Wiete Fehner

Imaging Science PhD candidate at Washington University in St. Louis.

Publications

In Review

  1. Fogarty, M., Sherafati, A., Markow, Z. E., Fehner, W., Camacho, M. C., Tang, J., Huth, A. G., Anastasio, M. A., & Culver, J. P. (in review). Leveraging large-scale fMRI datasets to simulate and evaluate the potential performance of human optical neuroimaging systems. Imaging Neuroscience.

Submitted

  1. Fehner, W., Fogarty, M., Tang, J., Bajracharya, A., Markow, Z. E., Wilhelm, D., Hines, A., Trobaugh, J., Huth, A. G.*, & Culver, J. P.* (submitted). Semantic Visual Encoding and Identification of Naturalistic Movies via Very High-Density Diffuse Optical Tomography.

In Preparation

  1. Bajracharya, A.*, Fehner, W.*, Wilhelm, D., Markow, Z. E., Fogarty, M., Peelle, J. E., Hershey, T., Trobaugh, J. W., & Culver, J. P. (in preparation). Precision High-Density Diffuse Optical Tomography (pHD-DOT) for Single-Subject Functional Cortical Mapping.
  2. Hamic, W. T.*, Fehner, W.*, Fogarty, M., Agato, A. S., DeVore, H. E., Rafferty, S. M., Wilhelm, D., O’Sullivan, A. C., Svoboda, C. F., Trobaugh, J. W., Eggebrecht, A. T., Richter, E. J., & Culver, J. P. (in preparation). Mapping and Decoding of Naturalistic Activities with Full-Head Wearable DOT.
  3. Fehner, W.*, Hamic, W. T.*, Fogarty, M., Tang, J., Wilhelm, D., Rafferty, S. M., Hines, A., Trobaugh, J., Huth, A. G., & Culver, J. P. (in preparation). Model-based Semantic Encoding and Decoding with Wearable High-Density Diffuse Optical Tomography.
  4. Fehner, W., Fogarty, M., Thakur, S., Duncan, K., Foss, C., Shafiullah, A., Easley, T., Park, S., Khanal, N., Boyd, E., Culver, J. P., & O’Sullivan, J. A. (in preparation). Bridging Gaps in Mathematical Preparedness: A Student-Led Summer Course Designed for STEM Graduate Students. Abstract accepted for ASEE 2026; full paper to be submitted January 2026.

* Authors contributed equally.

Lectures and Seminars

  1. Fehner, W. (2025). Naturalistic Semantic Mapping with HD-DOT. Invited lecture, fNIRS Summer School 2025, St. Louis, USA.
  2. Fehner, W. (2025). Head Model Validation and Post-Processing. Invited hands-on session, fNIRS Summer School 2025, St. Louis, USA.
  3. Culver, J. P., Fehner, W., & Fogarty, M. (2025). From fMRI to Optical Imaging: A Paradigm Shift in Naturalistic Cortical Mapping. Symposium organizers, Organization for Human Brain Mapping (OHBM), Brisbane, Australia.

Conference Talks

  1. Fogarty, M., Sherafati, A., Markow, Z.E., Fehner, W., Camacho, M.C., Tang, J., Huth, A.G., Anastasio., M.A., Culver, J.P., “Leveraging large-scale fMRI datasets to simulate and evaluate the potential performance of human optical neuroimaging systems”, Neuroscience of the Everyday World, July 2025, Boston, MA.
  2. Z. Li, S. Chen, W. Fehner, Z. E. Markow, A. R. Bice, S. H. Gaines, and J. P. Culver, “Predicting Naturalistic Visual Representations in Mouse Cortex Via Wide-Field Calcium Imaging and Motion Energy Modeling,” in Optica Biophotonics Congress 2025, Technical Digest Series (Optica Publishing Group, 2025), paper BW1B.5.
  3. Fehner, W., Fogarty, M., Bajracharya, A., Markow, Z. E., Wilhelm, D., Tang, J., Trobaugh, J. W., Huth, A. G., & Culver, J. P. (2025). Semantic mapping of visual object categories in movies using very high-density diffuse optical tomography. Neural Imaging and Sensing 2025, 20. https://doi.org/10.1117/12.3041378
  4. Bajracharya A, Wilhelm D, Markow Z, Fogarty M, Fehner W, Peelle JE, Hershey T, Culver JP. (2024) Functional Brain Mapping of Single-Subjects Using Precision High-Density Diffuse Optical Tomography. Talk at Society for fNIRS Conference 2024, Birmingham, GB (10 September 2024).
  5. Bajracharya A, Wilhelm D, Markow Z, Fogarty M, Fehner W, Peelle JE, Hershey T, Culver JP. Developing Methods for Precision High-Density Diffuse Optical Tomography. Talk at Organization for Human Brain Mapping (OHBM), Seoul, South Korea, 2024.
  6. Fehner, W., Markow, Z., Fogarty, M., Bajracharya, A., Wilhelm, D., Huth, A. G., Culver, J. P. (2024). “Towards Semantic Visual Decoding of Naturalistic Movies with High-Density Diffuse Optical Tomography.” Invited talk for the MIR Research Symposium 2024, St. Louis, USA, May 2024.
  7. Lin, C.-H. P.*, Fehner, W.*, Inema Orukari, Lisa Kobayashi Frisk, Agato, A., Verma, M., O’Sullivan, A. J., Svoboda, C., Sumana Chetia, Eggebrecht, A. T., Turgut Durduran, Culver, J. P., & Trobaugh, J. W. (2023). “Fiber-Based Speckle Contrast Optical Tomography for Neuroimaging in Humans: Simulation of High-Density vs. Sparse Arrays and In Vivo Human Measurements.” Talk presented at the Biophotonics Congress: Optics in the Life Sciences 2023, Vancouver, Canada (27 April 2023). DOI: https://doi.org/10.1364/brain.2023.bth2b.2.
  8. Fehner, W., Fogarty, M., Anastasio, M. A., & Culver, J. P. (2023). “Evaluation of multivariate approaches to functional connectivity mapping with fNIRS.” In Proceedings of SPIE PC12365, Neural Imaging and Sensing 2023, PC123650C (17 March 2023).
  9. W. Fehner, M. Fogarty, M.A. Anastasio, J.P. Culver. (2023). “Comparison of Multivariate and Bivariate Functional Connectivity Approaches using High-Density Diffuse Optical Tomography for Human Brain Mapping.” Invited talk presented at the Imaging Science Pathway Retreat 2023, St. Louis, USA (30 March 2023).
  10. Fehner, W., & Defne Aksit. (2021). “Are Personality Characteristics of Students Related to the Study Subject? Insights from a Survey Study.” Talk presented at World CUR 2019, Oldenburg, Germany (25 May 2019).

Conference Poster Presentations

  1. W. Fehner, M. Fogarty, A. Bajracharya, Z.E. Markow, D. Wilhelm, J. Tang, A. Hines, J. Trobaugh, A. G. Huth, J. P Culver, “Decoding of Naturalistic Movie Clips with a Semantic Model using HD-DOT”, Neuroscience of the Everyday World, July 2025, Boston, USA.
  2. W.T. Hamic, W. Fehner, M. Fogarty, A.S. Agato, H.E. DeVore, S.M. Rafferty, D. Wilhelm, A.C. O’Sullivan, C.F. Svoboda, J.W. Trobaugh, A.T. Eggebrecht, E.J. Richter, J.P. Culver, “Wearable High-Density Diffuse Optical Tomography in Naturalistic Environments”, Neuroscience of the Everyday World, July 2025, Boston, USA.
  3. M. Fogarty, W. Fehner, A. Bajracharya, J. Tang, Z.E. Markow, J. Trobaugh, A.G. Huth, J.P. Culver, “Voxel-wise encoding of Naturalistic audio stimuli using very-high-density diffuse optical tomography”, Organization of Human Brain Mapping, June 2025, Brisbane, Australia.
  4. W.T. Hamic, W. Fehner, M. Fogarty, A.S. Agato, H.E. DeVore, S.M. Rafferty, D. Wilhelm, A.C. O’Sullivan, C.F. Svoboda, J.W. Trobaugh, A.T. Eggebrecht, E.J. Richter, J.P. Culver, “Whole Head Wearable High Density Diffuse Optical Tomography”, Organization of Human Brain Mapping, June 2025, Brisbane, Australia.
  5. W. Fehner, M. Fogarty, A. Bajracharya, Z.E. Markow, D. Wilhelm, J. Trobaugh, J. Tang, A. Hines, A.G. Huth, J.P. Culver, “Advancing Semantic Mapping for Naturalistic Settings with High-Density Diffuse Optical Tomography”, Organization of Human Brain Mapping, June 2025, Brisbane, Australia.
  6. Fehner, W., Fogarty, M., Bajracharya, A., Markow, Z.E., Wilhelm, W., Trobaugh, J., Huth, A. G., Culver, J. P. (2024). “Towards Semantic Encoding of Visual Content in Movies via High-Density Diffuse Optical Tomography.” Poster at Society for fNIRS Conference 2024, Birmingham, GB (10 September 2024).
  7. Fogarty, M., Fehner, W., Bajracharya, A., Tang, J., Markow, Z.E., Trobaugh, J., Huth, A. G., Culver, J. P. (2024) Voxel-wise modeling of naturalistic auditory stimuli using very-high-density diffuse optical tomography. Poster at Society for fNIRS Conference 2024, Birmingham, GB (10 September 2024).
  8. Fehner, W., Markow, Z., Fogarty, M., Bajracharya, A., Wilhelm, D., Huth, A. G., Culver, J. P. (2024). “Towards Semantic Visual Decoding of Naturalistic Movies with High-Density Diffuse Optical Tomography.” Poster presentation at the Organization for Human Brain Mapping (OHBM) 2024, Seoul, South Korea, June 2024.
  9. Fehner, W., Fogarty, M., Markow, Z., Bajracharya, A., Wilhelm, D., Trobaugh, J. W. , Huth, A. G., Culver, J. P. (2024). “Towards Semantic Visual Encoding of Naturalistic Movies with High-Density Diffuse Optical Tomography.” Poster at the Jane Street Graduate Research Fellowship Workshop 2024, New York City, USA, April 2024.
  10. Fehner, W., Fogarty, M., Markow, Z., Bajracharya, A., Wilhelm, D., Trobaugh, J. W. , Huth, A. G., Culver, J. P. (2024). “Towards Semantic Visual Encoding of Naturalistic Movies with High-Density Diffuse Optical Tomography.” Poster presented at the Imaging Science Pathway Retreat 2024, St. Louis, USA (12 April 2024).
  11. W. Fehner, M. Fogarty, M.A. Anastasio, J.P. Culver. (2022). “Comparison of Multivariate and Bivariate Functional Connectivity Approaches using High-Density Diffuse Optical Tomography for Human Brain Mapping”. Poster presented at 2023 Neuroscience Retreat, St. Louis, USA (12 October 2023).
  12. Bajracharya A, Wilhelm D, Markow Z, Fogarty M, Fehner W, Peelle JE, Hershey T, Culver JP. Precision functional mapping of cortical activity using High-Density Diffuse Optical Tomography (HD-DOT). Neuroscience Retreat, Washington University in St.Louis, MO, USA, 2023.
  13. Lin, C.-H. P.*, Fehner, W.*, Orukari, I.*, Frisk, L. K., Agato, A., Verma, M., O’Sullivan, A. J., Svoboda, C., Sumana Chetia, Eggebrecht, A. T., Turgut Durduran, Culver, J. P., &, Trobaugh, J. W. (2023). “Validating fiber-based speckle contrast optical tomography through simulation and human neuroimaging: Imaging CBF using SCOT.” Poster presented at the Organization for Human Brain Mapping (OHBM) 2023, Montreal, Canada, July 2023. DOI: 10.13140/RG.2.2.28035.89128.
  14. Bajracharya A, Wilhelm D, Markow Z, Fogarty M, Fehner W, Peelle JE, Hershey T, Culver JP. Precision functional mapping of cortical activity using High-Density Diffuse Optical Tomography. Organization of Human Brain Mapping, Montreal, Canada, 2023.
  15. Aahana Bajracharya, Wilhelm, D., Markow, Z. E., Fogarty, M., Fehner, W., Peelle, J. E., Hershey, T., & Culver, J. P. (2023). Precision Functional Mapping of Cortical Activity Using High-Density Diffuse Optical Tomography (HD-DOT). Poster presented at the Biophotonics Congress: Optics in the Life Sciences 2023, Vancouver, Canada (27 April 2023). https://doi.org/10.1364/boda.2023.jtu4b.15
  16. W. Fehner, M. Fogarty, M.A. Anastasio, J.P. Culver. (2023). “Multivariate vs Bivariate Functional Connectivity using High-Density Diffuse Optical Tomography for Human Brain Mapping.” Poster presented at 2023 Graduate Research Symposium, St. Louis USA (4 April 2023).
  17. Bajracharya A, Wilhelm D, Markow Z, Fogarty M, Fehner W, Peelle JE, Hershey T, Culver JP. Precision High-Density Diffuse Optical Tomography (pHD-DOT) for single-subject functional cortical mapping. Imaging Science Pathway Retreat, Washington University, St.Louis, MO, USA, 2023.
  18. W. Fehner, M. Fogarty, M.A. Anastasio, J.P. Culver. (2022). “Multivariate vs Bivariate Functional Connectivity with High-Density Diffuse Optical Tomography.” Poster presented at 2022 SPECTRA Conference, St. Louis, USA (21 October 2022).
  19. W. Fehner, M. Fogarty, M.A. Anastasio, J.P. Culver, “Multivariate vs Bivariate Functional Connectivity with High-Density Diffuse Optical Tomography.” Poster presented at Society for fNIRS Conference 2022, Boston, USA (11 October 2022).
  20. W. Fehner, M. Fogarty, M.A. Anastasio, J.P. Culver. (2022). “Multivariate vs Bivariate Functional Connectivity using High-Density Diffuse Optical Tomography”. Poster presented at 2022 Neuroscience Retreat, Potosi MO, USA (6 October 2022).
  21. Fehner, W., & Defne Aksit. (2021). Are Personality Characteristics of Students Related to the Study Subject? Insights from a Survey Study. “Forsch!” - Studentisches Online-Journal Der Universität Oldenburg, 1, 67–74. https://ojs.uni-oldenburg.de/journals/ojs1/ojs/index.php/forsch/article/view/77
  22. W. Fehner, T. Rinne, “Functional near-infrared spectroscopy experiment to study functional plasticity in adult auditory cortex after cochlear implant switch-on.” Poster presented at the Human Neuroscience Symposium 2021, Turku, Finland (24 April 2021).

* Authors contributed equally.