Perception and Psychophysics

472 total articles

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

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A face recognition by similarity (FRBS) conjecture

Aug 01, 2008; Rakover, Sam S; Cahlon, Baruch ... Cohen (1963) investigated free recall in two lists of words. The first contained unrelated words. The second comprised words drawn from several semantic categories, where the number of categories was equal to the number of words in the first list. He found that recall of unrelated words was ...

Dividing attention across feature dimensions in statistical processing of perceptual groups

Aug 01, 2008; Emmanouil, Tatiana Aloi; Treisman, Anne ... Statistical processing has been shown in the perception of several visual dimensions, including size, speed, direction of motion, and orientation. Chong and Treisman (2005) found no decrement when people simultaneously averaged two sets on a single dimension, size. What happens when attention is ...

Perceptual experience and posttest improvements in perceptual accuracy and consistency

Aug 01, 2008; Wagman, Jeffrey B; McBride, Dawn M; Trefzger, Amanda J ... Two experiments investigated the relationship between perceptual experience (during practice) and posttest improvements in perceptual accuracy and consistency. Experiment 1 investigated the potential relationship between how often knowledge of results (KR) is provided during a practice session ...

Using temporal order to identify spatial reference frames

Aug 01, 2008; Avons, S E; Oswald, Kristy ... A new method for identifying spatial reference frames is described and applied to the study of spatial span. In this method, a spatial sequence is displayed in relation to two reference frames that move relative to each other, so that different temporal orders are described in each reference ...

A role for the perceptual representation memory system in category learning

Aug 01, 2008; Casale, Michael B; Ashby, F Gregory ... There is growing evidence that working memory, episodic/semantic memory, and procedural memory all play important roles in at least some types of category learning. Little is known, however, about the role of the perceptual representation memory system (PRS). Two experiments are reported that ...

Modality-specific and amodal sources of interference in the attentional blink

Aug 01, 2008; Vachon, François; Tremblay, Sébastien ... When two masked targets (T1 and T2) are visually or auditorily presented in rapid succession, processing of T1 produces an attentional blink (AB)-that is, a transient impairment of T2 identification. The present study was conducted to compare the relative impact of masking T1 and T2 between ...

Audiovisual synchrony and temporal order judgments: Effects of experimental method and stimulus type

Aug 01, 2008; van Eijk, Rob L J; Kohlrausch, Armin; Juola, James F; van de Par, Steven ... When an audio-visual event is perceived in the natural environment, a physical delay will always occur between the arrival of the leading visual component and that of the trailing auditory component. This natural timing relationship suggests that the point of subjective simultaneity (PSS) should ...

Perceptual asynchronies between color and motion at the onset of motion and along the motion trajectory

Aug 01, 2008; Gauch, Angélique; Kerzel, Dirk ... A color change that is physically simultaneous with the onset of object motion may be perceived as occurring before the initial displacement In contrast, a colored flash during object motion is displaced in the direction of motion, suggesting that it is perceived after the continuous position ...

Distractor inhibition is more effective at a central than at a peripheral location

Aug 01, 2008; Chen, Zhe; Treisman, Anne ... The "distractor eccentricity effect" refers to the finding of reduced interference from an incompatible distractor at a central relative to a peripheral location (Chen, 2008). The present study examines the mechanism that underlies the distractor eccentricity effect, and relates it to the ...

Poor shape perception is the reason reaches-to-grasp are visually guided online

Aug 01, 2008; Lee, Young-Lim; Crabtree, Charles E; Norman, J Farley; Bingham, Geoffrey P ... Both judgment studies and studies of feedforward reaching have shown that the visual perception of object distance, size, and shape are inaccurate. However, feedback has been shown to calibrate feedfoward reaches-to-grasp to make them accurate with respect to object distance and size. We now ...

Visual search is not blind to emotion

Aug 01, 2008; Gerritsen, Cory; Frischen, Alexandra; Blake, Adam; Smilek, Daniel; Eastwood, John D ... A series of three visual search tasks revealed more efficient search for hostile than for peaceful faces among neutral face distractors. Given that this effect has been observed inconsistently in prior literature, meta-analytic methods were employed for evaluating data across three experiments ...

Absolute localization of vibrotactile stimuli on the torso

Aug 01, 2008; van Erp, Jan B F ... Vibrotactile mobility systems present spatial information such as the direction of a waypoint through a localized vibration on the torso. Using these systems requires the ability to determine the absolute location of the stimulus. Because data are available only on the ability to determine the ...

Distinctive shapes benefit short-term memory for color associations, but not for color

Aug 01, 2008; Delvenne, Jean-François; Dent, Kevin ... In four experiments, we examined the effect of pairing colors with either homogeneous or heterogeneous shapes on a short-term memory task. In Experiment 1, we found no differences in color memory for displays in which colors were each associated with different shapes, paired with individual ...

Probe-specific proportion task repetition effects on switching costs

Aug 01, 2008; Leboe, Jason P; Wong, Jady; Crump, Matt; Stobbe, Kailyn ... In two experiments, participants were presented with successive presentations of animal names (e.g., GORILLA, WHALE)-a prime display followed by a probe display. In response to each display, participants judged either the typical habitat or the relative size of those animals, repeating the same ...

Practice in visual search produces decreased capacity demands but increased distraction

Aug 01, 2008; Wilson, Daryl E; MacLeod, Colin M; Muroi, Miya ... Lavie (1995) proposed a load account of selective attention, which holds that spare capacity is involuntarily allocated to the processing of irrelevant stimuli. In support of this account, Lavie and Cox (1997) combined a letter search task with a flanker task and found that increasing load ...

Backward recognition masking as a general type of interference in needed poststimulus processing

Aug 01, 2008; Pastore, Richard E; Gaston, Jeremy R; Berens, Melody S ... Auditory backward recognition masking (ABRM) has been argued to reflect interference in the storage and/or processing of a short-lived sensory form of information and has been viewed as a relatively invariant attribute of auditory pitch processing for very brief stimuli that are minimally ...

Perceptual learning and the visual control of braking

Aug 01, 2008; Fajen, Brett R ... Performance on a visually guided action may improve with practice because observers become perceptually attuned to more reliable optical information. Fajen and Devaney (2006) investigated perceptual attunement, using an emergency braking task in which subjects waited until the last possible ...