R15 Questions Flashcards
What is self-domestication and what (evolutionary) changes occur because of it?
Self-domestication: the process that occurs through natural selection & increases our ability to cooperatively communicate with others.
The evolutionary changes: the shape of the face, the pigmentation of body parts or hair, the size of teeth, to hormones, reproductive cycles, and the nervous system.
What changes are evident in the faces/skulls of Homo Sapiens from more/less than 80,000 years ago?
Homo Sapiens had longer faces and larger brow ridges than in the Later Pleistocene. Skulls also had a 40% reduction.
What are the behavioral effects of drugs that increase the availability of serotonin?
more cooperative and less willing to harm others when tested for social science experiments that examine the moral dilemmas & cooperation
What behavioral effects are associated with oxytocin?
more cooperative, empathetic, and trusting in social and financial games
What is the evolutionarily “new” (about 80K years ago) category of an intragroup stranger? In humans, give an example of the types of people who might be considered intragroup strangers?
Intragroup strangers are not part of your social group but fits the traits of your social group.
Types of people are those who are unfamiliar but could be recognized if they belong to a group based on appearance, language, or a set of beliefs.
According to these authors, social tolerance led to cognitive changes, especially those related to cooperative communication. Give an example of how this helped in the development of new technology.
Friendlier people are more willing to be social, and people with common interests would work together to innovate.
