Results 261 to 270 of about 363,289 (302)

Rate control for videophone using local perceptual cues

IEEE Transactions on Circuits and Systems for Video Technology, 2005
We present a method for extracting local visual perceptual cues and its application for rate control of videophone, in order to ensure the scarce bits to be assigned for maximum perceptual coding quality. The optimum quantization step is determined with the rate-distortion model considering the local perceptual cues in the visual signal. For extraction
null Xiaokang Yang, null Weisi Lin, null Zhongkang Lu, null Xiao Lin, S. Rahardja, null EePing Ong, null Susu Yao   +6 more
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Contribution of acoustic cues to prominence ratings for four Mandarin vowels

The Journal of the Acoustical Society of America, 2023
The acoustic cues for prosodic prominence have been explored extensively, but one open question is to what extent they differ by context. This study investigates the extent to which vowel type affects how acoustic cues are related to prominence ratings provided in a corpus of spoken Mandarin.
Wei Zhang, Meghan Clayards
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A subtle threat cue, heart rate variability, and cognitive performance

Psychophysiology, 2011
AbstractThis research was designed to extend the literature on heart rate variability (HRV) in cognitive performance contexts by examining whether a subtle threat cue (the color red) in a test environment influences HRV reactivity and whether HRV reactivity is associated with change in cognitive performance.
Andrew J, Elliot, Vincent, Payen, Jeanick, Brisswalter, Francois, Cury, Julian F, Thayer   +4 more
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Inhibition from part-list cues and rate of recall.

Journal of Experimental Psychology: Human Learning and Memory, 1977
Subjects recalled words from studied lists for 10 min. in a free-recall situation or in the presence of other list or extralist words. The presence of both types of context words reduced recall relative to free recall, but list-word context had a greater inhibiting effect than extralist word context, and only the list-word context produced a lower rate
Henry L. Roediger, Christina C. Stellon, Endel Tulving   +2 more
openaire   +1 more source

Menstrual cycle influences on cue-induced smoking cravings and heart rate variability

Behavioural Pharmacology, 2023
Women experience greater difficulties in quitting smoking than men, though the hormonal factors contributing to this sex difference remain to be clarified. The current study aimed to examine menstrual cycle effects on smoking cue-induced cravings as well as examine dynamic reproductive hormone change as a potential mediator underlying any cycle effects
Ashley, Ethier, Laurie, Sykes Tottenham, Jyotpal, Singh, J Patrick, Neary, Jaroslaw, Piskorski, Jennifer L, Gordon   +5 more
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Rhythmic and speech rate effects in the perception of durational cues

Attention, Perception, & Psychophysics, 2021
Listeners' perception of temporal contrasts in spoken language is highly sensitive to contextual information, such as variation in speech rate. The present study tests how rate-dependent perception is also mediated by distal (i.e., temporally removed) rhythmic patterns.
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Abstract 13872: Cue Restricted Smoking Increases Quit Rates With Varenicline

Circulation, 2020
Introduction: Varenicline effectively helps smokers quit by reducing withdrawal symptoms and blocking the reward of smoking. However, most quitters return to smoking within 1 year. “Cue-restricted smoking” is a behavioral technique designed to increase quit rates by asking smokers attempting to quit to restrict smoking to the ...
Jaqueline Scholz, Tania O Abe, Patricia Gaya, Iana R Moraes, Bianca Bellini, Paulo R Tomaz, Juliana R Santos, Paulo C Santos, Serena Tonstad   +8 more
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Response Rates Are Governed More by Time Cues Than Contingency

Timing & Time Perception, 2013
Classical conditioning is normally thought to strengthen associations between stimuli, and instrumental conditioning is thought to select responses. This difference has been used to account for the usual result that instrumental conditioning produces higher response rates than classical conditioning.
David M. Freestone, Mika L. M. MacInnis, Russell M. Church   +2 more
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Rate of Apparent Magnification as a Cue to Distance: Laboratory Investigation

Perceptual and Motor Skills, 1972
O s made judgments of the apparent rate of magnification of an approaching object as a cue to its distance. Os were separated into 2 groups of 20 on the basis of their relative field dependency. Os viewed a radially moving target which provided the sensation of movement in depth. 2 target sizes and 2 values of rate of movement were used.
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Reducing the performance-cue bias in work behavior ratings: Can groups help?

Journal of Applied Psychology, 2002
The authors examined whether the performance-cue bias can be reduced by relying on groups as raters. Study participants (N = 333) were provided with feedback regarding the performance of a workgroup and, after observing the group, assigned to an individual or group rater condition to complete a behavioral rating instrument.
Richard F, Martell, Keith N, Leavitt
openaire   +2 more sources