Glutamatergic mechanisms of the dorsal periaqueductal gray matter modulate the expression of conditioned freezing and fear-potentiated startle
Keywords: ANOVA; analysis of variance; AP7; d(â)-2-Amino-7-phosphonoheptanoic acid; CS; conditioned stimulus; dPAG; dorsal periaqueductal gray matter; EAA; excitatory amino acids; FPS; fear-potentiated startle; KA; kainic acid; NBQX; 1,2,3,4-Tetrahydro-6-nitro-2,