Class Notes (836,962)
Canada (509,983)
Psychology (5,219)
PSYCH 1XX3 (1,108)
Lecture 3

Lecture 3 - Evolution.docx

3 Pages
Unlock Document

Christopher Teeter

Evolution and Human Behaviour: Sex Difference in Romance and Risk-Taking • How have variants lead to differential reproductive success? • Variants can be psychological characteristics too (ex. attention span/memory) not just physical • Outcome variance can drive solutions to problems • Inputsdecision rulesoutput (behaviour) • Behaviour = psychological mechanism (ex. memory) + input • Evolved psychological mechanisms are coded in the brain • Evolved psychological mechanisms can be described as info processing devices • Genes and family resemblance – which parents does the baby look more like • Often equal resemblance between mother and father • Family members of mother and mother usually say baby looks like the father • This behaviour is a way of enforcing that the baby is the father’s and he is more likely to invest in the baby’s life and stick around • Thought experiment: looking for love • Generally females list characteristics related to resources • Men list characteristics related to beauty • Romance in the friend zone? – can men and women just be friends • 88 undergrads in a study – paired in friendships and then asked questions and ensured confidentiality • Are you attracted to your friend? – most men said yes/most women said no • Is your female friend attracted to you? - most men said yes/most women said no • Would you date your friend? – most men would say yes/most women said no • Different adaptive problems: • Metabolic demands of reproduction – costly for women (1 egg/mth) but not for men (many sperm) • Parental investment – large investment for females carrying the child and looking after the baby but men could technically leave with no investment • Genetic cuckoldry – don’t want to invest your genetic investment into other’s material but want others to invest in yo
More Less

Related notes for PSYCH 1XX3

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.