Summary: An interdisciplinary alliance of experts from more than 20 global institutions united decades of clinical research. By pairing mathematical analyses of natural scene geometry with advanced neurocomputational models, they mapped out exactly how artificial urban landscapes overwork our visual processing pathways, explaining why everyday spaces can induce migraines, eyestrain, reading difficulties, and intense sensory exhaustion.
Key Facts
- The Evolution Misalignment: The human visual system is fundamentally hardwired to process natural landscapes efficiently. When forced to process modern urban elements, like uniform glass skyscrapers, harsh geometric carpet patterns, or packed supermarket shelves, the brain’s computational workload spikes dramatically.
- The Spectrum of Discomfort: Visual discomfort is not just an annoying minor inconvenience. It represents a physical state of neurological strain that can trigger immediate physiological symptoms ranging from severe eyestrain and difficulty reading to full-blown migraines and intense feelings of being overwhelmed.
- The Vulnerability Factor: While poorly designed spaces stress everyone’s brain to some degree, the review highlights that certain visual environments have a significantly more destructive impact on people with pre-existing sensory sensitivities, including individuals navigating migraine, autism, ADHD, dyslexia, or epilepsy.
- Unifying Decades of Split Science: The core achievement of this review is creating a definitive consensus across entirely separate fields, clinical neurology, optometry, and engineering, providing an ironclad biological basis for visual stress.
- Designing for Cognitive Accessibility: Professor Paul Hibbard stresses that because lighting, contrast, layout patterns, and digital screen print directly dictate brain comfort, these elements must be intentionally designed with neuro-accessibility in mind to ensure public spaces are welcoming to all.
- Foundational Comfort Optimization: Professor Arnold Wilkins notes that by establishing this biological framework, industries now have a clear mathematical blueprint to treat sensory comfort as a routine, baseline component of architecture, print media, and digital interface design from day one.
Source: University of Stirling
Modern, human-made environments that feature certain design elements can overload the brain, causing visual discomfort and stress, according to a new University of Stirling study.
Visual discomfort refers to the unpleasant feelings or strain people experience when viewing certain images or environments. This can range from eyestrain to migraine, difficulty reading or feelings of being overwhelmed in situations where others experience no issues at all.
Now a major international review, led by Professor Paul Hibbard of the University of Stirling’s Faculty of Natural Sciences and Emeritus Professor Arnold Wilkins of the University of Essex has found that some seemingly ordinary environments can affect people more than we realise.
Striped patterns, cluttered interiors, high-contrast colours, flickering lights, and even packed supermarket shelves can all contribute to visual discomfort, helping to explain why some spaces can feel uncomfortable or distressing.
The findings, which involved collaboration between experts in psychology, optometry, lighting, architecture and other fields, suggest this could be because modern, human-made environments differ significantly from the natural scenes the visual system has evolved to process efficiently.
The review also found that some visual environments may have a stronger effect on people who are more sensitive to sensory input, including those with migraine, autism, ADHD, dyslexia or epilepsy.
Review lead, Professor Paul Hibbard explained: “Seemingly ordinary visual events can contribute to discomfort in everyday environments, affecting how people read, work, travel, and use shared spaces.
“Our review brings together evidence that some visual environments place excessive demands on the brains of some individuals. This matters for design and accessibility, as well as for neuroscience, optometry, and clinical research.
“If lighting, contrast, pattern, screens, and print contribute to discomfort, they can also be designed with greater care, to ensure that spaces and locations are accessible to everyone.”
The international team, which involved researchers from more than 20 institutions, conducted a comprehensive review to unify decades of findings from fields within clinical neurology, optometry, psychology, and engineering.
By pairing mathematical analyses of natural scene geometry with advanced neurocomputational models, they were able to map out exactly how the brain processes visual patterns.
This allowed the researchers to link features of man-made environments directly to how the brain responds in real-world conditions.
Co-lead author, Professor Arnold Wilkins of the University of Essex, added: “It is an important achievement to have created a consensus around which so many experts from such diverse fields have been able to agree.
“These findings mean that comfort can be treated as a routine, foundational part of design from the very outset.
“It can guide the creation of modern lighting, digital interfaces, print media, and public architecture, giving industries a clear basis to ensure everything we make is both highly functional and comfortable to use.
“Ultimately, the aim is to foster environments and materials that align naturally with human physiology, lowering daily visual strain. By optimising these everyday tools and settings we can ensure that spaces are made accessible, welcoming and inclusive.”
A Cerebral Basis for Visual Discomfort and Visual Stress is published in Vision.
The review was made possible through the collaborative pooling of institutional resources and received no external research grant funding.
Initial groundwork was carried out during a collaborative workshop at Birkbeck, University of London, led by Daphne Jackson Research Fellow Dr Beverley Burke and supported through a conference and research activities allowance.
The core team includes researchers from 15 British universities, alongside specialist optometric and clinical practices. The project also integrates insights from academic institutions in the United States, Sweden, South Korea, Spain, and Japan, as well as European industrial technology partners.
Key Questions Answered:
A: It comes down to an evolutionary mismatch. Your visual cortex evolved over millions of years to effortlessly process the soft, randomized patterns of nature, like trees, rivers, and fields. Modern elements like perfectly parallel stripes, repeating architectural grids, or row after row of high-contrast products on a grocery shelf force your brain’s neurons to fire in an unnatural, hyper-synchronized way. This massive spike in metabolic energy quickly exhausts your visual pathways, translating into physical distress like nausea, dizziness, or head pain.
A: While poorly calibrated lighting and harsh geometries place a heavy cognitive load on everyone, this review explicitly notes that individuals with heightened sensory processing profiles are hit the hardest. This includes people who navigate migraines, autism, ADHD, dyslexia, and epilepsy. For these groups, an ordinary office with flickering fluorescent bulbs and high-contrast, cluttered interiors can act as an immediate sensory barrier, causing deep cognitive fatigue or triggering physical layout auras and seizures.
A: Professor Arnold Wilkins and the team have turned visual comfort into a measurable, routine branch of engineering. Rather than treating design purely as an artistic choice, architects and interface designers can now use advanced neurocomputational models to check their layouts beforehand. By adjusting contrast ratios, softening sharp geometric patterns, utilizing flicker-free lighting systems, and reintroducing organic, natural scene geometry, industries can design schools, offices, and digital apps that actively lower daily visual strain.
Editorial Notes:
- This article was edited by a Neuroscience News editor.
- Journal paper reviewed in full.
- Additional context added by our staff.
About this neuroarchitecture research news
Author: Fraser Clarke
Source: University of Stirling
Contact: Fraser Clarke – University of Stirling
Image: The image is credited to Neuroscience News
Original Research: Open access.
“A Cerebral Basis for Visual Discomfort and Visual Stress” by Alice Price, Andrew J. Schofield, Andrew Keyes, Anna Franklin, Arnold J. Wilkins, Beverley Burke, Bruce J. W. Evans, Caelan Dow, Cathy Manning, Chan-su Lee, Cleo Valentine, G. T. Plant, Georgie Powell, Hillevi Hemphälä, Ian Hosking, Jason J. Braithwaite, John Maule, Jordi M. Asher, Karen Monet, Katherine Batey, Louise O’Hare, Miroslav Slouka, Naomi Miller, Olivier Penacchio, Paul B. Hibbard, Peter Allen, Petroc Sumner, Ruifeng Cole, Sanae Yoshimoto, Sarah M. Haigh, Thomas Wilcockson, Ute Leonards. Vision
DOI:10.3390/vision10020034
Abstract
A Cerebral Basis for Visual Discomfort and Visual Stress
Visual discomfort or visual stress is an uncomfortable subjective experience that occurs in response to specific visual stimuli. It affects a large proportion of the population to various degrees, disproportionately impacting those with heightened sensory sensitivities, particularly neurodivergent individuals.
We argue that this might stem from a mismatch between the statistical properties of visual stimuli in human-made environments and those in natural environments that the visual system can process efficiently. We discuss the inefficiency with which images with certain spatial, chromatic and temporal characteristics are processed by the visual system and propose a cerebral mechanism to account for the discomfort they induce.
The mechanism offers a potential explanation for the large individual differences in susceptibility to discomfort. We highlight two avenues for intervention: (1) environmental modifications aimed at reducing the prevalence of visually stressing stimuli in urban settings, and (2) individual-level strategies, such as personalised optical treatments.
Addressing these challenges requires an interdisciplinary effort bridging neuroscience, vision science, interior and urban design and typography to create visually accessible and inclusive environments.
