers on “story schema” — a mental model that places characters, events, and story elements in a specific spatial and structural context, built in part through page-by-page navigation. A physical book gives constant tactile and spatial feedback — where you are in the story, how many pages remain — that a scrolling screen doesn’t.

This idea has research behind it that predates the Tokyo study. In a 1971 experiment, Ernst Z. Rothkopf found that readers had incidental memory for where on a page and in a document information appeared, and that this spatial memory was linked to how well they recalled the content itself.

Later researchers have described this as turning pages creating a spatial “index” that helps the brain locate and retain information. Conversely, because scrolling on a screen constantly shifts the spatial position of text, it appears to disrupt this kind of spatial memory.

A Broader Body of Evidence

The Tokyo study joins a growing body of research on this question. A 2018 meta-analysis of 54 studies and more than 170,000 participants by Pablo Delgado, Cristina Vargas, Rakefet Ackerman, and Ladislao Salmerón found that reading on paper produced significantly better comprehension than reading digitally — though the advantage held mainly for expository/informational texts, not narrative ones, and it grew larger for more recent studies rather than shrinking as people grew more digitally native.

A separate line of research has looked specifically at children. A 2023 EEG study of fifteen 6-to-8-year-olds published in PLOS ONE found that reading from paper was associated with higher beta and gamma brain-wave activity — frequencies linked to focused attention — while reading from a screen produced more alpha and theta activity, associated with mind-wandering and reduced attention.

A higher theta-to-beta ratio during screen reading was linked to lower attention in these children. Notably, though, the study did not find a significant difference in reading comprehension performance between the two conditions — the paper-vs-screen gap showed up in attention-related brain activity, not test scores.

On the comprehension side specifically, a 2023 meta-analysis by Lidia Altamura, Cristina Vargas, and Ladislao Salmerón found that the relationship between reading habits and comprehension is far stronger for print than for leisure digital reading — enough that, as the researchers put it, a student who spends ten hours reading books on paper will likely show roughly six to eight times greater comprehension gains than a student who spends the same ten hours reading digitally.

Sakai has summarized his team’s broader view this way: paper’s advantage isn’t just about memory, attention, and emotional engagement — it extends to language and thought, because paper reading tends to involve more careful, deliberate engagement with the text.

None of this means digital reading is unusable — the differences researchers have found are often modest, and some, like the children’s EEG study, show up in brain activity without a matching gap in test performance.

But across several independent lines of research, from decades-old memory experiments to this year’s fMRI study, physical books appear to give the brain a structural and tactile scaffold — page position, weight, layout — that helps it build a clearer mental model of a story, one a screen doesn’t naturally provide.