نتایج جستجو برای: masking

تعداد نتایج: 11622  

Journal: :Journal of vision 2007
Varinthira Duangudom Gregory Francis Michael H Herzog

After more than a century of research, the mechanisms underlying visual masking are still hotly debated. One key characteristic of masking is that variations in the stimulus onset asynchrony (SOA) between the target and the mask can lead to either monotonic reductions in the effect of the mask on the target (A-type masking) or an increase in masking for intermediate SOAs and then a decrease in ...

Journal: :Attention, perception & psychophysics 2010
Lester C Loschky Bruce C Hansen Amit Sethi Tejaswi N Pydimarri

In the present article, we investigated whether higher order image statistics, which are known to be carried by the Fourier phase spectrum, are sufficient to affect scene gist recognition. In Experiment 1, we compared the scene gist masking strength of four masking image types that varied in their degrees of second- and higher order relationships: normal scene images, scene textures, phase-rand...

Journal: :Schizophrenia research 2005
Yuri Rassovsky Michael F Green Keith H Nuechterlein Bruno G Breitmeyer Jim Mintz

Schizophrenic patients consistently demonstrate performance deficits on visual masking procedures. In visual masking, the subject's ability to process a target stimulus is reduced by another stimulus (mask) presented either before (forward masking) or after (backward masking) the target. Masking procedures employed in schizophrenia research have used several experimental paradigms. Most early s...

Journal: :Nihon Jibiinkoka Gakkai kaiho 1992
K Murai M Ogasawara T Watanabe T Kanai Y Kon T Tsuiki

The tinnitus masking test, in which the minimum masking levels of tinnitus by various pure tones and band noises are measured and used to produce tinnitus masking curves, is one of the methods for evaluating the character of tinnitus. At present, the tinnitus masking test is usually performed using a pure tone audiometer. In this study, tinnitus masking curves were produced using a self-recordi...

Journal: :Journal of vision 2010
Deborah Apthorp John Cass David Alais

We investigated whether the oriented trails of blur left by fast-moving dots (i.e., "motion streaks") effectively mask grating targets. Using a classic overlay masking paradigm, we varied mask contrast and target orientation to reveal underlying tuning. Fast-moving Gaussian blob arrays elevated thresholds for detection of static gratings, both monoptically and dichoptically. Monoptic masking at...

Journal: :iranian red crescent medical journal 0
behnaz khazai department of pediatrics, imam reza hospital, mashhad university of medical sciences, mashhad, ir iran rahim vakili department of pediatrics, imam reza hospital, mashhad university of medical sciences, mashhad, ir iran; department of pediatrics, imam reza hospital, mashhad university of medical sciences, p. o. box: 91379-13316, mashhad, ir iran. tel: +98-5138593045, fax: +98-5138591057

conclusions this case highlights the fact that fhr and ghd may coexist, with possible masking effect of one on the other, thereby misleading the approach, posing large impacts on therapy, which has historically been a difficult challenge in fhr patients. introduction coincided familial hypophosphatemic rickets (fhr) and hypopituitarism is a rare condition. growth hormone deficiency (ghd) evalua...

Journal: :Proceedings of the ... AAAI Conference on Artificial Intelligence 2023

Transformer-based autoregressive (AR) methods have achieved appealing performance for varied sequence-to-sequence generation tasks, e.g., neural machine translation, summarization, and code generation, but suffer from low inference efficiency. To speed up the stage, many non-autoregressive (NAR) strategies been proposed in past few years. Among them, conditional masked language model (CMLM) is ...

Journal: :Psychophysiology 2004
Jonathan K Wynn Michael E Dawson Anne M Schell

This experiment demonstrated a relationship between prepulse inhibition (PPI) of the startle eyeblink and visual backward masking in college students. It was hypothesized that recovery from backward masking effects is due in part to sensory gating, as assessed by auditory and visual PPI. Visual presentations of letters served as targets or visual prepulses in an intermixed session of backward m...

2012
Oldooz Hazrati Jaewook Lee Philipos C. Loizou

A blind (non-ideal) time-frequency (T-F) masking technique is proposed for suppressing reverberation. A binary mask is estimated at each T-F unit by extracting a single variance-based feature from the reverberant signal and comparing its value against an adaptive threshold. The performance of the estimated binary mask is evaluated using intelligibility listening tests with hearing impaired list...

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