🧠 Test Your Knowledge!
Crowd and Collective Behaviour » Review and Practice - Collective Behaviour
What you'll learn this session
Study time: 30 minutes
- The definition and characteristics of collective behaviour
- Different types of crowds and crowd behaviour
- Pro-social and anti-social collective behaviour
- Explanations for collective behaviour including deindividuation
- Real-world examples and case studies of crowd behaviour
- How to apply psychological theories to explain crowd events
Understanding Collective Behaviour
Collective behaviour refers to how people think, feel and act when they're part of a group or crowd. It's fascinating because people often behave differently in crowds than they would on their own!
Key Definitions:
- Collective behaviour: Actions and reactions of a group of people in response to a common stimulus or situation.
- Crowd: A temporary gathering of people who share a focus of attention.
- Deindividuation: The loss of self-awareness and personal responsibility that can occur in group situations.
👥 Types of Crowds
Casual crowds: People who happen to be in the same place (like shoppers in a mall)
Conventional crowds: People gathered for a specific planned event (like a concert audience)
Expressive crowds: People gathered to express emotion (like at a football match)
Acting crowds: People engaged in unusual or extreme behaviour (like riots or protests)
📖 Characteristics of Collective Behaviour
Spontaneous: Often emerges without planning
Temporary: Usually doesn't last long
Unusual: People may act differently than normal
Emotional: Often driven by strong feelings
Contagious: Behaviours and emotions spread quickly
Pro-social vs Anti-social Collective Behaviour
Not all crowd behaviour is negative! Crowds can be forces for good or for harm, depending on the circumstances.
👍 Pro-social Behaviour
Pro-social collective behaviour involves crowds acting in positive, helpful ways that benefit others or society.
Examples:
- Community clean-up events
- Charity fundraising events
- Peaceful protests for social change
- Spontaneous helping during emergencies
- Mass celebrations (like New Year's Eve)
👎 Anti-social Behaviour
Anti-social collective behaviour involves crowds acting in negative, harmful, or destructive ways.
Examples:
- Riots and looting
- Football hooliganism
- Mob violence
- Mass panic (like stampedes)
- Destructive protests
Explaining Collective Behaviour
Psychologists have developed several theories to explain why people behave differently in crowds:
💡 Deindividuation Theory
When in a crowd, people can become anonymous and lose their sense of individual identity. This can reduce self-awareness and personal responsibility, making people more likely to act impulsively or break social norms.
Key factors: Anonymity, reduced accountability, group size
🧠 Social Identity Theory
People adopt the identity of the group they're in, taking on its norms and values. Their behaviour becomes guided by what they believe is appropriate for a member of that group.
Key factors: Group norms, social identity, conformity
💬 Contagion Theory
Emotions and behaviours can spread rapidly through a crowd like a contagious disease. People "catch" feelings and actions from others around them through a process of social influence.
Key factors: Emotional spread, suggestibility, imitation
Deindividuation: A Closer Look
Deindividuation is one of the most important concepts for explaining collective behaviour. Let's explore it in more detail:
How Deindividuation Works
When people become part of a crowd, several psychological changes can occur:
- Anonymity: Feeling less identifiable and personally responsible
- Diffusion of responsibility: Believing that others will take responsibility
- Reduced self-awareness: Focusing less on personal values and more on group actions
- Heightened arousal: Becoming more emotionally charged and reactive
- Altered thinking: Making decisions based on immediate emotions rather than careful thought
These changes can lead people to act in ways they normally wouldn't if they were alone or identifiable.
Case Study Focus: Zimbardo's Stanford Prison Experiment
Philip Zimbardo's famous (and controversial) 1971 experiment showed how quickly ordinary people could change their behaviour when given anonymity and power. Students assigned to be 'guards' in a simulated prison became increasingly cruel to 'prisoner' students, showing how deindividuation can lead to anti-social behaviour.
The experiment had to be stopped early because of the psychological harm it was causing. While ethically problematic, it demonstrated how easily deindividuation can occur and affect behaviour.
Real-World Examples of Collective Behaviour
🚨 The 2011 London Riots
Following the police shooting of Mark Duggan, peaceful protests escalated into widespread rioting and looting across London and other UK cities.
Psychological factors involved:
- Deindividuation: Many rioters covered their faces
- Diffusion of responsibility: "Everyone else was doing it"
- Emotional contagion: Anger and excitement spread through crowds
- Reduced fear of consequences due to the size of the crowds
🏆 2012 London Olympics Volunteers
The "Games Makers" at the London Olympics showed positive collective behaviour, with thousands of volunteers creating a welcoming atmosphere.
Psychological factors involved:
- Strong positive social identity as "Games Makers"
- Clear pro-social norms and expectations
- Positive emotional contagion
- Increased rather than decreased personal responsibility
Preventing Negative Collective Behaviour
Understanding the psychology of crowds helps authorities prevent or manage potentially dangerous situations:
- Reducing anonymity: CCTV cameras, requiring identification, or having visible police presence
- Clear communication: Providing information to reduce uncertainty and panic
- Environmental design: Creating spaces that reduce crowding and facilitate easy movement
- Promoting positive social identity: Encouraging crowds to see themselves as responsible citizens
- Early intervention: Addressing small problems before they escalate
Applying Your Knowledge: Football Crowd Management
Football matches provide excellent examples of collective behaviour management. Consider how these strategies are used:
- Segregating rival fans to prevent conflict
- Using CCTV and stewards to reduce anonymity
- Creating family-friendly sections to promote positive norms
- Banning alcohol in certain areas to reduce disinhibition
- Using clear announcements and signage to guide behaviour
Can you think of other examples where crowd psychology principles are applied in everyday situations?
Key Points to Remember
As you review collective behaviour, keep these important points in mind:
- People often behave differently in crowds than they do individually
- Collective behaviour can be pro-social or anti-social
- Deindividuation is a key process that explains many aspects of crowd behaviour
- Multiple factors influence how crowds behave, including anonymity, social identity and emotional contagion
- Understanding crowd psychology helps us manage and prevent negative collective behaviour
- The same psychological principles apply to both positive and negative crowd events
When answering exam questions on collective behaviour, remember to use specific examples and psychological theories to explain the behaviour you're discussing. Link the features of the situation to concepts like deindividuation, social identity and contagion.
Log in to track your progress and mark lessons as complete!
Login Now
Don't have an account? Sign up here.