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. Author manuscript; available in PMC: 2010 Jun 3.
Published in final edited form as: Int J Neuropsychopharmacol. 2008 Jul 23;12(1):95–107. doi: 10.1017/S1461145708009140

Figure 3.

Figure 3

Noradrenergic modulation of spontaneous activity in BLA projection neurons is altered after fourteen days of chronic cold exposure, but not seven. A) Electrophysiological trace of a BLA neuron displaying an antidromic spike in response to entorhinal cortical stimulation. Note the constant latency of the onset of the response. B) All BLA neurons confirmed as projection cells via antidromic activation from control and seven day cold-exposed rats were inhibited by microiontophoresis of NE. However, while a subset of neurons from rats exposed to 14 days of cold also displayed an inhibition, others displayed excitatory responses to NE iontophoresis.