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bystander effect

The reluctance of bystanders to intervene in an emergency, especially when a person appears to be in distress or when a crime is being committed. Scores of experiments have shown that ...

bystander effect

bystander effect   Quick reference

A Dictionary of Biomedicine

Reference type:
Subject Reference
Current Version:
2010
Subject:
Medicine and health
Length:
31 words

...effect The phenomenon in which mammalian cells irradiated in culture produce damage-response signals which are communicated to their unirradiated neighbours. The effect has important implications although the mechanism is...

bystander effect

bystander effect n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...effect n. The reluctance of bystanders to intervene in an emergency, especially when a person appears to be in distress or when a crime is being committed. Scores of experiments have shown that people are much less likely to intervene in an emergency, and are generally slower to respond, when other people are present than when they are alone, and this phenomenon is sometimes called group inhibition of helping . It was discovered by the US psychologists Bibb Latané (born 1937 ) and John M(cConnon) Darley (born 1938 ), who reported an experiment...

bystander effect

bystander effect  

The reluctance of bystanders to intervene in an emergency, especially when a person appears to be in distress or when a crime is being committed. Scores of experiments have shown that people are much ...
diffusion of responsibility

diffusion of responsibility  

A reduced sense of personal responsibility and individual accountability experienced in certain circumstances by members of a group, often leading to behaviour untypical of any of the group members ...
deindividuation

deindividuation  

A psychological state characterized by loss of the sense of individuality and a submerging of personal identity and accountability in a group. In some circumstances it can lead to a relaxation of ...
diffusion of responsibility

diffusion of responsibility n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...of responsibility n. A reduced sense of personal responsibility and individual accountability experienced in certain circumstances by members of a group, often leading to behaviour untypical of any of the group members when alone. See bystander effect , deindividuation , social loafing...

deindividuation

deindividuation n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...sense of individuality and a submerging of personal identity and accountability in a group. In some circumstances it can lead to a relaxation of inhibitions and the release of antisocial behaviour, and it has been used to explain certain forms of mob behaviour. See also bystander effect , diffusion of responsibility . Compare individuation...

Appeal to Bystander Interventions: A Normative Approach to Health and Risk Messaging

Appeal to Bystander Interventions: A Normative Approach to Health and Risk Messaging   Reference library

Shawn Meghan Burn

The Oxford Encyclopedia of Health and Risk Message Design and Processing

Reference type:
Subject Reference
Current Version:
2018
Subject:
Social sciences
Length:
9,052 words

...noted that more recent research shows that the bystander effect also occurs in the virtual world of the Internet, that it is stronger for less competent bystanders than for highly competent bystanders, and that dangerous emergencies reduce the bystander effect. In regards to this last finding, they suggested that in some dangerous situations, the presence of additional bystanders increases intervention likelihood by reducing the perceived costs of intervention. They suggested that this “positive bystander effect” occurs when bystanders believe that successful...

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