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Professional career

Ellen Joos obtained a B.Sc. degree in Biological Sciences and Ecology and Environmental Protection in a double-degree program at the University of Rostock, Germany and the Babeș-Bolyai University Cluj-Napoca, Romania. She then obtained a M. Sc. degree in Biology at the Albert-Ludwigs-University of Freiburg. In 2021, she obtained the title Dr. rer. nat. in neuroscience (summa cum laude) in a cotutelle procedure at the Albert-Ludwigs-University of Freiburg and the University of Strasbourg, France.

From 2021 to 2023 post-doc in Strasbourg within the EU Horizon 2020 project “VIRTUALTIMES – Exploring and modifying the sense of time in virtual environments”. Since 2024 she is a researcher at the IGPP, among others working on the DFG project “Neural correlates of visual ambiguity and meta-perceptual confidence rating”.

Fields of work / research interests

Fields of work: Head of the experimental laboratory; I investigate topics of cognitive neuroscience, visual perception and perceptual and mental instability using imaging techniques such as electroencephalography (EEG), behavioral data, as well as various other stimulation and measurement methods (TMS, eye-tracking, virtual reality, fMRI, etc.).

Current research interests: Understanding fundamental processes underlying a coherent perception and deviations from it / integration of temporal aspects in perception (predictive processes) / schizophrenia / extraordinary experiences / visual imagination

Publications

Journal articles

Wilson, M., Joos, E., Giersch, A., Bonnefond, A., Tebartz Van Elst, L., Hecker, L., & Kornmeier, J. (2024). Do smaller P300 amplitudes in schizophrenia result from larger variability in temporal processing? Schizophrenia, 10(1), 104. https://doi.org/10.1038/s41537-024-00519-4

Mozhdehfarahbakhsh, A., Hecker, L., Joos, E., & Kornmeier, J. (2024). Visual imagination can influence visual perception – towards an experimental paradigm to measure imagination. Scientific Reports, 14(1), 24486. https://doi.org/10.1038/s41598-024-74693-x

Foerster*, F. R., Joos*, E., Martin, B., Coull, J. T., & Giersch, A. (2024). Self and time in individuals with schizophrenia: A motor component? Schizophrenia Research, 272, 12–19. https://doi.org/10.1016/j.schres.2024.08.008 (*shared first authorship)

Wilson, M., Hecker, L., Joos, E., Aertsen, A., Tebartz Van Elst, L., & Kornmeier, J. (2023). Spontaneous Necker-cube reversals may not be that spontaneous. Frontiers in Human Neuroscience, 17, 1179081. https://doi.org/10.3389/fnhum.2023.1179081

Arrouet*, A., Polgári*, P., Giersch, A., & Joos, E. (2022). Temporal Order Judgments in Schizophrenia and Bipolar Disorders – Explicit and Implicit Measures. Timing & Time Perception, 11(1–4), 362–385. https://doi.org/10.1163/22134468-bja10071 (*shared first authorship)

Kornmeier, J., Sosic-Vasic, Z., & Joos, E. (2022). Spacing learning units affects both learning and forgetting. Trends in Neuroscience and Education, 26, 100173. https://doi.org/10.1016/j.tine.2022.100173

Kornmeier, J., Bhatia, K., & Joos, E. (2021). Top-down resolution of visual ambiguity – knowledge from the future or footprints from the past? PLOS ONE, 16(10), e0258667. https://doi.org/10.1371/journal.pone.0258667

Joos, E., Giersch, A., Bhatia, K., Heinrich, S. P., Tebartz van Elst, L., & Kornmeier, J. (2020). Using the perceptual past to predict the perceptual future influences the perceived present – A novel ERP paradigm. PLOS ONE, 15(9), e0237663. https://doi.org/10.1371/journal.pone.0237663

Joos, E., Giersch, A., Hecker, L., Schipp, J., Heinrich, S. P., Tebartz van Elst, L., & Kornmeier, J. (2020). Large EEG amplitude effects are highly similar across Necker cube, smiley, and abstract stimuli. PLoS ONE, 15(5), e0232928. https://doi.org/10.1371/journal.pone.0232928

Conference contributions

Joos, E., Koning, E., Scherer, C., Wilson, M., Tebartz van Elst, L., Giersch, A., & Kornmeier, J. (2024). Uncertainty processing in Schizophrenia—Electrophysiological evidence of alterations in intensity and temporal precision [Poster]. European Conference on Visual Perception (ECVP), Aberdeen, Scotland.

Joos, E., Fach, W., Wilson, M., Tebartz van Elst, L., & Kornmeier, J. (2024). Schizophrenia and exceptional experiences—Phenomenological and electrophysiological measures [Poster]. Psychologie und Gehirn (PuG), Hamburg, Germany.

Joos, E., Scherer, C., Foucher, J., Isope, P., & Giersch, A. (2023). Predictive processes are altered by TMS of the cerebellum [Poster]. 3rd Timing Research Forum (TRF3), Lisbon, Portugal.

Joos, E., Arrouet, A., Polgári, P., & Giersch, A. (2023). Altered temporal order judgments in Schizophrenia but not in Bipolar Disorders [Talk]. 10th jounées scientifiques de la fédération de médecine translationelle de Strasbourg (FMTS), Strasbourg, France.

Arrouet, A., Polgári, P., Giersch, A., & Joos, E. (2023). Explicit and implicit measures of temporal order judgments in Schizophrenia and Bipolar Disorders [Talk]. The Science of Consciousness Conference (TSC), Taormina, Italy.

Joos, E. (2023). [Attending]. Neurex Symposium „Neuromodulation in Psychiatry“, Strasbourg, France.

Joos, E., Scherer, C., Weill-Rossi, R., Isope, P., Foucher, J., & Giersch, A. (2022). Are predictive processes altered by TMS of the cerebellum? [Poster]. FENS, Paris, France.

Joos, E., Koning, E., Tebartz van Elst, L., Kornmeier, J., & Giersch, A. (2022). Perceptual (un)certainty: Behavioral and EEG differences between patients with schizophrenia and neurotypicals [Poster]. Congress of the Schizophrenia International Research Society (SIRS), Florence, Italy.

Joos, E., Scherer, C., Marrer, C., Isope, P., Foucher, J., & Giersch, A. (2022). Does TMS of Crus I/II alter predictive processes? [Poster]. 5th Cerebllum Days, Bordeaux, France.

Joos, E., Koning, E., Tebartz van Elst, L., Kornmeier, J., & Giersch, A. (2021). Perceptual (un)certainty: Behavioral and EEG differences between patients with schizophrenia and neurotypical controls [Poster]. European Conference on Schizophrenia Research (ECSR), online.

Joos, E. (2021). [Attending]. 2nd International Workshop on Non-Invasive Brain Stimulation, University of Minnesota/online.

Joos, E., Giersch, A., Hecker, L., Schipp, J., Tebartz van Elst, L., & Kornmeier, J. (2021). Large EEG amplitude effects are highly similar across Necker cube, smiley, and abstract stimuli [Poster]. NeuroFrance 2021 (Société des Neurosciences), online.

Joos, E. (2021). [Organization team]. Neurex Winter School „How can we bring together phenomenology, experimental psychology and psychopathology: Virtual Reality as a solution?“, Strasbourg/online.

Joos, E. (2021). [Attending]. 4th Cerebellum Days – Insight into the Cerebellum, Online – hosted by the French Cerebellum Club.

Joos, E., Giersch, A., Hecker, L., Schipp, J., Tebartz van Elst, L., & Kornmeier, J. (2019). How Meta-perception helps to process Ambiguity in Geometry and Emotion [Talk]. European Conference on Visual Perception (ECVP), Leuven, Belgium.

Joos, E., Giersch, A., Hecker, L., Schipp, J., Tebartz van Elst, L., & Kornmeier, J. (2019). How Meta-perception helps to process Ambiguity in Geometry and Emotion [Poster]. Psychologie und Gehirn (PuG), Dresden, Germany.

Joos, E., Giersch, A., Hecker, L., Schipp, J., Tebartz van Elst, L., & Kornmeier, J. (2019). How ambiguity helps to understand meta-perception – Similar EEG correlates of geometry and emotion processing [Poster]. Vision Sciences Society (VSS), St. Pete Beach, Florida, USA.

Joos, E., Giersch, A., Tebartz van Elst, L., & Kornmeier, J. (2019). How ambiguity helps to understand meta-perception [Blitztalk]. Annual meeting of Neuropôle Strasbourg, Strasbourg, France.

Joos, E., Giersch, A., Schaller, U., Rauh, R., Helzle, V., Tebartz van Elst, L., & Kornmeier, J. (2018). How much evidence do we need for a smile? ERP correlates of emotional ambiguity [Poster]. European Conference on Visual Perception (ECVP), Trieste, Italy.

Joos, E., & Kornmeier, J. (2018). When Predictive Coding impedes Perception [Talk]. Tagung experimentell arbeitender Psychologen (TeaP), Marburg, Germany.

Joos, E., Giersch, A., & Kornmeier, J. (2018). From motion to emotion – Neural correlates of a generalized reliability estimation of perception [Poster]. Doctoral School Days, Strasbourg, France.

Joos, E. (2017). [Organization team]. Timing Research Forum (TRF), Strasbourg, France.

Joos, E., & Kornmeier, J. (2017). When Predictive Coding impedes Perception [Talk]. European Conference on Visual Perception (ECVP), Berlin, Germany. https://journals.sagepub.com/pb-assets/cmscontent/PEC/ECVP2017_abstracts_1.2.pdf

Joos, E. (2016). EEG Correlates of Memory Effects during Perceptual Disambiguation [Poster]. European Conference on Visual Perception (ECVP), Barcelona, Spain. https://doi.org/10.1177/0301006616671273

Prices

  • 04.2022 Dissertation prize of the Société de Biologie de Strasbourg sponsored by ITI Neurostra
  • 01.2022 Franco-German Prize of Grand’Est Promotion de Charles de Villers for the best doctoral thesis in the category Science et Techniques-Engineering-Computer Science
  • 06.2019 DGPA e.V. Poster Prize 2019 at the 45th Conference Psychology and Brain
  • 02.2019 Blitztalk prize at the annual conference of the Neuropôle de Strasbourg
  • 03.2018 Third place in the poster competition of the Doctoral School Days in Strasbourg

Teaching

Teaching activities: Regular co-supervision of PhD, Master and Bachelor theses, as well as supervision of internships.

Past teaching activities: Co-organization/supervision of the EEG course offered in the Master of Neuroscience module “Cognitive Neuroscience” at the Albert-Ludwigs-University Freiburg between 2017 and 2020.

Financial support

  • 10.2020 – 12.2020 Scholarship from the Institute for Frontier Areas of Psychology and mental health (IGPP e.V.) in Freiburg to complete the dissertation
  • 05.2018 – 02.2021 Funding of the additional costs of a binational doctoral thesis by the Franco-German University (DFH)
  • 05.2017 – 04.2020 Funding of the doctoral thesis through a scholarship from Neurex (IdEx Strasbourg, France)
  • 08.2016 Grant for the ECVP 2016 conference visit by the Friends of the University of Freiburg e.V.
  • 01.2011 – 08.2011 Study scholarship from the German Academic Exchange Service (DAAD)