PMID- 18463262 OWN - NLM STAT- MEDLINE DCOM- 20080613 LR - 20220223 IS - 1529-2401 (Electronic) IS - 0270-6474 (Print) IS - 0270-6474 (Linking) VI - 28 IP - 19 DP - 2008 May 7 TI - Dorsomedial prefrontal cortex contribution to behavioral and nucleus accumbens neuronal responses to incentive cues. PG - 5088-98 LID - 10.1523/JNEUROSCI.0253-08.2008 [doi] AB - Cue-elicited phasic changes in firing of nucleus accumbens (NAc) neurons can facilitate reward-seeking behavior. Here, we test the hypothesis that the medial prefrontal cortex (mPFC), which sends a dense glutamatergic projection to the NAc core, contributes to NAc neuronal firing responses to reward-predictive cues. Rats trained to perform an operant response to a cue for sucrose were implanted with recording electrodes in the core of the NAc and microinjection cannulas in the dorsal mPFC (dmPFC). The cue-evoked firing of NAc neurons was reduced by bilateral injection of GABA(A) and GABA(B) agonists into the dmPFC concomitant with loss of behavioral responding to the cue. In addition, unilateral dmPFC inactivation reduced ipsilateral cue excitations and contralateral cue inhibitions. These findings indicate that cue-evoked excitations and inhibitions of NAc core neurons depend on dmPFC projections to the NAc and that these phasic changes contribute to the behavioral response to reward-predictive cues. FAU - Ishikawa, Akinori AU - Ishikawa A AD - Ernest Gallo Clinic and Research Center and Department of Neurology, University of California, San Francisco, Emeryville, California 94608, USA. akinori@yamaguchi-u.ac.jp FAU - Ambroggi, Frederic AU - Ambroggi F FAU - Nicola, Saleem M AU - Nicola SM FAU - Fields, Howard L AU - Fields HL LA - eng GR - R01 DA019473/DA/NIDA NIH HHS/United States GR - R01 DA019473-04/DA/NIDA NIH HHS/United States GR - DA019473/DA/NIDA NIH HHS/United States GR - R01 DA019473-01A1/DA/NIDA NIH HHS/United States GR - R01 DA019473-02/DA/NIDA NIH HHS/United States GR - R01 DA019473-03/DA/NIDA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurosci JT - The Journal of neuroscience : the official journal of the Society for Neuroscience JID - 8102140 RN - 0 (GABA Agonists) RN - 0 (GABA-A Receptor Agonists) RN - 0 (GABA-B Receptor Agonists) SB - IM MH - Animals MH - Behavior, Animal/*physiology MH - *Cues MH - Electrophysiology MH - GABA Agonists/administration & dosage/pharmacology MH - GABA-A Receptor Agonists MH - GABA-B Receptor Agonists MH - Male MH - Microinjections MH - *Motivation MH - Neural Inhibition/physiology MH - Neurons/*physiology MH - Nucleus Accumbens/*physiology MH - Prefrontal Cortex/*physiology MH - Rats MH - Rats, Long-Evans MH - Reward MH - Synaptic Transmission/physiology PMC - PMC2661106 MID - NIHMS83452 EDAT- 2008/05/09 09:00 MHDA- 2008/06/14 09:00 PMCR- 2008/11/07 CRDT- 2008/05/09 09:00 PHST- 2008/05/09 09:00 [pubmed] PHST- 2008/06/14 09:00 [medline] PHST- 2008/05/09 09:00 [entrez] PHST- 2008/11/07 00:00 [pmc-release] AID - 28/19/5088 [pii] AID - 3349678 [pii] AID - 10.1523/JNEUROSCI.0253-08.2008 [doi] PST - ppublish SO - J Neurosci. 2008 May 7;28(19):5088-98. doi: 10.1523/JNEUROSCI.0253-08.2008.