Marius Usher

TL;DR: The time course of perceptual choice is discussed in a model of gradual, leaky, stochastic, and competitive information accumulation in nonlinear decision units that captures choice behavior regardless of the number of alternatives, and explains a complex pattern of visual and contextual priming in visual word identification.

TL;DR: Noradrenergic locus coeruleus neurons were recorded in monkeys performing a visual discrimination task, and a computational model was developed addressing the role of the LC brain system in cognitive performance, suggesting electrotonic coupling in LC may play an important role in attentional modulation and the regulation of goal-directed versus exploratory behaviors.

TL;DR: It is suggested that 2 memory components are needed to account for the recency effects: an episodic contextual system with changing context and an activation-based short-term memory buffer that drives the encoding of item-context associations.

TL;DR: An alternative theory is proposed, integrating loss aversion and attention switching into a nonlinear model that relies on inhibition independent of similarity among alternatives that accounts for the 3 effects and makes testable predictions contrasting with those of the Roe et al. (2001) model.

TL;DR: The authors proposed a new model of free recall on the basis of M. Howard and M. J. McClelland's leaky-accumulator decision model, where recall decisions are controlled by a race between competitive leaky accumulators.