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. 3, April

Attentional and Automatic Processes in Line Tracing: Is Tracing Obligatory?
When comparing two target elements placed on the same convoluted curve, response times are dependent on the distance between the targets along the curve, despite being separated by a constant Euclidean distance. The present study assessed whether such...
Can Exocentric Direction Be Dissociated from Its Exocentric Distance in Virtual Environments?
We conducted two psychophysical experiments to investigate the relationship between processing mechanisms for exocentric distance and direction. In the first experiment, the task was to discriminate exocentric distances. In the second one, the task was...
Cross-Modal Interaction between Vision and Hearing: A Speed-Accuracy Analysis
Cross-modal facilitation of response time (RT) is said to occur in a selective attention task when the introduction of an irrelevant sound increases the speed at which visual stimuli are detected and identified. To investigate the source of the facilitation...
Differential Redundancy Gain in Onset Detection versus Offset Detection
In a visual simple reaction time paradigm with attention divided between the left and right visual fields, redundancy gain refers to the finding of faster responses to stimuli presented in both fields than to single stimuli. The present study investigated...
Does Failure to Mask T1 Cause Lag-1 Sparing in the Attentional Blink?
The attentional blink (AB) effect demonstrates that when participants are instructed to report two targets presented in a rapid visual stimuli stream, the second target (T2) is often unable to be reported correctly if presented 200-500 msec after the...
Identifying the Information for the Visual Perception of Relative Phase
The production and perception of coordinated rhythmic movement are very specifically structured. For production and perception, 0° mean relative phase is stable, 180° is less stable, and no other state is stable without training. It has been hypothesized...
Kanizsa-Type Subjective Contours Do Not Guide Attentional Deployment in Visual Search but Line Termination Contours Do
We used visual search to explore whether attention could be guided by Kanizsa-type subjective contours and by subjective contours induced by line ends. Unlike in previous experiments, we compared search performance with subjective contours against performance...
Large Continuous Perspective Transformations Are Necessary and Sufficient for Accurate Perception of Metric Shape
We investigated the ability to perceive the metric shape of elliptical cylinders. A large number of previous studies have shown that small perspective variations (=10°) afforded by stereovision and by head movements fail to allow accurate perception...
Melody Recognition at Fast and Slow Tempos: Effects of Age, Experience, and Familiarity
Eighty-one listeners defined by three age ranges (18-30, 31-59, and over 60 years) and three levels of musical experience performed an immediate recognition task requiring the detection of alterations in melodies. On each trial, a brief melody was presented,...
Ontological Issues in Distance Perception: Cue Use under Full Cue Conditions Cannot Be Inferred from Use under Controlled Conditions
Phosphorescent square tiles (arranged to yield a single image size) were viewed in the dark by 56 monocular observers who utilized a chinrest. The targets were placed at one of three horizontal distances and at one of three eye heights, allowing us to...
Processing Variant Forms in Spoken Word Recognition: The Role of Variant Frequency
Recognition of a spoken word phonological variant-schwa vowel deletion (e.g., corporate [arrow right] corp 'rate)-was investigated in vowel detection (absent/present) and syllable number judgment (two or three syllables) tasks. Variant frequency corpus...
Reflexive Attention Attenuates Change Blindness (but Only Briefly)
Humans are remarkably insensitive to large changes in a visual display if the change occurs simultaneously with a secondary perceptual event. A widely held view is that this change blindness occurs because the secondary perceptual event prevents the...
Selection in Touch: Negative Priming with Tactile Stimuli
Abundant experimental evidence has demonstrated attentional selection within the visual modality. Furthermore, the consensus view is currently that two processes contribute to selection: the amplification of the target stimuli and the ignoring (or suppression)...
Stimulus Frequency Influences Spontaneous Perceptual Reversals in Ambiguous Apparent Motion
The temporal integration of continuous sensory information into a temporally extended percept becomes evident in spontaneous reversals of ambiguous apparent motion. To study the temporal relation of spontaneous percept reversals and temporal stimulus...
Task Coordination between and within Sensory Modalities: Effects on Distraction
Load theory predictions for the effects of task coordination between and within sensory modalities (vision and hearing or vision only) on the level of distraction were tested. Response competition effects in a visual flanker task when it was coordinated...
The Effect of a Red Background on Location Backward Masking by Structure
It has been established that diffuse red light partially suppresses the magnocellular (M) visual pathway. Previous research reported that metacontrast masking is reduced (improved accuracy) with a red background, consistent with a reduction in M pathway...
Visual Attention Amplifies Response Priming of Pointing Movements to Color Targets
We studied the influence of spatial visual attention on the time course of primed pointing movements. We measured pointing responses to color targets preceded by color stimuli priming either the same response as the target or the opposite response. The...
Visual Statistical Decisions
To identify variables that underlie intuitive judgments about the sizes of groups of similar objects, we asked people to judge the relative heights of vertical bars briefly shown, two groups at a time, on a computer display. Randomly selected normal...
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