Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China.
Nat Hum Behav. 2023 May;7(5):729-739. doi: 10.1038/s41562-023-01559-z. Epub 2023 Mar 23.
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.
为什么有些空间模式比其他模式更容易被记住？空间工作记忆功能可能有许多潜在的机制。在这里，作者在一个单一的概念模型中同时探索了不同的机制。他进行了一项大规模实验（使用 3540 万次响应来测量 80000 种模式下人类观察者的空间工作记忆），并构建了一个卷积神经网络作为可解释性的基准。然后，作者基于经典概念以及包括空间不确定性、贝叶斯整合、超出范围的响应、平均、分组、分类记忆、线检测、间隙检测、模糊、侧抑制、分块、多个空间频率通道、冗余、响应偏差和随机猜测等新概念，创建了一个准全面的空间工作记忆探索模型。该模型为空间工作记忆的机制提供了一个试探性的总体框架。
