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PLoS ONE, 2009 The perception of brightness depends on spatial context: the same stimulus can appear light or dark depending on what surrounds it. A less well-known but equally important contextual phenomenon is that the colour of a stimulus can also alter its brightness. Specifically, stimuli that are more saturated (i.e.
Corney, D +3 more
openaire +7 more sources
Sonification as a possible stroke rehabilitation strategy
Frontiers in Neuroscience, 2014 Despite cerebral stroke being one of the main causes of acquired impairments of motor skills worldwide, well-established therapies to improve motor functions are sparse.
Daniel S. Scholz +6 more
doaj +1 more source
Applying Classical and Intelligence Techniques for Digital Image Contrast Enhancement [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2008 Modern digital camera technology has produced huge services for the users from different ages and specifications .It made it easer to have images, but the user still needs to enhance those images, which have some problems when taken by the camera, for ...
Alyaa taqi
doaj +1 more source
Achromatic Cues Are Important for Flower Visibility to Hawkmoths and Other Insects
Frontiers in Ecology and Evolution, 2022 Studies on animal colour vision typically focus on the chromatic aspect of colour, which is related to the spectral distribution, and disregard the achromatic aspect, which is related to the intensity (“brightness”) of a stimulus.
Casper J. van der Kooi, Almut Kelber
doaj +1 more source
Age and Ageing, 2008 the size of the burden of unmet needs of older people living in the community is unknown. We aim to validate a brief postal questionnaire, the Brief Risk Identification of Geriatric Health Tool (BRIGHT) questionnaire, to find cases of older people with disabilities (case-finding) living in the community.community-dwelling patients over the age of 75 ...
Christine McLean +4 more
openaire +3 more sources
Properties of bright squeezed vacuum at increasing brightness [PDF]
Physical Review Research, 2020 Bright squeezed vacuum (BSV) is a non-classical macroscopic state of light, which can be generated through high-gain parametric down-conversion or four-wave mixing. Although BSV is an important tool in quantum optics and has a lot of applications, its theoretical description is still not complete.
Maria V. Chekhova +13 more
openaire +4 more sources
Frontiers in Human Neuroscience, 2014 Previous work demonstrated that perceived surface reflectance (lightness) can be modeled in simple contexts in a quantitatively exact way by assuming that the visual system first extracts information about local, directed steps in log luminance, then ...
Michael E Rudd, Michael E Rudd
doaj +1 more source
Dark-Bright Discrete Solitons: A Numerical Study of Existence, Stability and Dynamics [PDF]
Physica D 240 (2011) 767-778, 2010 In the present work, we numerically explore the existence and stability properties of different types of configurations of dark-bright solitons, dark-bright soliton pairs and pairs of dark-bright and dark solitons in discrete settings, starting from the anti-continuum limit. We find that while single discrete dark-bright solitons have similar stability
arxiv +1 more source
Intrinsic Brightness Temperatures of AGN Jets [PDF]
, 2006 We present a new method for studying the intrinsic brightness temperatures of the parsec-scale jet cores of Active Galactic Nuclei (AGN). Our method uses observed superluminal motions and observed brightness temperatures for a large sample of AGN to ...
D. C. Homan +10 more
core +3 more sources