STEVENS LAW
psychological relationship where the magnitude of sensation is in proportion to the power producing it. Have a look on Fechner
STEVENS POWER LAW
a logarithmic relationship between impulse and intensity of visual stimulus. 0.33 is the empirical constant for the human eye.
STEWART-MOREL SYNDROME
a disorder with hypertrophy of the frontal bone in the skull, headaches, obesity, mental retardation and nervous system affects. Also…
STILES-CRAWFORD EFFECT
the perceived brightness or colour depending on whether the light rays enter the pupil near the centre or the edge.…
STIMULANTS
Stimulants are agents which results in functional activity either in human or animals. Stimulants are generally categorized according to the…
STIMULATION
1. The act of increasing levels of activity. 2. Part of perception. See stimulus.
STIMULATION EFFECTS
The effect which results in physiological changes and happens when any stimulus changes the membrane potential of muscle cell, consequently…
STIMULUS CONTROL
It is the limit to which organism's behaviour is affected by stimulus condition. It can refer to various responses occurring…
STIMULUS DISCRIMINATION
being able to distinguish between different stimuli. See discrimination.
STIMULUS FILTERING
Is the specification of nervous system; through this process of filtering only relevant stimuli reach to the brain where others…
STIMULUS FUNCTION
Stimulus function is to evoke the response in an organism is the function of stimulus. In operant conditioning, a stimulus…