organisms need to make constant adjustments to changes in their internal state and
external environment, which may facilitate changes in lateralization
during their lifetime. Since it has been suggested that lateralization
at the population level is especially adapted for social
behaviour (Vallortigara & Rogers 2005), and many aspects of social
behaviour are under the influence of androgens, these hormones
may be involved in inducing changes in lateralization during the
animal’s lifetime. Unfortunately, the activating effects of testosterone
have been studied far less extensively than organizational
effects and hypotheses about how testosterone affects lateralization
in the adult brain are lacking.