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Lecture 8

PSYC 2160 Lecture Notes - Lecture 8: Herd Mentality, Deindividuation, Stanford Prison Experiment


Department
Psychology
Course Code
PSYC 2160
Professor
Piccone
Lecture
8

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SET 8
Social Action
conscious behavior we perform because others are around
Social Facilitation
people perform better when they know they're being watched
Yerkes-Dodson Law
being in the presence of others (arousal) hinders our ability to perform complex tasks with which
we are not familiar, but enhances our ability to perform simple tasks with which we are familiar
(i.e. a concert pianist performs best for an audience, while a beginning pianist plays worse in
front of people)
Deindividuation
people behave differently in groups than when alone; can lead to anti normative (against the
norm) behavior
(i.e. mob mentality)
Bystander effect
individuals do not help victims when others are present
-likelihood and timeliness of the response is inversely proportional to the number of bystanders
present
Social Loafing
people put in less effort when working as a group
(can be mental or physical effort)
identity shift affect
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individual when conform to the norms of a group when their internal harmony is disrupted by the
threat of social rejection.
This will lead to internal conflict, which causes the individual to adopt the standards of the group
as her own
cognitive dissonance
internal state of discomfort because "our thoughts don't match our actions"
may lead to fear, anger, anxiety
try to reduce this discomfort by minimizing one of the conflicting thoughts
Asch conformity experiment
-line length on cards
Finding: individuals will sometimes provide answers they know to be untrue to avoid a conflict
with a group
Social interaction
two or more individuals shape each other's behaviors
Group Polarization
groups have more extreme thoughts and make more extreme decisions than individuals making
up the group
individuals in groups will form more extreme opinions than they would if they were acting alone
-ideas don't start extreme but they become more extreme in the group setting
-individual's thoughts become polarized
Groupthink
desire for harmony and conformity in a group leads to people agreeing to an incorrect or poor
decision
-desire to agree with a group causes a loss of critical thinking
-group isolates external viewpoints and sees their own viewpoint as unquestionably correct
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Illusion of invulnerability
factor indicative of groupthink
creation of optimism and encouragement of risk taking
Collective Rationalization
factor indicative of groupthink
ignoring warnings against group's idea
Illusion of Morality
factor indicative of groupthink
belief that the groups decisions are morally correct
Excessive Stereotyping
factor indicative of groupthink
construction of stereotypes agains outside opinions
Pressure for Conformity
factor indicative of groupthink
anyone who disagrees is seen as disloyal
Self-Censorship
factor indicative of groupthink
withholding of opposing views
Illusion of unanimity
factor indicative of groupthink
false sense of agreement within a group
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