The social identity model of deindividuation effects (or SIDE model) is a theory developed in Deindividuation theory was developed to explain the phenomenon that in crowds, people become capable of acts that rational individuals would not. This chapter challenges traditional models of deindividuation. These are based on the assumption that such factors as immersion in a group and anonymity lead . Reicher, S.D., Spears, R. and Postmes, T. () A Social Identity Model of Deindividuation Phenomena. European Review of Social Psychology, 6,

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Influence of the norms of the group in which the individual is at the moment increases, producing behavioral normativity and displaying more collective aspects of personality.

Social Identity Model of Deindividuation Effects

The participants were then told that the procedure would be repeated with a different target. These ideas from social identity theory and self-categorization deindividuztion provided not only key ingredients for Reicher’s critique of deindividuation theory, they are also the foundations upon which SIDE was modelled. Enter the email address you signed up with and we’ll email you a reset link.

The net result is that people will tend to perceive self and others in terms of stereotypic group features, and are influenced accordingly. Provided that there is some ba- of their identity. Research on [9] Lea, M. Deindividuated groups are more attractive to its members than individuated ones. European Review of Social Psychology6— Twitter Breaks the News: The model was first named by Lea and Spears [15] and later developed in a series of publications.

You are free to: Differentiation between social groups. Deindividuating effects of group presence and arousal on stealing by halloween trick-or-treaters. This research design was chosen due to the possibility of a more ecologically valid assessment than an experimental design. Email Please log in from an authenticated institution or log into your member profile to access the email feature.


The effects of anonymity on group behavior. The individual conscious personality fades and the unconscious group personality arises. The Ku Klux Klan is a racist group that kills people, whereas nurses care for people.

They demonstrated that this internal state is composed of altered experience and self-awareness. Deindividuation, impulse and chaos. Deindividuation and valence of cues: The authors propose that anonymity induces deindividuation, and the deindividuated subject is more susceptible to following salient rules in a situation.

In the middle of this second experiment, the participants answered the same item questionnaire. The model proposed by Zimbardo breaks new ground by suggesting that variables that are both internal and external to the subject may cause deindividuation and that the resulting behaviors can be prosocial.

The private component involves an internal and personal focus, such as when a person focuses on his or her perceptions, feelings and thoughts. Much of the research on deindividuation has been conducted in countries like the United States, where the dominant and dominated groups have a certain profile. Toward a general theory of strategic self-presentation.

The absence of self-awareness and self-regulation in group members. From Wikipedia, the free encyclopedia.

Social identity model of deindividuation effects – Wikipedia

Towards a sociological understanding of football hooliganism as a world phenomenon. We also provide a table summarizing those topics. The proposition of the deindividuation state by Zimbardo may have identitg investigations of the intrapsychic aspects of deindividuation. Login or create a profile so that you can create alerts and save clips, playlists, and searches. The laws of imitation. Computer-mediated communication impersonal, interpersonal, and hyperpersonal interaction.


SIDE developed as a critique of deindividuation theory. Phsnomena example, when one person engages in an activity, such as a party or social event they change their behavior.

Towards a Cognitive Redefinition of the Social Group. Today, SIDE is used to explain the effects of anonymity and social isolation in various contexts. At the beginning of the experiment, the participants were divided into groups. He was the first author to state that actions resulting from deindividuation can be prosocial, such as demonstrating love for identitty.

A Social Identity Model of Deindividuation Phenomena

Pages with citations lacking titles Pages with citations having bare URLs Articles lacking in-text citations from October All articles lacking in-text citations All articles with unsourced statements Articles with unsourced statements from August The Journal of Abnormal and Social Psychology47— In social identity research, the term depersonalization refers to a switch to a group level of self-categorization in which self and others are seen in terms of their group identities.

Each group has rules regarding how to act, think, and behave. Theory, Phenlmena, and Practice63— However, unlike deindividuation theory, SIDE takes account of the inter-group context within which identifiability and anonymity occur.

After the entire procedure was repeated, the experiment was finished. This does not necessarily mean bad or inappropriate behavior. It has become one of several theories of technology that describe deidnividuation effects of computer-mediated communication. Journal of Personality and Social Psychology42—