1. Lacey MG, Mercuri NB and North RA. (1987) Dopamine acts on D2 receptors to increase potassium conductance in neurones of the rat substantia nigra zona compacta. J Physiol 392:397-416.

NeuronCompartmentPropertyConnectivityNotes
Substantia nigra pars compacta DA cellDistal apical dendriteDopamine-----DA is released from dendrites (Geffen LB et al, 1976 [rat]2 ). Korf et al, 1976; Cheramy et al 1981) by backpropagating impulse (Häusser M et al, 1995 [rat]3 ). acts on D2 autoreceptors (Lacey MG et al, 1987 [rat]1 ). 1990) causing hyperpolarization, and presynaptic GABAb receptors causing enhancement of synaptic inhibition (Cameron and Williams, 1993). (Reviewed in (Häusser M et al, 1995 [rat]3 ).
Substantia nigra pars compacta DA cellMiddle apical dendriteDopamine-----DA is released from dendrites (Geffen LB et al, 1976 [rat]2 ). Korf et al, 1976; Cheramy et al 1981) by backpropagating impulse (Häusser M et al, 1995 [rat]3 ). acts on D2 autoreceptors (Lacey MG et al, 1987 [rat]1 ). 1990) causing hyperpolarization, and presynaptic GABAb receptors causing enhancement of synaptic inhibition (Cameron and Williams, 1993). (Reviewed in (Häusser M et al, 1995 [rat]3 ).
Substantia nigra pars compacta DA cellProximal apical dendriteDopamine-----DA is released from dendrites (Geffen LB et al, 1976 [rat]2 ). Korf et al, 1976; Cheramy et al 1981) by backpropagating impulse (Häusser M et al, 1995 [rat]3 ). acts on D2 autoreceptors (Lacey MG et al, 1987 [rat]1 ). 1990) causing hyperpolarization, and presynaptic GABAb receptors causing enhancement of synaptic inhibition (Cameron and Williams, 1993). (Reviewed in (Häusser M et al, 1995 [rat]3 ).

Classical References: first publications on each compartmental property; search PubMed for complete list
1.  Lacey MG, Mercuri NB and North RA. (1987) Dopamine acts on D2 receptors to increase potassium conductance in neurones of the rat substantia nigra zona compacta. J Physiol 392:397-416.
2.  Geffen LB, Jessell TM, Cuello AC and Iversen LL. (1976) Release of dopamine from dendrites in rat substantia nigra. Nature 260:258-60.
3.  Häusser M, Stuart G, Racca C and Sakmann B. (1995) Axonal initiation and active dendritic propagation of action potentials in substantia nigra neurons. Neuron 15:637-47.