Taken together, these findings indicate that repeated, intermittent ethanol exposure may have moderate effects on reproductive behavior that vary as a function of age.
The amplitude of the BOLD response showed a nonlinear behavior that varied considerably and consistently over space, ranging from almost linear to 10 times larger than a linear prediction at short SD.
The "Internet" is a set of services, platforms, standards, and user behaviors that vary across cultures.
There are wider definitions, including this one from a leading scholar of masculinities, Michael Kimmell: "Masculinity... is not a constant, universal essence, but rather an ever-changing fluid assemblage of meanings and behaviors that vary dramatically.
For behaviors that vary seasonally, we asked participants about typical behavior in the previous summer and winter.
For behaviors that varied seasonally, participants were asked about typical behavior in mid-summer and mid-winter.
Furthermore, many behaviors that vary between strains or populations, including courtship, mating, aggression, and olfactory response, also exhibit sexual dimorphism [ 27, 28].
Unlike cancer or heart disease, which have clearly visible end points, mental disorders yield vague behaviors that vary widely among individuals.
Indeed, using viral-mediated 5-HT1B-receptor gene transfer into the medial nucleus accumbens shell, we recently reported differential effects of increased 5-HT1B rexpressionpression on cocaine abuse-related behaviors that varied depending on the stage of the addiction cycle.
