A new toolbox to distinguish the sources of spatial memory error.
A new toolbox to distinguish the sources of spatial memory error.
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DOI:
10.1167/jov.20.13.6
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发表时间:
2020-12-02
影响因子:
1.8
通讯作者:
Manohar SG
中科院分区:
文献类型:
--
作者:
Grogan JP;Fallon SJ;Zokaei N;Husain M;Coulthard EJ;Manohar SG
Studying the sources of errors in memory recall has proven invaluable for understanding the mechanisms of working memory (WM). While one-dimensional memory features (e.g., color, orientation) can be analyzed using existing mixture modeling toolboxes to separate the influence of imprecision, guessing, and misbinding (the tendency to confuse features that belong to different memoranda), such toolboxes are not currently available for two-dimensional spatial WM tasks. Here we present a method to isolate sources of spatial error in tasks where participants have to report the spatial location of an item in memory, using two-dimensional mixture models. The method recovers simulated parameters well and is robust to the influence of response distributions and biases, as well as number of nontargets and trials. To demonstrate the model, we fit data from a complex spatial WM task and show the recovered parameters correspond well with previous spatial WM findings and with recovered parameters on a one-dimensional analogue of this task, suggesting convergent validity for this two-dimensional modeling approach. Because the extra dimension allows greater separation of memoranda and responses, spatial tasks turn out to be much better for separating misbinding from imprecision and guessing than one-dimensional tasks. Code for these models is freely available in the MemToolbox2D package and is integrated to work with the commonly used MATLAB package MemToolbox.
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DOI:
10.1523/jneurosci.3440-17.2018
发表时间:
2018-05-23
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Schneegans S;Bays PM
通讯作者:
Bays PM
影响因子:
1.8
作者:
Bays PM;Catalao RF;Husain M
通讯作者:
Husain M
影响因子:
2
作者:
Stark, Shauna M.;Yassa, Michael A.;Stark, Craig E. L.
通讯作者:
Stark, Craig E. L.
DOI:
10.1523/jneurosci.3493-16.2017
发表时间:
2017-04-05
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Schneegans S;Bays PM
通讯作者:
Bays PM
影响因子:
16.6
作者:
Fougnie, Daryl;Suchow, Jordan W.;Alvarez, George A.
通讯作者:
Alvarez, George A.