Search Results
Results 51 - 100 of 1509
1 2 3 4 5 6 7 8 9 10 >
Ferdenzi Camille C Centre National de la Recherche Scientifique UMR5292, INSERM U1028, Centre de Recherche en Neurosciences de Lyon, Université Claude Bernard Lyon 1 Lyon, - - 2014
Olfactory perception, and especially hedonic evaluation of odors, is highly flexible, but some mechanisms involved in this flexibility remain to be elucidated. In the present study we aimed at better understanding how repeated exposure to odors can affect their pleasantness. We tested the hypothesis of an affective habituation to the ...
Franken J H JH Department of Applied Physics, Center for NanoMaterials, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The - - 2014
Magnetic domain-walls (DWs) with a preferred chirality exhibit very efficient current-driven motion. Since structural inversion asymmetry (SIA) is required for their stability, the observation of chiral domain walls in highly symmetric Pt/Co/Pt is intriguing. Here, we tune the layer asymmetry in this system and observe, by current-assisted DW depinning experiments, ...
Houot Benjamin B Department of Biology, West Virginia University Morgantown, WV, USA ; Centre des Sciences du Goût et de l'Alimentation, Université de Bourgogne Dijon, - - 2014
Animals use behaviors to actively sample the environment across a broad spectrum of sensory domains. These behaviors discretize the sensory experience into unique spatiotemporal moments, minimize sensory adaptation, and enhance perception. In olfaction, behaviors such as sniffing, antennal flicking, and wing beating all act to periodically expose olfactory epithelium. In ...
Klöcker Anne A Institute of Neuroscience, Université catholique de Louvain, Brussels, - - 2014
Tactile explorations with the fingertips provide information regarding the physical properties of surfaces and their relative pleasantness. Previously, we performed an investigation in the active touch domain and linked several surface properties (i.e. frictional force fluctuations and net friction) with their pleasantness levels. The aim of the present study was ...
Kuang Shenbing S State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, - - 2014
Senses of smells are often accompanied by simultaneous visual sensations. Previous studies have documented enhanced olfactory performance with concurrent presence of congruent color- or shape- related visual cues, and facilitated visual object perception when congruent smells are simultaneously present. These visual object-olfaction interactions suggest the existences of couplings between the ...
Zarka David D Laboratory of Neurophysiology and Movement Biomechanics, Université Libre de Bruxelles Brussels, - - 2014
Biological motion observation has been recognized to produce dynamic change in sensorimotor activation according to the observed kinematics. Physical plausibility of the spatial-kinematic relationship of human movement may play a major role in the top-down processing of human motion recognition. Here, we investigated the time course of scalp activation during ...
Rana Kunjan D KD Boston University, Brain and Vision Research Laboratory, Department of Biomedical Engineering, Boston, Massachusetts, United States of - - 2014
Alpha band power, particularly at the 10 Hz frequency, is significantly involved in sensory inhibition, attention modulation, and working memory. However, the interactions between cortical areas and their relationship to the different functional roles of the alpha band oscillations are still poorly understood. Here we examined alpha band power and ...
Ai Lei L The City College and Graduate Center, City University of New - - 2013
Previous studies have shown that the oscillations in the 8-12 Hz range in human influence sensory perception. In the current study, we examined whether both the power and phase of these mu/alpha oscillations predict successful conscious tactile perception. Near-threshold tactile stimuli were applied to the left hand while electroencephalographic (EEG) ...
Seo Han-Seok HS Department of Food Science, University of Arkansas, 2650 North Young Avenue, Fayetteville, AR 72704, USA - - 2013
This study aimed to determine 1) whether certain background sounds can be matched with specific odors and 2) whether the background sounds can increase pleasantness for their congruent odors. In Experiment 1, congruent sounds increased odor pleasantness, but not odor intensity, significantly more than incongruent sounds. Experiment 2 demonstrated that ...
Taboga Paolo P Department of Medical and Biological Sciences, University of Udine, Udine, - - 2013
In the 2012 Paralympic 100m and 200m finals, 86% of athletes with a unilateral amputation placed their unaffected leg on the front starting block. Can this preference be explained biomechanically? We measured the biomechanical effects of starting block configuration for seven non-amputee sprinters and nine athletes with a unilateral amputation. ...
Kelly Simon P SP Department of Biomedical Engineering, City College of the City University of New York, New York, New York 10031, and Trinity College Institute of Neuroscience and School of Psychology, Trinity College Dublin, Dublin 2, - - 2013
We frequently need to make timely decisions based on sensory evidence that is weak, ambiguous, or noisy resulting from conditions in the external environment (e.g., a cluttered visual scene) or within the brain itself (e.g., inattention, neural noise). Here we examine how externally and internally driven variations in the quality ...
Freeman Jeremy J Center for Neural Science and Department of Psychology, New York University, New York, New York - - 2013
Multivariate decoding analyses are widely applied to functional magnetic resonance imaging (fMRI) data, but there is controversy over their interpretation. Orientation decoding in primary visual cortex (V1) reflects coarse-scale biases, including an over-representation of radial orientations. But fMRI responses to clockwise and counter-clockwise spirals can also be decoded. Because these ...
Miyagi Atsushi - - 2013
Food development satisfying consumer preferences is very important for producing commodities. In the present study, 132 Japanese consumers performed sensory evaluation of deep-fried peanuts with varying frying times (2, 4, 6, 9, 12 and 15 min) at 150°C, and the relationships among sensory elements and physicochemical properties were investigated. The ...
Wang Yunyan Y Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York - - 2013
Motion direction is a crucial cue for predicting future states in natural scenes. In the auditory system, the mechanisms that confer direction selectivity to neurons are not well understood. Neither is it known whether sound motion is encoded independently of stationary sound location. Here we investigated these questions in neurons ...
Stuck Boris A - - 2013
Adaptation to smells is a well-known phenomenon and appears to be one of the major characteristics of olfaction. However, no standardized protocols for the psychophysical measurement of olfactory adaptation and recovery are available to date. Twenty normosmic participants were included. Hydrogen sulfide (H2S) and phenylethyl alcohol were used in different ...
Dounskaia Natalia - - 2013
Directional preferences have previously been demonstrated during horizontal arm movements. These preferences were characterized by a tendency to exploit interaction torques for movement production at the shoulder or elbow, indicating that the preferred directions depend on biomechanical, and not on visual perception-based factors. We directly tested this hypothesis by systematically ...
Nam Hosung - - 2013
Previous work has shown that velar stops are produced with a forward movement during closure, forming a forward (anterior) loop for a VCV sequence, when the preceding vowels are back or mid. Are listeners aware of this aspect of articulatory dynamics? The current study used articulatory synthesis to examine how ...
Madan Ellora E Department of Periodontics, Kothiwal Dental College and Research Center, Moradabad, Uttar Pradesh, - - 2013
Periodontal dressings have been used for several years as a protection over injured tissue to shield the area from further insult. Several dressings are commercially available. A recently introduced light-cured resin, claimed to be more biocompatible and esthetic, needs critical evaluation. To compare this dressing with most widely used non-eugenol ...
Jiawei Ou - - 2013
Progressive rendering is becoming a popular alternative to precomputational approaches to appearance design. However, progressive algorithms create images exhibiting visual artifacts at early stages. A user study investigated these artifacts' effects on user performance in appearance design tasks. Novice and expert subjects performed lighting and material editing tasks with four ...
Stolwijk N M - - 2013
Based on the windlass mechanism theory of Hicks, the medial longitudinal arch (MLA) flattens during weight bearing. Simultaneously, foot lengthening is expected. However, changes in foot length during gait and the influence of walking speed has not been investigated yet. The foot length and MLA angle of 34 healthy subjects ...
Nagy Ahmed - - 2013
We examined the impact of barium on the perceived taste intensity of seven different liquid tastant stimuli, and the modulatory effect that these differences in perceived taste intensity have on swallowing behaviors. Participants were 80 healthy women, stratified by age-group (<40; >60) and genetic taste status (supertasters; non-tasters). Perceived taste ...
Gotow Naomi - - 2013
The modalities examined in previous simultaneity judgment (SJ) were limited, to vision, audition, and touch. By contrast, olfaction and gustation have not been addressed to date in, SJ. In this study, we constructed a measurement system for performing SJ with three crossmodal, combinations of odor, taste, and light stimuli. Odor ...
Thaler Lore - - 2013
We have shown in previous research that motion processing through echolocation activates temporal-occipital cortex in blind echolocation experts. Here we investigated how neural substrates of echo-motion are related to neural substrates of auditory source-motion and visual motion. Three blind echolocation experts and twelve sighted echolocation novices underwent fMRI scanning while ...
Aoki Yasumichi - - 2013
On the basis of lattice simulations using highly improved staggered quarks for twelve-flavor QCD with several bare fermion masses, we observe a flavor-singlet scalar state lighter than the pion in the correlators of fermionic interpolating operators. The same state is also investigated using correlators of gluonic interpolating operators. Combined with ...
Bardi Lara - - 2013
Inversion effect in biological motion perception has been recently attributed to an innate sensitivity of the visual system to the gravity-dependent dynamic of the motion. However, the specific cues that determine the inversion effect in naïve subjects were never investigated. In the present study, we have assessed the contribution of ...
Korhonen Petri - - 2013
Background: Today's compression hearing aids with noise reduction systems may not manage transient noises effectively because of the short duration of these sounds compared to the onset times of the compressors and/or noise reduction algorithms. Purpose: The current study was designed to evaluate the effect of a transient noise reduction ...
Vélez Alejandro A Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, Minnesota - - 2013
In Cope's gray treefrog (Hyla chrysoscelis), thresholds for recognizing conspecific calls are lower in temporally modulated noise backgrounds compared with unmodulated noise. The effect of modulated noise on discrimination among different conspecific calls is unknown. In quiet, females prefer calls with relatively more pulses. This study tested the hypotheses that ...
Pellegrini Barbara - - 2013
Classical cross-country skiing can be performed using three main techniques: diagonal stride (DS), double poling (DP), and double poling with kick (DK). Similar to other forms of human and animal gait, it is currently unclear whether technique selection occurs to minimize metabolic cost or to keep some mechanical factors below ...
Kumano Hironori - - 2013
How the visual system reconstructs global patterns of motion from components is an important issue in vision. Conventional studies using plaids have shown that approximately one-third of neurons in cortical area MT respond to one-dimensional (1D) components of a moving pattern (component cells), whereas another third responds to the global ...
Land Rüdiger - - 2013
Extracellular local field potentials (LFPs) and multiunit activity (MUA) reflect the spatially integrated activity of multiple neurons in a given cortical structure. In the cat and primate visual cortices, these signals exhibit selectivity for visual stimulus features, such as orientation, direction of motion or spatial frequency. In the mouse visual ...
Poletti Martina M Department of Psychology, Boston University, Boston, MA 02215, USA. Electronic address: - - 2013
A new study has found that artificial occlusion of central vision leads to rapid emergence, and long-term maintenance of a new preferred retinal locus of fixation. These findings have important implications for the understanding of visual and oculomotor plasticity as well as for the development of rehabilitation techniques.
Hong Joo Young - - 2013
The aim of this study is to investigate the effect of audio-visual components on environmental quality to improve soundscape. Natural sounds with road traffic noise and visual components in urban streets were evaluated through laboratory experiments. Waterfall and stream water sounds, as well as bird sounds, were selected to enhance ...
Keshavarz Behrang - - 2013
Visually induced motion sickness (VIMS) is a well-known side-effect in virtual environments or simulators. However, effective behavioral countermeasures against VIMS are still sparse. In this study, we tested whether music can reduce the severity of VIMS. Ninety-three volunteers were immersed in an approximately 14-minute-long video taken during a bicycle ride. ...
Makin Alexis D J - - 2013
Humans are quicker to detect reflectional than rotational or translational symmetry, despite the fact that these patterns are equally regular. We were interested in the neural correlates of these perceptual effects. Participants viewed random, reflection, rotation, and translation patterns while we recorded EEG from the scalp. Half the participants classified ...
Belikov Alexander V - - 2013
We investigate the possibility of fitting the putative spectrum of gamma rays from annihilating dark matter at the galactic center by a superexponential template. By generating and analyzing mock data for several ongoing and future experiments (HESS, CTA, and DMA), we find that the preference for a superexponential template (over ...
Srivastava Shrikant - - 2013
Introduction:Bright light exposure can alter circulating serotonin levels, and alteration of available serotonin by acute selective serotonin reuptake inhibition significantly lowers sweet but not salt taste recognition thresholds. We tested the hypothesis that bright light exposure would increase sweet but not salt taste sensitivity in healthy adults.Methods:Fourteen healthy volunteers were ...
Wurdeman Shane R - - 2013
The purpose of this study was to determine the relationship between stride-to-stride fluctuations and prosthesis preference. Thirteen individuals with unilateral, transtibial amputation consented to participate. Individuals walked on a treadmill for 3 min with their prescribed and an alternate prosthesis. Stride-to-stride fluctuations were quantified with the largest Lyapunov exponent (LyE) ...
Macleod Toran D - - 2013
This study was conducted to investigate whether adding mass to subjects' feet affects the preferred transition speed (PTS), and to ascertain whether selected swing phase variables (maximum ankle dorsiflexion angular velocity, angular acceleration, joint moment, and joint power) are determinants of the PTS, based upon four previously established criteria. After ...
Mesik Juraj - - 2013
The ability of the visual system to rapidly adjust to changing environmental conditions is one of its key characteristics. Environmental changes can occur over a variety of timescales, however, and it remains unknown how the visual system adapts to these. Does a single mechanism control adaptation across all timescales, or ...
Shekhawat Giriraj Singh - - 2013
Objective: Tinnitus is a perceived sound that cannot be attributed to an external source. This study attempts to identify a prescription of amplification that is optimized as a first-fit setting for tinnitus relief. Design: Participants compared the effect of high frequency amplification on their tinnitus. Stimuli were 13 speech files ...
Brindle Richard A - - 2013
Step width is a spatiotemporal parameter that may influence lower extremity biomechanics at the hip and knee joint. The purpose of this study was to determine the biomechanical response of the lower extremity joints to step width changes during running. Lower extremity data from 30 healthy runners, half of them ...
Berger Christopher C - - 2013
Multisensory interactions are the norm in perception, and an abundance of research on the interaction and integration of the senses has demonstrated the importance of combining sensory information from different modalities on our perception of the external world [1-9]. However, although research on mental imagery has revealed a great deal ...
Auffarth Benjamin - - 2013
The main problem with sensory processing is the difficulty in relating sensory input to physiological responses and perception. This is especially problematic at higher levels of processing, where complex cues elicit highly specific responses. In olfaction, this relationship is particularly obfuscated by the difficulty of characterizing stimulus statistics and perception. ...
Harada Mayu - - 2013
BACKGROUND: Hyperthymic temperament has been generally accepted as one of premorbid temperament of bipolar disorders. Since recent several studies indicate an association between illuminance and hyperthymic temperament, it can be hypothesized that more hyperthymic temperament subjects have a different threshold of brightness or darkness perception in comparison with less hyperthymic ...
D'Alonzo Marco - - 2013
Electro- or vibro-tactile stimulations were used in the past to provide sensory information in many different applications ranging from human manual control to prosthetics. The two modalities were used separately in the past, and we hypothesized that a hybrid vibro-electrotactile (HyVE) stimulation could provide two afferent streams that are independently ...
McIntyre-Robinson Andrew J K - - 2013
Hand and foot movements are made more reliably when both limbs move in the same direction at the same time (isodirectional), compared to when they are made in opposite directions (anisodirectional). We hypothesised that M1 intracortical facilitation may subserve hand-foot coordination, and reveal correlates that explain the preference for hand-foot ...
Wagman Jeffrey B - - 2013
Perception becomes increasingly scaled to environmental properties when feedback is provided about the perception of a given property. Understanding the process of calibration requires a description of the stimulation patterns to which perceivers become calibrated as a result of such feedback. Recent investigations using a transfer-of-calibration paradigm have shown that ...
de Haan Roel - - 2013
Many animals use visual motion cues for navigating within their surroundings. Both flies and vertebrates compute local motion by temporal correlation of neighboring photoreceptors, via so-called elementary motion detectors (EMDs). In the fly lobula plate and the vertebrate visual cortex the output from many EMDs is pooled in neurons sensitive ...
Hammett Stephen T ST Department of Psychology, Royal Holloway, University of London, Surrey, United Kingdom. - - 2013
The generation of a behaviorally relevant cue to the speed of objects around us is critical to our ability to navigate safely within our environment. However, our perception of speed is often distorted by prevailing conditions. For instance, as luminance is reduced, our perception of the speed of fast-moving patterns ...
Bidet-Ildei Christel - - 2013
In human newborns, spontaneous visual preference for biological motion is reported to occur at birth, but the factors underpinning this preference are still in debate. Using a standard visual preferential looking paradigm, 4 experiments were carried out in 3-day-old human newborns to assess the influence of translational displacement on perception ...
1 2 3 4 5 6 7 8 9 10 >