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Friehs MA, Stegemann MJ, Merz S, Geißler C, Meyerhoff HS, Frings C. The influence of tDCS on perceived bouncing/streaming. Exp Brain Res 2023; 241:59-66. [PMID: 36357591 PMCID: PMC9870834 DOI: 10.1007/s00221-022-06505-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 11/03/2022] [Indexed: 11/12/2022]
Abstract
Processing ambiguous situations is a constant challenge in everyday life and sensory input from different modalities needs to be integrated to form a coherent mental representation on the environment. The bouncing/streaming illusion can be studied to provide insights into the ambiguous perception and processing of multi-modal environments. In short, the likelihood of reporting bouncing rather than streaming impressions increases when a sound coincides with the moment of overlap between two moving disks. Neuroimaging studies revealed that the right posterior parietal cortex is crucial in cross-modal integration and is active during the bouncing/streaming illusion. Consequently, in the present study, we used transcranial direct current stimulation to stimulate this brain area. In the active stimulation conditions, a 9 cm2 electrode was positioned over the P4-EEG position and the 35 cm2 reference positioned over the left upper arm. The stimulation lasted 15 min. Each participant did the bouncing/streaming task three times: before, during and after anodal or sham stimulation. In a sample of N = 60 healthy, young adults, we found no influence of anodal tDCS. Bayesian analysis showed strong evidence against tDCS effects. There are two possible explanations for the finding that anodal tDCS over perceptual areas did not modulate multimodal integration. First, upregulation of multimodal integration is not possible using tDCS over the PPC as the integration process already functions at maximum capacity. Second, prefrontal decision-making areas may have overruled any modulated input from the PPC as it may not have matched their decision-making criterion and compensated for the modulation.
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Affiliation(s)
- Maximilian A. Friehs
- Lise-Meitner Research Group Cognition and Plasticity, Max-Planck-Institute for Human Cognitive and Brain Science, Leipzig, Germany ,School of Psychology, University College Dublin, Dublin, Ireland
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Ge I, Geißler C, Prömpeler HJ, Juhasz-Böss I, Wiehle P. Intrachoriale und systemische Methotrexat (MTX)-Applikation bei Zervix- und Sectionarbengravidität als konservativer, fertilitätserhaltender Behandlungsansatz. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1718072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- I. Ge
- Universitätsfrauenklinik Freiburg
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Geißler C, Ge I, Hess M, Metzger P, Bronsert P, Lassmann S, Börries M, Juhasz-Böss I, Illert AL, Bossart M. Personalisierte Therapie des therapieresistenten Ovarialkarzinoms einer jungen Patientin. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1718269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- C Geißler
- Uniklinik Freiburg, Gynäkologie und Geburtshilfe
| | - I Ge
- Uniklinik Freiburg, Gynäkologie und Geburtshilfe
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- Uniklinik Freiburg, Gynäkologie und Geburtshilfe
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Natarelli L, Geißler C, Csaba G, Wei Y, Zhu M, di Francesco A, Hartmann P, Zimmer R, Schober A. P25 MIR-103 PROMOTES ENDOTHELIAL MALADAPTATION AND ATHEROSCLEROSIS BY TARGETING LNCWDR59. Cardiovasc Res 2018. [DOI: 10.1093/cvr/cvy216.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- L Natarelli
- Institut für Prophylaxe und Epidemiologie der KreislaufkrankheitenExperimental Vascular Medicine (IPEK), Institute for Cardiovascular Prevention, Ludwig-Maximilians University Munich, Munich, Pettenkoferstrasse 9; Munich, Germany
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- Institute for Informatics, Ludwig-Maximilians University Munich, Oettingenstraße 67; Munich, Germany
| | - Y Wei
- Institut für Prophylaxe und Epidemiologie der KreislaufkrankheitenExperimental Vascular Medicine (IPEK), Institute for Cardiovascular Prevention, Ludwig-Maximilians University Munich, Munich, Pettenkoferstrasse 9; Munich, Germany
| | - M Zhu
- Institut für Prophylaxe und Epidemiologie der KreislaufkrankheitenExperimental Vascular Medicine (IPEK), Institute for Cardiovascular Prevention, Ludwig-Maximilians University Munich, Munich, Pettenkoferstrasse 9; Munich, Germany
| | - A di Francesco
- Department of Cardiac, Thoracic and Vascular Sciences, University of Padova, Via Giustiniani 2; Padova, Italy
| | - P Hartmann
- Institut für Prophylaxe und Epidemiologie der KreislaufkrankheitenExperimental Vascular Medicine (IPEK), Institute for Cardiovascular Prevention, Ludwig-Maximilians University Munich, Munich, Pettenkoferstrasse 9; Munich, Germany
| | - R Zimmer
- Institute for Informatics, Ludwig-Maximilians University Munich, Oettingenstraße 67; Munich, Germany
| | - A Schober
- Institut für Prophylaxe und Epidemiologie der KreislaufkrankheitenExperimental Vascular Medicine (IPEK), Institute for Cardiovascular Prevention, Ludwig-Maximilians University Munich, Munich, Pettenkoferstrasse 9; Munich, Germany
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Geißler C, Krause C, Kähler M, Cascorbi I, Kirchner H. Longitudinal analysis of the development of hepatic insulin resistance in diet-induced obese mice. DIABETOL STOFFWECHS 2018. [DOI: 10.1055/s-0038-1641822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- C Geißler
- Medical Department I, University of Lübeck, Lübeck, Germany
| | - C Krause
- Medical Department I, University of Lübeck, Lübeck, Germany
| | - M Kähler
- Institute of Experimental and Clinical Pharmacology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - I Cascorbi
- Institute of Experimental and Clinical Pharmacology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - H Kirchner
- Medical Department I, University of Lübeck, Lübeck, Germany
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Krause C, Sievert H, Grohs M, Geißler C, El Gammal AT, Wolter S, Lill CM, Krämer UM, Kasten M, Klein C, Brabant G, Mann O, Lehnert H, Kirchner H. Critical evaluation of DNA methylation markers for type-2-diabetes risk prediction. DIABETOL STOFFWECHS 2018. [DOI: 10.1055/s-0038-1641819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- C Krause
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - H Sievert
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - M Grohs
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - C Geißler
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - AT El Gammal
- University Medical Center Hamburg-Eppendorf, Department of General, Visceral and Thoracic Surgery, Hamburg, Germany
| | - S Wolter
- University Medical Center Hamburg-Eppendorf, Department of General, Visceral and Thoracic Surgery, Hamburg, Germany
| | - CM Lill
- University of Lübeck, Institute of Neurogenetics, Lübeck, Germany
| | - UM Krämer
- University of Lübeck, Department of Neurology, Lübeck, Germany
- University of Lübeck, Institute of Psychology II, Lübeck, Germany
| | - M Kasten
- University of Lübeck, Institute of Neurogenetics, Lübeck, Germany
- University of Lübeck, Dept. of Psychiatry and Psychotherapy, Lübeck, Germany
| | - C Klein
- University of Lübeck, Institute of Neurogenetics, Lübeck, Germany
| | - G Brabant
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - O Mann
- University Medical Center Hamburg-Eppendorf, Department of General, Visceral and Thoracic Surgery, Hamburg, Germany
| | - H Lehnert
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - H Kirchner
- University of Lübeck, Medical Department I, Lübeck, Germany
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Krause C, Tackenberg H, Geißler C, El Gammal AT, Wolter S, Mann O, Lehnert H, Kirchner H. Altered hepatic DNA methylation and gene expression of metabolic genes in non-diabetic obese and type-2-diabetic obese subjects. DIABETOL STOFFWECHS 2017. [DOI: 10.1055/s-0037-1601581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- C Krause
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - H Tackenberg
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - C Geißler
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - AT El Gammal
- University Medical Center Hamburg-Eppendorf, Department of General, Visceral and Thoracic Surgery, Hamburg, Germany
| | - S Wolter
- University Medical Center Hamburg-Eppendorf, Department of General, Visceral and Thoracic Surgery, Hamburg, Germany
| | - O Mann
- University Medical Center Hamburg-Eppendorf, Department of General, Visceral and Thoracic Surgery, Hamburg, Germany
| | - H Lehnert
- University of Lübeck, Medical Department I, Lübeck, Germany
| | - H Kirchner
- University of Lübeck, Medical Department I, Lübeck, Germany
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Ribitsch I, Burk J, Delling U, Geißler C, Gittel C, Jülke H, Brehm W. Basic science and clinical application of stem cells in veterinary medicine. Adv Biochem Eng Biotechnol 2014; 123:219-63. [PMID: 20309674 DOI: 10.1007/10_2010_66] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Stem cells play an important role in veterinary medicine in different ways. Currently several stem cell therapies for animal patients are being developed and some, like the treatment of equine tendinopathies with mesenchymal stem cells (MSCs), have already successfully entered the market. Moreover, animal models are widely used to study the properties and potential of stem cells for possible future applications in human medicine. Therefore, in the young and emerging field of stem cell research, human and veterinary medicine are intrinsically tied to one another. Many of the pioneering innovations in the field of stem cell research are achieved by cooperating teams of human and veterinary medical scientists.Embryonic stem (ES) cell research, for instance, is mainly performed in animals. Key feature of ES cells is their potential to contribute to any tissue type of the body (Reed and Johnson, J Cell Physiol 215:329-336, 2008). ES cells are capable of self-renewal and thus have the inherent potential for exceptionally prolonged culture (up to 1-2 years). So far, ES cells have been recovered and maintained from non-human primate, mouse (Fortier, Vet Surg 34:415-423, 2005) and horse blastocysts (Guest and Allen, Stem Cells Dev 16:789-796, 2007). In addition, bovine ES cells have been grown in primary culture and there are several reports of ES cells derived from mink, rat, rabbit, chicken and pigs (Fortier, Vet Surg 34:415-423, 2005). However, clinical applications of ES cells are not possible yet, due to their in vivo teratogenic degeneration. The potential to form a teratoma consisting of tissues from all three germ lines even serves as a definitive in vivo test for ES cells.Stem cells obtained from any postnatal organism are defined as adult stem cells. Adult haematopoietic and MSCs, which can easily be recovered from extra embryonic or adult tissues, possess a more limited plasticity than their embryonic counterparts (Reed and Johnson, J Cell Physiol 215:329-336, 2008). It is believed that these stem cells serve as cell source to maintain tissue and organ mass during normal cell turnover in adult individuals. Therefore, the focus of attention in veterinary science is currently drawn to adult stem cells and their potential in regenerative medicine. Also experience gained from the treatment of animal patients provides valuable information for human medicine and serves as precursor to future stem cell use in human medicine.Compared to human medicine, haematopoietic stem cells only play a minor role in veterinary medicine because medical conditions requiring myeloablative chemotherapy followed by haematopoietic stem cell induced recovery of the immune system are relatively rare and usually not being treated for monetary as well as animal welfare reasons.In contrast, regenerative medicine utilising MSCs for the treatment of acute injuries as well as chronic disorders is gradually turning into clinical routine. Therefore, MSCs from either extra embryonic or adult tissues are in the focus of attention in veterinary medicine and research. Hence the purpose of this chapter is to offer an overview on basic science and clinical application of MSCs in veterinary medicine.
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Affiliation(s)
- I Ribitsch
- Translational Centre for Regenerative Medicine, Leipzig, Germany,
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Iserloh T, Ries J, Cerdà A, Echeverría M, Fister W, Geißler C, Kuhn N, León F, Peters P, Schindewolf M, Schmidt J, Scholten T, Seeger M. Comparative measurements with seven rainfall simulators on uniform bare fallow land. ACTA ACUST UNITED AC 2013. [DOI: 10.1127/0372-8854/2012/s-00085] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zeyner A, Geißler C, Dittrich A. Effects of hay intake and feeding sequence on variables in faeces and faecal water (dry matter, pH value, organic acids, ammonia, buffering capacity) of horses. J Anim Physiol Anim Nutr (Berl) 2004; 88:7-19. [DOI: 10.1111/j.1439-0396.2004.00447.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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