As you drive into the centre of town, cars and trucks approach from several directions, and
pedestrians swarm into the intersection. The wind blows a newspaper into the gutter and a …

All cortical and thalamic levels of sensory processing are subject to powerful top-down
influences, the shaping of lower-level processes by more complex information. New findings …

Visual cognition, high-level vision, mid-level vision and top-down processing all refer to
decision-based scene analyses that combine prior knowledge with retinal input to generate …

Many experiments in psychology yield both reaction time and accuracy data. However, no
off-the-shelf methods yet exist for the statistical analysis of such data. One particularly …

Abstract F. Attneave (1954) famously suggested that information along visual contours is
concentrated in regions of high magnitude of curvature, rather than being distributed …

This review focuses on low and intermediate stages of contour shape processing. It is split
into two main sections,'Contour Detection'and 'Shape Discrimination and Representation' …

In this study, a large number of observers (N= 201) were asked to segment a collection of
outlines derived from line drawings of everyday objects (N= 88). This data set was then used …

An intrinsic part of seeing objects is seeing how similar or different they are relative to one
another. This experience requires that objects be mentally represented in a common format …

How the visual system represents shape, and how shape representations might be
computed by neural mechanisms, are fundamental and unanswered questions. Here, we …

Several recent studies have used radial frequency patterns to investigate intermediate-level
shape perception, a critical precursor to object recognition. Here, we developed the first …