Results 281 to 290 of about 6,785,321 (317)

Pupil constriction by contrast for contrast

Neuron
The pupil is the eye's adjustable aperture. Fitzpatrick et al. find that visual contrast constricts the pupil, increasing contrast.1 This process improves behavioral performance. Its retinal origin has unorthodox elements, like interneurons that make connections in unusual locales and photoreceptive ganglion cells.
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Resurgence and Behavioral Contrast, Compared and Contrasted

Perspectives on Behavior Science
This is a review of the relation between operant response resurgence and behavioral contrast. Both are defined by rate changes in a target response as a function of environmental changes spatially or temporally distal to the location of the target response.
Kennon A, Lattal, Amanda K, Miles
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Perceptual factors in contrast contrast

Optical Society of America Annual Meeting, 1991
A number of researchers have reported that patterns have lower apparent contrast when surrounded by high-physical-contrast patterns with similar spatial frequency properties than when surrounded by lower-contrast patterns. This contrast contrast has been interpreted as revealing lateral interactions among neural gain signals.
Branka Spehar, Lawrence E. Arend
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On the pragmatics of contrast

Journal of Child Language, 1990
ABSTRACTIn this paper, I review properties and consequences of the PRINCIPLE OF CONTRAST. This principle, which I have argued from the beginning has a pragmatic basis, captures facts about the inferences speakers and addressees make for both conventional and novel words.
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A VECTOR THEORY OF PHASE CONTRAST AND INTERFERENCE CONTRAST: V. INTERFERENCE CONTRAST

Journal of the Royal Microscopical Society, 1955
SYNOPSISThe vector representation of interference contrast is discussed and it is shown that it leads to results identical in principle with those of phase contrast. Any problem in interference contrast can be expressed in terms of an equivalent phase‐contrast system and vice versa.
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Contrastive Accent and Contrastive Stress

Language, 1961
'This whiskey,' said O'Reilly, sampling spirits that claimed to be from his homeland, 'was not exported from Ireland; it was deported.'
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Contrast Manipulation

2013
57
Frery, Alejandro C., Perciano, Talita
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Iron Oxide Nanoparticles as T1 Contrast Agents for Magnetic Resonance Imaging: Fundamentals, Challenges, Applications, and Prospectives

Advanced Materials, 2021
Mike Jeon, Zachary R Stephen, Miqin Zhang   +2 more
exaly  

Contrast – from a contrastive perspective

2002
The main concern of the paper is to address some problems that arise when defining the concept of contrast and to clarify the relation between contrast and other concepts of information structure. As to the definition of the notion of contrast, we need to separate the semantic and pragmatic aspects of contrastiveness as well as identify different types
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Tackling the increasing contamination of the water supply by iodinated contrast media

Insights Into Imaging, 2022
Helena M Dekker, Mathias Prokop
exaly