TABLE 2.

The activation of social or self-acquired information users (foragers) modulated by biogenic amines (reference numbers in parentheses).

	Social information users	Self-acquired information users
DA	Change levels on SRT (Scheiner et al., 2002), memory retrieval, and feeding (Mercer and Menzel, 1982)
5HT	Change levels on foraging and feeding (Schulz et al., 2003)
OA	Change levels on SRT (Søvik et al., 2015)	Change levels on exploration and sensory perception (Mercer and Menzel, 1982)

SRT, sucrose response threshold; DA, dopamine; 5-HT, serotonin; OA, octopamine.