BLA (basal amygdaloid nucleus) functionally connects to GU (Gustatory areas)

BLA stimulation evoked PSPs in GC neurons with onset delays consistent with monosynaptic input. The responses had early excitatory and later inhibitory components, and some GC neurons responded to both BLA and VPMpc. Single BLA shocks or 20-Hz BLA bursts given before VPMpc stimulation enhanced or suppressed VPMpc-evoked PSPs, depending on timing.

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In urethane-anesthetized rats, electrical stimulation of BLA evoked, in GC regular-spiking neurons recorded intracellularly, an early depolarizing PSP that grew with stimulus intensity. Its early component reversed near the glutamatergic (AMPA-type) reversal potential, consistent with a likely monosynaptic excitatory input. It was followed by a slower, likely multisynaptic hyperpolarization that reversed near the GABA-A reversal potential.

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