A quasi-comprehensive exploration of the mechanisms of spatial working memory

Liqiang Huang ()
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Liqiang Huang: The Chinese University of Hong Kong

Nature Human Behaviour, 2023, vol. 7, issue 5, 729-739

Abstract: Abstract Why are some spatial patterns remembered more easily than others? There are many possible mechanisms underlying spatial working memory function. Here, the author explores different mechanisms simultaneously in a single conceptual model. He conducts a large-scale experiment (35.4 million responses used to measure human observers’ spatial working memory across 80,000 patterns) and builds a convolutional neural network as a benchmark for what is expected to be explainable. The author then creates a quasi-comprehensive exploration model of spatial working memory based on classic concepts, as well as new notions, including spatial uncertainty, Bayesian integration, out-of-range responses, averaging, grouping, categorical memory, line detection, gap detection, blurring, lateral inhibition, chunking, multiple spatial-frequency channels, redundancy, response bias and random guess. This model provides a tentative overarching framework for the mechanisms of spatial working memory.

Date: 2023
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DOI: 10.1038/s41562-023-01559-z

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