Sunday, November 7, 2010

Definitions 15-19

evolutionary psychology: the brach of psychology that focuses on the study of mental adaptations of humans to changes in their environment, including changes in brain structure, cognition, and behavior


natural selection: the process in nature through which, according to Charles Darwin's evolutionary theory, only the organisms that are best adapted to their environment are able to survive and pass on their genetic characteristics in increasing numbers to succeeding generations; organisms that are less able to adapt are eliminated.


sexuality/gender: the behavioral, cultural, or psychological traits typically associated with a certain sex; each society has specific guidelines and expectations for individuals based on gender


behavior genetics: the field of study that examines the effects of genetics and hereditary factors on animal and human behavior


twins (importance of studies): the study of twins is an essential part of behavioral genetics that allows psychologists to study and compare the role of environment and genetics on behavior

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