Results 291 to 300 of about 49,312 (332)
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No Masking between Test and Mask Components in Perceptually Different Depth Planes
Perception, 20112-D cues to perceived depth organization have been used to segregate test and mask stimulus components in a discrimination task. Observers made either spatial-frequency or orientation judgments on a rectangular test component by itself or in the presence of constant rectangular masks.
Patrick J, Hibbeler, Lynn A, Olzak
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A perceptual metric for masking
IEEE International Conference on Acoustics Speech and Signal Processing, 1993Analytical tools were developed to predict masking of formant frequencies of steady-state vowels in the presence of a noise masker. Two kinds of masking were studied: within-band masking (where the signal frequency was within the bandwidth of a noise masker) and above-band masking (where the signal frequency was above the upper cutoff frequency of the ...
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“The mask who wasn’t there”: Visual masking effect with the perceptual absence of the mask.
Journal of Experimental Psychology: Learning, Memory, and Cognition, 2015Does a visual mask need to be perceptually present to disrupt processing? In the present research, we proposed to explore the link between perceptual and memory mechanisms by demonstrating that a typical sensory phenomenon (visual masking) can be replicated at a memory level.
Rey, Amandine Eve +4 more
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Masking Effects Induced by Perceptual Colour Components
Perception, 1997Signals from the three types of cone photoreceptors are generally thought to be combined into two opponent-colour components and an achromatic component. Here we have chosen the cardinal directions Ach (achromatic axis), Cr1 (reddish - greenish axis) and Cr2 (bluish - yellowish axis) defined by Krauskopf to build a colour image coding scheme based on ...
L Bedat, A Saadane, D Barba
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Perceptual discrimination in monkeys: Retroactive visual masking
Physiology & Behavior, 1969Abstract Five monkeys were trained to discriminate between a square and a triangle presented in a 5 msec tachistoscopic flash with 95–100 per cent accuracy. An essential feature of this trained performance was a programmed sequence of events in which the monkey learned to attend following self-triggering of the stimulus flash.
J.W. Adkins, L.G. Fehmi, D.B. Lindsley
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Wavelet based fuzzy perceptual mask for images
2009 16th IEEE International Conference on Image Processing (ICIP), 2009One of the characteristics of the Human Visual System (HVS) is to model the sensitivity of the human eye at each coordinate location in the image. This paper explores the use of fuzzy logic for building a non-linear HVS model for perceptual masking in wavelet domain.
Mukesh C. Motwani +2 more
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Evaluative conditioning of pattern-masked nonwords requires perceptual awareness.
Journal of Experimental Psychology: Learning, Memory, and Cognition, 2020Data, analysis scripts, and materials for the ...
Bading, Karoline Corinna +1 more
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Perceptual development and auditory backward recognition masking.
Developmental Psychology, 1991Three amplitude-discrimination experiments within a backward masking task were carried out to study whether young children have a slower rate of perceptual processing than do adults. Rate of processing was defined within an explicit model of perceptual performance that allows the investigator to determine if rate is responsible for developmental ...
Dominic W. Massaro, Deborah Burke
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Bag Valve Mask Ventilation as a Perceptual-Cognitive Skill
Human Factors: The Journal of the Human Factors and Ergonomics Society, 2017Objective This study used a high-fidelity infant mannequin to examine the relationship between the quality of bag valve mask ventilation (BVMV) and how providers of varying levels of experience use visual feedback (e.g., electronic vital signs) to guide their performance.
Joel M, Mumma +5 more
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Evidence for perceptual masking of the discriminative morphine stimulus
Psychopharmacology, 1989Morphine-amphetamine and morphine-naltrexone interactions were examined in three groups of White Carneaux pigeons (n = 3), which were trained in a two-choice drug discrimination procedure under a FR-30 schedule of food reinforcement using 3.2 mg/kg morphine and saline as discriminative stimuli.
D V, Gauvin, A M, Young
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