Table 1.

Experimental design and expected serotonin levels: six females were used for each drug and behavioral treatment sub-group. Two females were excluded from statistical tests because their estrous stages could not be determined and are shown here as groups of 5. See the Introduction for an explanation of the influence of social context on serotonin levels. See sections 2.3-2.4 for explanations of drug and behavioral treatments.

	Fenfluramine	Saline 1	pCPA	Saline2
Non-social	6, high serotonin	5, low serotonin	6, low serotonin	6, low serotonin
Partner	6, high serotonin	5, high serotonin	6, low serotonin	6, high serotonin
Playback	6, high serotonin	6, med. serotonin	6, low serotonin	6, med. serotonin