PMID- 29861281 OWN - NLM STAT- MEDLINE DCOM- 20190805 LR - 20190805 IS - 1097-4199 (Electronic) IS - 0896-6273 (Print) IS - 0896-6273 (Linking) VI - 98 IP - 6 DP - 2018 Jun 27 TI - Blocking NMDAR Disrupts Spike Timing and Decouples Monkey Prefrontal Circuits: Implications for Activity-Dependent Disconnection in Schizophrenia. PG - 1243-1255.e5 LID - S0896-6273(18)30382-9 [pii] LID - 10.1016/j.neuron.2018.05.010 [doi] AB - We employed multi-electrode array recording to evaluate the influence of NMDA receptors (NMDAR) on spike-timing dynamics in prefrontal networks of monkeys as they performed a cognitive control task measuring specific deficits in schizophrenia. Systemic, periodic administration of an NMDAR antagonist (phencyclidine) reduced the prevalence and strength of synchronous (0-lag) spike correlation in simultaneously recorded neuron pairs. We employed transfer entropy analysis to measure effective connectivity between prefrontal neurons at lags consistent with monosynaptic interactions and found that effective connectivity was persistently reduced following exposure to the NMDAR antagonist. These results suggest that a disruption of spike timing and effective connectivity might be interrelated factors in pathogenesis, supporting an activity-dependent disconnection theory of schizophrenia. In this theory, disruption of NMDAR synaptic function leads to dysregulated timing of action potentials in prefrontal networks, accelerating synaptic disconnection through a spike-timing-dependent mechanism. CI - Copyright (c) 2018 Elsevier Inc. All rights reserved. FAU - Zick, Jennifer L AU - Zick JL AD - Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA; Medical Scientist Training Program (MD/PhD), University of Minnesota, Minneapolis, MN 55455, USA. FAU - Blackman, Rachael K AU - Blackman RK AD - Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA; Medical Scientist Training Program (MD/PhD), University of Minnesota, Minneapolis, MN 55455, USA. FAU - Crowe, David A AU - Crowe DA AD - Department of Biology, Augsburg University, Minneapolis, MN 55454, USA. FAU - Amirikian, Bagrat AU - Amirikian B AD - Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA; Center for Cognitive Sciences, University of Minnesota, Minneapolis, MN 55455, USA; Brain Sciences Center, VA Medical Center, Minneapolis, MN 55417, USA. FAU - DeNicola, Adele L AU - DeNicola AL AD - Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA; Brain Sciences Center, VA Medical Center, Minneapolis, MN 55417, USA. FAU - Netoff, Theoden I AU - Netoff TI AD - Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, 55455 USA. FAU - Chafee, Matthew V AU - Chafee MV AD - Department of Neuroscience, University of Minnesota, Minneapolis, MN 55455, USA; Center for Cognitive Sciences, University of Minnesota, Minneapolis, MN 55455, USA; Brain Sciences Center, VA Medical Center, Minneapolis, MN 55417, USA. Electronic address: chafe001@umn.edu. LA - eng GR - R25 MH101076/MH/NIMH NIH HHS/United States GR - F31 MH109238/MH/NIMH NIH HHS/United States GR - F30 MH108205/MH/NIMH NIH HHS/United States GR - R01 MH077779/MH/NIMH NIH HHS/United States GR - R01 MH107491/MH/NIMH NIH HHS/United States GR - T32 GM008471/GM/NIGMS NIH HHS/United States GR - T32 GM008244/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20180531 PL - United States TA - Neuron JT - Neuron JID - 8809320 RN - 0 (Excitatory Amino Acid Antagonists) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - J1DOI7UV76 (Phencyclidine) MH - Action Potentials/drug effects/physiology MH - Animals MH - Cognition/drug effects/*physiology MH - Cortical Synchronization/drug effects/*physiology MH - Excitatory Amino Acid Antagonists/pharmacology MH - Executive Function/drug effects/*physiology MH - Macaca mulatta MH - Neural Pathways/drug effects/metabolism/physiopathology MH - Neurons/drug effects/*metabolism MH - Phencyclidine/pharmacology MH - Prefrontal Cortex/drug effects/*metabolism/physiopathology MH - Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors/*metabolism MH - Schizophrenia/*metabolism/physiopathology MH - Task Performance and Analysis MH - Time Factors PMC - PMC6085178 MID - NIHMS981962 OTO - NOTNLM OT - NMDAR antagonist OT - STDP OT - animal model OT - cross correlation OT - effective connectivity OT - neural synchrony OT - nonhuman primate OT - spike correlation OT - transfer entropy EDAT- 2018/06/05 06:00 MHDA- 2019/08/06 06:00 PMCR- 2018/08/09 CRDT- 2018/06/05 06:00 PHST- 2017/10/01 00:00 [received] PHST- 2018/03/06 00:00 [revised] PHST- 2018/05/04 00:00 [accepted] PHST- 2018/06/05 06:00 [pubmed] PHST- 2019/08/06 06:00 [medline] PHST- 2018/06/05 06:00 [entrez] PHST- 2018/08/09 00:00 [pmc-release] AID - S0896-6273(18)30382-9 [pii] AID - 10.1016/j.neuron.2018.05.010 [doi] PST - ppublish SO - Neuron. 2018 Jun 27;98(6):1243-1255.e5. doi: 10.1016/j.neuron.2018.05.010. Epub 2018 May 31.