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. 67, No. 7, October

Asymmetric Interference between Sex and Emotion in Face Perception
Previous research with speeded-response interference tasks modeled on the Garner paradigm has demonstrated that task-irrelevant variations in either emotional expression or facial speech do not interfere with identity judgments, but irrelevant variations...
Attentional Selection: A Salience-Based Competition for Representation
The role of salience in localized attentional interference (LAI) was examined. In two experiments, target discrimination performance was measured as a function of the spatial separation between the target and a salient distractor item. In Experiment...
Good Continuation Affects Discrimination of Visual Pattern Information in Young Infants
A familiarization-novelty preference procedure was used to determine whether 3- to 4-month-old and 6- to 7-month-old infants utilize the Gestalt principle of good continuation to organize visual patterns. The study involved presentation of a target item...
Luminance Edges Are Not Necessary for Visual Completion
Luminance edges seem to have an important role in visual feature binding and, more specifically, in visual completion because luminance differences are important for the perception of depth. We investigated this claim in two experiments in which the...
On the Role of Otoliths and Semicircular Canals in Spatial Orientation: Dynamics of the Visually Perceived Eye Level during Gondola Centrifugation
The visually perceived eye level (VPEL) was measured during gondola centrifugation. Subjects (N = 11) were seated upright, facing motion in a swing-out gondola. The head was adjusted so that Reid's baseline was tilted 10° anterior end up. The subjects...
Revisiting Preview Search at Isoluminance: New Onsets Are Not Necessary for the Preview Advantage
It has been argued that search performance under preview conditions relies on automatic capture by luminance onsets (Donk & Theeuwes, 2001). We present three experiments in which preview search was examined with both isoluminant and nonisoluminant...
Reweighting Sequential Effects across Different Distributions of Foreperiods: Segregating Elementary Contributions to Nonspecific Preparation
In the study of nonspecific preparation, the response time (RT) to an imperative stimulus is analyzed as a function of the foreperiod (FP), the interval between a warning stimulus and the imperative stimulus. When FP is varied within blocks of trials,...
Spatial Context Learning in Visual Search and Change Detection
Humans conduct visual search more efficiently when the same display is presented for a second time, showing learning of repeated spatial contexts. In this study, we investigate spatial context learning in two tasks: visual search and change detection....
Spatial Probability as an Attentional Cue in Visual Search
We investigated the role of spatial probabilities in target location during participants' performance of a visual search task. Experiments 1 and 2 demonstrated that spatial probabilities could serve as a powerful attentional bias that produced faster...
Tempo Sensitivity in Isochronous Tone Sequences: The Multiple-Look Model Revisited
Factors affecting tempo sensitivity in isochronous tone sequences were investigated in two experiments. Participants listened to tones in sequence conditions in which the number of time intervals in isochronous standard and comparison sequences was varied,...
The Effect of Eccentricity and the Adapting Level on the Café Wall Illusion
The café wall pattern is composed of rows of alternating light and dark tiles, and alternate rows are shifted by one fourth of a cycle. The rows of tiles are separated by narrow horizontal mortar lines whose luminance is between those of the dark and...
The Role of Closure in Defining the "Objects" of Object-Based Attention
Many recent studies have concluded that the underlying units of visual attention are often discrete objects whose boundaries constrain the allocation of attention. However, relatively few studies have explored the particular stimulus cues that determine...
Viewer-External Frames of Reference in the Mental Transformation of 3-D Objects
Most models of object recognition and mental rotation are based on the matching of an object's 2-D view with representations of the object stored in memory. They propose that a time-consuming normalization process compensates for any difference in viewpoint...
Visual Space under Free Viewing Conditions
Most research on visual space has been done under restricted viewing conditions and in reduced environments. In our experiments, observers performed an exocentric pointing task, a collinearity task, and a parallelity task in a entirely visible room....
What Is Enumerated by Subitization Mechanisms?
Subitization, the rapid enumeration of small numbers of objects, is often held to reflect a general ability to process three or four items simultaneously. However, questions as to which types of visual representations count as items for subitization...
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