Parameter recovery for the time-window-of-integration (TWIN) model of multisensory integration in focused attention.

Parameter recovery for the time-window-of-integration (TWIN) model of multisensory integration in focused attention.
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集中注意中多感官整合的时间窗口整合(TWIN)模型的参数恢复

DOI:
10.1167/14.11.14
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发表时间:
2014
期刊:
影响因子:
1.8
通讯作者:
Colonius
Colonius
中科院分区:
医学4区
文献类型:
--
作者:
Kandil;Diederich;Colonius

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翻译后摘要:摘要在多感官设置,如集中注意力范式(FAP),受试者被指示只对目标模态的刺激作出反应,但反应时间往往会更短,如果一个无人看管的刺激是在一定的时空附近的目标。时间窗口集成(TWIN)模型成功地预测这些观察到的跨模态反应时间的影响。它提出,所有最初的单峰信息必须在一定的时间窗口内到达一个积分点,以便进行整合,从而启动响应增强,如观察到的反应时间减少。在这里,我们进行了一个参数恢复研究的TWIN模型的集中注意力的任务,有五个参数(持续时间的视觉和听觉单峰和综合第二阶段,时间窗口的宽度,和效果大小)。结果表明,参数估计是高度准确的(无偏的,恒定误差小于5毫秒)和精确的(变量误差小于8毫秒)在整个过程中,讲一个高可靠性和标准有效性的过程。进一步的分析确保了估计程序是一致的,并且对污染(错误的整合)具有足够的鲁棒性。因此,它可以用来可靠地估计积分点和时间窗口的宽度。
Abstract:Abstract In multisensory settings such as the focused attention paradigm (FAP), subjects are instructed to respond to stimuli of the target modality only, yet reaction times tend to be shorter if an unattended stimulus is presented within a certain spatiotemporal vicinity of the target. The time window of integration (TWIN) model predicts successfully these observed cross-modal reaction time effects. It proposes that all the initially unimodal information must arrive at a point of integration within a certain time window in order to be integrated and thus to initiate response enhancements like the observed reaction time reductions. Here we conducted a parameter recovery study of the TWIN model for focused attention tasks, with five parameters (the durations of the visual and auditory unimodal and the integrated second stage, the width of the time window, and the effect size). Results show that parameter estimates were highly accurate (unbiased, constant error less than 5 ms) and precise (variable error less than 8 ms) throughout, speaking to a high reliability and criterion validity of the process. Further analyses ensured that the estimation procedure is consistent and sufficiently robust against contamination (faulty integration). It can thus be used to estimate reliably the point of integration and the width of the time window.
海马锥体和齿状颗粒细胞中的兴奋性突触整合。
DOI: 10.1101/sqb.1990.055.01.010
发表时间: 1990
期刊: Cold Spring Harbor symposia on quantitative biology
影响因子: --
作者:
P. Andersen;M. Raastad;Johan F. Storm
通讯作者: Johan F. Storm
DOI: 10.3389/fnint.2012.00062
发表时间: 2012
影响因子: 3.5
作者:
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DOI: 10.1016/s0926-6410(02)00066-6
发表时间: 2002-06-01
期刊: COGNITIVE BRAIN RESEARCH
影响因子: --
作者:
Molholm, S;Ritter, W;Foxe, JJ
通讯作者: Foxe, JJ
DOI: 10.1016/s0926-6410(02)00059-9
发表时间: 2002-06-01
期刊: COGNITIVE BRAIN RESEARCH
影响因子: --
作者:
Meredith, MA
通讯作者: Meredith, MA
DOI: 10.3389/fnint.2010.00011
发表时间: 2010
影响因子: 3.5
作者:
Colonius H;Diederich A
通讯作者: Diederich A