The Cost of Accumulating Evidence in Perceptual Decision Making

The cost of accumulating evidence in perceptual decision making.

Decision making often involves the accumulation of information over time, but acquiring information typically comes at a cost. Little is known about the cost incurred by animals and humans for acquiring additional information from sensory variables due, for instance, to attentional efforts. Through a novel integration of diffusion models and dynamic programming, we were able to estimate the cos...

The Use of Evidence by Decision-Making Committees

The Phantom Decoy Effect in Perceptual Decision-making 1 RUNNING HEAD: The Phantom Decoy Effect in Perceptual Decision-making The Phantom Decoy Effect in Perceptual Decision-making

A phantom decoy is an alternative that is superior to another “target” option, but is unavailable at the time of choice. In value-based decisions involving phantom decoys (e.g., consumer choices), individuals often show increased preference for the similar, inferior target option over a non-dominated competitor alternative. Unlike value-based decisions that are driven by subjective goals, perce...

The Feasibility of Evidence- based Decision Making in a Toxicology Emergency Case

Evidence- Based Medicine (EBM) aims to bring the best available evidence into clinical practice.  Different clinical methods of education such as in-patient rounds, follow up rounds, out-patients rounds, group sessions, grand rounds, lectures, and journal clubs could be held by EBM approach. The current text presents two interrelated case reports; a case report of EBM decision making in an emer...

How embodied is perceptual decision making? Evidence for separate processing of perceptual and motor decisions.

The extent to which different cognitive processes are "embodied" is widely debated. Previous studies have implicated sensorimotor regions such as lateral intraparietal (LIP) area in perceptual decision making. This has led to the view that perceptual decisions are embodied in the same sensorimotor networks that guide body movements. We use event-related fMRI and effective connectivity analysis ...