Aggression- Evolution- jealousy Flashcards
How is jealousy adaptive
Males: if they lose females lose chance to reproduce
Females: lose males they lose someone to provide
What is the key to the evolutionary explanation
Jealousy can be the precursor to many agg behaviours. Therefore jealousy has evolved to aid reproductive chances
Jealousy has evolved in makes to prevent cuckoldry.
What is cuckoldry?
Why is it a bad thing for males?
When a woman deceives a male into investing in her offspring conceived with another man
Bad for males as they loose repro chances and invested resources
How can jealousy prevent cuckoldry
Hopefully Prevents infidelity and therefore less likely to cuckold
Jealousy can be the precursor to agg behaviours
What tactics are employed in attempt to retain a partner
Verbal possession signs
Threats of intrasexual violence
Punishment of infidelity
Camilleri found that men are more likely to use sexual coercive tactics such as rape when the risk of cuckoldry is high, why
Because if a man rapes a woman he can be more sure the offspring are his
Who are the researchers into evolutionary agg
Buss
Shakelford
Buss and Dedden
What did buss do
Mutually exclusive scenarios Asked ppts what would distress them most, sexual or emotional infidelity Males: 61%sexual 39% emotional Females: 13% sexual 87% emotional
What did Shakelford do
461 males and 560 females
MRI: tactics used in past 3 months Asked how often they performed violent acts and how often partners sustained an injury
FOUND- 2MRT strongly associated with violence scores “intersexual negative inducement” and “direct guarding”
What did buss and Dedden find
Women more likely to criticised appearance and sexual promiscuity of other women, reducing their potential rivals
What are the evaluation points for evol agg
Supporting research Dated Can explain gender diffs Prac apps Too simplistic Homosexual couples
