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. 2020 Aug 6;28(2):374–383. doi: 10.3758/s13423-020-01783-y

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© The Author(s) 2020

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Fig. 3 — The linear ballistic accumulator model assumes that binary decisions depend on the accumulation of evidence for either choice alternative, which varies from trial to trial. The rise-to-threshold (drift rate) is characterized by a normal distribution with mean v and standard deviation s. The distance-to-threshold is characterized by a uniform distribution [B–A, B]. Because v and s are assumed to differ between the accumulators representing correct and incorrect choices, these parameters jointly explain the proportion of errors, as well as the observed response time distributions for different choices (shown on top)