which states that memory fades and/or disappears over
time if it is not used or accessed.
part of long-term memory where factual information is
stored, such as mathematical formulas, vocabulary, and
Decision making process in which ideas are processed
from the general to the specific.
Psychological forces which
prevent undesirable or inappropriate impulses from
entering consciousness (e.g., forgetting
responsibilities that we really didn't want to do,
projecting anger onto a spouse as opposed to your
boss). Also called Defense Mechanisms, Defense
System, or Ego Defenses.
The number of individual scores that can vary without changing the sample mean. Statistically written as 'N-1' where N represents the number of subjects.
False belief system (e.g., believing you are
Napoleon, have magical powers, or the false belief
that others are 'out to get you.').
of the cell body of a neuron responsible for receiving
The variable in an experiment that is measured; the
outcome of an experiment.
The branch of statistics that focuses on describing in numerical format what is happening now within a population. Descriptive statistics require that all subjects in the population (the entire class, all males in a school, all professors) be tested.
The area of psychology focused on how children grow
psychologically to become who they are as adults.
standard score used for reporting IQ scores where the mean is set to 100 and standard deviation to 15
The smallest change in perception which is noticeable
at least 50% of the time.
In behavioral theory, the learned ability to
differentiate between two similar objects or
Inability to recognize
or be aware of who we are (person), what we are doing
(situation), the time and date (time), or where we are
in relation to our environment (place). To be
considered a problem, it must be consistent, result in
difficulty functioning, and not due to forgetting or
The pushing out of older information in short term
memory to make room for new information.
attribute explained or interpreted as being caused by
A separation from the self, with the most severe
resulting in Dissociative Identity Disorder.
Most of us experience this in very mild forms such as
when we are driving long distance and lose time or
find ourselves day dreaming longer than we thought.
The phenomenon in memory that states we are better
able to remember information if it is distinctive or
different from other information.
The ability to use previously gained information to
debate or discuss issues which have no agreed upon
neurotransmitter associated with movement, attention
and learning and the brain's pleasure and reward
theory that schizophrenia is caused by an excess
amount of dopamine in the brain. Research has
found that medication to reduce dopamine can reduce
the positive symptoms of schizophrenia.
Research method in which both the subjects and the
experimenter are unaware or 'blind' to the anticipated
An internal motivation to fulfill a need or reduce the
negative aspects of an unpleasant situation.
use of medication to treat a mental illness.