constancy


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constancy

 [kon´stan-se]
the quality of remaining stable or unaltered.
form constancy the ability to recognize forms and objects as the same in spite of variation in environment, position, and size.
object constancy the capacity to understand that an absent person or object exists and will return.

con·stan·cy

(kon'stan-sē),
The quality of being unchanging
[L. constantia, fr. consto, to stand still]

constancy

[kon′stənsē]
an absence of variation in quality of distinctive features despite location, rotation, size, or color of an object.

con·stan·cy

(kon'stăn-sē)
The quality of being constant.
[L. constantia, fr. consto, to stand still]

constancy 

Perceptual phenomenon whereby the properties of certain objects appear to remain relatively constant, despite changes in the stimulus characteristics which induced the perception. All constancies occur only within a limited range.
brightness constancy Perceptual phenomenon whereby the brightness of an object appears to remain relatively constant, despite changes in the level of its illumination. Example: white paper appears white whether it is seen in sunlight or in the weaker or yellower illumination of a light bulb. Syn. lightness constancy.
colour constancy Perceptual phenomenon whereby the colour of an object appears to remain relatively constant, despite changes in the spectral composition of the incident light.
shape constancy Perceptual phenomenon whereby the shape of an object appears to remain relatively constant, despite changes in the viewing angle. Example: A circle held obliquely to the line of sight appears more circular than it should due to shape constancy although its retinal projection is oval.
size constancy Perceptual phenomenon whereby the size of an object appears to remain relatively constant, despite changes in the viewing distance (and therefore of its retinal image size).
References in periodicals archive ?
Finally, the individuals in the high mindfulness group also reported higher mean SMTQ constancy scores (14.
Could we consider the recording of self-harm through time either by written or spoken word, a method to provide constancy for the 'they-self'?
A recently published colour constancy method [ 11] reported far better results.
In its most damaging form, the fallacy dismisses essential aspects of true time by quietly disposing of constancy (labeling it as timeless) and/or quietly disposing of change (labeling it as lower/subjective or unreal).
Guided by constancy, she recognizes that the source of harmony, stability, and continuance, for nature and for herself, is the eternal, divine Creator, God.
In related work, Ericsson (2012) discusses the theory of reduction and exogeneity in the context of GVARs, thereby providing the background for tests of parameter constancy, data aggregation, and weak exogeneity in GVARs.
This is so only because constancy is a pre-requisite to the success of our relationships, our work, our communities and our national life.
The first conclusion, constancy assumption, and the second one, functional equivalence assumption, collectively are called the Principle of Relative Constancy (PRC).
RECENTLY, I was reminded of the phrase constancy of purpose, attributed to the late A.
The phenomenon of flower constancy in bees is known from more than two millennia ago yet there is no general theory that can explain all kinds of flower constancy.
Among the topics and psychological research and behavioral phenotypes, selection and genetic heterogeneity, cross-population constancy in trait profiles and the study of the inheritance of human behavior variables, implications of primate paleontology for behavior, and behavior and mating patterns in human populations.
Washington, May 07 (ANI): Children as young as 19 months understand different dialects, a skill, which researchers call 'phonological constancy.