Nicotinic receptors modulate olfactory bulb external tufted cells via an excitation-dependent inhibitory mechanism.
D'Souza RD, Parsa PV, Vijayaraghavan S. Nicotinic receptors modulate olfactory bulb external tufted cells via an excitation-dependent inhibitory mechanism. J Neurophysiol. 2013 Oct; 110(7):1544-53.