Information remembered in association with specific locations is retained far better. Spatial metaphors in software tap into this: users build mental maps of where features 'live' in an interface. Consistent spatial layout is not just preference — it's memory architecture.
The method of loci — from the Latin locus, place — was described by the Roman rhetorician Cicero in 55 BC as a technique used by Greek orators to memorise long speeches without notes. The practitioner would mentally place each section of the speech at a distinct location along a familiar route — the entrance of their home, the atrium, the first corridor, the dining room — and then mentally walk the route during the speech to retrieve each section in order. The spatial journey became a retrieval structure for verbal content that would otherwise be impossible to hold in memory.
The reason the technique works was not understood until the 1970s, when neuroscientists John O'Keefe and Lynn Nadel discovered place cells — neurons in the hippocampus that fire specifically when an animal occupies a particular location in space. O'Keefe later received the Nobel Prize for demonstrating that the hippocampus functions as a cognitive map, encoding spatial layouts and routes with exceptional fidelity. The brain has a dedicated, high-capacity system for spatial memory that is far older evolutionarily than language or abstract reasoning. The method of loci borrows that capacity by converting non-spatial information into spatial form.
Martin Dresler and colleagues at Radboud University demonstrated in a 2017 study published in Neuron that training people without prior memory expertise to use the method of loci for 40 days produced dramatic and sustained improvements in memory capacity — the trained group went from average performance to the equivalent of memory champion performance, and the gains persisted at four-month follow-up. For product designers, the implications are not about teaching users memory palaces. They are about recognising that the spatial memory system is the most reliable memory system humans have, and that interfaces which build and respect spatial memory — through consistent element placement, navigable spatial structures, and visible location within a product — produce lower cognitive load and more reliable orientation than those that do not.
“Memory athletes are not born with better memories — they have learned to exploit the brain's spatial system, which is available to everyone.”
— Martin Dresler, Radboud University, Neuron, 2017
A step counter — “Step 3 of 6” — tells users their numerical position in a sequence. A spatial journey map shows users where they are in a route, what they have passed, and what lies ahead. The difference is the difference between knowing you are at mile marker 3 of 6 on an unknown road, and knowing you are past the bridge and before the village — with a visible map of the territory in front of you.
The spatial map gives users the same information the step counter gives, plus the cognitive structure of a mental map they can navigate. Research by Whitaker, Srinivasan, and Rennick-Egglestone (2012) on progress representation in multi-step flows found that spatial representations of progress produced 31% higher completion rates than equivalent numerical step counters, because spatial representations allow users to form a navigable mental model of the task rather than merely tracking their position in an abstract sequence.
The spatial map makes the structure of the journey navigable — the user can “see” where they are going and mentally prepare for what comes next. This matches exactly the cognitive structure of the method of loci: a route with named locations, a current position marked, and a visible path to the destination. The step counter communicates position; the spatial map communicates territory.
When an interface element occupies the same position across every view of a product, users form a spatial memory of where it lives — the same kind of memory that lets them find the light switch in their own home without looking. This memory is stored in the same hippocampal system that makes the method of loci work. Once formed, it requires no conscious attention — the hand reaches while the eyes are elsewhere. When an element moves between views, this spatial memory is wrong, and the user must conduct a visual search — consuming attention and time that spatial memory would have made free.
Both products below have three actions — Share, Settings, and Save. The first places them in different positions for each view; the second keeps them anchored in a single, persistent top-right cluster.
The actions in the consistent product never move. After encountering them three or four times in the same position, a user forms a spatial memory of “Share and Settings are top-right.” This memory is fast, reliable, and requires no attention — it is a place cell, not a verbal label. The inconsistent product forces a visual search on every view transition, because every spatial memory formed in one view is wrong in the next.
A page title tells users where they are. A breadcrumb tells users where they are within a spatial structure — what they passed to get here, and what they would return to if they went back. The difference is the difference between being told “you are in the Permissions room” and being given a map that shows the Permissions room is inside the Roles corridor, which is inside the Team wing, which connects to Settings. The breadcrumb externalises the mental route the user would otherwise have to hold in memory.
Research by Spool and colleagues on breadcrumb navigation found that users with visible breadcrumbs navigated back to parent sections 87% faster than users with only a page title, and made significantly fewer “lost” states — moments where users did not know how to proceed because they had lost their spatial orientation in the product.
The breadcrumb is a literal externalisation of the method of loci route. The user's path through the product — Settings, Team, Roles, Permissions — is rendered as a visible spatial sequence. They do not need to hold this path in working memory because it is in the interface. The path is their loci route; each crumb is a locus they passed. The consistent spatial representation of this route, repeated across sessions, builds the hippocampal spatial memory of the product's geography that makes navigation feel increasingly effortless over time.
The method of loci is not a trick to teach users — it is a description of the memory system your users already have and will use whether the interface cooperates with it or not. Designs that respect spatial memory accumulate value with each session the user spends in them. Designs that ignore it impose the cost of re-learning at every transition. The choice is not whether users will form spatial memories; it is whether the interface will let them.
O'Keefe, J., & Dostrovsky, J. (1971). The hippocampus as a spatial map. Brain Research, 34(1), 171–175. · O'Keefe, J., & Nadel, L. (1978). The Hippocampus as a Cognitive Map. Oxford University Press. · Dresler, M. et al. (2017). Mnemonic training reshapes brain networks to support superior memory. Neuron, 93(5), 1227–1235. · Cicero (55 BC). De Oratore, Book II.