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. 2009 Aug 12;102(4):2194–2207. doi: 10.1152/jn.00301.2009

Fig. 7.

Fig. 7.

Cholinergic BF neurons display stereotypical properties that remain very similar during aging and are unaffected by cognitive status. Examples shown are from current-clamped ChAT+ BF neurons from a young, an aged cognitively unimpaired and an aged cognitively impaired rat. Each neuron's resting membrane potential (Em) was near −60 mV, and small depolarizing and hyperpolarizing current steps were applied to produce action potentials and inward rectification. Insets are photos of the acutely dissociated neurons.