Purkinje phenomenon Purkinje phenomenon is the perception that the red end of the spectrum decreases in visibility in decreasing illumination faster than the blue end of the spectrum.
Phenomenon Phenomenon refers to anything that appears to an observer; anything that is capable of being perceived.
Phenylketonuria Phenylketonuria is a condition of serious mental retardation, thought to be hereditary, caused by the failure of the body to metabolize phenylalanine.
Phi phenomenon Phi phenomenon is the impression of seeing apparent movement. In its simplest form two lights flashed on and off in quick succession, with the right time
Neurasthenia Neurasthenia is a neurotic state of extreme tiredness, weakness and general debility, both mental and physic al.
Epiphenomenon Epiphenomenon refers to the philosophy of mind, an event that accompanies another event without having any causal relationship to it.
Cocktail party phenomenon Cocktail party phenomenon is the term used by some psychologists to describe our perceptual ability to deal with several messages at once but attend to only one of them.
Respondent authenticity Respondent authenticity is a disadvantage of online research in which it is difficult to determine that respondents are who they say they are.
Comprehensive advantage Comprehensive advantage is a nation is better equipped to produce one product or service than other nations.
Comprehensive physical damage Comprehensive physical damage refers motor vehicle insurance that protects the insured vehicle against most damage except that caused by collision and upset.