© Sylvia Kaiser

Prof. Dr. sylvia kaiser


Tel: (+49)-(0)251-83-24676
Fax: (+49)-(0)251-83-23896

Raum 151

Sprechstunde: nach Absprache

  • Forschungsschwerpunkte

    • neuroendocrine basis of behaviour
    • behavioural biology
    • prenatal stress
    • gene-environment interaction
    • social stress
    • animal welfare
  • Vita

    Akademische Ausbildung

    Dr. rer. nat (zoology, behavioural biology), Unversity of Münster
    Study of biology, Universities of Bayreuth and Münster

    Beruflicher Werdegang

    Substitute professor, Department of Behavioural Biology, WWU Münster
    Adjunct professor, Department of Behavioural Biology, University of Münster
    Associate professor, Department of Behavioural Biology, University of Münster
    Assistant professor, Department of Behavioural Biology, University of Münster
    Postdoctoral fellow, Netherlands Institute for Brain Research, Amsterdam, The Netherlands
    Assistant professor, Department of Behavioural Biology, University of Münster

    Mitgliedschaften und Aktivitäten in Gremien

    Mitglied des Vorstandes der "Münster Graduate School of Evolution" (MGSE), Westfälische Wilhelms-Universität Münster
    Member of the extended editorial board of the Ethological Society
    Mitglied des Tierschutzausschusses der Westfälischen Wilhelms-Universität Münster
    Mitglied des Vorstands des "Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience" (OCC), Westfälische Wilhelms-Universität Münster
    Mitglied der Koordinierungskommission für tierexperimentelle Forschung, Westfälische Wilhelms-Universität Münster
    Manager of the Ethological Society
    Equal opportunity commissioner of the school of Biology
    Member of the "Society for Behavioral Neuroendocrinology"
    Editorial board: Behaviour
    Co-organization first european conference on behavioural biology (ECBB) / foundation of a conference tradition
    Young German scientist at the Dahlem conference on coping with challenge
    Member of the "Deutsche Zoologische Gesellschaft" (German Zoological Society)
    Member of the "Verband Deutscher Biologen" (Association of German Biolgists)
    Speaker of the section „Behavioural Biology“ of the German Zoological Society
    Member of the "Ethologische Gesellschaft" (Ethologcial Society)
  • Projekte

  • Publikationen

    • Von Kortzfleisch VT, Ambrée O, Karp NA, Meyer N, Novak J, Palme R, Rosso M, Touma C, Würbel H, Kaiser S, Sachser N, Richter SH. . ‘Do multiple experimenters improve the reproducibility of animal studies?PLoS Biology 20(3), Nr. e3001564. doi: 10.1371/journal.pbio.3001564.
    • Kaiser S, Richter SH. . „Don’t worry, be happy? Ein verhaltensbiologischer Blick auf das Gefühlsleben der Tiere.“ In Das unterschätzte Tier, herausgegeben von Sachser N, Kästner N, Zimmermann T, 33-48.
    • Rystrom TL, Prawitt RC, Richter SH, Sachser N, Kaiser S. . ‘Repeatability of endocrine traits and dominance rank in female guinea pigs.’ Frontiers in Zoology 19, Nr. 1: 4. doi: 10.1186/s12983-021-00449-2.

    • Feige-Diller J, Palme R, Kaiser S, Sachser N, Richter SH. . ‘The impact of varying food availability on health and welfare in mice: Testing the Match-Mismatch hypothesis.’ Physiology & Behavior 228, Nr. 113193. doi: 10.1016/j.physbeh.2020.113193.
    • Mutwill AM, Schielzeth H, Zimmermann TD, Richter SH, Kaiser S, Sachser N. . ‘Individuality meets plasticity: Endocrine phenotypes across male dominance rank acquisition in guinea pigs living in a complex social environment.’ Hormones and Behavior 131, Nr. 104967. doi: 10.1016/j.yhbeh.2021.104967.
    • Stieger B, Melotti L, Quante SM, Kaiser S, Sachser N, Richter SH. . ‘A step in the right direction: the effect of context, strain and sex on paw preference in mice.’ Animal Behaviour 174: 21-30. doi: 10.1016/j.anbehav.2021.01.012.
    • Bodden C, Wewer M, Kästner N, Palme R, Kaiser S, Sachser N, Richter SH. . ‘Not all mice are alike: Mixed-strain housing alters social behaviour.’ Physiology & Behavior 228, Nr. 113220. doi: 10.1016/j.physbeh.2020.113220.
    • Melotti L, Siestrup S, Peng M, Vitali V, Dowling D, von Kortzfleisch VT, Bracic M, Sachser N, Kaiser S, Richter SH. . ‘Individuality, as well as genetic background, affects syntactical features of courtship songs in male mice.’ Animal Behaviour 180: 179-196.

    • Feige-Diller J, Krakenberg V, Bierbaum L, Seifert L, Palme R, Kaiser S, Sachser N, Richter SH. . ‘The effects of different feeding routines on welfare in laboratory mice.’ Frontiers in Veterinary Science 6: 479.
    • Von Kortzfleisch VT, Karp NA, Palme R, Kaiser S, Sachser N, Richter SH. . ‘Improving reproducibility in animal research by splitting the study population into several ‘mini-experiments’.’ Scientific Reports 10, Nr. 16579. doi: 10.1038/s41598-020-73503-4.
    • Müller C, Caspers BA, Gadau J, Kaiser S. . ‘The Power of Infochemicals in Mediating Individualized Niches.’ Trends in Ecology and Evolution XX(XX). [online first]
    • Mutwill AM, Zimmermann TD, Hennicke A, Richter SH, Kaiser S, Sachser N. . ‘Adaptive reshaping of the hormonal phenotype after social niche transition in adulthood.’ Proceedings of the Royal Society B: Biological Sciences 287. doi: 10.1098/rspb.2020.0667.
    • Sachser N, Zimmermann TD, Hennessy MB, Kaiser S. . ‘Sensitive phases in the development of rodent social behavior.’ Current Opinion in Behavioral Sciences 36: 63-70. doi: 10.1016/j.cobeha.2020.07.014.

    • Mutwill AM, Zimmermann TD, Reuland C, Fuchs S, Kunert J, Richter SH, Kaiser S, Sachser N. . ‘High reproductive success despite queuing – Socio-sexual development of males in a complex social environment.’ Frontiers in Psychology 10: 2810.
    • Krakenberg V, von Kortzfleisch V, Kaiser S, Sachser N, Richter SH. . ‘Differential effects of serotonin transporter genotype on anxiety-like behavior and cognitive judgment bias in mice.’ Frontiers in Behavioral Neuroscience 13: 263.
    • Bodden C, von Kortzfleisch V, Karwinkel F, Kaiser S, Sachser N, Richter SH. . ‘Heterogenising study samples across testing time improves reproducibility of behavioural data.’ Scientific Reports 9: 8247.
    • Von Kortzfleisch V, Kästner N, Prange L, Kaiser S, Sachser N, Richter SH. . ‘Have I been here before? Effects of repeated testing and age on the results of behavioural tests.’ Behavioural Brain Research 367: 143-148.
    • Melotti L, Kästner N, Eick AK, Schnelle AL, Palme R, Sachser N, Kaiser S, Richter SH. . ‘Can live with ‘em, can live without ‘em: pair housed male C57BL/6J mice show low aggression and increasing sociopositive interactions with age, but can adapt to single housing if separated.Applied Animal Behaviour Science 214: 79-88.
    • Kästner N, Richter SH, Urbanik S, Kunert J, Waider J, Lesch K-P, Kaiser S, Sachser N. . ‘Brain serotonin deficiency affects female aggression.’ Scientific Reports 9, Nr. 1366.
    • Krakenberg V, Woigk I, Garcia Rodriguez L, Kästner N, Kaiser S, Sachser N, Richter SH. . ‘Technology or ecology? New tools to assess cognitive judgement bias in mice.’ Behavioural Brain Research 362: 279-287.

    • Bodden C, Siestrup S, Palme R, Kaiser S, Sachser N, Richter SH. . ‘Evidence-based severity assessment: Impact of repeated versus single open-field testing on welfare in C57BL/6J mice.’ Behavioural Brain Research 336: 261-268.
    • Sangenstedt S, Szardenings C, Sachser N, Kaiser, S. . ‘Does the early social environment prepare individuals for the future? A match-mismatch experiment in female wild cavies.’ Frontiers in Zoology 15:13. doi: 10.1186/s12983-018-0261-1.
    • Kästner N, Richter SH, Bodden C, Palme R, Kaiser S, Sachser N. . ‘Varying social experiences in adulthood do not differentially affect anxiety-like behavior but stress hormone levels.’ Frontiers in Behavioral Neuroscience 12: 72.
    • Sachser N, Hennessy MB, Kaiser S. . ‘The adaptive shaping of social behavioural phenotypes during adolescence.’ Biology Letters 14. doi: 10.1098/rsbl.2018.0536.
    • Sachser N, Richter SH, Kaiser S. . „Artgerecht/tiergerecht.“ In Handbuch Tierethik, herausgegeben von Ach JS, Borchers D, 155-160. Stuttgart: J. B. Metzler Verlag.
    • Richter SH, Sachser N, Kaiser S. . „Emotionen.“ In Handbuch Tierethik, herausgegeben von Ach JS, Borchers D, 64-69. Stuttgart: J. B. Metzler Verlag.

    • Sangenstedt S., Jaljuli I., Sachser N., Kaiser S. . ‘Stress responsiveness and anxiety-like behavior: The early social environment differentially shapes stability over time in a small rodent.’ Hormones and Behavior 90, Nr. null: 90-97. doi: 10.1016/j.yhbeh.2017.02.010.
    • Zimmermann TD, Kaiser S, Sachser N. . ‘The adaptiveness of a queuing strategy shaped by social experiences during adolescence.’ Physiology and Behavior 181: 29-37. doi: 10.1016/j.physbeh.2017.08.025.
    • Meyer N, Jenikejew J, Richter SH, Kaiser S, Sachser N. . ‘Social experiences during adolescence affect anxiety-like behavior but not aggressiveness in male mice.’ Behavioural Brain Research 326: 147-153. doi: 10.1016/j.bbr.2017.03.017.
    • Siegeler K, Lewejohann L, Failing K., Sachser N, Kaiser S. . ‘Start early! Does social instability during the pre- and early postnatal development prepare male wild cavies for social challenge later in life?Frontiers in Zoology 14:2.
    • Zimmermann TD, Kaiser S, Hennessy MB, Sachser N. . ‘Adaptive shaping of the behavioural and neuroendocrine phenotype during adolescence.’ Proceedings of the Royal Society B: Biological Sciences 284, Nr. 1849. doi: 10.1098/rspb.2016.2784.
    • Kästner, N, Richter, SH, Gamer, M, Kaiser, S, Sachser, N. . ‘What a difference a day makes - female behaviour is less predictable near ovulation.’ Royal Society Open Science 4. doi: 10.1098/rsos.160998.

    • Graulich DM, Kaiser S, Sachser N, Richter SH. . ‘Looking on the bright side of bias - validation of an affective bias test for laboratory mice.’ Applied Animal Behaviour Science 181: 173-181.
    • Meyer N, Richter SH, Schreiber RS, Kloke V, Kaiser S, Lesch KP, Sachser N. . ‘The Unexpected Effects of Beneficial and Adverse Social Experiences during Adolescence on Anxiety and Aggression and Their Modulation by Genotype.’ Frontiers in Behavioral Neuroscience 10, Nr. 97. doi: 10.3389/fnbeh.2016.00097.
    • Richter SH, Kästner, N, Loddenkemper, DH, Kaiser, S, Sachser, N. . ‘A time to wean? Impact of weaning age on anxiety-like behaviour and stability of behavioural traits in full adulthood.’ PLoS ONE 11(12): e0167652. doi: 10.1371/journal.pone.0167652.
    • Richter, SH, Kästner, N, Kriwet, M, Kaiser, S, Sachser, N. . ‘Play matters - the surprising relationship between juvenile playfulness and anxiety in later life.’ Animal Behaviour 114: 261-271. doi: 10.1016/j.anbehav.2016.02.003.

    • Kaiser S, Hennessy MB, Sachser N. . ‘Domestication affects the structure, development and stability of biobehavioural profiles.’ Frontiers in Zoology 12 (Suppl1): 19.
    • Kaiser,S; Siegeler, K; Schwerdt, B; Sachser N. . ‘Social instability during pregnancy and lactation alters female wild cavy offsprings endocrine status and behaviour later in life.Behaviour 152, Nr. 7-8: 837-859.
    • Bodden, C; Richter, SH; Schreiber, RS; Kloke, V; Gerss, J; Palme, R; Lesch, KP; Lewejohann, L; Kaiser, S; Sacher, N. . ‘Benefits of adversity?! How life history affects the behavioral profile of mice varying in serotonin transporter genotype.’ Frontiers in Behavioral Neuroscience 9, Nr. 47. doi: 10.3389/fnbeh.2015.00047.
    • Kästner N., Richter S.H., Lesch K.P., Schreiber R.S., Kaiser S., Sachser N. . ‘Benefits of a "vulnerability gene"? A study in serotonin transporter knockout mice.’ Behavioural Brain Research 283. doi: 10.1016/j.bbr.2015.01.031.
    • Hennessy MB, Kaiser S, Tiedtke T, Sachser N. . ‘Stability and change: Stress responses and the shaping of behavioral phenotypes over the life span.’ Frontiers in Zoology 12 (Suppl 1): 18. doi: 10.1186/1742-9994-12-S1_S18.

    • Kloke V., Schreiber R., Bodden C., Möllers J., Ruhmann H., Kaiser S., Lesch K., Sachser N., Lewejohann L. . ‘Hope for the best or prepare for the worst? Towards a spatial cognitive bias test for mice.’ PLoS ONE 9, Nr. 8. doi: 10.1371/journal.pone.0105431.
    • Zipser B, Schleking A, Kaiser S, Sachser N. . ‘Effects of domestication on biobehavioural profiles: a comparison of domestic guinea pigs and wild cavies from early to late adolescence.’ Frontiers in Zoology 11.
    • Guenther A, Palme R, Dersen M, Kaiser S, Trillmich F. . ‘Photoperiodic effects on reproductive development in male cavies (Cavia aperea).’ Physiology and Behaviour 123: 142-147.

    • Zipser B, Kaiser S, Sachser N. . ‘Dimensions of Animal Personalities in Guinea Pigs.’ Ethology 119, Nr. 11: 970-982.
    • Karabeg MM, Grauthoff S, Kollert SY, Weidner M, Heiming RS, Jansen F, Popp S, Kaiser S, Lesch KP, Sachser N, Schmitt AG, Lewejohann L. . ‘5-HTT Deficiency Affects Neuroplasticity and Increases Stress Sensitivity Resulting in Altered Spatial Learning Performance in the Morris Water Maze but Not in the Barnes Maze.PLoS ONE 8, Nr. 10: e78238.
    • Siegeler K, Wistuba J, Damm OS, von Engelhardt N, Sachser N, Kaiser S. . ‘Early social instability affects plasma testosterone during adolescence but does not alter reproductive capacity or measures of stress later in life.Physiology and Behavior 120C: 143-149. doi: 10.1016/j.physbeh.2013.08.008.
    • Sachser N, Kaiser S, Hennessy MB. . ‘Behavioural profiles are shaped by social experience: when, how and why.Philosophical Transactions of the Royal Society B: Biological Sciences 368, Nr. 1618: 20120344. doi: 10.1098/rstb.2012.0344.
    • Kloke V, Heiming RS, Bölting S, Kaiser S, Lewejohann L, Lesch KP, Sachser N. . ‘Unexpected effects of early-life adversity and social enrichment on the anxiety profile of mice varying in serotonin transporter genotype.Behavioural Brain Research 247C: 248-258. doi: 10.1016/j.bbr.2013.03.039.
    • Hohoff C, Gorji A, Kaiser S, Willscher E, Korsching E, Ambree O, Arolt V, Lesch KP, Sachser N, Deckert J, Lewejohann L. . ‘Effect of acute stressor and serotonin transporter genotype on amygdala first wave transcriptome in mice.’ PLoS ONE 8, Nr. 3: e58880.

    • Stock C, Kaiser S. . „Humanbiologische Grundlagen der Gesundheitswissenschaften.“ In Handbuch Gesundheitswissenschaften., herausgegeben von Hurrelmann K, Razum O, 99-122. Weinheim, München: Juventa Verlag.
    • Albert FW, Somel M, Carneiro M, Aximu-Petri A, Halbwax M, Thalmann O, Blanco-Aguiar JA, Plyusnina IZ, Trut L, Villafuerte R, Ferrand N, Kaiser S, Jensen P, Pääbo S. . ‘A Comparison of Brain Gene Expression Levels in Domesticated and Wild Animals.PLoS Genetics 8(9): e1002962.

    • Sachser N, Hennessy MB, Kaiser S. . ‘Adaptive Modulation of Behavioural Profiles by Social Stress During Early Phase of Life and Adolescence.’ Neuroscience and Biobehavioral Reviews 35, Nr. 7: 1518-1533. doi: 10.1016/j.neubiorev.2010.09.002.
    • Jansen F, Heiming RS, Kloke V, Kaiser S, Palme R, Lesch KP, Sachser N. . ‘Away game or home match: The influence of venue and serotonin transporter genotype on the display of offensive aggression.’ Behavioural Brain Research 219, Nr. 2: 291-301. doi: 10.1016/j.bbr.2011.01.029.
    • Heiming RS, Bodden C, Jansen F, Lewejohann L, Kaiser S, Lesch KP, Palme R, Sachser N. . ‘Living in a dangerous world decreases maternal care: A study in serotonin transporter knockout mice.Hormones and Behavior Volume 60, Nr. 4: 397–407. doi: 10.1016/j.yhbeh.2011.07.006.
    • Siegeler K, Sachser N, Kaiser S. . ‘The social environment during pregnancy and lactation shapes the behavioural and hormonal profile of male offspring in wild cavies.Developmental Psychobiology 53: 575-584.
    • Lürzel S, Kaiser S, Sachser N. . ‘Social interaction decreases stress responsiveness during adolescence.Psychoneuroendocrinology 36, Nr. 9: 1370-7. doi: 10.1016/j.psyneuen.2011.03.010.
    • Lürzel S, Kaiser S, Krüger, C., Sachser N. . ‘Inhibiting influence of testosterone on stress responsiveness during adolescence.Hormones and Behavior 60, Nr. 5: 691-698.

    • Lurzel S, Kaiser S, Sachser N. . ‘Social Interaction, Testosterone, and Stress Responsiveness During Adolescence.’ Physiology and Behavior 99, Nr. 1: 40-46. doi: 10.1016/j.physbeh.2009.10.005.
    • Lewejohann L, Kloke V, Heiming RS, Jansen F, Kaiser S, Schmitt A, Lesch KP, Sachser N. . ‘Social Status and Day-to-Day Behaviour of Male Serotonin Transporter Knockout Mice.’ Behavioural Brain Research 211, Nr. 2: 220-228. doi: 10.1016/j.bbr.2010.03.035.
    • Kaiser S, Krüger C, Sachser N. . ‘The guinea pig.’ In The care and management of laboratory and other research animals, edited by Hubrecht R, Kirkwood J., 380-398. Chichester UK: Wiley-Blackwell. doi: 10.1002/9781444318777.ch27.
    • Sachser N., Kaiser S. . ‘The social modulation of behavioural development.’ In Animal Behaviour: Evolution and Mechanisms, edited by Kappeler P., 505-536. Springer Verlag. doi: 10.1007/978-3-642-02624-9_17.
    • Kaiser S., Sachser N. . ‘Sex-Specific Effects of Early Social Stress in Mammals: A Study in Guinea Pigs.’ In Encyclopedia of Stress, edited by Fink, G, 479-484. Elsevier Inc. doi: 10.1016/B978-012373947-6.00478-5.
    • Lewejohann L., Pickel T., Sachser N., Kaiser S. . ‘Wild genius - domestic fool? Spatial learning abilities of wild and domestic guinea pigs.’ Frontiers in Zoology 7, Nr. null. doi: 10.1186/1742-9994-7-9.

    • Kemme K, Kaiser S, von Engelhardt N, Wewers D, Groothuis T, Sachser N. . ‘An Unstable Social Environment Affects Sex Ratio in Guinea Pigs: An Adaptive Maternal Effect?Behaviour 146, Nr. 11: 1513-1529. doi: 10.1163/156853909X445579.
    • Kaiser S, Sachser N. . ‘Effects of Prenatal Social Stress on Offspring Development: Pathology or Adaptation?Current Directions in Psychological Science 18, Nr. 2: 118-121. doi: 10.1111/j.1467-8721.2009.01620.x.
    • Hennessy MB, Kaiser S, Sachser N. . ‘Social Buffering of the Stress Response: Diversity, Mechanisms, and Functions.’ Frontiers in Neuroendocrinology 30, Nr. 4: 470-482. doi: 10.1016/j.yfrne.2009.06.001.
    • Heiming RS, Jansen F, Lewejohann L, Kaiser S, Schmitt A, Lesch KP and Sachser N. . ‘Living in a dangerous world: the shaping of behavioral profile by early environment and 5-HTT genotype.’ Frontiers in Behavioral Neuroscience 3, Nr. 26. doi: 10.3389/neuro.08.026.2009.
    • Trillmich F, Mueller B, Kaiser S, Krause J. . ‘Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions.Physiology and Behavior 96, Nr. 3: 476-480. doi: 10.1016/j.physbeh.2008.11.014.

    • Adrian O, Kaiser S, Sachser N, Jandewerth P, Lottker P, Epplen JT, Hennessy MB. . ‘Female Influences on Pair Formation, Reproduction and Male Stress Responses in a Monogamous Cavy (Galea Monasteriensis).’ Hormones and Behavior 53, Nr. 3: 403-412. doi: 10.1016/j.yhbeh.2007.11.009.
    • Kemme K, Kaiser S, Sachser N. . ‘Prenatal Stress Does Not Impair Coping with Challenge Later in Life.’ Physiology and Behavior 93, Nr. 1-2: 68-75. doi: 10.1016/j.physbeh.2007.07.013.
    • Kaiser S, Touma C, Galert T, Würbel H. . ‘Animal Suffering - Fact or Fiction?In Theology meets biology. Anthropological perspectives on animals and human beings, edited by Müller K, Sachser N., 14. Regensburg: Anton Pustet.

    • Kemme K, Kaiser S, Sachser N. . ‘Prenatal Maternal Programming Determines Testosterone Response During Social Challenge.’ Hormones and Behavior 51, Nr. 3: 387-394. doi: 10.1016/j.yhbeh.2006.12.009.
    • Kaiser S, Harderthauer S, Sachser N, Hennessy MB. . ‘Social Housing Conditions Around Puberty Determine Later Changes in Plasma Cortisol Levels and Behavior.’ Physiology and Behavior 90, Nr. 2-3: 405-411. doi: 10.1016/j.physbeh.2006.10.002.

    • Hennessy MB, Hornschuh G, Kaiser S, Sachser N. . ‘Cortisol Responses and Social Buffering: A Study Throughout the Life Span.’ Hormones and Behavior 49, Nr. 3: 383-390. doi: 10.1016/j.yhbeh.2005.08.006.
    • Hennessy MB, Bullinger KL, Neisen G, Kaiser S, Sachser N. . ‘Social Organization Predicts Nature of Infant-Adult Interactions in Two Species of Wild Guinea Pigs (Cavia aperea and Galea Monasteriensis).’ Journal of Comparative Psychology 120, Nr. 1: 12-18. doi: 10.1037/0735-7036.120.1.12.

    • Wewers D, Kaiser S, Sachser N. . ‘Application of an Antiandrogen During Pregnancy Infantilizes the Male Offsprings' Behaviour.’ Behavioural Brain Research 158, Nr. 1: 89-95. doi: 10.1016/j.bbr.2004.08.009.
    • Kaiser S, Sachser N. . ‘The Effects of Prenatal Social Stress on Behaviour: Mechanisms and Function.’ Neuroscience and Biobehavioral Reviews 29, Nr. 2: 283-294. doi: 10.1016/j.neubiorev.2004.09.015.

    • Sachser N, Künzl C, Kaiser S. . ‘The welfare of laboratory guinea pigs.’ In The welfare of laboratory animals, edited by Kalista E, 181-209. Dordrecht, The Netherlands: Kluwer Academic.

    • Kaiser S, Kruijver FPM, Swaab DF, Sachser N. . ‘Early Social Stress in Female Guinea Pigs Induces a Masculinization of Adult Behavior and Corresponding Changes in Brain and Neuroendocrine Function.’ Behavioural Brain Research 144, Nr. 1-2: 199-210. doi: 10.1016/S0166-4328(03)00077-9.
    • Kaiser S, Kruijver FPM, Straub RH, Sachser N, Swaab DF. . ‘Early Social Stress in Male Guinea-Pigs Changes Social Behaviour, and Autonomic and Neuroendocrine Functions.’ Journal of Neuroendocrinology 15, Nr. 8: 761-769. doi: 10.1046/j.1365-2826.2003.01055.x.
    • Kunzl C, Kaiser S, Meier E, Sachser N. . ‘Is A Wild Mammal Kept and Reared in Captivity Still a Wild Animal?Hormones and Behavior 43, Nr. 1: 187-196. doi: 10.1016/S0018-506X(02)00017-X.
    • Wewers D, Kaiser S, Sachser N. . ‘Maternal Separation in Guinea-Pigs: A Study in Behavioural Endocrinology.’ Ethology 109, Nr. 5: 443-453. doi: 10.1046/j.1439-0310.2003.00888.x.
    • Kaiser S, Nubold T, Rohlmann I, Sachser N. . ‘Pregnant Female Guinea Pigs Adapt Easily to a New Social Environment Irrespective of their Hearing Conditions.’ Physiology and Behavior 80, Nr. 1: 147-153. doi: 10.1016/S0031-9384(03)00228-2.
    • Kaiser S, Kirtzeck M, Hornschuh G, Sachser N. . ‘Sex-Specific Difference in Social Support - a Study in Female Guinea Pigs.’ Physiology and Behavior 79, Nr. 2: 297-303. doi: 10.1016/S0031-9384(03)00091-X.
    • Kaiser S, Heemann K, Straub RH, Sachser N. . ‘The Social Environment Affects Behaviour and Androgens, But Not Cortisol in Pregnant Female Guinea Pigs.’ Psychoneuroendocrinology 28, Nr. 1: 67-83. doi: 10.1016/S0306-4530(02)00010-0.
    • Kaiser S, Nübold T, Rohlmann I, Sachser N. . ‘Pregnant female guinea pigs adapt easily to a new social environment irrespective of their rearing conditions.Physiology and Behavior 80, Nr. 1: 147-53. doi: 10.1016/S0031-9384(03)00228-2.

    • Kaiser S, Sachser N. . ‘Social Stress During Pregnancy and Lactation Affects in Guinea Pigs the Male Offsprings' Endocrine Status and Infantilizes their Behaviour.’ Psychoneuroendocrinology 26, Nr. 5: 503-519. doi: 10.1016/S0306-4530(01)00009-9.
    • Forkmann B, Blokhuis HJ, Broom DM, Kaiser S, Koolhaas JM, Levine S, Mendl M, Plotsky PM, Schedlowski M. . ‘Key sources of variability in coping.’ In Coping with challenge: welfare in animals including humans, edited by Broom DM., 22. Berlin: Selbstverlag / Eigenverlag / Self-publishing.
    • Kaiser S, Sachser N. . „Stress und Wohlergehen.“ Praxis der Naturwissenschaften: Biologie in der Schule 50, Nr. 5: 15-20.

    • Kaiser S, Brendel H, Sachser N. . ‘Effects of ACTH Applications During Pregnancy on the Female Offsprings' Endocrine Status and Behavior in Guinea Pigs.’ Physiology and Behavior 70, Nr. 1-2: 157-162. doi: 10.1016/S0031-9384(00)00248-1.

    • Kaiser S, Sachser N. . ‘The Social Environment During Pregnancy and Lactation Affects the Female Offsprings' Endocrine Status and Behaviour in Guinea Pigs.Physiology and Behavior 63, Nr. 3: 361-366. doi: 10.1016/S0031-9384(97)00435-6.

    • Sachser N, Kaiser S. . ‘The Social Environment, Behaviour and Stress - a Case Study in Guinea Pigs.’ Acta physiologica Scandinavica. Supplementum 161: 83-87.

    • Sachser N, Kaiser S. . ‘Prenatal Social Stress Masculinizes the Females' Behaviour in Guinea Pigs.Physiology and Behavior 60, Nr. 2: 589-94. doi: 10.1016/S0031-9384(96)80036-9.