Self-validating presentation and response timing in cognitive paradigms: How and why?
Self-validating presentation and response timing in cognitive paradigms: How and why?
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DOI：
10.3758/bf03195575
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发表时间：
2004-05-01
期刊：
影响因子：
--
通讯作者：
Turner, G
中科院分区：
文献类型：
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作者：
Plant, RR;Hammond, N;Turner, G
随着认知心理学和行为科学中商业实验生成器和定制软件的激增，许多人认为有关毫秒着色准确性的问题已经在很大程度上得到解决。然而，通过对各种范式的实证研究，我们发现了许多时间误差的来源。这些问题包括糟糕的脚本编写实践、不正确的着色规范以及硬件的可变性。在早期研究的基础上，我们开发了一种商业设备和相关软件，使研究人员能够在不进行修改的情况下对大多数基于计算机的范例进行基准测试。这使他们有机会在可行的情况下纠正着色错误，增加可复制性，并通过改变刺激的开始时间，通过更换不准确的硬件，或通过事后统计操作来减少可变性，如果错误的来源是恒定的。我们概述了设备和配套软件套件的功能，强调了这种独立验证的重要性，并突出了可能出现错误的典型区域。
With the proliferation of commercial experiment generators and custom software within cognitive psychology and the behavioral sciences, many have assumed that issues regarding millisecond tinting accuracy have been largely solved. However, through empirical investigation of a variety of paradigms, we have discovered numerous sources of timing error. These can range from poor scripting practices, to incorrect tinting specifications, to hardware variability. Building upon earlier research, we have developed a commercial device and associated software that enables researchers to benchmark most computer-based paradigms in situ and without modification. This gives them the opportunity to correct tinting errors where practicable, increase replicability, and reduce variability by altering onset times for stimuli, by replacing inaccurate hardware, or by post hoc statistical manipulation should the source of error be constant. We outline the features of the device and accompanying software suite, stress the importance of such independent validation, and highlight typical areas that can be subject to error.