The simplest complete model of choice response time: Linear ballistic accumulation
نویسندگان
چکیده
منابع مشابه
The simplest complete model of choice response time: linear ballistic accumulation.
We propose a linear ballistic accumulator (LBA) model of decision making and reaction time. The LBA is simpler than other models of choice response time, with independent accumulators that race towards a common response threshold. Activity in the accumulators increases in a linear and deterministic manner. The simplicity of the model allows complete analytic solutions for choices between any nu...
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Almost all models of response time (RT) use a stochastic accumulation process. To account for the benchmark RT phenomena, researchers have found it necessary to include between-trial variability in the starting point and/or the rate of accumulation, both in linear (R. Ratcliff & J. N. Rouder, 1998) and nonlinear (M. Usher & J. L. McClelland, 2001) models. The authors show that a ballistic (dete...
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Brown and Heathcote (2008) proposed the LBA as the simplest model of choice and response time data. This claim was, in part, based on the LBA requiring fewer parameters to fit most data sets than the leading alternative, the Ratcliff diffusion model (Ratcliff & Tuerlinckx, 2002). However, parameter counts fail to take into account functional form complexity, or how the parameters interact in th...
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Cognitive models of choice and response times can lead to deeper insights into the processes underlying decisions than standard analyses of accuracy and response time data. The application of these models, however, has historically been reserved for the authors of the models, and their associates. Recently, choice response time models have become more accessible through the release of user-frie...
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Two similar classes of evidence-accumulation model have dominated theorizing about rapid binary choice: diffusion models and racing accumulator pairs. Donkin, Brown, Heathcote, and Wagenmakers (2011) examined mimicry between the Ratcliff diffusion (RD; Ratcliff & Smith, 2004) and the linear ballistic accumulator (LBA; Brown & Heathcote, 2008), the 2 least similar models from each class that pro...
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ژورنال
عنوان ژورنال: Cognitive Psychology
سال: 2008
ISSN: 0010-0285
DOI: 10.1016/j.cogpsych.2007.12.002