Examlex
A polymorphic DNA marker is one in which more than one type of sequence is found in the population at that site in the genome.
Psychological Magnitude
A concept in psychology that refers to the perceived size, amount, or intensity of a psychological attribute.
Weber Fraction
A principle stating that the just noticeable difference between two stimuli is proportional to the magnitude of the stimuli, a fundamental concept in psychophysics.
Stimulus
Anything in the environment that can trigger a physical or behavioral change in an organism.
Nativism
The theory that certain skills or abilities are "native" or hard-wired into the brain at birth.
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