The oddball effect: perceived duration and predictive coding.

When a unique "oddball" stimulus is embedded in a train of repeated standard stimuli, its duration can seem relatively exaggerated (V. Pariyadath & D. Eagleman, 2007; P.

Visual sensitivity can scale with illusory size changes.

Retinal image size is not the sole determinant of the apparent size of objects. Rather, viewing distance is taken into account when determining apparent size, so images of the same physical dimensions can appear to represent different-sized objects. Here, we take advantage of this to examine the relationship between visual sensitivity and the scaling processes involved in determining apparent size.

Audio-visual speech cue combination.

Background: Different sources of sensory information can interact, often shaping what we think we have seen or heard. This can enhance the precision of perceptual decisions relative to those made on the basis of a single source of information. From a computational perspective, there are multiple reasons why this might happen, and each predicts a different degree of enhanced precision.