Visuospatial Working Memory
Corsi Block Test
Watch blocks light in sequence, then replay the spatial order from memory.
What does the Corsi Block Test measure?
It measures visuospatial working memory span — how many spatial positions you can repeat in order after watching a sequence of blocks light up. Your Corsi span is the longest sequence you complete correctly, which reflects ordered spatial storage capacity.
How should you interpret your Corsi Block score?
A span of 6 is typical for adults; 7 or above is strong. The score reflects both how many positions you encoded and how accurately you preserved their order. Encoding blocks as a connected path rather than isolated points usually improves span by 1 to 2 steps.
How does visuospatial memory connect to learning?
Geometry, graphs, anatomy, chemistry structures, circuit diagrams, and code architecture are all spatial. Better visuospatial working memory lets you hold a layout while reasoning about relationships rather than constantly reloading the same picture, which speeds up pattern recognition and transfer.
Why does Vidbyte include the Corsi Block Test?
Visuospatial span is a well-validated and distinct component of working memory separate from verbal span. Vidbyte tracks both because different learners have different memory profiles, and understanding the spatial component helps calibrate which types of content to present visually versus verbally.
Research basis
Research Basis
Milner/Corsi block-tapping task
The classic task uses nine blocks and estimates spatial span by increasing sequence length.
Working-memory components
Forward and backward Corsi variants draw on visuospatial working memory and executive resources.
Average span reference
A common computerized reference reports healthy adult average span around 6.2 blocks.
Corsi normative data
Kessels and colleagues describe standardized administration, scoring, and norms for the Corsi Block-Tapping Task.
Digital Corsi implementation
The eCorsi study evaluates a tablet-based Corsi task and discusses timing and forward/backward span differences.