Visuospatial Working Memory: How the Brain Stores Positions Temporarily
While you are following a set of spoken directions — "go past the second traffic light, then turn left at the church" — your brain is doing something specific: holding a sequence of spatial information active in mind for just long enough to use it, then letting it fade. This temporary storage and manipulation of spatial information is called visuospatial working memory, and it is one of the most heavily used — and most measurable — components of everyday cognition.
Unlike long-term spatial memory, which can last years, visuospatial working memory holds information for seconds at most, and only a limited amount at a time. Understanding its capacity, its neural basis, and how it can be measured and trained gives insight into a skill that underlies far more daily tasks than most people realise.
We have embedded a free Spatial Span Test at the bottom of this page — a direct measure of visuospatial working memory capacity.
The Visuospatial Sketchpad
The concept of visuospatial working memory was formalised in Alan Baddeley's influential model of working memory, which divides short-term cognitive storage into specialised subsystems. The visuospatial sketchpad is the subsystem responsible for holding and manipulating visual and spatial information — mental images, spatial layouts, and positions in space — for brief periods.
This is distinct from the phonological loop, which handles verbal and auditory information. The two systems are coordinated by a central executive but operate largely independently — which is why someone can have strong verbal working memory and weak spatial working memory, or vice versa. Research on the neural basis of working memory confirms that the visuospatial sketchpad is engaged in the temporary retention and manipulation of mental pictures, spatial associations, and object placements — distinct cognitive content from the verbal material the phonological loop handles.
Where Visuospatial Working Memory Lives in the Brain
Visuospatial working memory is supported by a distributed but identifiable network of brain regions. Neuroimaging research has localised the visuospatial sketchpad primarily to the right hemisphere, including the right inferolateral prefrontal cortex, lateral premotor cortices, right inferior parietal cortex, and the dorsolateral occipital cortices. This right-hemisphere dominance is consistent with the right hemisphere's broader role in spatial processing.
The dorsolateral prefrontal cortex (DLPFC) and posterior parietal cortex are particularly important for active maintenance and manipulation of spatial information. Research using brain stimulation techniques found that enhancing activity in both the DLPFC and posterior parietal cortex through transcranial direct current stimulation improved performance on the Corsi block-tapping task — increasing both the span (how many positions could be held in mind) and the speed of response. This confirms that these regions are not merely correlated with visuospatial working memory but causally involved in supporting it.
The frontal eye fields also contribute, particularly for tasks that involve tracking spatial positions that require shifts of visual attention — linking visuospatial working memory closely to the mechanisms that control where and how we look.
How Much Can You Hold? Capacity and Limits
Visuospatial working memory has a limited capacity — typically cited as somewhere between four and seven items for most healthy adults, similar to (but measured separately from) verbal working memory capacity. This capacity is usually measured using sequential spatial tasks like the Corsi block-tapping test, where a sequence of locations is presented and must be reproduced in order.
Capacity is not fixed across the lifespan. It develops through childhood, reaching adult-typical levels in early adolescence, and tends to decline gradually with normal aging. It is also sensitive to interference — trying to hold spatial information in mind while simultaneously processing other visual or spatial information reduces effective capacity, because the two tasks compete for the same limited resource.
Individual differences in visuospatial working memory capacity predict performance on a wide range of tasks: navigation, mental arithmetic (particularly multi-digit calculations that require holding partial results spatially), reading comprehension involving spatial content, and any task that requires tracking multiple spatial elements simultaneously.
Why Visuospatial Working Memory Matters for Mathematics
One of the more striking findings about visuospatial working memory is its connection to mathematical ability. Research using variants of the Corsi block-tapping test has found that visuospatial sketchpad performance significantly predicts mathematical abilities in children, independent of verbal working memory. Children with mathematical learning difficulties often show reduced activation in the intraparietal sulcus and surrounding prefrontal and parietal regions during visuospatial working memory tasks — the same network involved in numerical processing.
This connection makes sense given how much of mathematics relies on spatial representation: holding the steps of a multi-digit calculation in mind, visualising number lines, tracking the structure of a geometric problem, or manipulating algebraic expressions all draw on the capacity to hold spatial information actively in mind.
Visuospatial Working Memory in Everyday Tasks
Beyond formal testing, visuospatial working memory underlies a wide range of everyday activities. Following spoken directions requires holding a sequence of spatial instructions in mind long enough to act on them. Packing or arranging objects requires holding a mental plan of the target arrangement while manipulating items toward it. Sports require tracking the positions of multiple players or objects simultaneously, updating those positions as they move. Cooking with multiple dishes requires holding spatial and temporal plans for several processes at once.
People with stronger visuospatial working memory tend to perform these tasks with less conscious effort — the spatial information stays accessible without needing to be re-derived or re-checked constantly. This is part of why some people seem to navigate, organise, and plan spatially demanding tasks more fluidly than others.
Training Visuospatial Working Memory
Visuospatial working memory responds to targeted training. The Corsi block-tapping format — watching a sequence of spatial positions and reproducing it — is one of the most studied and validated training tasks for this specific capacity. Performance improves with consistent practice, particularly when training uses progressively increasing sequence lengths that challenge current capacity.
The Spatial Span Test on Cognitive Train uses exactly this format. Complementary tools — including the Mental Rotation Test and Maze Navigation — train related spatial skills that draw on overlapping but distinct components of the broader spatial reasoning system. For more detail on the specific Corsi paradigm that the Spatial Span Test implements, see the article on the Corsi block-tapping task.
Test Your Visuospatial Working Memory
The test below directly measures your visuospatial working memory capacity using the Corsi block-tapping format. Watch the blocks light up in sequence, then reproduce the pattern in the same order. Your score reflects how many spatial positions you can reliably hold in mind at once. For more difficulty levels and session history, visit the Spatial Span Test page.