Presentation on theme: "Humans: Nature and Nuture"— Presentation transcript:
1Humans: Nature and Nuture Genes and Gender Roles:Why is the nature argument so appealing?Precilla Y.L. ChoyChoi, P.Y. (2001). Genes and gender roles: Why is the nature argument so appealing?. Psychology, Evolution, & Gender, 3,Summary by:Lindsay Chisam, Griffin Gosnell, and Erin MorrisseyChoi, P.Y. (2001). Genes and gender roles. Psychology, Evolution, & Gender.
3Introduction Small differences in behaviors between men and women Opinions of Precilla ChoiSmall differences in behaviors between men and womenNature versus nurture debateSpecifically, women are more skilled at social interaction than menSmall differences in behaviors between men and womenDifferences have been seen as a role of nurture, but studies are showing that biology has more of a role than previously thoughtSpecifically, women are more skilled at social interaction than menChoi, P.Y. (2001). Genes and gender roles. Psychology, Evolution, & Gender.
4A study of Turner’s Syndrome You all remember, right?!Only one chromosome - which one?Child develops into a femaleStudy:To determine whether differences would be obvious between TS individuals depending on whether their X chromosome was maternally or paternally derivedFindings:Paternally derived X chromosome yielded lower social-cognitive dysfunction than those that were maternally derivedNormal boys also scored lower on social-cognitive dysfunction than normal girls.Only the X…studied these patients, and showed that Turner's syndrome females with a paternally derived X chromosome (Xp) have much better social skills than those with a maternally derived X (Xm). They conclude that social functioning is influenced by an imprinted gene on the X chromosome that is switched off when the gene is inherited from the mother. And they believe that this may explain male-female differences, such as why men (who only have a maternally derived X chromosome) are more susceptible to developmental disorders that affect language and social functioningChoi, P.Y. (2001). Genes and gender roles. Psychology, Evolution, & Gender.
5Turner’s Syndrome (continued) Explanations:Boys are less socially skilled and more vulnerable to developmental disordersConclusions of Skuse et al. (1997):Evidence that the origin of the X chromosome (either maternal or paternal) plays a role in the development of sexual dimorphism in social behaviorImage from:McGuffin, P. & Scourfield, J. (1997).Human genetics: A father's imprint on hisdaughter's thinking. Nature, 387,Choi, P.Y. (2001). Genes and gender roles. Psychology, Evolution, & Gender.
6Conclusions of ChoiGene expression depends on internal and external factorsSociety’s responsibility to establish an equal foundation where biology and genetics are balanced when comparing sexesThe genetic makeup of chromosomes highly influences your social abilitiesChoi, P.Y. (2001). Genes and gender roles. Psychology, Evolution, & Gender.
7Test Questions 1. What determines sex differences? A. Nature B. BiologyC. NurtureD. Both A & C2. Turner’s Syndrome is a genetic condition in with the individual hasA. no gonadsB. no ovariesC. two sex chromosomes, one inherited from each parent.D. none of the above3. Who is the least socially competent?A. Turner’s Syndrome, maternally derived X chromosomeB. Turner’s Syndrome, paternally derived X chromosomeC. Normal girlsD. Normal boysTrue or false?4. Boys are more vulnerable to developmental disorders.5. Men are more skilled at social interaction than women.6. Gene expression changes depend upon both the internal and external environments.D. Nature and Nurture2. A. No gonads3. D. normal boys4. true5. False… women are more skilled6.trueChoi, P.Y. (2001). Genes and gender roles. Psychology, Evolution, & Gender.
8Critical Review Interesting points: Male gene is responsible for social cognizance in Turner’s Syndrome.This is genetically derived!Those with Turner Syndrome are even more social than most females!For an equal society, it is necessary to see how nature and nurture intermingle and how they relate to sex differencesUnclear points:Why she talks about developmental disorders (e.g. autism) with no background informationThe kind of questionnaire distributed was not discussedShe doesn’t take evolutionary changes into consideration when talking about how males will always be stronger than femalesChoi, P.Y. (2001). Genes and gender roles. Psychology, Evolution, & Gender.