1. Tang AC and Hasselmo ME. (1994) Selective suppression of intrinsic but not afferent fiber synaptic transmission by baclofen in the piriform (olfactory) cortex. Brain Res 659:75-81.

NeuronCompartmentPropertyConnectivityNotes
Piriform cortex anterior interneuron deep layer GABA cellAxon terminalGabaBGABAB presynaptic mechanism?Baclofen suppresses field potentials at the intrinsic fiber synapses proximal to the pyramidal cell bodies (layer Ib) but not field potential at distal dendrites (layer Ia). afferent and intrinsic synaptic inputs may be differentially modulated by the activation of GABAB receptors and that this selective suppression is at least partially mediated via a presynaptic mechanism (at the interneuron terminals?) (Tang AC and Hasselmo ME, 19941 ). Although both the soma and distal dendrites have both the fast and slow GABAA-mediated IPSCs, there is a greater proportion of slow component in the dendrites. Slow GABAA mediated IPSC component is regulated by presynaptic GABAB inhibition (at the interneuron terminals?) whereas the fast is not (Kapur A et al, 19972 ).
Piriform cortex anterior interneuron superficial GABA cellAxon terminalGabaB.Differential GABABergic presynaptic modulation in layers Ia and Ib: While baclofen suppresses field potentials at the intrinsic fiber synapses proximal to the pyramidal cell bodies (layer Ib), it does not affect field potentials at distal dendrites (layer Ia) (Tang AC and Hasselmo ME, 19941 ).

Classical References: first publications on each compartmental property; search PubMed for complete list
1.  Tang AC and Hasselmo ME. (1994) Selective suppression of intrinsic but not afferent fiber synaptic transmission by baclofen in the piriform (olfactory) cortex. Brain Res 659:75-81.
2.  Kapur A, Pearce RA, Lytton WW and Haberly LB. (1997) GABAA-mediated IPSCs in piriform cortex have fast and slow components with different properties and locations on pyramidal cells. J Neurophysiol 78:2531-45 [Journal] .