نتایج جستجو برای: perceptual measure

تعداد نتایج: 395551  

2013
Jennifer S. Pardo

Phonetic convergence is highly variable across studies, measures, and analyses. The current paper describes a study that examined multiple acoustic measures in concert with a perceptual measure of phonetic convergence. The study employed a shadowing task in which multiple talkers shadowed words from a set of models. Across different scales of analysis, the acoustic measures were highly variable...

2003
EePing Ong Weisi Lin Zhongkang Lu Susu Yao Xiaokang Yang

Peak signal-to-noise ratio (PSNR) is not a good measure of perceived picture quality, especially at low bit rates of coding. This paper proposes a new approach for computing perceptual distortion for visual signal in order to provide an objective measure for perceptual quality at low bit rate coding in typically mobile communications. The regions with three major perceptually disturbing artefac...

2002
Preeti Rao

In sound compression and synthesis, it is valuable to have objective distance measures which can predict the perceived dissimilarity of two sounds. Furthermore it is desirable also to be able to estimate the extent of the dissimilarity or the quality difference between sounds. Since it is the perceived difference that needs to be quantified it can be expected that measures that are derived from...

2008
Dieter Naber

The Schwartz Cancer Fatigue Scale is a short, clinically relevant, well-tested instrument that measures two dimensions of cancer-related fatigue (physical and perceptual). The scale has been tested in heterogeneous patients during and following treatment and against other measures of fatigue. It continues to be a robust and parsimonious measure of fatigue. The Schwartz Cancer Fatigue Scale (SCF...

Journal: :Journal of vision 2011
Alexander Pastukhov Jochen Braun

Neural adaptation plays an important role in multistable perception, but its effects are difficult to discern in sequences of perceptual reversals. Investigating the multistable appearance of kinetic depth and binocular rivalry displays, we introduce cumulative history as a novel statistical measure of adaptive state. We show that cumulative history-an integral of past perceptual states, weight...

Journal: :journal of english studies 2011
dennis moradkhan samin mirtaheri

this study was an attempt to shed light on the relationship between perceptual learning styles and perceptual teaching styles of iranian efl learners and teachers. it further investigated the relationship between perceptual learning style and the age, gender, and proficiency of iranian efl learners. a total of 112 students and 23 teachers participated in this study. the data was collected using...

Journal: :Journal of neurophysiology 2016
Daniel R Lametti Leonie Oostwoud Wijdenes James Bonaiuto Sven Bestmann John C Rothwell

Neuroimaging studies suggest that the cerebellum might play a role in both speech perception and speech perceptual learning. However, it remains unclear what this role is: does the cerebellum help shape the perceptual decision, or does it contribute to the timing of perceptual decisions? To test this, we used transcranial direct current stimulation (tDCS) in combination with a speech perception...

Kh. Yaghmaie R. Davarzani, S. Mozaffari

Feature extraction is a main step in all perceptual image hashing schemes in which robust features will led to better results in perceptual robustness. Simplicity, discriminative power, computational efficiency and robustness to illumination changes are counted as distinguished properties of Local Binary Pattern features. In this paper, we investigate the use of local binary patterns for percep...

2017
Sakura Okada Hideyoshi Igata Takuya Sasaki Yuji Ikegaya

The hippocampus contains place cells representing spaces in an environment, and these place cells have been suggested to play a fundamental role in the formation of a cognitive map for spatial processing. However, how alterations in the firing patterns of place cells in response to aversive events encode the locations tied to these aversive events is unknown. Here, we analyzed spiking patterns ...

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