A common neural network architecture for visual search and working memory
A common neural network architecture for visual search and working memory
复制标题
用于视觉搜索和工作记忆的通用神经网络架构
DOI:
10.1080/13506285.2020.1825142
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发表时间:
2020
期刊:
影响因子:
2
通讯作者:
Bocincova A
中科院分区:
文献类型:
--
作者:
Bocincova A
Visual search and working memory (WM) are tightly linked cognitive processes. Theories of attentional selection assume that WM plays an important role in top-down guided visual search. However, computational models of visual search do not model WM. Here we show that an existing model of WM can utilize its mechanisms of rapid plasticity and pattern completion to perform visual search. In this model, a search template, like a memory item, is encoded into the network’s synaptic weights forming a momentary stable attractor. During search, recurrent activation between the template and visual inputs amplifies the target and suppresses non-matching features via mutual inhibition. While the model cannot outperform models designed specifically for search, it can, “off-the-shelf”, account for important characteristics. Notably, it produces search display set-size costs, repetition effects, and multiple-template search effects, qualitatively in line with empirical data. It is also informative that the model fails to produce some important aspects of visual search behaviour, such as suppression of repeated distractors. Also, without additional control structures for top-down guidance, the model lacks the ability to differentiate between encoding and searching for targets. The shared architecture bridges theories of visual search and visual WM, highlighting their common structure and their differences.
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影响因子:
3.1
作者:
Olivers, Christian N. L.
通讯作者:
Olivers, Christian N. L.
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
G. Woodman;S. Luck
通讯作者:
S. Luck
影响因子:
24.8
作者:
D'Esposito M;Postle BR
通讯作者:
Postle BR
DOI:
10.1037/xhp0000230
发表时间:
2016-07
期刊:
Journal of experimental psychology. Human perception and performance
影响因子:
--
作者:
Hollingworth A;Beck VM
通讯作者:
Beck VM
影响因子:
13.9
作者:
R. Desimone;J. Duncan
通讯作者:
R. Desimone;J. Duncan