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. 6, August

A Critical Evaluation of Visually Moderated Phonetic Context Effects
Fowler, Brown, and Mann (2000) have reported a visually moderated phonetic context effect in which a video disambiguates an acoustically ambiguous precursor syllable, which, in turn, influences perception of a subsequent syllable. In the present experiments,...
Distances Appear Different on Hills
When walking effort is increased due to manipulations such as wearing heavy backpacks, people perceive hills to be steeper and distances to be farther (Bhalla & Proffitt, 1999; Proffitt, Stefanucci, Banton, & Epstein, 2003). On the basis of these...
Distortions of Perceived Length in the Frontoparallel Plane: Tests of Perspective Theories
The perceived length of a line segment in a frontoparallel plane is sometimes affected by the presence of other line segments in the visual field. Perspective theories attribute such interactions to size-constancy scaling: The configuration of line segments...
Distractor Familiarity Leads to More Efficient Visual Search for Complex Stimuli
Previous reports suggest that distractor familiarity plays an important role in determining visual search efficiency. However, the specific tasks used in those studies limit the extension of their findings to real-world situations and everyday images....
Does Attention Cause Illusory Line Motion?
Illusory line motion (ILM) has been shown to occur when a line is presented with one end next to a previously stimulated location. The line appears to be drawn away from the site of stimulation. It has been suggested that this is because of the allocation...
Effect of Low Gravitational Stimulation on the Perception of Target Elevation: Role of Spatial Expertise
To examine the interindividual differences in the judgment of the visually perceived eye level (VPEL-upright position) and of the visually perceived apparent zenith (VPAZ-supine position) when the subject is subjected to low gravitational-inertial force...
Look Little, Look Often: The Influence of Gaze Frequency on Drawing Accuracy
The present article attempts to determine what those who draw accurately do differently than those who do not. Four experiments explore the relation between drawing accuracy and the rate at which artists glance between their drawing and the stimulus...
Optical Flow and Viewpoint Change Modulate the Perception and Memorization of Complex Motion
Participants observed a point-light character (PLC) performing a gymnastic movement. They either memorized the final PLC orientation from the initial viewpoint, to match it to a test posture (memory task), or judged whether the biological motion appeared...
Perceptual Effects of Preceding Nonspeech Rate on Temporal Properties of Speech Categories
The rate of context speech can influence phonetic perception. This study investigated the bounds of rate dependence by observing the influence of nonspeech precursor rate on speech categorization. Three experiments tested the effects of pure-tone precursor...
System Reconfiguration, Not Resource Depletion, Determines the Efficiency of Visual Search
We examined two theories of visual search: resource depletion, grounded in a static, built-in brain architecture, with attention seen as a limited depletable resource, and system, reconfiguration, in which the visual system is dynamically reconfigured...
Tactile Spatial Sensitivity and Anisotropy
A gap detection task was examined for its usefulness as a measure of tactile spatial sensitivity and as a measure of anisotropy. In Experiment 1, sensitivity was measured with a gap detection task both with and without a latex glove at three locations...
The Dynamic Events That Capture Visual Attention: A Reply to Abrams and Christ (2005)
We recently demonstrated that, contrary to previous findings, some types of irrelevant motion are capable of capturing our attention (Franconeri & Simons, 2003). Strikingly, whereas simulated looming (a dynamic increase in object size) captured attention,...
The Relation between Auditory Temporal Interval Processing and Sequential Stream Segregation Examined with Stimulus Laterality Differences
In this study, we examine the effects of laterality differences between noise bursts on two objective measures of temporal interval processing (gap detection and temporal asymmetry detection) and one subjective measure of temporal organization (stream...
Turning Objects on Their Heads: The Influence of the Stored Axis on Object Individuation
We used repetition blindness (RB) as a measure of object recognition and compared the pattern of RB obtained for objects with a well-established upright orientation (mono-oriented objects) and those without a usual upright orientation (polyoriented objects),...
Understanding the Structural Determinants of Object Confusion in Memory: An Assessment of Psychophysical Approaches to Estimating Visual Similarity
Computer-generated shapes varying on visual dimensions such as curvature, tapering, and thickness have been used to investigate identification deficits in the category-specific visual agnosia (CSVA) Patient E.L.M.. However, whether the implemented variations...
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