<P> The Principles of Psychology is an 1890 book about psychology by William James , an American philosopher and psychologist who trained to be a physician before going into psychology . There are four methods from James ' book : stream of consciousness ( James ' most famous psychological metaphor ) ; emotion ( later known as the James -- Lange theory ) ; habit ( human habits are constantly formed to achieve certain results ) ; and will ( through James ' personal experiences in life ) . </P>
<P> The Principles of Psychology is an 1890 book about psychology by William James , an American philosopher and psychologist who trained to be a physician before going into psychology . There are four methods from James ' book : stream of consciousness ( James ' most famous psychological metaphor ) ; emotion ( later known as the James -- Lange theory ) ; habit ( human habits are constantly formed to achieve certain results ) ; and will ( through James ' personal experiences in life ) . </P>
who wrote the early textbook principles of psychology
who wrote the early textbook principles of psychology
William James , an American philosopher and psychologist who trained to be a physician before going into psychology
William James , an American philosopher and psychologist who trained to be a physician before going into psychology