TY - JOUR AU - Meszéna, Domokos AU - Barlay, Anna AU - Boldog, Péter Tamás AU - Furuglyás, Kristóf AU - Cserpán, Dorottya AU - Wittner, Lucia AU - Ulbert, István AU - Somogyvári, Zoltán TI - Seeing beyond the spikes: reconstructing the complete spatiotemporal membrane potential distribution from paired intra- and extracellular recordings JF - JOURNAL OF PHYSIOLOGY-LONDON J2 - J PHYSIOL-LONDON VL - 601 PY - 2023 IS - 15 SP - 3351 EP - 3376 PG - 26 SN - 0022-3751 DO - 10.1113/JP283550 UR - https://m2.mtmt.hu/api/publication/33651637 ID - 33651637 LA - English DB - MTMT ER - TY - JOUR AU - Wahdow, Moutz AU - Alnaanah, Mahmoud AU - Fadel, Ward AU - Adolf, András AU - Köllőd, Csaba Márton AU - Ulbert, István TI - Multi frequency band fusion method for EEG signal classification JF - SIGNAL IMAGE AND VIDEO PROCESSING J2 - SIGNAL IMAGE VIDEO PROCES VL - 17 PY - 2023 IS - 5 SP - 1883 EP - 1887 PG - 5 SN - 1863-1703 DO - 10.1007/s11760-022-02399-6 UR - https://m2.mtmt.hu/api/publication/33271235 ID - 33271235 AB - This paper proposes a novel convolutional neural network (CNN) fusion method for electroencephalography (EEG) motor imagery (MI) signal classification. The method is named MFBF, which stands for multifrequency band fusion. The MFBF method relies on filtering the input signal with different frequency bands and feeding each band signal to a duplicate of a CNN model; then, all duplicates are concatenated to form a fusion model. This paper also introduces the second release of Coleeg software, which is used for evaluation. The MFBF method has the advantage of the flexibility of choosing any model and any number of frequency bands. In the experimental evaluation, the CNN1D model and three frequency bands were used to form the CNN1D_MFBF model, and it was evaluated against the EEGNet_fusion model on three different datasets, which are: Physionet, BCI competition IV-2a, and a dataset from the Hungarian Academy of Sciences Research Centre for Natural Sciences (MTA-TTK). The CNN1D_MFBF model had comparable or better accuracy results with less than one-fifth of the training time, which is a significant advantage for the proposed method. LA - English DB - MTMT ER - TY - CHAP AU - Köllőd, Csaba Márton AU - Eftimiu, Nikomidisz Jorgosz AU - Márton, Gergely AU - Ulbert, István ED - Szakál, Anikó TI - Classification of Semi-Automated Labeled MindRove Armband Recorded EMG Data T2 - IEEE Joint 22nd International Symposium on COMPUTATIONAL INTELLIGENCE and INFORMATICS and 8th International Conference on Recent Achievements in Mechatronics, Automation, Computer Science and Robotics (CINTI-MACRo 2022) PB - IEEE Hungary Section CY - Budapest SN - 9798350398823 PY - 2022 SP - 000381 EP - 000386 PG - 6 DO - 10.1109/CINTI-MACRo57952.2022.10029540 UR - https://m2.mtmt.hu/api/publication/34030729 ID - 34030729 LA - English DB - MTMT ER - TY - GEN AU - Daniel, Fabo AU - Virag, Bokodi AU - Emilia, Tóth AU - Johanna-Petra, Szabó AU - Pariya, Salami AU - Corey, J. Keller AU - Boglárka, Hajnal AU - Thomas, Thesen AU - Orrin, Devinsky AU - Werner, Doyle AU - Ashesh, Mehta AU - Joseph, Madsen AU - Emad, Eskandar AU - Erőss, Loránd AU - Ulbert, István AU - Eric, Halgren AU - Sydney, S. Cash TI - The role of superficial and deep layers in the generation of high frequency oscillations in the human epileptic cortex PY - 2022 DO - 10.21203/rs.3.rs-1584537/v1 UR - https://m2.mtmt.hu/api/publication/33655408 ID - 33655408 LA - English DB - MTMT ER - TY - CHAP AU - Nikomidisz, Eftimiu AU - Köllőd, Csaba Márton AU - Ulbert, István AU - Márton, Gergely ED - Szakál, Anikó TI - A surface electromyography dataset for hand gesture recognition T2 - IEEE 20th Jubilee International Symposium on Intelligent Systems and Informatics (SISY 2022) PB - IEEE CY - Szabadka SN - 9781665489881 PY - 2022 SP - 115 EP - 120 PG - 6 DO - 10.1109/SISY56759.2022.10036305 UR - https://m2.mtmt.hu/api/publication/33631899 ID - 33631899 LA - English DB - MTMT ER - TY - CHAP AU - Fiáth, Richárd ED - Holl, András ED - Maróthy, Szilvia TI - Idegtudományi kutatási adatok archiválása a CONCORDA magyar adatrepozitóriumba T2 - A kutatásiadat-kezelés gyakorlata: Bevett eljárások és kísérleti projektek PB - Magyar Tudományos Akadémia Könyvtár és Információs Központ CY - Budapest SN - 9789637451850 T3 - A Magyar Tudományos Akadémia Könyvtárának közleményei. Új sorozat, ISSN 0133-8862 ; 47. PY - 2022 SP - 15 EP - 38 PG - 24 UR - https://m2.mtmt.hu/api/publication/33370939 ID - 33370939 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Judák, Linda AU - Chiovini, Balázs AU - Juhász, Gábor AU - Pálfi, Dénes AU - Mezriczky, Zsolt AU - Szadai, Zoltán AU - Katona, Gergely AU - Szmola, Benedek AU - Ócsai, Katalin AU - Martinecz, Bernadett AU - Mihály, Anna AU - Dénes, Ádám AU - Kerekes, Bálint AU - Szepesi, Áron AU - Szalay, Gergely AU - Ulbert, István AU - Mucsi, Zoltán AU - Roska, Botond AU - Rózsa J., Balázs TI - Sharp-wave ripple doublets induce complex dendritic spikes in parvalbumin interneurons in vivo JF - NATURE COMMUNICATIONS J2 - NAT COMMUN VL - 13 PY - 2022 IS - 1 PG - 15 SN - 2041-1723 DO - 10.1038/s41467-022-34520-1 UR - https://m2.mtmt.hu/api/publication/33252960 ID - 33252960 N1 - Laboratory of 3D Functional Network and Dendritic Imaging, Institute of Experimental Medicine, Budapest, Hungary Two-Photon Measurement Technology Group, The Faculty of Information Technology, Pázmány Péter University, Budapest, Hungary Momentum Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary Faculty of Information Technology and Bionics, Pázmány Péter University, Budapest, Hungary Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary BrainVisionCenter, Budapest, Hungary Institute of Molecular and Clinical Ophthalmology Basel, Basel, Switzerland Neural Circuit Laboratories, Friedrich Miescher Institute, Basel, Switzerland Department of Ophthalmology, University of Basel, Basel, Switzerland Cited By :1 Export Date: 27 April 2023 Correspondence Address: Rózsa, B.; Laboratory of 3D Functional Network and Dendritic Imaging, Hungary; email: rozsabal@koki.hu Chemicals/CAS: alpha amino 3 hydroxy 5 methyl 4 isoxazolepropionic acid, 77521-29-0; calcium, 7440-70-2, 14092-94-5; n methyl dextro aspartic acid, 6384-92-5; parvalbumin, 56094-12-3, 83667-75-8; Parvalbumins Funding details: European Research Council, ERC, 2020-1.1.5-GYORSÍTÓSÁV-2021-00004, 2020-2.1.1-ED-2022-00208, 682426, 871277-AMPLITUDE, GINOP_PLUSZ-2.1.1-21-2022-00143, PM/20453-15/2020, VKE-2018-00032, VNT 2020-1-0574 Funding details: Magyar Tudományos Akadémia, MTA, BO/01014/16/8 Funding text 1: Balázs R., G.K., L.J., B.C., G.J., D.P., Zoltán Sz., Zsolt M., and K.Ó. are supported by ERC 682426, VISONby3DSTIM; KFI-2018-00097; VKE-2018-00032; 871277-AMPLITUDE; 2017-1.2.1-NKP-2017-00002, TKP2021-EGA-42; 712821-NEURAM; VNT 2020-1-0574; 2020-1.1.5-GYORSÍTÓSÁV-2021-00004; GINOP_PLUSZ-2.1.1-21-2022-00143, PM/20453-15/2020; BrainVisionCenter 2020-2.1.1-ED-2021-00190, 2020-2.1.1-ED-2022-00208. B.C. was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences (BO/01014/16/8). The Bpod and Pulse Pal devices were the gifts of Adam Kepecs. We thank Dr. Daniel Hillier for his work and helpful comments on the manuscript at different phases of the writing process. AB - Neuronal plasticity has been shown to be causally linked to coincidence detection through dendritic spikes (dSpikes). We demonstrate the existence of SPW-R-associated, branch-specific, local dSpikes and their computational role in basal dendrites of hippocampal PV+ interneurons in awake animals. To measure the entire dendritic arbor of long thin dendrites during SPW-Rs, we used fast 3D acousto-optical imaging through an eccentric deep-brain adapter and ipsilateral local field potential recording. The regenerative calcium spike started at variable, NMDA-AMPA-dependent, hot spots and propagated in both direction with a high amplitude beyond a critical distance threshold (~150 µm) involving voltage-gated calcium channels. A supralinear dendritic summation emerged during SPW-R doublets when two successive SPW-R events coincide within a short temporal window (~150 ms), e.g., during more complex association tasks, and generated large dSpikes with an about 2.5-3-fold amplitude increase which propagated down to the soma. Our results suggest that these doublet-associated dSpikes can work as a dendritic-level temporal and spatial coincidence detector during SPW-R-related network computation in awake mice. LA - English DB - MTMT ER - TY - JOUR AU - Ujma, Przemyslaw Péter AU - Dresler, Martin AU - Simor, Péter Dániel AU - Fabó, Dániel AU - Ulbert, István AU - Erőss, Loránd AU - Bódizs, Róbert TI - The sleep EEG envelope is a novel, neuronal firing-based human biomarker JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 12 PY - 2022 IS - 1 PG - 16 SN - 2045-2322 DO - 10.1038/s41598-022-22255-4 UR - https://m2.mtmt.hu/api/publication/33226625 ID - 33226625 N1 - Export Date: 16 May 2023 Correspondence Address: Ujma, P.P.; Institute of Behavioural Sciences, Hungary; email: ujma.peter@med.semmelweis-univ.hu Chemicals/CAS: Biomarkers Funding details: European Cooperation in Science and Technology, COST, CA18106 Funding details: Semmelweis Egyetem, TKP2021-EGA-25 Funding details: Nederlandse Organisatie voor Wetenschappelijk Onderzoek, NWO Funding details: Emberi Eroforrások Minisztériuma, EMMI Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFIH, 2017-1.2.1-NKP-2017-00002, K_128117, NKFIH-1157-8/2019-DT, NKFI_FK_128100 Funding text 1: This article is based upon work supported by the National Research, Development and Innovation Office of Hungary (Grants NKFI_FK_128100, K_128117, NKFIH-1157-8/2019-DT and 2017-1.2.1-NKP-2017-00002), the Higher Education Institutional Excellence Program of the Ministry of Human Capacities in Hungary within the framework of the Neurology thematic program of the Semmelweis University (TKP2021-EGA-25), a Vidi grant from the Netherlands Organisation for Scientific Research (NWO), and COST Action CA18106 supported by COST (European Cooperation in Science and Technology). AB - Sleep EEG reflects voltage differences relative to a reference, while its spectrum reflects its composition of various frequencies. In contrast, the envelope of the sleep EEG reflects the instantaneous amplitude of oscillations, while its spectrum reflects the rhythmicity of the occurrence of these oscillations. The sleep EEG spectrum is known to relate to demographic, psychological and clinical characteristics, but the envelope spectrum has been rarely studied. In study 1, we demonstrate in human invasive data from cortex-penetrating microelectrodes and subdural grids that the sleep EEG envelope spectrum reflects neuronal firing. In study 2, we demonstrate that the scalp EEG envelope spectrum is stable within individuals. A multivariate learning algorithm could predict age (r = 0.6) and sex (r = 0.5) from the EEG envelope spectrum. With age, oscillations shifted from a 4–5 s rhythm to faster rhythms. Our results demonstrate that the sleep envelope spectrum is a promising biomarker of demographic and disease-related phenotypes. LA - English DB - MTMT ER - TY - JOUR AU - Fiáth, Richárd TI - Modern technológiák az idegtudományban - Gyorsítsuk a sejtválogatást JF - ÉLET ÉS TUDOMÁNY J2 - ÉLET ÉS TUDOMÁNY VL - LXXVII PY - 2022 IS - 37 SP - 1200 EP - 1201 PG - 2 SN - 0013-6077 UR - https://m2.mtmt.hu/api/publication/33106549 ID - 33106549 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Hajnal, Boglárka Zsófia AU - Entz, László AU - Tóth, Emília AU - Wittner, Lucia AU - Ulbert, István AU - Erőss, Loránd AU - Fabó, Dániel TI - A humán agykéreg elektromos ingerlésével kiváltott válaszok alatti lokális hálózati és egysejt-szintű aktivitásváltozásainak vizsgálata JF - IDEGGYÓGYÁSZATI SZEMLE PROCEEDINGS / CLINICAL NEUROSCIENCE PROCEEDINGS J2 - IDEGGYÓGY SZEMLE PROC VL - 7 PY - 2022 IS - 1 SP - 18 SN - 2498-6240 UR - https://m2.mtmt.hu/api/publication/33075628 ID - 33075628 LA - Hungarian DB - MTMT ER -