Search results for "PERCEPTION"
showing 10 items of 3634 documents
2019
During speech perception listeners rely on multimodal input and make use of both auditory and visual information. When presented with speech, for example syllables, the differences in brain responses to distinct stimuli are not, however, caused merely by the acoustic or visual features of the stimuli. The congruency of the auditory and visual information and the familiarity of a syllable, that is, whether it appears in the listener’s native language or not, also modulates brain responses. We investigated how the congruency and familiarity of the presented stimuli affect brain responses to audio-visual (AV) speech in 12 adult Finnish native speakers and 12 adult Chinese native speakers. They…
Role of aroma–matrix interactions on perception of structured emulsions
2011
The impact of the composition of spreads on in vivo aroma release and aroma perception was investigated using online proton transfer reaction mass spectrometry (PTR-MS) and sensory methodologies. Consumption of model products spread on bread induced a significant increase in aroma release and better discrimination in aroma perception, compared to when the product was tasted pure from a spoon. Dynamic release of a series of 10 aroma compounds was slower with the increase in solid fat content, and the quantity decreased when proteins were added. Sensory ranking of model products mostly confirmed the release results.
Salt and Aroma Compound Distributions Influence Flavour Release and Temporal Perception While Eating Hot-Served Flans.
2021
International audience; To counteract the negative effect of salt overconsumption on health, strategies have been developed to reduce the salt content in food products. Among them, two promising strategies based on odour-induced saltiness enhancement and the heterogeneous distribution of flavour compounds were combined and assessed in four-layer cream-based snacks. To investigate the relationship between saltiness enhancement, temporal release and perception of flavour compounds in hot snacks with heterogeneous distribution of salt and aroma compounds, complementary techniques were used: nose space PTR-Tof-MS (Proton Transfer Reaction-Time of Flight–Mass Spectrometry) to assess the release …
Impact of ethanol on the perception of wine odorant mixtures
2007
International audience; Several studies have focused on perceptual interactions in binary odor mixtures, but few on more complex mixtures. The aroma of wine is an example of a complex odor mixture. Our aim was to assess the impact of ethanol on the perception of mixtures of Woody (whiskey lactone) and Fruity (isoamyl acetate) odorants commonly found, physico-chemically and perceptually, in wine. Physico-chemically, reduced whiskey lactone volatility was observed in hydro-alcoholic solutions. Perceptually, a synergy effect by the Woody on the Fruity odor was observed in aqueous solutions, which disappeared with the addition of ethanol. Conversely, the Woody odor was masked in both aqueous an…
Perception of wine quality according to extrinsic cues: The case of Burgundy wine consumers
2013
International audience; The value consumers put on specific products depends on the information they can get from experience and from the commercial description of the products. For wine, this information derives mainly from tasting (intrinsic factors) and from the packaging of the bottles (extrinsic factors). The main purpose of this work is to compare different methodologies able to disclose the extrinsic factors playing an important role in wine quality perception of consumers. Twenty-four Chardonnay commercial wines were selected according to different criteria such as origin, denomination of origin and information provided in the label or back label. Forty-eight participants living in …
Student participation in dialogue in individual subject curriculum meetings: students’ and parents’ perceptions
2020
While there has been considerable research on students with special educational needs and their parents’ participation at individual subject curriculum (ISC) meetings at school, less attention has ...
Validación de un instrumento de evaluación del comportamiento sexual de personas con discapacidad intelectual para padres (ECS-PA)
2019
La reciente normalización de la sexualidad y de los derechos sexuales entre las personas con Discapacidad Intelectual (DI) ha hecho que se incremente el número de iniciativas dirigidas a mejorar sus conocimientos y habilidades mediante programas de educación afectivo-sexual pero dichos programas requieren instrumentos de evaluación fiables que permitan identificar sus necesidades y puedan ser sensibles al cambio tras la intervención. En dicha valoración deben confluir sus percepciones, las de los profesionales que se ocupan de ellos y las de sus padres para asegurar la veracidad de la información obtenida, pero lamentablemente carecemos de instrumentos psicométricos válidos y fiables tanto …
Abuso sexual y discapacidad intelectual: cómo identifican y valoran la experiencia las personas con discapacidad intelectual y los profesionales que …
2017
El abuso sexual es un tema que afecta, de manera especial, a las personas con discapacidad intelectual. En su abordaje, el rol de los profesionales resulta clave tanto en la identificación como en la prevención y tratamiento de la problemática. Sin embargo, existen pocos estudios que examinen hasta qué punto la estimación de los profesionales coindice con la experiencia real de las personas con discapacidad intelectual. Por ese motivo, el presente estudio analiza la percepción de riesgo y la propia vivencia del abuso sexual de las personas con discapacidad intelectual, en comparación con la identificación y valoración realizada por los profesionales que les atienden. Para ello, participaron…
Autonomic Modulation Improves in Response to Harder Performances While Playing Wind Instruments
2020
Background: Despite inducing autonomic benefits similar to exercise, playing wind instruments is a physical, and cognitive task of high attentional requirements, which demands musicians maximal efforts, leading to sympathetic hyperarousal and autonomic worsening. In this context of controversy, it remains unknown the autonomic response to playing highly demanding music performances, as compared to an easier one, which might be of interest in wind musicians' cardiovascular health. Objectives: This study aimed to investigate differences in the autonomic control of the heart with regard to task demands (TD), avoiding emotional influences (rehearsal performance). Methods: Eight healthy male pro…
Simplification Of Painting Images For Tactile Perception By Visually Impaired Persons
2018
The access to artworks by visually impaired people requires a simplified tactile representation of paintings. This paper presents the difficulties of direct transcription of artworks and the test results of simplification of the paintings done by Australian Aborigines which don't have purely visual elements such as shadows or perspective. The implemented methodology is bottom-up: it starts with tactile representation of basic elements relevant to the understanding of the whole painting, then their association into more complex concepts. The context of associations is explained through audio-description. The results of the tests with visually impaired persons are analyzed and explained.