FATIGUE EFFECT
is one of the many effects attributed to fatigue, where the individual gradually becomes less and less efficient, even when…
FEAR-INDUCED AGGRESSION
a form of animal aggression where the animal will attack only after it has been severely threatened and cornered.
FECHNER, GUSTAV THEODOR
Physician who didn't practice medicine but studied natural philosophy. After an illness he spent time looking at mental and physical…
FEEDING TECHNIQUE
the manner in which an infant is fed. The technique will be breast fed or bottle fed.
FEMALE SPERM
This term is given to the spermatozoa that bear an X chromosome and therefore determine that an ovum they fertilise…
FERREE-RAND DOUBLE BROKEN CIRCLES
a figure that is used to test for visual acuity and astigmatism. A gap size is for acuity and if…
FIELD EXPERIMENT
an experiment that is not conducted inside a laboratory but is done outside in the real world setting. Participants are…
FIGURAL SYNTHESIS
our creation of a meaningful figure from the synthesis of selected portions of the incoming stimulus input that was proposed…
FILLED-SPACE ILLUSION
term that is used to describe the source of a distortion seen in distance estimation. Distance estimation increases as a…
FIXED-ACTION PATTERN (FAP)
Classical ethology. It is a stereotyped and genetically preprogrammed, species-specific behavioral sequence that is evoked by a particular stimulus and…
FLESCH INDEX
the name of a system used to evaluate the readability and reading level of a document. Words and sentences are…
FLIGHT OF IDEAS
a disturbance in the thinking processes that is a rapid and continuous succession of ideas that are related. It can…
FLUCTUATION OF PERCEPTION
the tendency for perception to alternate between competing stimuli that cannot be integrated or synthesized with each other. See bi-stable…
FLYNN EFFECT
name of the gradual rise in IQ levels since records were started. The average is the same but the raw…