Modeling Response Times for Two-Choice Decisions

In the citing paper

“the discharge on any one trial resembles a random walk to a threshold representing the level of evidence required to reach a decision, at which point the decision process terminates”

In the citing paper

“Psychophysical and neural data1 support a model termed drift diffusion6, random walk5,7 or race8 in which a decision is made when the accumulated noisy evidence (decision variable) reaches a criterion level, termed a decision bound.”

In the citing paper

“Several formalisms propose that a representation of noisy evidence is evaluated against a criterion to produce a decision4-8.”

In the citing paper

“The ensuing tradeoff between speed and accuracy is explained by sequential sampling with optional stopping models in which evidence is accumulated to some stopping criterion or bound (Link, 1975; Ratcliff and Rouder, 1998).”

In the citing paper

“The class of bounded sequential sampling models, including many variants (Wald, 1947; Stone, 1960; Laming, 1968; Link, 1975; Good, 1979; Luce, 1986; Ratcliff and Rouder, 1998) explains the tradeoff between speed and accuracy, and many of the essential steps have correlates in neurophysiology (Romo et al., 2002; Heekeren et al., 2004; Ploran et al., 2007; Heitz and Schall, 2012; White et al., 2012;”

In the citing paper

“Many models are proposed to explain the coordination of RT and choice accuracy in 2-choice tasks 4,18,25–27. These models share a common feature: a termination bound is applied to some form of evidence representation, the decision variable.”

In the citing paper

“A simple diffusion model provides a plausible account for the stimulation effects in both areas (Fig. 5).”

In the citing paper

“On the other hand, human studies commonly report skewed RT distributions with a long right tail, which is well captured by the diffusion model (Ratcliff, 1978; Luce, 1986; Ratcliff and Rouder, 1998; Usher and McClelland, 2001; Sigman and Dehaene, 2005) but not the existing neural circuit model.”