Mesolimbic dopamine projection modulates amygdala-evoked EPSP in nucleus accumbens neurons: an in vivo study.
In urethane anesthetized rats, excitatory postsynaptic potential (EPSP) recorded intracellularly from nucleus accumbens neurons following stimulation of the amygdala was attenuated by repetitive stimulation of the ventral tegmental area (VTA). VTA stimulation also depolarized the resting membrane potential of accumbens neurons. Attenuation of the EPSP and membrane depolarization were frequently dissociated but both were blocked by haloperidol, a dopamine antagonist.
D000679:Amygdala / Q000502:physiology*; D000818:Animals; D004298:Dopamine / Q000502:physiology*; D004558:Electric Stimulation; D005071:Evoked Potentials; D008032:Limbic System / Q000502:physiology*; D008297:Male; D009714:Nucleus Accumbens / Q000502:physiology*; D051381:Rats; D011919:Rats, Inbred Strains; D012686:Septal Nuclei / Q000502:physiology*; D013569:Synapses / Q000502:physiology; D009435:Synaptic Transmission; D013681:Tegmentum Mesencephali / Q000502:physiology*
D004298:Dopamine