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Flexible, multifunctional neural probe with liquid metal enabled, ultra-large tunable stiffness for deep-brain chemical sensing and agent delivery.

Wen X, Wang B, Huang S, Liu TL, Lee MS, Chung PS, Chow YT, Huang IW, Monbouquette HG, Maidment NT, Chiou PY.

Biosens Bioelectron. 2019 Apr 15;131:37-45. doi: 10.1016/j.bios.2019.01.060. Epub 2019 Feb 7.


Junk Food Exposure Disrupts Selection of Food-Seeking Actions in Rats.

Kosheleff AR, Araki J, Tsan L, Chen G, Murphy NP, Maidment NT, Ostlund SB.

Front Psychiatry. 2018 Aug 16;9:350. doi: 10.3389/fpsyt.2018.00350. eCollection 2018.


Pattern of access determines influence of junk food diet on cue sensitivity and palatability.

Kosheleff AR, Araki J, Hsueh J, Le A, Quizon K, Ostlund SB, Maidment NT, Murphy NP.

Appetite. 2018 Apr 1;123:135-145. doi: 10.1016/j.appet.2017.12.009. Epub 2017 Dec 14.


Sex-specific enhancement of palatability-driven feeding in adolescent rats.

Marshall AT, Liu AT, Murphy NP, Maidment NT, Ostlund SB.

PLoS One. 2017 Jul 14;12(7):e0180907. doi: 10.1371/journal.pone.0180907. eCollection 2017.


Effects of decreased dopamine transporter levels on nigrostriatal neurons and paraquat/maneb toxicity in mice.

Richter F, Gabby L, McDowell KA, Mulligan CK, De La Rosa K, Sioshansi PC, Mortazavi F, Cely I, Ackerson LC, Tsan L, Murphy NP, Maidment NT, Chesselet MF.

Neurobiol Aging. 2017 Mar;51:54-66. doi: 10.1016/j.neurobiolaging.2016.11.015. Epub 2016 Dec 1.


Modulation of cue-triggered reward seeking by cholinergic signaling in the dorsomedial striatum.

Ostlund SB, Liu AT, Wassum KM, Maidment NT.

Eur J Neurosci. 2017 Feb;45(3):358-364. doi: 10.1111/ejn.13462. Epub 2016 Nov 21.


The neural chaperone proSAAS blocks α-synuclein fibrillation and neurotoxicity.

Jarvela TS, Lam HA, Helwig M, Lorenzen N, Otzen DE, McLean PJ, Maidment NT, Lindberg I.

Proc Natl Acad Sci U S A. 2016 Aug 9;113(32):E4708-15. doi: 10.1073/pnas.1601091113. Epub 2016 Jul 25.


Parsing the hedonic and motivational influences of nociceptin on feeding using licking microstructure analysis in mice.

Mendez IA, Maidment NT, Murphy NP.

Behav Pharmacol. 2016 Sep;27(6):516-27. doi: 10.1097/FBP.0000000000000240.


Involvement of Endogenous Enkephalins and β-Endorphin in Feeding and Diet-Induced Obesity.

Mendez IA, Ostlund SB, Maidment NT, Murphy NP.

Neuropsychopharmacology. 2015 Aug;40(9):2103-12. doi: 10.1038/npp.2015.67. Epub 2015 Mar 10.


Exogenous and evoked oxytocin restores social behavior in the Cntnap2 mouse model of autism.

Peñagarikano O, Lázaro MT, Lu XH, Gordon A, Dong H, Lam HA, Peles E, Maidment NT, Murphy NP, Yang XW, Golshani P, Geschwind DH.

Sci Transl Med. 2015 Jan 21;7(271):271ra8. doi: 10.1126/scitranslmed.3010257.


Inflated reward value in early opiate withdrawal.

Wassum KM, Greenfield VY, Linker KE, Maidment NT, Ostlund SB.

Addict Biol. 2016 Mar;21(2):221-33. doi: 10.1111/adb.12172. Epub 2014 Jul 31.


The redistribution of Drosophila vesicular monoamine transporter mutants from synaptic vesicles to large dense-core vesicles impairs amine-dependent behaviors.

Grygoruk A, Chen A, Martin CA, Lawal HO, Fei H, Gutierrez G, Biedermann T, Najibi R, Hadi R, Chouhan AK, Murphy NP, Schweizer FE, Macleod GT, Maidment NT, Krantz DE.

J Neurosci. 2014 May 14;34(20):6924-37. doi: 10.1523/JNEUROSCI.0694-14.2014.


Phasic mesolimbic dopamine signaling encodes the facilitation of incentive motivation produced by repeated cocaine exposure.

Ostlund SB, LeBlanc KH, Kosheleff AR, Wassum KM, Maidment NT.

Neuropsychopharmacology. 2014 Sep;39(10):2441-9. doi: 10.1038/npp.2014.96. Epub 2014 May 7.


Targeted expression of μ-opioid receptors in a subset of striatal direct-pathway neurons restores opiate reward.

Cui Y, Ostlund SB, James AS, Park CS, Ge W, Roberts KW, Mittal N, Murphy NP, Cepeda C, Kieffer BL, Levine MS, Jentsch JD, Walwyn WM, Sun YE, Evans CJ, Maidment NT, Yang XW.

Nat Neurosci. 2014 Feb;17(2):254-61. doi: 10.1038/nn.3622. Epub 2014 Jan 12.


Differential effects of systemic cholinergic receptor blockade on Pavlovian incentive motivation and goal-directed action selection.

Ostlund SB, Kosheleff AR, Maidment NT.

Neuropsychopharmacology. 2014 May;39(6):1490-7. doi: 10.1038/npp.2013.348. Epub 2013 Dec 27.


Repeated cocaine exposure facilitates the expression of incentive motivation and induces habitual control in rats.

LeBlanc KH, Maidment NT, Ostlund SB.

PLoS One. 2013 Apr 30;8(4):e61355. doi: 10.1371/journal.pone.0061355. Print 2013.


Impact of repeated intravenous cocaine administration on incentive motivation depends on mode of drug delivery.

LeBlanc KH, Maidment NT, Ostlund SB.

Addict Biol. 2014 Nov;19(6):965-71. doi: 10.1111/adb.12063. Epub 2013 May 3.


Decreased consumption of sweet fluids in μ opioid receptor knockout mice: a microstructural analysis of licking behavior.

Ostlund SB, Kosheleff A, Maidment NT, Murphy NP.

Psychopharmacology (Berl). 2013 Sep;229(1):105-13. doi: 10.1007/s00213-013-3077-x. Epub 2013 Apr 9.


Human hypocretin and melanin-concentrating hormone levels are linked to emotion and social interaction.

Blouin AM, Fried I, Wilson CL, Staba RJ, Behnke EJ, Lam HA, Maidment NT, Karlsson KÆ, Lapierre JL, Siegel JM.

Nat Commun. 2013;4:1547. doi: 10.1038/ncomms2461.


Phasic mesolimbic dopamine release tracks reward seeking during expression of Pavlovian-to-instrumental transfer.

Wassum KM, Ostlund SB, Loewinger GC, Maidment NT.

Biol Psychiatry. 2013 Apr 15;73(8):747-55. doi: 10.1016/j.biopsych.2012.12.005. Epub 2013 Jan 29.


Aldehyde dehydrogenase inhibition as a pathogenic mechanism in Parkinson disease.

Fitzmaurice AG, Rhodes SL, Lulla A, Murphy NP, Lam HA, O'Donnell KC, Barnhill L, Casida JE, Cockburn M, Sagasti A, Stahl MC, Maidment NT, Ritz B, Bronstein JM.

Proc Natl Acad Sci U S A. 2013 Jan 8;110(2):636-41. doi: 10.1073/pnas.1220399110. Epub 2012 Dec 24.


Drosophila modifier screens to identify novel neuropsychiatric drugs including aminergic agents for the possible treatment of Parkinson's disease and depression.

Lawal HO, Terrell A, Lam HA, Djapri C, Jang J, Hadi R, Roberts L, Shahi V, Chou MT, Biedermann T, Huang B, Lawless GM, Maidment NT, Krantz DE.

Mol Psychiatry. 2014 Feb;19(2):235-42. doi: 10.1038/mp.2012.170. Epub 2012 Dec 11.


Electrochemically deposited iridium oxide reference electrode integrated with an electroenzymatic glutamate sensor on a multi-electrode array microprobe.

Tolosa VM, Wassum KM, Maidment NT, Monbouquette HG.

Biosens Bioelectron. 2013 Apr 15;42:256-60. doi: 10.1016/j.bios.2012.10.061. Epub 2012 Nov 6.


Dispensable, redundant, complementary, and cooperative roles of dopamine, octopamine, and serotonin in Drosophila melanogaster.

Chen A, Ng F, Lebestky T, Grygoruk A, Djapri C, Lawal HO, Zaveri HA, Mehanzel F, Najibi R, Seidman G, Murphy NP, Kelly RL, Ackerson LC, Maidment NT, Jackson FR, Krantz DE.

Genetics. 2013 Jan;193(1):159-76. doi: 10.1534/genetics.112.142042. Epub 2012 Oct 19.


Pavlovian-to-instrumental transfer in cocaine seeking rats.

LeBlanc KH, Ostlund SB, Maidment NT.

Behav Neurosci. 2012 Oct;126(5):681-9. doi: 10.1037/a0029534. Epub 2012 Aug 6.


Relative response cost determines the sensitivity of instrumental reward seeking to dopamine receptor blockade.

Ostlund SB, Kosheleff AR, Maidment NT.

Neuropsychopharmacology. 2012 Nov;37(12):2653-60. doi: 10.1038/npp.2012.129. Epub 2012 Jul 18.


Ghrelin prevents levodopa-induced inhibition of gastric emptying and increases circulating levodopa in fasted rats.

Wang L, Murphy NP, Stengel A, Goebel-Stengel M, St Pierre DH, Maidment NT, Taché Y.

Neurogastroenterol Motil. 2012 May;24(5):e235-45. doi: 10.1111/j.1365-2982.2012.01904.x. Epub 2012 Mar 23.


Transient extracellular glutamate events in the basolateral amygdala track reward-seeking actions.

Wassum KM, Tolosa VM, Tseng TC, Balleine BW, Monbouquette HG, Maidment NT.

J Neurosci. 2012 Feb 22;32(8):2734-46. doi: 10.1523/JNEUROSCI.5780-11.2012.


Phasic mesolimbic dopamine signaling precedes and predicts performance of a self-initiated action sequence task.

Wassum KM, Ostlund SB, Maidment NT.

Biol Psychiatry. 2012 May 15;71(10):846-54. doi: 10.1016/j.biopsych.2011.12.019. Epub 2012 Feb 2.


Presynaptic control of rapid estrogen fluctuations in the songbird auditory forebrain.

Remage-Healey L, Dong S, Maidment NT, Schlinger BA.

J Neurosci. 2011 Jul 6;31(27):10034-8. doi: 10.1523/JNEUROSCI.0566-11.2011.


Differential dependence of Pavlovian incentive motivation and instrumental incentive learning processes on dopamine signaling.

Wassum KM, Ostlund SB, Balleine BW, Maidment NT.

Learn Mem. 2011 Jun 21;18(7):475-83. doi: 10.1101/lm.2229311. Print 2011.


Elevated tonic extracellular dopamine concentration and altered dopamine modulation of synaptic activity precede dopamine loss in the striatum of mice overexpressing human α-synuclein.

Lam HA, Wu N, Cely I, Kelly RL, Hean S, Richter F, Magen I, Cepeda C, Ackerson LC, Walwyn W, Masliah E, Chesselet MF, Levine MS, Maidment NT.

J Neurosci Res. 2011 Jul;89(7):1091-102. doi: 10.1002/jnr.22611. Epub 2011 Apr 12.


Analgesic tone conferred by constitutively active mu opioid receptors in mice lacking β-arrestin 2.

Lam H, Maga M, Pradhan A, Evans CJ, Maidment NT, Hales TG, Walwyn W.

Mol Pain. 2011 Apr 12;7:24. doi: 10.1186/1744-8069-7-24.


Micro-opioid receptor activation in the basolateral amygdala mediates the learning of increases but not decreases in the incentive value of a food reward.

Wassum KM, Cely IC, Balleine BW, Maidment NT.

J Neurosci. 2011 Feb 2;31(5):1591-9. doi: 10.1523/JNEUROSCI.3102-10.2011.


Extracellular dopamine levels in striatal subregions track shifts in motivation and response cost during instrumental conditioning.

Ostlund SB, Wassum KM, Murphy NP, Balleine BW, Maidment NT.

J Neurosci. 2011 Jan 5;31(1):200-7. doi: 10.1523/JNEUROSCI.4759-10.2011.


Alcohol-Paired Contextual Cues Produce an Immediate and Selective Loss of Goal-directed Action in Rats.

Ostlund SB, Maidment NT, Balleine BW.

Front Integr Neurosci. 2010 Jul 19;4. pii: 19. doi: 10.3389/fnint.2010.00019. eCollection 2010.


Mutation of the Drosophila vesicular GABA transporter disrupts visual figure detection.

Fei H, Chow DM, Chen A, Romero-Calderón R, Ong WS, Ackerson LC, Maidment NT, Simpson JH, Frye MA, Krantz DE.

J Exp Biol. 2010 May;213(Pt 10):1717-30. doi: 10.1242/jeb.036053.


Disruption of endogenous opioid activity during instrumental learning enhances habit acquisition.

Wassum KM, Cely IC, Maidment NT, Balleine BW.

Neuroscience. 2009 Oct 20;163(3):770-80. doi: 10.1016/j.neuroscience.2009.06.071. Epub 2009 Jul 18.


Distinct opioid circuits determine the palatability and the desirability of rewarding events.

Wassum KM, Ostlund SB, Maidment NT, Balleine BW.

Proc Natl Acad Sci U S A. 2009 Jul 28;106(30):12512-7. doi: 10.1073/pnas.0905874106. Epub 2009 Jul 13.


Bacterial artificial chromosome transgenic mice expressing a truncated mutant parkin exhibit age-dependent hypokinetic motor deficits, dopaminergic neuron degeneration, and accumulation of proteinase K-resistant alpha-synuclein.

Lu XH, Fleming SM, Meurers B, Ackerson LC, Mortazavi F, Lo V, Hernandez D, Sulzer D, Jackson GR, Maidment NT, Chesselet MF, Yang XW.

J Neurosci. 2009 Feb 18;29(7):1962-76. doi: 10.1523/JNEUROSCI.5351-08.2009.


Drosophila vesicular monoamine transporter mutants can adapt to reduced or eliminated vesicular stores of dopamine and serotonin.

Simon AF, Daniels R, Romero-Calderón R, Grygoruk A, Chang HY, Najibi R, Shamouelian D, Salazar E, Solomon M, Ackerson LC, Maidment NT, Diantonio A, Krantz DE.

Genetics. 2009 Feb;181(2):525-41. doi: 10.1534/genetics.108.094110. Epub 2008 Nov 24.


A glial variant of the vesicular monoamine transporter is required to store histamine in the Drosophila visual system.

Romero-Calderón R, Uhlenbrock G, Borycz J, Simon AF, Grygoruk A, Yee SK, Shyer A, Ackerson LC, Maidment NT, Meinertzhagen IA, Hovemann BT, Krantz DE.

PLoS Genet. 2008 Nov;4(11):e1000245. doi: 10.1371/journal.pgen.1000245. Epub 2008 Nov 7.


Forebrain steroid levels fluctuate rapidly during social interactions.

Remage-Healey L, Maidment NT, Schlinger BA.

Nat Neurosci. 2008 Nov;11(11):1327-34. doi: 10.1038/nn.2200. Epub 2008 Sep 28.


Silicon Wafer-Based Platinum Microelectrode Array Biosensor for Near Real-Time Measurement of Glutamate in Vivo.

Wassum KM, Tolosa VM, Wang J, Walker E, Monbouquette HG, Maidment NT.

Sensors (Basel). 2008;8(8):5023-5036.


Selective detection of extracellular glutamate in brain tissue using microelectrode arrays coated with over-oxidized polypyrrole.

Walker E, Wang J, Hamdi N, Monbouquette HG, Maidment NT.

Analyst. 2007 Nov;132(11):1107-11. Epub 2007 Sep 19.


Enkephalin release promotes homeostatic increases in constitutively active mu opioid receptors during morphine withdrawal.

Shoblock JR, Maidment NT.

Neuroscience. 2007 Nov 9;149(3):642-9. Epub 2007 Oct 1.


Activation of nigral and pallidal dopamine D1-like receptors modulates basal ganglia outflow in monkeys.

Kliem MA, Maidment NT, Ackerson LC, Chen S, Smith Y, Wichmann T.

J Neurophysiol. 2007 Sep;98(3):1489-500. Epub 2007 Jul 18.


A Drosophila model of mutant human parkin-induced toxicity demonstrates selective loss of dopaminergic neurons and dependence on cellular dopamine.

Sang TK, Chang HY, Lawless GM, Ratnaparkhi A, Mee L, Ackerson LC, Maidment NT, Krantz DE, Jackson GR.

J Neurosci. 2007 Jan 31;27(5):981-92.


Mu opioid receptor-effector coupling and trafficking in dorsal root ganglia neurons.

Walwyn WM, Wei W, Xie CW, Chiu K, Kieffer BL, Evans CJ, Maidment NT.

Neuroscience. 2006 Oct 13;142(2):493-503. Epub 2006 Aug 1.


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