Class Notes (806,815)
Canada (492,451)
Psychology (7,610)
PSYC39H3 (172)
Lecture 3

PSYC39 Lecture 3.docx

2 Pages
Unlock Document

University of Toronto Scarborough
David Nussbaum

Lecture 3 PSYC39 Theories of Crime: Biological and Evolutionary Pseudo-Explanations HISTORICAL CONTEXT -phrenology created by Franz Gall: can tell the personality of person from the shape and size of person's head -Lombroso: can tell who is a criminal from facial and bodily features -Darwin: natural selection theory, survival of the fittest--criminals adapt traits (parents are criminals or have addictions, lower education levels, lack of empathy) -Galton: society can be enhanced by eliminating people that had bad genes (eugenics) GENETICS -twin studies: behaviour linked to gene, can see concordance between identical twins compared to non-identical twins/siblings -adoption studies: no random genetic similarities between adopted siblings, but shared environment -Caspi: interaction b/w MAO-A and childhood maltreatment -MAO-A neurotransmitters have different groups distinguished by radicals; activated through enzyme that breaks down MAO-A - a balance when there is MAO in system -high levels of enzymes: correlation to childhood maltreatment (correlation doesn't mean enzyme causes maltreatment) HORMONES -testosterone and aggression link: people with more testosterone tend to be more aggressive -first findings in chimpanzee groups: there are alpha-males who get the best at everything ; the bottom of social hierarchy are small chimps who only get scraps of food -anthropologist explanation: alpha-male has more testosterone, testosterone helps boost muscle mass -find that testosterone wears off through aging, the young chimps will beat alph-male and alpha-male testosterone drops three-quarters when defeated while young chimp increases 2x -can ethically conduct study with humans through athletes before and after the game (ie. boxing) ... has the same findings as chimp study -research extended through imagination; imagine winning = testosterone level will rise -premenstrual syndrome and aggression link NEUROTRANSMITTERS -serotonin: regulates mood and inhibition, allows people to contextualize -dopamine: immediate gratification, reward system, testosterone, more dopamine may be predatory -norepinephrine: immediate response to stress, more stress=more norepinephrine PHYSIOLOGY -electrodermal activity has to do with moisture in the skin, more water conducts electricity; can tell us how stressed the individual is -Gray's arousal model: ratio between BAS and BIS on how prone someone will act without thinking -antisocial individuals have underactive BIS and overactive BAS; the relationship between the id, ego, and superego BRAIN -structural: do people have connections between various parts of the brain? (ie. bigger temp
More Less

Related notes for PSYC39H3

Log In


Don't have an account?

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.