Table 1.

Changes in free amino acid concentrations (pmol/mg wet tissue) in the brain regions corresponding to feeding behavior in chicks

Amino acids	Telencephalon		Diencephalon		Mesencephalon		Cerebellum		Brain stem		P value
	Hungry	Satiated	Hungry	Satiated	Hungry	Satiated	Hungry	Satiated	Hungry	Satiated	FB	BR	Interaction
l-Aspartic acid	3,379 ± 189	3,217 ± 113	2,769 ± 136	2,811 ± 279	3,897 ± 83	3,952 ± 102	2,721 ± 136	2,856 ± 87	3,030 ± 204	3,196 ± 174	NS	<0.0001	NS
Taurine	9,051 ± 526	8,606 ± 365	3,713 ± 175	3,697 ± 112	2,810 ± 41	3,062 ± 138	7,016 ± 286	7,174 ± 167	3,402 ± 204	3,566 ± 203	NS	<0.0001	NS
l-Alanine	856 ± 58	787 ± 28	686 ± 31	675 ± 35	716 ± 22	566 ± 22	766 ± 51	787 ± 37	676 ± 52	749 ± 29	NS	<0.0001	NS
GABA	3,303 ± 196	3,190 ± 68	5,128 ± 161	5,052 ± 221	6,027 ± 154	5,354 ± 135	2,061 ± 102	2,194 ± 95	3,237 ± 264	3,492 ± 189	NS	<0.0001	NS

Values are mean ± SEM. n = 7–8 in each group.

FB feeding behavior, BR brain region, NS not significant.