Summary: This pioneering functional neuroimaging study provides the first neurological evidence showing how reading medium—paper versus digital tablets—affects story comprehension. The research compares how the brain processes narrative integration when a story is read on paper versus on a digital device.
Using functional MRI (fMRI) to measure local blood flow as a proxy for neural activity, researchers found that reading on paper supplies stable spatial and tactile cues that help the brain organize and retrieve complex story information with noticeably less cognitive effort than reading on a tablet.
Key Facts
- The medium and comprehension question: With e-readers and tablets now common, scientists have debated whether screens affect deep reading, narrative integration, and memory for stories.
- Two-part manga design: The study used a two-part manga story told from two protagonists’ perspectives. Manga’s combined visual and textual format helped participants reconstruct scenes and events when tested outside the scanner.
- Imaging protocol: Because MRI scanners cannot accommodate consumer tablets, participants read the first half of the story on either paper or a tablet outside the scanner, then read the second half inside the scanner through specialized LCD goggles.
- Processing delays with digital reading: Although accuracy was similar across groups, those who initially read on a tablet took significantly longer to answer complex questions that required integrating details from both halves of the story.
- Frontal region efficiency: fMRI scans showed that participants who began on paper exhibited reduced activation in frontal language-related brain regions while reading the second half—an indicator of lower processing demands for narrative integration.
- Effortless organization hypothesis: Lower frontal activation for paper readers suggests that paper’s spatial and tactile cues help the brain organize narrative flow more efficiently, decreasing later processing needs during recall and complex reasoning.
- Tactile and spatial cues: Lead investigator Professor Kuniyoshi Sakai notes the likely advantage of paper lies in its consistent spatial layout and tactile feedback. The team plans follow-up studies comparing handwriting to keyboard typing to explore related effects.
Source: University of Tokyo
New research from the University of Tokyo examines whether reading manga on paper versus on a tablet changes how the brain understands and remembers narrative content.
Participants first read the opening half of a two-part manga either on paper or on a tablet. Later, while inside an MRI scanner, they read the second half through LCD goggles and answered questions about the story. fMRI recordings taken during reading and questioning revealed activity differences that depended on the medium used for the initial reading.
Behavioral data showed both groups answered questions correctly, but tablet-first readers required more time when solving demanding questions that depended on integrating information across both halves of the story. The team says these findings could influence educational choices as well as the design of digital reading hardware and software.
Professor Kuniyoshi Sakai of the Department of Basic Science, whose research focuses on language and the brain, collaborated with a manga publisher to test these effects experimentally. “We assembled participants, gave them the same two-part manga, and measured their performance and brain activity,” Sakai explained. “Some questions required only the first half; others required combining information from both halves. The only difference was whether the first half was read on paper or a tablet.”
Sakai described the imaging approach: “We used functional MRI to measure localized blood flow as an indicator of neural activity. Since tablets can’t enter the MRI room, participants read the first half outside the scanner and the second half inside using LCD goggles.”
fMRI results during the second-half reading and during question answering revealed that participants who had read the first half on paper showed lower activation in left frontal regions tied to language and narrative integration. For the tablet-first group, left frontal activation was higher when answering integration-demanding questions, and right frontal regions showed patterns correlated with performance—suggesting compensatory processing when integration is more challenging.
The authors suggest a likely mechanism: paper provides consistent spatial landmarks and tactile signals—page turns, relative layout, and a fixed physical context—that help the brain encode and later retrieve story structure more efficiently than a digital display. These sensory anchors may reduce the need for effortful integration during later stages of comprehension.
The team also plans to extend this work by comparing handwriting versus keyboard typing, which could reveal further interactions among input method, memory, and language processing. “Paper’s advantages may extend beyond memory and attention to language and thought, since it supports careful reading and reflective comprehension,” Sakai added.
Key Questions Answered:
A: Manga combines text with rich visual narratives. Professor Sakai selected manga because its pictorial information helps readers reconstruct scenes and events, making it easier to measure narrative integration. The research team notes similar integration processes apply to traditional novels and other written material.
A: Paper provides stable spatial and tactile anchors. Physical page locations and the sensation of turning pages give the brain consistent structural cues that screens typically lack, allowing internal language networks to organize plot lines and context more efficiently.
A: fMRI showed a processing bottleneck in frontal language regions for tablet-first readers. When answering complex questions that demanded integration across the story, frontal circuits in tablet readers were more active and required more time to reach correct answers compared to paper readers.
Editorial Notes:
- This article was edited by a Neuroscience News editor.
- The journal paper was reviewed in full.
- Additional editorial context was provided by staff.
About this neuroscience and reading research news
Author: Rohan Mehra
Source: University of Tokyo
Contact: Rohan Mehra – University of Tokyo
Image credit: Neuroscience News
Original Research: Open access. “Manga reading on paper vs. digital devices: Prospective effects on core and supportive integration processes in the brain” by Keita Umejima, Yuki Sunada, and Kuniyoshi L. Sakai. PLOS One. DOI:10.1371/journal.pone.0349778
Abstract
Manga reading on paper vs. digital devices: Prospective effects on core and supportive integration processes in the brain
Previous reports suggest reading on paper can improve story comprehension compared with digital formats, but the neural mechanisms were unclear. The study used Japanese manga stories presented in two halves, each offering the same events from different protagonists’ perspectives. Researchers examined how the medium used to read the first halves—paper (Paper preparatory condition) or a tablet (Tablet preparatory condition)—affected processing of the second halves, which participants read on an electronic display inside the scanner while providing continuous empathy ratings.
Magnetic resonance scanning occurred during the second-half reading and while participants answered two question sets: Set 1 could be answered using information from the first half alone; Set 2 required integrating details from both halves. Behavioral results showed longer response times in Set 2 for the Tablet condition. Comparing Sets 1 and 2 for correct answers revealed significant response time differences only for the Tablet group.
Neuroimaging showed that for the Paper condition, left frontal activations significantly decreased during second-half reading, and right frontal activations also decreased in Set 1. In contrast, core left frontal activations peaked in Set 2 for the Tablet condition, and supportive right frontal activations correlated with individual accuracy in Set 2 for Tablet readers, indicating additional integration processes supported correct performance.
Overall, the results demonstrate stronger prospective effects when reading on paper: linguistic and narrative-structural integration processes are facilitated in a way that reduces excessive neural activation during later comprehension and retrieval.