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. 69, No. 2, February

Age-Related Changes in Discrimination of Unfamiliar Odors
If odor perception involves mnemonic processes, differences in olfactory experience should affect discriminative ability. This was examined here by comparing discriminative performance in children and adults. Using an oddity test of discrimination, in...
Attentional Templates Regulate Competitive Interactions among Attended Visual Objects
In two experiments, we examined the mechanisms responsible for creating a zone of interference surrounding an attended visual object (see, e.g., Mounts & Gavett, 2004). In Experiment 1, the similarity between attended stimuli and noise items was...
Deriving Auditory Features from Triadic Comparisons
A feature-based representation of auditory stimuli is proposed and tested experimentally. Within a measurement-theoretical framework, it is possible to decide whether a representation of subjective judgments with a set of auditory features is possible...
Discriminating Languages by Speech-Reading
The goal of this study was to explore the ability to discriminate languages using the visual correlates of speech (i.e., speech-reading). Participants were presented with silent video clips of an actor pronouncing two sentences (in Catalan and/or Spanish)...
Gain Control in the Auditory System: Absolute Identification of Intensity within and across the Two Ears
A number of studies have suggested that the auditory system employs nonlinear gain control to modulate its response to a broad range of stimulus intensities (e.g., Parker, Murphy, & Schneider, 2002), but the precise location and nature of this mechanism...
Haptic Parallelity Perception on the Frontoparallel Plane: The Involvement of Reference Frames
It has been established that spatial representation in the haptic modality is subject to systematic distortions. In this study, the haptic perception of parallelity on the frontoparallel plane was investigated in a bimanual matching paradigm. Eight reference...
Kinematic Cues for Person Identification from Biological Motion
We examined the role of kinematic information for person identification. Observers learned to name seven walkers shown as point-light displays that were normalized by their size, shape, and gait frequency under a frontal, half-profile, or profile view....
Oscillatory Priming and Form Complexity
Detection of a target grouping is expedited when the target display is preceded by presentation of an oscillating premask that includes priming elements presented intraphasically and below detection threshold at the display locations subsequently occupied...
Overriding Auditory Attentional Capture
Attentional capture by color singletons during shape search can be eliminated when the target is not a feature singleton (Bacon & Egeth, 1994). This suggests that a "singleton detection" search strategy must be adopted for attentional capture to...
Small-Sample Characterization of Stochastic Approximation Staircases in Forced-Choice Adaptive Threshold Estimation
Despite the widespread use of up-down staircases in adaptive threshold estimation, their efficiency and usability in forced-choice experiments has been recently debated. In this study, simulation techniques were used to determine the small-sample convergence...
Testing Models of Object Substitution with Backward Masking
A briefly presented visual target stimulus can be difficult to identify if shown in the context of a mask stimulus. There are several quantitative models that have been used to explain many different masking effects. Here, we look at modeling what has...
The Influence of Synchronous Audiovisual Distractors on Audiovisual Temporal Order Judgments
Participants made unspeeded temporal order judgments (TOJs) regarding which occurred first, an auditory or a visual target stimulus, when they were presented at a variety of different stimulus onset asynchronies. The target stimuli were presented either...
The Role of First- and Second-Order Stimulus Features for Human Overt Attention
When processing complex visual input, human observers sequentially allocate their attention to different subsets of the stimulus. What are the mechanisms and strategies that guide this selection process? We investigated the influence of various stimulus...
Tracking Unique Objects
Is content addressable in the representation that subserves performance in multiple-object-tracking (MOT) experiments? We devised an MOT variant that featured unique, nameable objects (cartoon animals) as stimuli. There were two possible response modes:...
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