Refinement of animal experiments and housing conditions
CV
Academic Education
Ph.D. studies at the Institute for Neuro- and Behavioural Biology, University of Münster
Master of Science in Biosciences, University of Münster
Bachelor of Sciene in Biosciences, University of Münster
Positions
Postdoctoral researcher at the Department of Behavioural Biology, University of Münster
PhD student at the Department of Behavioural Biology, University of Münster
Articles in Scientific Journals, Newspapers or Magazines
Siewert, V, Bierbaum, L, Gleske, M, Mundinger, C, Palme, R, Kaiser, S, Sachser, N, and Richter, SH. . “Effects of enrichment removal on cognitive judgement bias of mice: a comparison of two paradigms.” Frontiers in Veterinary Science13 1813283. doi: 10.3389/fvets.2026.1813283.
Bračić, M, Bierbaum, L, Peng, M, Nimalavachchlan, L, Siewert, V, Kaiser, S, Sachser, N, and Richter, SH. . “The behavioural ecology of optimism: judgement bias and foraging under predation risk in mice.” Animal Behaviour219 122991. doi: 10.1016/j.anbehav.2024.10.005.
Siewert, V, Kaiser, S, Sachser, N, and Richter, SH. . “Optimism and pessimism: a concept for behavioural ecology.” Biological reviews100: 1152–1162. doi: 10.1111/brv.13178.
Bierbaum, L, Mundinger, C, Siewert, S, Kaiser, S, and Richter, SH. . “Forever an optimist? Investigating the temporal consistency of optimism within and across life phases in rats.” Animal Behaviour229 123334. doi: 10.1016/j.anbehav.2025.123334.
Quante, SM, Siewert, V, Palme, R, Kaiser, S, Sachser, N, and Richter, SH. . “The power of a touch: Regular touchscreen training but not its termination affects hormones and behavior in mice.” Frontiers in Behavioral Neuroscience17. doi: 10.3389/fnbeh.2023.1112780.
Bračić, M, Bohn, L, Siewert, V, von, Kortzfleisch V, Schielzeth, H, Kaiser, S, Sachser, N, and Richter, SH. . “Once an Optimist, Always an Optimist? Studying Cognitive Judgment Bias in Mice.” Behavioral Ecology33: 775–788.
Siewert, V, and Richter, SH. . “Always Looking on the Bright Side of Life?” forschung. Das Magazin der Deutschen Forschungsgemeinschaft3 (4): 24–27.
Krakenberg, V, Wewer, M, Palme, R, Kaiser, S, Sachser, N, and Richter, SH. . “Regular touchscreen training affects faecal corticosterone metabolites and anxiety-like behaviour in mice.” Behavioural Brain Research401: 113080. doi: 10.1016/j.bbr.2020.113080.
Feige-Diller, J, Krakenberg, V, Bierbaum, L, Seifert, L, Palme, R, Kaiser, S, Sachser, N, and Richter, SH. . “The effects of different feeding routines on welfare in laboratory mice.” Frontiers in Veterinary Science6: 479.
Krakenberg, Viktoria, Siestrup, Sophie, Palme, Rupert, Kaiser, Sylvia, Sachser, Norbert, and Richter, SophieHelene. . “Effects of different social experiences on emotional state in mice.” Scientific Reports10 (15255). doi: 10.1038/s41598-020-71994-9.
Krakenberg, V, von, Kortzfleisch V, Kaiser, S, Sachser, N, and Richter, SH. . “Differential effects of serotonin transporter genotype on anxiety-like behavior and cognitive judgment bias in mice.” Frontiers in Behavioral Neuroscience13: 263.
Krakenberg, V, Woigk, I, Garcia, Rodriguez L, Kästner, N, Kaiser, S, Sachser, N, and Richter, SH. . “Technology or ecology? New tools to assess cognitive judgement bias in mice.” Behavioural Brain Research362: 279–287. doi: 10.1016/j.bbr.2019.01.021.