The goal of this longitudinal study in substitution voice after vertical and horizontal partial laryngectomy was i) to analyse perceptual and acoustic characteristics related to specific surgery, ii) to determine relevant acoustic measurements to classify voice quality. 30 male patients were recorded at 3, 6 and 12 months after surgery and 15 male controls. Two perceptual scales (GRB & IINFVo) ...

Binocular rivalry is a fascinating perceptual phenomenon that has been characterized extensively at the psychophysical level. However, the underlying neural mechanism remains poorly understood. In particular, the role of the early visual pathway remains controversial. In this study, we used voltage-sensitive dye imaging to measure the spatiotemporal activity patterns in cat area 18 evoked by di...

Although several color edge detectors have been proposed, most of them utilized Euclidean color distances in different color spaces to measure color differences. In this paper a set of color gradients based on color visual perception is proposed. These color gradients are designed in uniform color spaces and use perceptual color difference equations. In order to be able to study the gradients p...

BACKGROUND The present study investigated whether prochlorperazine affects vestibulo-ocular reflex (VOR) and vestibulo-perceptual function. METHODS We studied 12 healthy naïve subjects 3 h after a single dose of oral prochlorperazine 5 mg in a randomised, placebo-controlled, double-blind, crossover study in healthy young subjects. Two rotational tests in yaw were used: (1) a threshold task in...

An acceptability of segment duration changes in different speaking rates was studied to know perceptual characteristics for designing an objective naturalness measure in speech synthesis. Based on a series of our studies on intra-phrase positional dependency of perceptual acceptability, where listeners were more sensitive to the phrase-initial segment duration than the phrase-final one, we desi...

We propose a general method for gradient-based training of neural network (NN) models to scale multidimensional signal data. In the case of image data, the goal is to fit models that produce images of high perceptual quality, as opposed to simply a high peak signal to noise ratio (PSNR). There have been a number of perceptual image error measures proposed in the literature, the majority of whic...

Visual perception and eye movements are considered to be tightly linked. Diverse fields, ranging from developmental psychology to computer science, utilize eye tracking to measure visual perception. However, this prevailing view has been challenged by recent behavioral studies. Here, we review converging evidence revealing dissociations between the contents of perceptual awareness and different...

We examined how perceptual chunks of varying size in utterances can influence immediate memory of heard items (monosyllabic words). Using behavioral measures and event-related potentials (N400) we evaluated the quality of the memory trace for targets taken from perceived temporal groups (TGs) of three and four items. Variations in the amplitude of the N400 showed a better memory trace for items...

An acceptability of segment duration changes in different speaking rates was studied to know perceptual characteristics for designing an objective naturalness measure in speech synthesis. Based on a series of our studies on intra-phrase positional dependency of perceptual acceptability, where listeners were more sensitive to the phrase-initial segment duration than the phrase-final one, we desi...