Glossary P

Parkinson’s disease refers to degenerative brain disorder principally affecting motor performance, such as tremors and stooped posture which is associated with reduction in Dopamine . Dementia may be a result as well.
Parkinson’s law is a law which states that a task will expand to fill the time available for its completion.
Parkinsonism refers to a behavioral syndrome marked by motor symptoms including tremor, rigidity, and slowness of movement.

Parmenides who was born ca. 515 B.C. believed that the world was solid, fixed, and motionless and therefore that all apparent change or motion was an illusion.
Parole refers to a supervised conditional release of a convicted prisoner before expiration of the sentence of imprisonment.

Parsimony refers to a criterion for evaluating the scientific merit of theories; a Parsimonious theory is one that uses relatively few explanatory principles to explain a broad set of observations. Parsimony also means using the smallest number of statements in a theory
Parsing refers to the process of assigning words into grammatical categories.
Partial color constancy refers to a type of color constancy that occurs when changing an object’s illumination causes a change in perception of the object’s hue, but less change than would be expected based on the change in the wavelengths of light reaching the eye. Note that in complete color constancy, changing an object’s illumination causes no change in the object’s hue.

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