Perception and Psychophysics

Covers all areas of research in sensory processes, perception, attention, and psychophysics. Includes reports on experimental work, reviews, and issue commentary important to researchers.

Articles from Vol. 70, No. 5, July

A General Area Theorem for the Same-Different Paradigm
According to a well-known theorem in psychophysics (Green & Swets, 1966), the area under the receiver operating characteristic (ROC) for the yes-no paradigm equals the proportion of correct responses of an unbiased observer in the two-interval, two-alternative,...
A Scaling Analysis of the Snake Lightness Illusion
Logvinenko and Maloney (2006) measured perceived dissimilarities between achromatic surfaces placed in two scenes illuminated by neutral lights that could differ in intensity. Using a novel scaling method, they found that dissimilarities between light...
Attention Modulates Set Representation by Statistical Properties
Recent reports have claimed that observers show accurate knowledge of the mean size of a group of similar objects, a finding that has been interpreted to suggest that sets of multiple objects are represented in terms of their statistical properties,...
Better Than Average: Alternatives to Statistical Summary Representations for Rapid Judgments of Average Size
People can perceive the individual features of an object by focusing attention on it and binding the features together at a location. Some perceptual processing can occur without focusing attention on each object, though; people may even be able to extract...
Constant versus Variable Response Signal Delays in Speed-Accuracy Trade-Offs: Effects of Advance Preparation for Processing Time
In two experiments, we used response signals (RSs) to control processing time and trace out speed-accuracy trade-off (SAT) functions in a difficult perceptual discrimination task. Each experiment compared performance in blocks of trials with constant...
Grouping in the Shine-Through Effect
How the elements of a visual scene are grouped into objects is one of the most fundamental but still poorly understood questions in visual neuroscience. Most investigations of perceptual grouping focus on static stimuli, neglecting temporal aspects....
More Than Superstition: Differential Effects of Featural Heterogeneity and Change on Subitizing and Counting
This study investigates the effects of item heterogeneity (differences in color and shape) and moment-to-moment feature change as it relates to the issue of whether subitizing and counting involve different processes. Participants enumerated displays...
Object File Continuity and the Auditory Attentional Blink
Three experiments were designed to investigate the causes of the auditory attentional blink (AB). Experiments 1A and 1B revealed that there was a larger auditory AB when the target and the distractors were different in two attributes than when they were...
Spatial Working Memory Load Impairs Signal Enhancement, but Not Attentional Orienting
The present study examined the effect of spatial working memory load on the attentional cuing effect. It is well-known that spatial working memory and spatial attention functionally overlap or share a common resource. Given this functional overlapping,...
Stressing the Mind: The Effect of Cognitive Load and Articulatory Suppression on Attentional Guidance from Working Memory
Four experiments explored the effect of cognitive load on the time course of top-down guidance of attention from working memory (WM). Observers had to search for a target presented among several distractors, with the target and distractor stimuli embedded...
Tactile-Visual Temporal Ventriloquism: No Effect of Spatial Disparity
Participants made visual temporal order judgments (TOJs) about which of two lights appeared first while task-irrelevant vibrotactile stimuli delivered to the index finger were presented before the first and after the second light. Temporally misaligned...
The Effect of Attentional Demands on the Antisaccade Cost
In the present study, we examined the effect of attentional demands on the antisaccade cost (the latency difference between antisaccades and prosaccades). Participants performed a visual search for a target digit and were required to execute a saccade...
Time Course of Grouping of Shape by Perceptual Closure: Effects of Spatial Proximity and Collinearity
We examined time course of grouping of shape by perceptual closure in three experiments using a primed matching task. The gaps between the closure-inducing contours varied in size. In addition, depending on the distribution of the gaps along the closure-inducing...
Tonal Expectations Influence Pitch Perception
In this study, we investigated the influence of tonal relatedness on pitch perception in melodies. Tonal expectations for target tones were manipulated in melodic contexts while controlling sensory expectations, thus allowing us to assess specifically...
Using Morphs of Familiar Objects to Examine How Shape Discriminability Influences View Sensitivity
We investigated how the difficulty of detecting a shape change influenced the achievement of object constancy across depth rotations for object identification and categorization tasks. In three sequential matching experiments, people saw pictures of...
Visuotactile Apparent Motion
This article compares the properties of apparent motion between a light and a touch with apparent motion between either two lights or two touches. Visual and tactile stimulators were attached to the tips of the two index fingers that were held apart...
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