SIDMAN AVOIDANCE SCHEDULE
a procedure where brief aversive stimuli are presented at fixed intervals in the absence of a response. If a response…
SIGNAL-TO-NOISE RATIO (SN)
a ratio of the power of a signal to the power of noise that is expressed in decibels. If the…
SIMON, HERBERT ALEXANDER
US economist, political scientist and psychologist. He is a founder of cognitive science and artificial intelligence and used computers to…
SIMULATION
1. An experimental method used to investigate psychological processes, functioning and behaviour in social and other environments not easily accessible.…
SINGLE-CHANNEL MODEL
a model of human information processing where serial processing is the only option. One step is taken at a time…
SITUATED LEARNING
learning that occurs in a classroom situation with specific physical and social contexts. Knowledge can be facilitated when the people…
SITUATIONAL SEMANTICS
a branch of semantics that says the meaning of utterances must be understood by considering what was said and when…
SKELETAL MUSCLE
the muscle that gives the force to make our skeleton move. These muscles are attached to bones by tendons and…
SLEEP LATENCY
the time taken to fall asleep. It can be a measure of some sleep disorders. Sleeping pills decrease the latency.…
SLIPPED DISK
condition where the gelatinous interior of a vertebral disc pushes out through its coating and presses on adjacent nerves. This…
SNOW BLINDNESS
a distortion of vision that is caused by extreme intensities of white light and brightness. All objects can appear to…
SOCIAL ANXIETY
a person's fear of social situations where there is a risk of embarrassment or being seen negatively by others. This…
SOCIAL COMPETENCE
a skill a person has in interpersonal relationships with the ability to handle different situations.
SOCIAL DETERMINISM
a theory that says historical events are determined by social phenomena. See cultural determinism; determinism.
SOCIAL FACILITATION
when we improve our performance in a task when other people are present. This could be due to a heightened…
SOCIAL INSECTS
These are the insects that live in groups with labour divisions, cooperation in care of young with many generations working…