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The generation and propagation of the human alpha rhythm.

Halgren M, Ulbert I, Bastuji H, Fabó D, Erőss L, Rey M, Devinsky O, Doyle WK, Mak-McCully R, Halgren E, Wittner L, Chauvel P, Heit G, Eskandar E, Mandell A, Cash SS.

Proc Natl Acad Sci U S A. 2019 Nov 19;116(47):23772-23782. doi: 10.1073/pnas.1913092116. Epub 2019 Nov 4.


Correction: Method for spike detection from microelectrode array recordings contaminated by artifacts of simultaneous two-photon imaging.

Orbán G, Meszéna D, Tasnády KR, Rózsa B, Ulbert I, Márton G.

PLoS One. 2019 Oct 24;14(10):e0224590. doi: 10.1371/journal.pone.0224590. eCollection 2019.


Reorganization of Large-Scale Functional Networks During Low-Frequency Electrical Stimulation of the Cortical Surface.

File B, Nánási T, Tóth E, Bokodi V, Tóth B, Hajnal B, Kardos Z, Entz L, Erőss L, Ulbert I, Fabó D.

Int J Neural Syst. 2019 Jul 29:1950022. doi: 10.1142/S0129065719500229. [Epub ahead of print]


Spike detection and sorting with deep learning.

Rácz M, Liber C, Németh E, Fiáth R, Rokai J, Harmati I, Ulbert I, Márton G.

J Neural Eng. 2020 Jan 24;17(1):016038. doi: 10.1088/1741-2552/ab4896.


Presence of synchrony-generating hubs in the human epileptic neocortex.

Kandrács Á, Hofer KT, Tóth K, Tóth EZ, Entz L, Bagó AG, Erőss L, Jordán Z, Nagy G, Fabó D, Ulbert I, Wittner L.

J Physiol. 2019 Dec;597(23):5639-5670. doi: 10.1113/JP278499. Epub 2019 Oct 10.


Method for spike detection from microelectrode array recordings contaminated by artifacts of simultaneous two-photon imaging.

Orbán G, Meszéna D, Tasnády KR, Rózsa B, Ulbert I, Márton G.

PLoS One. 2019 Aug 20;14(8):e0221510. doi: 10.1371/journal.pone.0221510. eCollection 2019. Erratum in: PLoS One. 2019 Oct 24;14(10):e0224590.


A softening laminar electrode for recording single unit activity from the rat hippocampus.

Zátonyi A, Orbán G, Modi R, Márton G, Meszéna D, Ulbert I, Pongrácz A, Ecker M, Voit WE, Joshi-Imre A, Fekete Z.

Sci Rep. 2019 Feb 20;9(1):2321. doi: 10.1038/s41598-019-39835-6.


Delay differential analysis for dynamical sleep spindle detection.

Sampson AL, Lainscsek C, Gonzalez CE, Ulbert I, Devinsky O, Fabó D, Madsen JR, Halgren E, Cash SS, Sejnowski TJ.

J Neurosci Methods. 2019 Mar 15;316:12-21. doi: 10.1016/j.jneumeth.2019.01.009. Epub 2019 Jan 30.


Slow insertion of silicon probes improves the quality of acute neuronal recordings.

Fiáth R, Márton AL, Mátyás F, Pinke D, Márton G, Tóth K, Ulbert I.

Sci Rep. 2019 Jan 14;9(1):111. doi: 10.1038/s41598-018-36816-z.


Simulating human sleep spindle MEG and EEG from ion channel and circuit level dynamics.

Rosen BQ, Krishnan GP, Sanda P, Komarov M, Sejnowski T, Rulkov N, Ulbert I, Eross L, Madsen J, Devinsky O, Doyle W, Fabo D, Cash S, Bazhenov M, Halgren E.

J Neurosci Methods. 2019 Mar 15;316:46-57. doi: 10.1016/j.jneumeth.2018.10.002. Epub 2018 Oct 6.


Fine-scale mapping of cortical laminar activity during sleep slow oscillations using high-density linear silicon probes.

Fiáth R, Raducanu BC, Musa S, Andrei A, Lopez CM, Welkenhuysen M, Ruther P, Aarts A, Ulbert I.

J Neurosci Methods. 2019 Mar 15;316:58-70. doi: 10.1016/j.jneumeth.2018.08.020. Epub 2018 Aug 23.


Emergence of polarized opinions from free association networks.

File B, Keczer Z, Vancsó A, Bőthe B, Tóth-Király I, Hunyadi M, Ujhelyi A, Ulbert I, Góth J, Orosz G.

Behav Res Methods. 2019 Feb;51(1):280-294. doi: 10.3758/s13428-018-1090-z.


Long-term recording performance and biocompatibility of chronically implanted cylindrically-shaped, polymer-based neural interfaces.

Fiáth R, Hofer KT, Csikós V, Horváth D, Nánási T, Tóth K, Pothof F, Böhler C, Asplund M, Ruther P, Ulbert I.

Biomed Tech (Berl). 2018 Jun 27;63(3):301-315. doi: 10.1515/bmt-2017-0154.


Heterogeneous Origins of Human Sleep Spindles in Different Cortical Layers.

Hagler DJ Jr, Ulbert I, Wittner L, Erőss L, Madsen JR, Devinsky O, Doyle W, Fabó D, Cash SS, Halgren E.

J Neurosci. 2018 Mar 21;38(12):3013-3025. doi: 10.1523/JNEUROSCI.2241-17.2018. Epub 2018 Feb 15.


A silicon-based neural probe with densely-packed low-impedance titanium nitride microelectrodes for ultrahigh-resolution in vivo recordings.

Fiáth R, Raducanu BC, Musa S, Andrei A, Lopez CM, van Hoof C, Ruther P, Aarts A, Horváth D, Ulbert I.

Biosens Bioelectron. 2018 May 30;106:86-92. doi: 10.1016/j.bios.2018.01.060. Epub 2018 Jan 31.


Superficial Slow Rhythms Integrate Cortical Processing in Humans.

Halgren M, Fabó D, Ulbert I, Madsen JR, Erőss L, Doyle WK, Devinsky O, Schomer D, Cash SS, Halgren E.

Sci Rep. 2018 Feb 1;8(1):2055. doi: 10.1038/s41598-018-20662-0.


Hyperexcitability of the network contributes to synchronization processes in the human epileptic neocortex.

Tóth K, Hofer KT, Kandrács Á, Entz L, Bagó A, Erőss L, Jordán Z, Nagy G, Sólyom A, Fabó D, Ulbert I, Wittner L.

J Physiol. 2018 Jan 15;596(2):317-342. doi: 10.1113/JP275413. Epub 2017 Dec 28.


Revealing the distribution of transmembrane currents along the dendritic tree of a neuron from extracellular recordings.

Cserpán D, Meszéna D, Wittner L, Tóth K, Ulbert I, Somogyvári Z, Wójcik DK.

Elife. 2017 Nov 17;6. pii: e29384. doi: 10.7554/eLife.29384.


Time Multiplexed Active Neural Probe with 1356 Parallel Recording Sites.

Raducanu BC, Yazicioglu RF, Lopez CM, Ballini M, Putzeys J, Wang S, Andrei A, Rochus V, Welkenhuysen M, Helleputte NV, Musa S, Puers R, Kloosterman F, Hoof CV, Fiáth R, Ulbert I, Mitra S.

Sensors (Basel). 2017 Oct 19;17(10). pii: E2388. doi: 10.3390/s17102388.


Hybrid intracerebral probe with integrated bare LED chips for optogenetic studies.

Ayub S, Gentet LJ, Fiáth R, Schwaerzle M, Borel M, David F, Barthó P, Ulbert I, Paul O, Ruther P.

Biomed Microdevices. 2017 Sep;19(3):49. doi: 10.1007/s10544-017-0190-3.


Neurobiochemical changes in the vicinity of a nanostructured neural implant.

Bérces Z, Tóth K, Márton G, Pál I, Kováts-Megyesi B, Fekete Z, Ulbert I, Pongrácz A.

Sci Rep. 2016 Oct 24;6:35944. doi: 10.1038/srep35944.


Large-scale recording of thalamocortical circuits: in vivo electrophysiology with the two-dimensional electronic depth control silicon probe.

Fiáth R, Beregszászi P, Horváth D, Wittner L, Aarts AA, Ruther P, Neves HP, Bokor H, Acsády L, Ulbert I.

J Neurophysiol. 2016 Nov 1;116(5):2312-2330. doi: 10.1152/jn.00318.2016. Epub 2016 Aug 17.


Laminar analysis of the slow wave activity in the somatosensory cortex of anesthetized rats.

Fiáth R, Kerekes BP, Wittner L, Tóth K, Beregszászi P, Horváth D, Ulbert I.

Eur J Neurosci. 2016 Aug;44(3):1935-51. doi: 10.1111/ejn.13274. Epub 2016 Jun 9.


A Multimodal, SU-8 - Platinum - Polyimide Microelectrode Array for Chronic In Vivo Neurophysiology.

Márton G, Orbán G, Kiss M, Fiáth R, Pongrácz A, Ulbert I.

PLoS One. 2015 Dec 18;10(12):e0145307. doi: 10.1371/journal.pone.0145307. eCollection 2015.


Intracranial neuronal ensemble recordings and analysis in epilepsy.

Tóth E, Fabó D, Entz L, Ulbert I, Erőss L.

J Neurosci Methods. 2016 Feb 15;260:261-9. doi: 10.1016/j.jneumeth.2015.09.028. Epub 2015 Oct 8. Review.


Combined two-photon imaging, electrophysiological, and anatomical investigation of the human neocortex in vitro.

Kerekes BP, Tóth K, Kaszás A, Chiovini B, Szadai Z, Szalay G, Pálfi D, Bagó A, Spitzer K, Rózsa B, Ulbert I, Wittner L.

Neurophotonics. 2014 Jul;1(1):011013. doi: 10.1117/1.NPh.1.1.011013. Epub 2014 Sep 11.


Laminar profile of spontaneous and evoked theta: Rhythmic modulation of cortical processing during word integration.

Halgren E, Kaestner E, Marinkovic K, Cash SS, Wang C, Schomer DL, Madsen JR, Ulbert I.

Neuropsychologia. 2015 Sep;76:108-24. doi: 10.1016/j.neuropsychologia.2015.03.021. Epub 2015 Mar 20.


Experimental study on the mechanical interaction between silicon neural microprobes and rat dura mater during insertion.

Fekete Z, Németh A, Márton G, Ulbert I, Pongrácz A.

J Mater Sci Mater Med. 2015 Feb;26(2):70. doi: 10.1007/s10856-015-5401-y. Epub 2015 Jan 29.


The hippocampal CA3 region can generate two distinct types of sharp wave-ripple complexes, in vitro.

Hofer KT, Kandrács Á, Ulbert I, Pál I, Szabó C, Héja L, Wittner L.

Hippocampus. 2015 Feb;25(2):169-86. doi: 10.1002/hipo.22361. Epub 2014 Sep 25.


Mapping human brain networks with cortico-cortical evoked potentials.

Keller CJ, Honey CJ, Mégevand P, Entz L, Ulbert I, Mehta AD.

Philos Trans R Soc Lond B Biol Sci. 2014 Oct 5;369(1653). pii: 20130528. doi: 10.1098/rstb.2013.0528.


Evoked effective connectivity of the human neocortex.

Entz L, Tóth E, Keller CJ, Bickel S, Groppe DM, Fabó D, Kozák LR, Erőss L, Ulbert I, Mehta AD.

Hum Brain Mapp. 2014 Dec;35(12):5736-53. doi: 10.1002/hbm.22581. Epub 2014 Jul 12.


Corticocortical evoked potentials reveal projectors and integrators in human brain networks.

Keller CJ, Honey CJ, Entz L, Bickel S, Groppe DM, Toth E, Ulbert I, Lado FA, Mehta AD.

J Neurosci. 2014 Jul 2;34(27):9152-63. doi: 10.1523/JNEUROSCI.4289-13.2014.


Ongoing network state controls the length of sleep spindles via inhibitory activity.

Barthó P, Slézia A, Mátyás F, Faradzs-Zade L, Ulbert I, Harris KD, Acsády L.

Neuron. 2014 Jun 18;82(6):1367-79. doi: 10.1016/j.neuron.2014.04.046.


Physiological sharp wave-ripples and interictal events in vitro: what's the difference?

Karlócai MR, Kohus Z, Káli S, Ulbert I, Szabó G, Máté Z, Freund TF, Gulyás AI.

Brain. 2014 Feb;137(Pt 2):463-85. doi: 10.1093/brain/awt348. Epub 2014 Jan 2.


Durability of high surface area platinum deposits on microelectrode arrays for acute neural recordings.

Márton G, Bakos I, Fekete Z, Ulbert I, Pongrácz A.

J Mater Sci Mater Med. 2014 Mar;25(3):931-40. doi: 10.1007/s10856-013-5114-z. Epub 2013 Dec 7.


In vivo validation of the electronic depth control probes.

Dombovári B, Fiáth R, Kerekes BP, Tóth E, Wittner L, Horváth D, Seidl K, Herwik S, Torfs T, Paul O, Ruther P, Neves H, Ulbert I.

Biomed Tech (Berl). 2014 Aug;59(4):283-9. doi: 10.1515/bmt-2012-0102.


Input-output features of anatomically identified CA3 neurons during hippocampal sharp wave/ripple oscillation in vitro.

Hájos N, Karlócai MR, Németh B, Ulbert I, Monyer H, Szabó G, Erdélyi F, Freund TF, Gulyás AI.

J Neurosci. 2013 Jul 10;33(28):11677-91. doi: 10.1523/JNEUROSCI.5729-12.2013.


Drivers of the primate thalamus.

Rovó Z, Ulbert I, Acsády L.

J Neurosci. 2012 Dec 5;32(49):17894-908. doi: 10.1523/JNEUROSCI.2815-12.2012.


Localization of single-cell current sources based on extracellular potential patterns: the spike CSD method.

Somogyvári Z, Cserpán D, Ulbert I, Erdi P.

Eur J Neurosci. 2012 Nov;36(10):3299-313. doi: 10.1111/j.1460-9568.2012.08249.x. Epub 2012 Aug 31.


Astrocytes convert network excitation to tonic inhibition of neurons.

Héja L, Nyitrai G, Kékesi O, Dobolyi A, Szabó P, Fiáth R, Ulbert I, Pál-Szenthe B, Palkovits M, Kardos J.

BMC Biol. 2012 Mar 15;10:26. doi: 10.1186/1741-7007-10-26.


First-pass selectivity for semantic categories in human anteroventral temporal lobe.

Chan AM, Baker JM, Eskandar E, Schomer D, Ulbert I, Marinkovic K, Cash SS, Halgren E.

J Neurosci. 2011 Dec 7;31(49):18119-29. doi: 10.1523/JNEUROSCI.3122-11.2011.


Two-dimensional multi-channel neural probes with electronic depth control.

Torfs T, Aarts AA, Erismis MA, Aslam J, Yazicioglu RF, Seidl K, Herwik S, Ulbert I, Dombovari B, Fiath R, Kerekes BP, Puers R, Paul O, Ruther P, Van Hoof C, Neves HP.

IEEE Trans Biomed Circuits Syst. 2011 Oct;5(5):403-12. doi: 10.1109/TBCAS.2011.2162840.


Complex propagation patterns characterize human cortical activity during slow-wave sleep.

Hangya B, Tihanyi BT, Entz L, Fabó D, Erőss L, Wittner L, Jakus R, Varga V, Freund TF, Ulbert I.

J Neurosci. 2011 Jun 15;31(24):8770-9. doi: 10.1523/JNEUROSCI.1498-11.2011.


Intrinsic functional architecture predicts electrically evoked responses in the human brain.

Keller CJ, Bickel S, Entz L, Ulbert I, Milham MP, Kelly C, Mehta AD.

Proc Natl Acad Sci U S A. 2011 Jun 21;108(25):10308-13. doi: 10.1073/pnas.1019750108. Epub 2011 Jun 2. Erratum in: Proc Natl Acad Sci U S A. 2011 Oct 11;108(41):17234.


Phase advancement and nucleus-specific timing of thalamocortical activity during slow cortical oscillation.

Slézia A, Hangya B, Ulbert I, Acsády L.

J Neurosci. 2011 Jan 12;31(2):607-17. doi: 10.1523/JNEUROSCI.3375-10.2011.


Parvalbumin-containing fast-spiking basket cells generate the field potential oscillations induced by cholinergic receptor activation in the hippocampus.

Gulyás AI, Szabó GG, Ulbert I, Holderith N, Monyer H, Erdélyi F, Szabó G, Freund TF, Hájos N.

J Neurosci. 2010 Nov 10;30(45):15134-45. doi: 10.1523/JNEUROSCI.4104-10.2010.


Phase entrainment of human delta oscillations can mediate the effects of expectation on reaction speed.

Stefanics G, Hangya B, Hernádi I, Winkler I, Lakatos P, Ulbert I.

J Neurosci. 2010 Oct 13;30(41):13578-85. doi: 10.1523/JNEUROSCI.0703-10.2010. Erratum in: J Neurosci. 2011 Jan 26;31(4):1559.


Laminar analysis of slow wave activity in humans.

Csercsa R, Dombovári B, Fabó D, Wittner L, Eross L, Entz L, Sólyom A, Rásonyi G, Szucs A, Kelemen A, Jakus R, Juhos V, Grand L, Magony A, Halász P, Freund TF, Maglóczky Z, Cash SS, Papp L, Karmos G, Halgren E, Ulbert I.

Brain. 2010 Sep;133(9):2814-29. doi: 10.1093/brain/awq169. Epub 2010 Jul 23.


Heterogeneous neuronal firing patterns during interictal epileptiform discharges in the human cortex.

Keller CJ, Truccolo W, Gale JT, Eskandar E, Thesen T, Carlson C, Devinsky O, Kuzniecky R, Doyle WK, Madsen JR, Schomer DL, Mehta AD, Brown EN, Hochberg LR, Ulbert I, Halgren E, Cash SS.

Brain. 2010 Jun;133(Pt 6):1668-81. doi: 10.1093/brain/awq112.


Control and data acquisition software for high-density CMOS-based microprobe arrays implementing electronic depth control.

Seidl K, Torfs T, De Mazière PA, Van Dijck G, Csercsa R, Dombovari B, Nurcahyo Y, Ramirez H, Van Hulle MM, Orban GA, Paul O, Ulbert I, Neves H, Ruther P.

Biomed Tech (Berl). 2010 Jun;55(3):183-91. doi: 10.1515/BMT.2010.014.


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