Presentation on theme: "Unit 3-C (D): Evolutionary Psychology"— Presentation transcript:
1 Unit 3-C (D): Evolutionary Psychology Mr. McCormickA.P. Psychology
2 changed physically due to Do-Now (Discussion)What are some waysthat humans havechanged physically due toNatural Selection?
3 Evolutionary Psychology The study of the evolution of behavior and the mind using principles of natural selectionNatural Selection:The principle that, among the range of inherited trait variations, those that lead to increased reproduction and survival will most likely be passed on to succeeding generations
4 Evolutionary Psychology It’s all about survival:Organisms’ varied offspring compete for survivalCertain biological and behavioral variations increase organisms’ reproductive and survival chances in their particular environmentOffspring that survive are more likely to pass their genes to ensuing generationsOver time, population characteristics may change
5 Evolutionary Psychology What are some human psychological traits the promote survival?
6 Evolutionary Psychology Mutation:A random error in gene replication that leads to a change
7 Evolutionary Psychology Many psychological traits that humans possess today have their roots in evolution:Food preferencesFearsStress managementGender differencesSexual behaviorsSome evolutionary psychologists feel that humans are biologically prepared for a world that no longer exists
8 Evolutionary Psychology: Differences in Sexual Behavior In general, which sex tends to be more sexually aggressive and promiscuous?How might an evolutionary psychologist explain men’s higher rate of sexual activity?
9 Evolutionary Psychology: Differences in Sexual Behavior Question (summarized)MaleFemaleCasual sex58%34%Sex for affection25%48%Think about sex everyday54%19%
10 Evolutionary Psychology: Differences in Sexual Behavior Psychological Study on Sexual Preferences:In a range of cultures studied (indicated by red dots), more men than women preferred youthful women; more women than men preferred mates with resources and social status
11 The Biopsychosocial Approach: Nature And Nurture
12 Review What is Evolutionary Psychology? How does Natural Selection apply to human thought and behavior?How are the following a result of psychobiological evolution in humans:Preference for sweet and fatty foodsFear of spiders and snakes, but not guns and electricityMen’s higher rate of sexual activityWhat does the Biopsychosocial Approach suggest about the Nature-Nurture Debate?
13 Homework Unit 3 Test: “Biological Bases of Behavior” Chapter 6 Outline: “Sensation and Perception”