Personology

"Perspectives on Personality" (6th ed.) by Carver and Scheier

From Chapter 5: "Needs and Motives"

"What kinds of behavior reflect the power motive?... People high in this motive... are more sexually active than persons lower in this motive....Oliver Schultheiss and his colleagues have found that the need for power also relates to the sex hormone testosterone... There is a slight link between power needs and baseline testosterone (Schultheiss et al., 2005). More interesting, however, is what happens to testosterone after success and failure. Among men, higher need for power related to a larger increase in testosterone after a success and also to a greater reduction in testosterone after a failure. Among women, however, the associations were much more complex."

"Another motive that has emerged as a research focus is the need for intimacy... Intimacy motivation is the desire to experience warm, close, and communicative exhanges with another person, to feel close to another person. Carried to the extreme, it's the desire to merge with another person. Intimacy motivation shares with affiliation motivation a wish to be with others as an end, rather than as a means... How do people high in the intimacy motive act when they're with others? They laugh, smile, and make more eye contact when conversing than people with lower intimacy needs (McAdams, Jackson, & Kirshnit, 1984). They don't try to dominate the social scene. (People with a need for power do that.) Instead, they seem to view group activities as changes for group members to be involved in a communal way (McAdams & Powers, 1981)."