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The Nature and Nurture of Aggression Theories of Aggression Aggression as a biological phenomenon –Instinct theory (evolutionary psychology) –Neural influences –Genetic influences –Blood chemistry Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-3

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The Nature and Nurture of Aggression

Social Dominance

The Nature and Nurture of Aggression

Copyright © 2012 by The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill/Irwin

The Nature and Nurture of Aggression

What is Aggression?

• Instrumental aggression

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-2

The Nature and Nurture of Aggression

Theories of Aggression

• Aggression as a biological phenomenon– Instinct theory

(evolutionary psychology)

– Neural influences– Genetic influences– Blood chemistry

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-3

The Nature and Nurture of Aggression

Theories of Aggression

• Aggression as a response to frustration– Frustration-aggression theory – Frustration-aggression theory revised– Relative deprivation

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-4

The Nature and Nurture of Aggression

Theories of Aggression

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-5

The Nature and Nurture of Aggression

Theories of Aggression

• Aggression as learned social behavior– The rewards of aggression– Observational learning

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-6

The Nature and Nurture of Aggression

Theories of Aggression

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-7

The Nature and Nurture of Aggression

Influences on Aggression

• Aversive incidents– Pain, – Heat– Attacks– Crowding

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-8

The Nature and Nurture of Aggression

Influences on Aggression

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-9

The Nature and Nurture of Aggression

Influences on Aggression

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-10

The Nature and Nurture of Aggression

Reducing Aggression

• Catharsis?• A social learning approach

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-11

The Nature and Nurture of Aggression

Supplemental Slides

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-12

The Nature and Nurture of Aggression

Murder Rates Vary

Copyright © 2012 by The McGraw-Hill Companies, Inc. 24-13

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