Table 1.

Social conditions for subject males when in the home cage and during the 30 min conscious uptake during the positron emission tomography (PET) scan.

	Home cage social condition	FDG uptake social condition
Baseline	With pair mate	With pair mate
Short separation	Alone	Alone (after 48 h of separation)
Long separation	Alone	Alone (after 2	#x02013;3 weeks of separation)
Partner reunion	Alone	With pair mate
Stranger	Alone	With stranger female