Evolutionary Psychology and Personality Theories
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Questions and Answers

Which brain region is MOST closely associated with the personality trait of neuroticism, playing a key role in self-evaluation and emotional regulation?

  • Superior temporal sulcus
  • Dorsomedial prefrontal cortex and Hippocampus (correct)
  • Medial orbitofrontal cortex
  • Lateral prefrontal cortex
  • An individual consistently demonstrates high levels of planning and impulse control. According to the described research, this behavior is MOST likely correlated with activity in which brain region?

  • Medial orbitofrontal cortex
  • Lateral prefrontal cortex (correct)
  • Posterior cingulate cortex
  • Superior temporal sulcus
  • Which of the following is the MOST accurate description of personality neuroscience?

  • A branch of psychology focused on behavioral interventions to modify personality traits.
  • A subfield that connects brain structures with personality traits, aiming to explain individual differences biologically. (correct)
  • A subfield that solely relies on genetic markers to predict personality.
  • A neuroimaging technique used to measure gray matter volume in different brain regions.
  • If a study using VBM reveals a strong correlation between gray matter volume in the superior temporal sulcus and a specific personality trait, which trait is it MOST likely to be?

    <p>Agreeableness (A)</p> Signup and view all the answers

    Increased sensitivity to threat and punishment is MOST closely associated with which of the Big Five personality traits?

    <p>Neuroticism (C)</p> Signup and view all the answers

    A researcher is using voxel-based morphometry (VBM). What is the PRIMARY purpose of this neuroimaging technique?

    <p>To measure gray matter volume in different brain regions. (B)</p> Signup and view all the answers

    Which of the following traits is MOST associated with social information processing?

    <p>Agreeableness (D)</p> Signup and view all the answers

    Damage to an individual's Lateral prefrontal cortex (LPFC) would MOSTLY affect which of the following?

    <p>Planning and Impulse Control (B)</p> Signup and view all the answers

    Which of the following scenarios best illustrates the concept of kin selection in evolutionary psychology?

    <p>An individual sacrifices their own safety to rescue their siblings from a burning building. (C)</p> Signup and view all the answers

    What has evolutionary psychology revolutionized the understanding of?

    <p>Human mating, social conflicts, and cognitive adaptations. (B)</p> Signup and view all the answers

    In the context of sexual conflict, what is one way women are suggested to deceive men, according to the text?

    <p>By falsely signaling sexual interest to extract resources. (D)</p> Signup and view all the answers

    Which brain region is identified in the text as being linked to extraversion (sociability, enthusiasm)?

    <p>Medial orbitofrontal cortex (C)</p> Signup and view all the answers

    According to the information, what is a significant issue concerning stepchildren compared to biological children?

    <p>Stepchildren face higher rates of abuse and neglect. (C)</p> Signup and view all the answers

    What area does Buss suggest needs more research in evolutionary psychology?

    <p>Friendship, alliances, and prosocial behaviors. (C)</p> Signup and view all the answers

    How do men deceive women according to studies detailed in the text?

    <p>By feigning commitment to secure short-term sex. (A)</p> Signup and view all the answers

    In game theory, which scenario examines human decision-making, cooperation, competition, and social interactions?

    <p>The Prisoner's Dilemma (D)</p> Signup and view all the answers

    Which of the following examples best illustrates intrasexual selection among humans?

    <p>Men striving to achieve higher social status and financial success to attract potential partners. (B)</p> Signup and view all the answers

    According to evolutionary psychology, what is a primary reason women seek faithfulness and emotional commitment in a partner?

    <p>To guarantee long-term investment and resources for offspring. (D)</p> Signup and view all the answers

    How might a woman strategically withhold sex in the context of evolutionary mate selection?

    <p>To secure resources and commitment from a man. (D)</p> Signup and view all the answers

    In the context of mate selection, what is the significance of Darwin's observation that love is essential?

    <p>Love promotes pair bonding and commitment, which are crucial for raising offspring. (C)</p> Signup and view all the answers

    According to evolutionary psychology, what advantage did women develop related to food scarcity?

    <p>Enhanced spatial memory for locating food sources. (A)</p> Signup and view all the answers

    What is the core concept behind Trivers' parent-offspring conflict theory?

    <p>Offspring attempt to obtain more resources from parents than the parents are willing to provide. (B)</p> Signup and view all the answers

    How does the evolutionary perspective explain children's aversion to certain vegetables like broccoli?

    <p>The bitter taste is perceived as a sign of potential toxicity, due to chemical defenses developed by plants. (B)</p> Signup and view all the answers

    Which behavior exemplifies female competition, particularly in the context of securing a mate?

    <p>Critiquing a rival's physical appearance or perceived promiscuity to a potential partner. (A)</p> Signup and view all the answers

    How did Darwin's concept of the 'struggle for existence' influence the field of evolutionary psychology?

    <p>It provided a framework for understanding how competition for limited resources shapes behavior and adaptations. (B)</p> Signup and view all the answers

    What is the evolutionary significance of common fears like the fear of snakes and spiders?

    <p>These fears are evolutionary adaptations that helped humans avoid potentially dangerous animals. (B)</p> Signup and view all the answers

    How does the concept of cross-character assortment manifest in human mate selection?

    <p>High-status men are typically drawn to younger, physically attractive women, while attractive women seek wealthy, high-status men. (D)</p> Signup and view all the answers

    What evolutionary purpose might be served by men taking higher risks when competing for mates?

    <p>To signal genetic quality and resource acquisition abilities to potential partners. (B)</p> Signup and view all the answers

    What is the relationship between warfare and reproductive success among humans, according to evolutionary psychology?

    <p>Successful warriors often have greater reproductive success due to increased access to resources and mates. (D)</p> Signup and view all the answers

    How did evolutionary psychology expand upon Darwin's original theories regarding struggles?

    <p>By identifying additional areas of conflict, such as within-family conflicts and conflicts between the sexes. (B)</p> Signup and view all the answers

    What does DNA evidence suggest about the impact of historical conquerors like Genghis Khan on modern populations?

    <p>They left a significant genetic legacy, indicating their reproductive success and widespread influence. (C)</p> Signup and view all the answers

    If an animal has an aversion to a certain food, which of the reasons is most likely the cause from an evolutionary perspective?

    <p>The food contains chemical compounds that signal potential toxicity or harm. (A)</p> Signup and view all the answers

    Flashcards

    Struggle for Existence

    Competition among species for survival in limited resources.

    Struggle for Mates

    Competition for reproductive success through mate selection.

    Natural Selection

    Process where organisms better adapted to their environment survive.

    Sexual Selection

    Competition among individuals of the same sex for mating opportunities.

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    Environmental Pressures

    Challenges like food scarcity and harsh weather that affect survival.

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    Human Competition

    Competition between humans for resources, status and mates.

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    Predator Detection Mechanisms

    Innate abilities humans develop to recognize and respond to threats.

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    Ancestral Foraging

    Behavioral adaptations linked to searching for food in the past.

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    Stepfamilies and Abuse

    Stepchildren experience higher rates of abuse compared to biological children.

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    Sexual Deception

    Men may pretend to be committed to get short-term sexual access.

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    Women’s Deception

    Women signal false interest to obtain resources from men.

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    Evolved Defenses in Women

    Fears of sexual coercion lead women to avoid risky situations during ovulation.

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    Kin Selection

    Altruism towards relatives due to shared genes, even at personal cost.

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    Game Theory

    Studies human behavior in cooperation, competition, and decision-making.

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    Big Five Personality Traits

    Five major traits: Extraversion, Neuroticism, Agreeableness, Conscientiousness, Openness.

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    Extraversion and Brain Structure

    Extraversion linked to medial orbitofrontal cortex, processing rewards and emotions.

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    Intrasexual Selection

    Male competition for mating opportunities, often physical.

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    Intersexual Selection

    Female choice of mates based on desired traits such as resources.

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    Female Mate Preferences

    Traits women prefer in men, including resources and commitment.

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    Risky Male Behavior

    Men take greater risks to attract mates, ignoring future costs.

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    Female Competition Strategies

    Women enhance appearance and derogate rivals to gain mates.

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    Mutual Mate Choice

    Both men and women select mates, influencing attraction dynamics.

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    Parent-Offspring Conflict

    Children seek more resources from parents than parents offer.

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    Sibling Rivalry

    Siblings compete for parental attention and resources.

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    Extraversion

    A personality trait associated with sociability, energy, and sensitivity to rewards.

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    Neuroticism

    A personality trait characterized by anxiety and emotional instability.

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    Agreeableness

    A personality trait reflecting kindness, compassion, and cooperativeness.

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    Conscientiousness

    A personality trait associated with self-discipline, organization, and dependability.

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    Openness/Intellect

    A personality trait reflecting creativity, curiosity, and a willingness to explore new ideas.

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    Personality Neuroscience

    A field that explores the biological basis of personality traits through brain structures.

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    Dorsomedial Prefrontal Cortex

    A brain region involved in self-evaluation and emotional regulation, linked to neuroticism.

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    Medial Orbitofrontal Cortex

    A brain area associated with reward processing, linked to extraversion.

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    Study Notes

    Evolutionary Theories on Personality

    • Darwin's theories of natural selection and sexual selection are the foundation for modern evolutionary psychology
    • Two major types of struggles identified by Darwin:
      • Struggle for existence: Competition for survival in a world with limited resources
      • Struggle for mates: Competition for reproductive success through mate choice and same-sex competition
    • Evolutionary psychology expanded on Darwin's ideas:
      • Identifying new struggles such as within-family conflicts and conflicts between the sexes

    Struggle for Existence

    • Species produce more individuals than can survive leading to competition
    • Organisms must adapt to environmental pressures like food scarcity, harsh weather and natural disasters
    • Evolutionary psychologists have discovered adaptations in humans that help them survive:
      • For example, women have better spatial memory for food locations linked to ancestral foraging

    Struggle with Other Species

    • Humans compete with predators and parasites; many common fears are evolutionary adaptations
    • Some plants developed chemical defenses; children's aversion to certain vegetables is explained by this

    Struggle with Other Humans

    • Human-on-human competition exists, particularly in tribal societies, where successful warriors tend to have more wives and children
    • DNA evidence shows historical conquerors' influence on modern populations
    • Human psychology has adaptations for both aggression and self-defense, shaped by conflicts

    Struggle for Mates

    • Darwin considered traits like the peacock's tail that seem to hinder survival, but explained that it attracts mates
    • Male competition (intrasexual selection):
      • Men compete physically and in social status, finances and dominance displays
      • They take higher risk when competing for mates (e.g., reckless behaviors)
    • Female mate choice (intersexual selection):
      • Women prefer men with resources, status, ambition and protection abilities
      • Female preferences change based on ovulation cycles
      • Women seek faithfulness and emotional commitment

    Struggles Not Considered by Darwin

    • Within-family conflicts
      • Parent-offspring conflict: Children try to extract more resources from parents than parents are willing to give.
      • Sibling rivalry: Siblings compete for parental attention and resources
    • Stepchildren face higher rates of abuse and neglect
    • Battle of the sexes (sexual conflict):
      • Men deceive women by feigning long-term commitment to secure short-term sex
      • Women deceive men by falsely signalling sexual interest to extract resources
      • Coercion as well as sexual deception may evolve as sources of conflict

    Evolutionary Psychology: Fulfilling Darwin's Vision

    • Evolutionary psychology is realizing Darwin's prediction that psychology will be based on evolutionary foundations
    • The field has revolutionized understanding of human mating, social conflicts, and cognitive adaptations
    • It explains sex differences in behaviors related to reproduction
    • Darwin's theories are expanded by modern research into kin selection, game theory and life history strategies

    Future Directions

    • Evolutionary psychology highlighted aggression, competition, and deception
    • Less focus on cooperation and altruism
    • Future research should investigate friendship, alliances and prosocial behaviors

    Testing Predictions From Personality Neuroscience

    • This research explores how brain structure correlates with personality traits
    • MRI scans are used to test a biological theory of the Big Five personality traits
      • Extraversion, Neuroticism, Agreeableness, Conscientiousness, Openness/Intellect
    • Key findings:
      • Extraversion linked to medial orbitofrontal cortex, a region for reward processing
      • Neuroticism associated with dorsomedial prefrontal cortex & hippocampus, linked to self-evaluation & emotional regulation
      • Agreeableness linked to superior temporal sulcus and posterior cingulate cortex, regions involved in understanding others' emotions and intentions
      • Conscientiousness correlated with lateral prefrontal cortex, a region responsible for planning and impulse control
      • Openness/Intellect has no strong associations with specific brain regions but some connection to parietal cortex, relevant to working memory and attention control

    Voxel-Based Morphometry (VBM)

    • A neuroimaging technique measuring gray matter volume in different brain regions

    Medial Orbitofrontal Cortex

    • Involved in reward processing, linked to Extraversion

    Dorsomedial Prefrontal Cortex (dmPFC)

    • A region involved in self-evaluation and emotional regulation, linked to Neuroticism

    Superior Temporal Sulcus

    • A brain area linked to social cognition and understanding others' intentions, associated with Agreeableness

    Lateral Prefrontal Cortex

    • Involved in planning, impulse control, and goal-directed behaviour, and related to Conscientiousness

    Openness/Intellect

    • One of the Big Five traits, linked to abstract thinking, creativity, and curiosity

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    Description

    Explore the foundational evolutionary theories from Darwin that shape our understanding of personality through the lens of psychology. This quiz delves into concepts such as the struggle for existence and the struggle for mates, highlighting key adaptations in humans. Understand how these evolutionary principles inform modern psychological frameworks.

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