There is growing interest in diffusion models to represent the cognitive and neural processes
of speeded decision making. Sequential-sampling models like the diffusion model have a …

Higher brain function relies upon the ability to flexibly integrate information across
specialized communities of brain regions; however, it is unclear how this mechanism …

We describe a mathematically simple yet precise model of activation suppression that can
explain the negative-going delta plots often observed in standard Simon tasks. The model …

Methods of fitting the diffusion model were examined with a focus on what the model can tell
us about individual differences. Diffusion model parameters were obtained from the fits to …

Several previous studies reported relationships between speed of information processing as
measured with the drift parameter of the diffusion model (Ratcliff, 1978) and general …

Older adults typically show slower response times in basic cognitive tasks than younger
adults. A diffusion model analysis allows the clarification of why older adults react more …

Diffusion models for simple two-choice decision making have achieved prominence in
psychology and neuroscience. The standard model views decision making as a process in …

In the recent years, there is a growing interest to use the Ratcliff Diffusion Model (1978) for
diagnostic purposes as the parameters of the model capture interindividual differences in …

The go/no-go task is one in which there are two choices, but the subject responds only to
one of them, waiting out a time-out for the other choice. The task has a long history in …

It is important to identify sources of variability in processing to understand decision-making
in perception and cognition. There is a distinction between internal and external variability in …