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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Biol Psychiatry. 2014 Jun 18;77(7):633–641. doi: 10.1016/j.biopsych.2014.06.008

Figure 2.

Figure 2

Neuropeptide Y (NPY) in the nucleus accumbens decreases neuronal activity in vivo. (A) Location of electrodes (black spots) and cannulae (filled black circles) projected on a mouse brain atlas section (51). (B) Interspike interval (ISI) histograms and waveforms from a single unit in artificial cerebrospinal fluid (aCSF) infusion sessions (left) and the same neuron in NPY infusion sessions (right). (C, D) Average neuronal activity for NPY sessions and aCSF. Gray box represents time of infusion. NPY significantly reduces firing rate from 15 minutes to 40 minutes. * p < .05. Norm., normalized.