evolution of intelligence

the process by which intelligence has developed from earlier and generally simpler species to later and generally more complex species. There are many theories of how intelligence has evolved, but most emphasize some kind of Darwinian natural-selection process, in which evolution favored skills that were more useful over the eons for adaptation to environments than skills that were less useful.

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Psychology term of the day

October 6th 2024

reciprocity norm

the social standard that people who help others will receive equivalent benefits from them in return. The expectation of reciprocity is common in many interpersonal encounters and relationships. Compare social justice norm; social responsibility norm.