نتایج جستجو برای: masking effect

تعداد نتایج: 1651124  

Journal: :Cortex; a journal devoted to the study of the nervous system and behavior 2002
Keith R Laws Verity C Leeson Tim M Gale

It is frequently assumed that because compared to nonliving things, living things are less familiar, have lower name frequency, and are more visually complex, this makes them more difficult to name by patients and normal subjects. This has also been implicitly accepted as an explanation for the greater incidence of living thing disorders. Patient studies do not, however, typically contain any p...

Journal: :Attention, perception & psychophysics 2017
Mickael L D Deroche John F Culling Mathieu Lavandier Vincent L Gracco

A difference in fundamental frequency (ΔF0) and a difference in spatial location (ΔSL) are two cues known to provide masking releases when multiple speakers talk at once in a room. We examined situations in which reverberation should have no effect on the mechanisms underlying the releases from energetic masking produced by these two cues. Speech reception thresholds using both unpredictable ta...

2003
Nao Hodoshima Takayuki Arai Tsuyoshi Inoue Akiko Kusumoto

One of the reasons that reverberation degrades speech intelligibility is the effect of overlap-masking, in which segments of an acoustic signal are affected by reverberation components of previous segments [Bolt et al., 1949]. To reduce the overlap-masking, Arai et al. suppressed steady-state portions having more energy, but which are less crucial for speech perception, and confirmed promising ...

Journal: :J. Electronic Imaging 2005
Hiroaki Kotera Hui Wang

2010
DOMINIC W. MASSARO WENDY L. IDSON

A series of experiments explored the temporal course of the perceived duration of an auditory stimulus. A backward recognition masking paradigm was utilized, in which the subject was to determine which of two target durations was presented on a given trial. The target tone was followed, after a variable silent intertone interval, by a masking tone which could assume one of three possible durati...

Journal: :Journal of vision 2014
Eric Feczko Gordon L Shulman Steven E Petersen John R Pruett

Findings from diverse subfields of vision research suggest a potential link between high-level aspects of face perception and concentric form-from-structure perception. To explore this relationship, typical adults performed two adaptation experiments and two masking experiments to test whether concentric, but not nonconcentric, Glass patterns (a type of form-from-structure stimulus) utilize a p...

Journal: :Sig. Proc.: Image Comm. 2002
Marcus J. Nadenau Julien Reichel Murat Kunt

Various image processing applications exploit a model of the human visual system (HVS). One element of HVSmodels describes the masking-effect, which is typically parameterized by psycho-visual experiments that employ superimposed sinusoidal stimuli. Those stimuli are oversimplified with respect to real images and can capture only very elementary maskingeffects. To overcome these limitations a n...

2015
Oscar Reparaz Begül Bilgin Svetla Nikova Benedikt Gierlichs Ingrid Verbauwhede

In this paper we investigate relations between several masking schemes. We show that the Ishai–Sahai–Wagner private circuits construction is closely related to Threshold Implementations and the Trichina gate. The implications of this observation are manifold. We point out a higher-order weakness in higher-order Threshold Implementations, suggest a mitigation and provide new sharings that use a ...

Journal: :Journal of psychiatric research 2006
Jonathan K Wynn Bruno Breitmeyer Keith H Nuechterlein Michael F Green

Schizophrenia patients exhibit numerous deficits on visual processing tasks, ranging from very early stages of visual processing (e.g., backward masking) to the later working memory stages (e.g., delayed match-to-sample, N-back). However, little is known about deficits in an intermediate stage of visual information processing, namely short term visual memory (STVM). The attentional blink (AB) p...

Journal: :The Journal of the Acoustical Society of America 1976
J R Lakey

Psychometric functions were obtained for the interaural conditions NoSo and NoS•r in both forward and backward masking using masks of different durations. In addition, data were collected for the Sm, S•r, and So conditions without an external mask. The slope parameter k and the signal level required for 76% correct detection were compu,tcd with a least-squares technique. The results were that b...

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