This study proposes an approach to improve the perceptual quality of speech separated by binary masking through the use of reconstruction in the time-frequency domain. Non-negative matrix factorization and sparse reconstruction approaches are investigated, both using a linear combination of basis vectors to represent a signal. In this approach, the short-time Fourier transform (STFT) of separat...

Observers can rapidly perform a variety of visual tasks such as categorizing a scene as open, as outdoor, or as a beach. Although we know that different tasks are typically associated with systematic differences in behavioral responses, to date, little is known about the underlying mechanisms. Here, we implemented a single integrated paradigm that links perceptual processes with categorization ...

this study was intended first to categorize the l2 learners in terms of their learning style preferences and second to investigate if their learning preferences are related to lexical inferencing. moreover, strategies used for lexical inferencing and text related issues of text density and parts of speech were studied to determine their moderating effects and the best predictors of lexical infe...

A crucial step in image compression is the evaluation of its performance, and more precisely the available way to measure the final quality of the compressed image. Usually, to measure performance, some measure of the covariation between the subjective ratings and the degree of compression is performed between rated image quality and algorithm. Nevertheless, local variations are not well taken ...

This paper assesses IJV marketing performance in the Republic of Thailand, as opposed to general business performance. Furthermore, the paper develops an objective measure to assess IJV marketing performance and compares two different types of measures for measuring IJV marketing performance, a subjective measure and an objective measure, and finds both measures to be significantly correlated. ...

A perceptually adaptive scheme for image watermarking by use of the bit inverting transformation is developed. The transformation can change a signal level by both inverting a specified bit and altering the level at random within a limited range. From the analysis of the transformation properties, a perceptual model with two kinds of measures of level distortion is assumed for evaluating subjec...

The goal of this study was to assess perceptual and thought disturbance, as indexed by the Ego Impairment Index (EII; Perry & Viglione, 1991), a Rorschach-derived measure, across the schizophrenia spectrum. We hypothesized that there would be an increase in EII scores (indicating increased disturbance) across the spectrum from nonpatients to severely disturbed, hospitalized schizophrenia patien...

Face recognition is thought to rely on holistic processing, where the entire face is processed as a single unitary object. The nature of this holism is often assumed to be perceptual, however recent work applying the General Recognition Theory (GRT) framework suggests that holistic processing of faces may arise from decisional factors. Using Monte Carlo simulations, we examined how known violat...

The present study examined the temporal stationarity of the performance of 16 schizophrenic patients and 16 controls matched for age and sex in a bimanual coordination task and a perceptual task. In the motor task, rhythmic finger oscillations (alternating activity of homologue muscle groups) at increasing speed levels resulted in two measures, the preferred oscillation frequency and the critic...