Class Notes (839,330)
Canada (511,272)
Psychology (3,977)
PSYC 3100 (223)
Hank Davis (22)
Lecture

Nov 19.docx

2 Pages
87 Views

Department
Psychology
Course Code
PSYC 3100
Professor
Hank Davis

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.
Description
Lecture 20 Finish chapter 12 Can a man detect when a female is ovulating?  Seems that female humans have cryptic ovulation o Cryptic ovulation in human females may be one of the reasons that monogamy evolved  May be why men want to “keep trying” – “have a lot of sex”  The rhythm method is notoriously ineffective  One of the reasons is that the female cycle is not consistent  There is an undercurrent of suggestion that men can tell when a women is ovulating  Women who don’t want babies, are sterilized, or on IUD o 25% more likely to have sex when they are most fertile  Possibly desire more during this time  Possibly partners desire them more – temporary changes in waist-to-hip ratio  Even when steps are taken to avoid conception, it’s as if nature is still lobbying for success  Also possible that women can detect when they are ovulating and send out more signals  Even if ovulation is cryptic to men, they can detect sexual signals  Study on table dancers who make the majority of their money via tips o Neither ovulating, nor menstruating - $50/tips o Menstruating - $15/hour o Ovulating - $75/hour o Why?  Is it a pheromone that guys get, but can’t describe?  Some men swear this  Human male detecting female rabbit’s pheromone  Male rhesus monkey detecting that a human female is menstruating  Dormitory effect o Women living together in proximity – menstrual synchronicity occurs o Could result in synchronous births  Could be a good idea if one of the mothers were to pass away  That way the baby can be around lactating women  Conception is the goal – if there is a goal o Avoidance of pregnancy and pleasure is not the goal of a mating strategy Short-term sexual strategy  Costs to following this o STI’s  The likelihood of an STI increases as a function of the number of partners  Fertility goes way down, infant mortality goes way up o Reputation  If you are living in a small social group, your reputation tends to be everything  Having a bad reputation is going to have an impact on both your short and long-term sexual partners  In turn will affect your success rate o If you spread your resources too thin, the whole thing was for not  You don’t have enough resources to help  Can’t count on your partner to do all of the work o Violence from jealous husbands/boyfriends  Very real and measurable effect  Get you hurt or killed o Violence from fathers or brothers (nuclear family)  “shotgun weddings”  You had your fun, now marry her o Retaliatory affairs by your partner(s)  Or a costly divorce  Ron Immerman o Studies have demonstrated that STI’s are behind monogamy o Been a powerful force pushing human evolution in the direction of monogamy, or at least made this the norm o Ancient STI’s – go back to the Pleistocene o ~150 years ago, doctors were the vectors for a lot of diseases  We did not know well enough to wash our hands – didn’t know about germs o AIDS
More Less
Unlock Document

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


OR

Join OneClass

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

Sign up

Join to view


OR

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.


Submit