Bridging Neural and Computational Viewpoints on Perceptual Decision-Making

The impact of natural aging on computational and neural indices of perceptual decision making: A review

It is well established that natural aging negatively impacts on a wide variety of cognitive functions and research has sought to identify core neural mechanisms that may account for these disparate changes. A central feature of any cognitive task is the requirement to translate sensory information into an appropriate action - a process commonly known as perceptual decision making. While computa...

Neural Stochastic Dynamics of Perceptual Decision Making

Recent studies have identified some brain regions involved in the decision process for simple perceptual tasks, and have provided insight into how sensory information is evaluated before the commitment to a motor response. To understand the dynamical principles of the decision process, and how they emerge from the interaction of interconnected neurons, computational models have been proposed ba...

Neural Mechanisms of Perceptual Decision Making

Building Bridges between Perceptual and Economic Decision-Making: Neural and Computational Mechanisms

Investigation into the neural and computational bases of decision-making has proceeded in two parallel but distinct streams. Perceptual decision-making (PDM) is concerned with how observers detect, discriminate, and categorize noisy sensory information. Economic decision-making (EDM) explores how options are selected on the basis of their reinforcement history. Traditionally, the sub-fields of ...

Perceptual Decision-Making as Probabilistic Inference by Neural Sampling

We address two main challenges facing systems neuroscience today: understanding the nature and function of cortical feedback between sensory areas and of correlated variability. Starting from the old idea of perception as probabilistic inference, we show how to use knowledge of the psychophysical task to make testable predictions for the influence of feedback signals on early sensory representa...