This paper presents three effective proposals for a twostage algorithm for one-microphone reverberant speech enhancement. The original algorithm is divided into two blocks: one that deals with the coloration effect, due to the early reflections, and the other for reducing the long-term reverberation. The proposed modifications consider changing the linearprediction model order, the adaptation s...

The three experiments reported here test whether object-modulated attentional spreading can be obtained when the target location is 100% certain. Experiment 1 uses the reaction time (RT)-based flanker task similar to Shomstein and Yantis (2002), and replicates the null result of the object-modulated attentional spreading. RT and accuracy (ACC) have been shown to reflect different processes: pos...

The concept of holistic processing is a cornerstone of face-recognition research. In the study reported here, we demonstrated that holistic processing predicts face-recognition abilities on the Cambridge Face Memory Test and on a perceptual face-identification task. Our findings validate a large body of work that relies on the assumption that holistic processing is related to face recognition. ...

A simple and high-speed F0 extractor with high temporal resolution is proposed based on a waveform symmetry measure. Strictly speaking, it is not an F0 extractor. Instead, it is a detector of the lowest prominent sinusoidal component with a salience measure. It can make use of an F0 refinement procedure, when the signal under investigation is a sum of harmonic sinusoidal components. The refinem...

Since a content-based image retrieval (CBIR) system services people, its image characterization and similarity measure must closely follow perceptual characteristics. In this study, we enumerate a few psychological and physiological invariants and show how they can be considered by a CBIR system. We propose distance functions to measure perceptual similarity for color, shape, and spatial distri...

The brain's perceptual stimuli are constantly changing: some of these changes are treated as invariances and are suppressed, whereas others are selectively amplified, giving emphasis to the distinctions that matter most. The starkest form of such amplification is categorical perception. In speech, for example, a continuum of phonetic stimuli gets carved into perceptually distinct categories. We...

The current research sets out to identify and scrutinize the impact of the CEO’s perceptual biases in judgment and economic decision-making on the reporting quality of the firms listed on the Tehran Stock Exchange. Adopting a mixed method, the present study first seeks to detect the components and indices of CEO’s perceptual biases via critical appraisal and with the special participation of 10...

This paper addresses the issue of modelling human forms of surprise and curiosity in an artificial perceptual agent. The following statements support our approach: humans are surprised when they perceive something that they did not expect; humans feel desire to learn more (i.e., feel curiosity) about novel (possibly unexpected) objects, usually manifested by focusing the senses on those objects...