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*  List of MeSH codes (F02)
... perceptual closure MeSH F02.463.593.932.733 --- perceptual masking MeSH F02.463.593.932.869 --- space perception MeSH F02.463. ... perceptual masking MeSH F02.463.593.071.700 --- pitch perception MeSH F02.463.593.071.700.408 --- pitch discrimination MeSH ... perceptual distortion MeSH F02.463.593.696 --- sensory deprivation MeSH F02.463.593.710 --- sensory thresholds MeSH F02.463. ...
*  Lossy compression
Masking and Perceptual Coding, Victor Lombardi New jpegtran features "aptX HD - lossless or lossy?". AVHub. 2016-11-22. ... "Although one main goal of digital audio perceptual coders is data reduction, this is not a necessary characteristic. As we ... From this point of view, perceptual encoding is not essentially about discarding data, but rather about a better representation ... perceptual coding: it transforms the raw data to a domain that more accurately reflects the information content. For example, ...
*  Weapon focus
Yantis, Steven; Jonides, John (1996). "Attentional Capture by Abrupt Onsets: New Perceptual Objects or Visual Masking?" (PDF). ...
*  Flash suppression
Related perceptual illusions include backward masking, binocular rivalry, motion induced blindness and motion-induced ... In both flash suppression and binocular rivalry, perceptual conflict between the two eyes is required for the perceptual effect ... It can erase an image presented at the fovea (which usually is much more resistant to perceptual suppression, unlike, for ... Vision Res 24, 471 478, Sheinberg, D.L., and Logothetis, N.K. (1997) The role of temporal cortical areas in perceptual ...
*  Susana Martinez-Conde
Her research on visual awareness has concentrated on the neural bases of perceptual fading, visual masking, and attentional ... Troxler fading and other types of perceptual fading illusions, and various perceptual and attentional illusions in stage magic ... Her research bridges perceptual, cognitive, and oculomotor neuroscience. She is best known for her studies on illusions, eye ... Much of Martinez-Conde's research focuses on how our brains create perceptual and cognitive illusions in everyday life. She has ...
*  Psychoacoustics
Definition of: perceptual audio coding Java appletdemonstrating masking HyperPhysics Concepts-Sound and Hearing The MP3 as ... The effects of backward masking is weaker than forward masking. The masking effect has been widely used in psychoacoustical ... A masked signal can be heard even though it is weaker than the masker. Masking happens when a signal and a masker are played ... Masking effects are also used for audio encoding. The masking effect is used in lossy encoders. It can eliminate some of the ...
*  Response priming
Albrecht, T., Klapƶtke, S., & Mattler, U.: Individual differences in metacontrast masking are enhanced by perceptual learning. ... 3 could be produced depending on stimulus conditions: complete visibility, complete masking, type-A masking, and type-B masking ... Criticism of UTT Visual masking Auditory masking Attentional blink Fehrer, E., & Raab, D. Reaction time to stimuli masked by ... Type-B masking can occur with metacontrast masking but critically depends on stimulus properties of primes and targets. In ...
*  Auditory processing disorder
Sweetow RW, Reddell RC (1978). "The use of masking level differences in the identification of children with perceptual problems ... Cacace and McFarland have argued that APD should be defined as a modality-specific perceptual dysfunction that is not due to ... Manning WH, Johnston KL, Beasley DS (February 1977). "The performance of children with auditory perceptual disorders on a time- ... The authors state that "a clearer understanding of the relative contributions of perceptual and non-sensory, unimodal and ...
*  MP3
... lossy audio data compression algorithm takes advantage of a perceptual limitation of human hearing called auditory masking ... The psychoacoustic masking codec was first proposed in 1979, apparently independently, by Manfred R. Schroeder, et al. from ... Both Krasner and Schroeder built upon the work performed by Eberhard F. Zwicker in the areas of tuning and masking of critical ... Another predecessor of the MP3 format and technology is to be found in the perceptual codec MUSICAM based on an integer ...
*  Data compression
... nearly all of them using perceptual (i.e. masking) techniques and some kind of frequency analysis and back-end noiseless coding ... temporal masking-where a signal is masked by another signal separated by time. Equal-loudness contours may also be used to ... The perceptual models used to estimate what a human ear can hear are generally somewhat different from those used for music. ... LPC may be thought of as a basic perceptual coding technique: reconstruction of an audio signal using a linear predictor shapes ...
*  Visual selective attention in dementia
DLB patients' general slowness could have increased perceptual interference due to masking from distractors, and target ... In order to guide behaviour, only a small amount of that sensory input can be allowed to reach perceptual awareness. Therefore ... This suggests that the perceptual filtering component of selective attention is significantly impaired in DLB. Difficulties in ... It selects particular representations to enter perceptual awareness and therefore guide behaviour. Through this process, less ...
*  MPEG-1
Estimation of Perceptual Entropy Using Noise Masking Criteria, in Proc. ICASSP-88, pp. 2524-2527, May 1988. J. Johnston, ... The psychoacoustic model is based on the principles of auditory masking, simultaneous masking effects, and the absolute ... This perceptual trick is known as stereo irrelevancy. This can allow further reduction of the audio bitrate without much ... Of the two, it utilizes the global masking threshold level from the more critical pass, with the most difficult audio. In ...
*  Remember versus know judgements
Masked recognition priming is a manipulation which is known to increase perceptual fluency. Since know responses increase with ... Know responses are enhanced by manipulations which increase perceptual and conceptual fluency. For example, masked repetition ... However, recent studies have reported that there are some conceptual factors that influence knowing and some perceptual factors ... Gardiner, J.M., Gregg, V.H., Karayianni, I. (2006). Recognition memory and awareness: occurrence of perceptual effects in ...
*  Perceptual psychology
While behaviour is obvious, a person's thoughts and feelings are masked. This gives rise to the idea that the most common ... Any time you solve a problem, make a decision or make a memory you are using an example of perceptual psychology. Perceptual ... Perceptual psychology is a branch of cognitive psychology dealing with mental processes that we use in everyday living. ... Perceptual psychology is a subfield of cognitive psychology that is concerned specifically with the pre-conscious innate ...
*  Structural similarity
... while also incorporating important perceptual phenomena, including both luminance masking and contrast masking terms. ... Luminance masking is a phenomenon whereby image distortions (in this context) tend to be less visible in bright regions, while ... Overall, SSIM and its variants - such as Multiscale SSIM - are amongst the most widely used full-reference perceptual image and ... "Information Content Weighting for Perceptual Image Quality Assessment". IEEE Transactions on Image Processing. 20 (5): 1185- ...
*  Anthony Marcel
... prevent or stop perceptual processing. The first used five experiments with dichoptic masking, energy masking, the lexical ... distinguishing between the effects of energy masking and backward pattern masking. Marcel's research on unconscious perception ... He noticed the children making errors that indicated the masked words were acting as priming stimuli. This was suggestive of ... Marcel also researched the processing of polysemous words (e.g. difference in process of "palm" when preceded by masked word " ...
*  MPEG-1 Audio Layer II
This is called frequency masking. Perceptual audio codecs take advantage of this frequency masking by ignoring information at ... Like MP3, MP2 is a perceptual coding format, which means that it removes information that the human auditory system will not be ... As a predecessor of the MP3 format and technology, the perceptual codec MUSICAM is based on integer arithmetics 32 subbands ... The MP2 sub-band filter bank also provides an inherent "transient concealment" feature, due to the specific temporal masking ...
*  Stephen Macknik
Macknik's research focuses on the neural bases of perceptual and cognitive illusions. He has studied visual masking illusions, ... His research on visual awareness has concentrated on visual masking, and attentional misdirection in stage magic. Macknik and ... and visual masking of simple unattended targets are confined to areas in the occipital cortex beyond human V1/V2". Proc. Natl. ...
*  PEAQ
The key is masking, that describes the effect that a sound produces into another simultaneous sound. Masking depends on the ... Perceptual Evaluation of Speech Quality (PESQ) Perceptual Evaluation of Video Quality (PEVQ) Hearing-Aid Speech Quality Index ( ... This is the perceptual model of the encoding system. The spectral components are quantized and coded keeping the quantization ... PEAQ (Perceptual Evaluation of Audio Quality) is a standardized algorithm for objectively measuring perceived audio quality, ...
*  Critical band
Masking phenomena have wide implications, ranging from a complex relationship between loudness (perceptual frame of reference) ... upward spread of masking as described above. Loudness Psychoacoustics, Masking effects Auditory masking Consonance and ... The masked thresholds are calculated through simultaneous masking when the signal is played to the subject at the same time as ... The larger the critical bandwidth the lower the signal-to-noise ratio (SNR) and the more the signal is masked. Another concept ...
*  Auditory masking
Perceptual Consequences of Cochlear Damage, Oxford, Oxford University Press Moore, B.C.J. (1998) Cochlear Hearing Loss, London ... Masking which obscures a sound immediately preceding the masker is called backward masking or pre-masking and masking which ... Auditory masking in the frequency domain is known as simultaneous masking, frequency masking or spectral masking. Auditory ... Ipsilateral ("same side") masking is not the only condition where masking takes place. Another situation where masking occurs ...
*  Motion-induced blindness
Although to a lesser extent, MIB did nonetheless occur in the conditions where the perceptual occlusion was not taking place ( ... Grindley, G. C.; Townsend, Valerie (1965-06-01). "Binocular masking induced by a moving object". Quarterly Journal of ... Motion Induced Blindness (MIB) is a phenomenon of visual disappearance or perceptual illusions observed in the lab, in which ... Hsu, L. C.; Kramer, P.; Yeh, S. L. (August 2010). "Monocular depth effects on perceptual fading". Vision Research. 50 (17): ...
*  PSQM
Besides perceptual modeling, the PSQM algorithm uses cognitive modeling such as loudness scaling and asymmetric masking in ... PSQM (Perceptual Speech Quality Measure) is a computational and modeling algorithm defined in ITU Recommendation ITU-T P.861 ... ITU-T Recommendation P.862: Perceptual evaluation of speech quality (PESQ): An objective method for end-to-end speech quality ... PSQM uses a psychoacoustical mathematical modeling (both perceptual and cognitive) algorithm to analyze the pre and post ...
*  Neuroscience of free will
When shown a masked and therefore invisible stimulus, participants were asked to either guess between a category or make a free ... Bode, S.; Sewell, D. K.; Lilburn, S.; Forte, J. D.; Smith, P. L.; Stahl, J. (2012). "Predicting Perceptual Decision Biases from ... Multivariate pattern analysis using EEG has suggested that an evidence based perceptual decision model may be applicable to ... Bode, Stefan; Bogler, Carsten; Haynes, John-Dylan (2013). "Similar neural mechanisms for perceptual guesses and free decisions ...
*  POLQA
Perceptual Evaluation of Speech Quality (PESQ) Perceptual Evaluation of Video Quality (PEVQ) Perceptual Evaluation of Audio ... This includes the modeling of masking effects in the frequency as well as in the temporal domain. The result is for each frame ... Perceptual differences between both signals are scored as differences. The perceptual psycho-acoustic model is based on similar ... POLQA (or Perceptual Objective Listening Quality Analysis), also known as ITU-T Rec. P.863 is an ITU-T Standard that covers a ...