Katie Morrison, Ph.D.

Phone 970-351-2995
Location Ross 2240C
Address 501 20th St, Campus Box 122, Greeley, CO 80639
A headshot of Katie Morrison.

Education

PhD, University of Nebraska, 2012.
Area of Study: Mathematics, Minor in Electrical Engineering
Thesis: Equivalence and duality for rank-metric and matrix codes
Advisor: Dr. Judy Walker

MS, University of Nebraska, 2008.
Area of Study: Mathematics

BA, Swarthmore College, 2005.
Area of Study: Mathematics and Psychology

Professional Experience & Affiliations

Professor, University of Northern Colorado
Department of Mathematical Sciences (2023 – Present)

Associate Chair, University of Northern Colorado
Department of Mathematical Sciences (2022 – Present)

Associate Professor, University of Northern Colorado
Department of Mathematical Sciences (2017 – 2023)

Assistant Professor, University of Northern Colorado
Department of Mathematical Sciences (2012 – 2017)

Research Associate, Pennsylvania State University
Department of Mathematics (2015)

Research Expertise & Interests

Algebraic Coding Theory

I’m interested in how algebraic and discrete structures can be used to support efficient transmission and storage of information.

Mathematical Neuroscience

I work on mathematics questions arising from theoretical neuroscience, particularly neural network theory and neural coding. I’m interested in applications of linear algebra, abstract algebra, and discrete math.

Publications

Google scholar profile  

  • Morrison, K., Degeratu, A., Itskov, V., Curto, C. (2024). Diversity of emergent dynamics in competitive threshold-linear networks. SIAM Journal on Dynamical Systems, 23(1), 855-884.. DOI: https://doi.org/10.1137/22M1541666
  • Curto, C., Morrison, K. (2023). Graph rules for recurrent network dynamics. Notices of the American Mathematical Society, 70(4).
  • Curto, C., Geneson, J., Morrison, K. (2023). Stable fixed points of combinatorial threshold-linear networks. Advances in Applied Mathematics, 154.
  • Parmelee, C., Moore, S., Morrison, K., Curto, C. (2022). Core motifs predict dynamic attractors in combinatorial threshold-linear networks. PLOS ONE, 17, 1-21.
  • Parmelee, C., Alvarez, J. L., Curto, C., Morrison, K. (2022). Sequential attractors in combinatorial threshold-linear networks. SIAM J. Appl. Dyn. Syst., 21(2), 1597-1630.
  • Curto, C., Morrison, K. (2019). Relating network connectivity to dynamics: opportunities and challenges for theoretical neuroscience. Curr Opin Neurobiol, 58, 11-20.
  • Curto, C., Gross, E., Jeffries, J., Morrison, K., Rosen, Z., Shiu, A., Youngs, N. (2019). Algebraic signatures of convex and non-convex codes. J. of Pure and Appl. Algebra.
  • Curto, C., Geneson, J., Morrison, K. (2019). Fixed Points of Competitive Threshold-Linear Networks. Neural computation, 31(1), 94-155.. DOI: https://doi.org/10.1162/neco_a_01151
  • Burzynski, A., Anderson, S., Morrison, K., Patrick, M., Orr, T., Thelan, W. (2018). Lava lake thermal pattern classification using self-organizing maps and relationships to eruption processes at Kīlauea Volcano, Hawaii.. DOI: https://doi.org/10.1130/2018.2538(14)
  • Curto, C., Gross, E., Jeffries, J., Morrison, K., Omar, M., Rosen, Z., Shiu, A., Youngs, N. (2017). What makes a neural code convex? SIAM J. Appl. Algebra and Geometry, 1, 222-238.
  • Curto, C., Morrison, K. (2016). Pattern Completion in Symmetric Threshold-Linear Networks. Neural computation, 28(12), 2825-2852.. DOI: https://doi.org/10.1162/NECO_a_00869
  • Gluesing-Luerssen, H., Morrison, K., Troha, C. (2015). Cyclic Orbit Codes and Stabilizer Subfields. Advances in Math. of Commun., 9(2), 177-197.
  • Morrison, K. (2015). Enumeration of Equivalence Classes of Self-Dual Matrix Codes. Advances in Math. of Commun., 9(4), 415-436.
  • Morrison, K., Degeratu, A., Itskov, V., Curto, C. (2024). Diversity of emergent dynamics in competitive threshold-linear networks. SIAM Journal on Dynamical Systems, 23(1), 855-884.. DOI: https://doi.org/10.1137/22M1541666
  • Curto, C., Morrison, K. (2023). Graph rules for recurrent network dynamics. Notices of the American Mathematical Society, 70(4).
  • Curto, C., Geneson, J., Morrison, K. (2023). Stable fixed points of combinatorial threshold-linear networks. Advances in Applied Mathematics, 154.
  • Parmelee, C., Moore, S., Morrison, K., Curto, C. (2022). Core motifs predict dynamic attractors in combinatorial threshold-linear networks. PLOS ONE, 17, 1-21.
  • Parmelee, C., Alvarez, J. L., Curto, C., Morrison, K. (2022). Sequential attractors in combinatorial threshold-linear networks. SIAM J. Appl. Dyn. Syst., 21(2), 1597-1630.
  • Curto, C., Morrison, K. (2019). Relating network connectivity to dynamics: opportunities and challenges for theoretical neuroscience. Curr Opin Neurobiol, 58, 11-20.
  • Curto, C., Gross, E., Jeffries, J., Morrison, K., Rosen, Z., Shiu, A., Youngs, N. (2019). Algebraic signatures of convex and non-convex codes. J. of Pure and Appl. Algebra.
  • Curto, C., Geneson, J., Morrison, K. (2019). Fixed Points of Competitive Threshold-Linear Networks. Neural computation, 31(1), 94-155.. DOI: https://doi.org/10.1162/neco_a_01151
  • Burzynski, A., Anderson, S., Morrison, K., Patrick, M., Orr, T., Thelan, W. (2018). Lava lake thermal pattern classification using self-organizing maps and relationships to eruption processes at Kīlauea Volcano, Hawaii.. DOI: https://doi.org/10.1130/2018.2538(14)
  • Curto, C., Gross, E., Jeffries, J., Morrison, K., Omar, M., Rosen, Z., Shiu, A., Youngs, N. (2017). What makes a neural code convex? SIAM J. Appl. Algebra and Geometry, 1, 222-238.
  • Curto, C., Morrison, K. (2016). Pattern Completion in Symmetric Threshold-Linear Networks. Neural computation, 28(12), 2825-2852.. DOI: https://doi.org/10.1162/NECO_a_00869
  • Gluesing-Luerssen, H., Morrison, K., Troha, C. (2015). Cyclic Orbit Codes and Stabilizer Subfields. Advances in Math. of Commun., 9(2), 177-197.
  • Morrison, K. (2015). Enumeration of Equivalence Classes of Self-Dual Matrix Codes. Advances in Math. of Commun., 9(4), 415-436.

Grants and Sponsored Research

  • Jameson, M. (Principal), Lewis, J. (Co-Principal), Karakok, G. (Co-Principal), Morrison, K. (Supporting), “Improving Productive Mathematical Dispositions of Pre-Service Elementary Teachers,” Sponsored by NSF-IUSE Track 1 Level 1, Federal, $299,988.00. (May 1, 2023 – April 30, 2026).
  • Morrison, K., “Collaborative Research: Emergent sequences from recurrent network motifs,” Sponsored by National Science Foundation, $319,340.00. (August 2020 – July 2024).
  • Morrison, K., “Math + Neuroscience: Strengthening the interplay between theory and mathematics,” Sponsored by The Institute for Computational and Experimental Research in Mathematics. (September 2023 – December 2023).
  • Morrison, K. (Co-Principal), Curto, C. (Principal), “Emergent Dynamics from Network Connectivity: A Minimal Model,” Sponsored by NIH BRAIN Initiative, Federal, $1,100,000.00. (September 2016 – June 2019).