© Peter Leßmann

Prof. Dr. norbert sachser

sachser@uni-muenster.de

Tel: (+49)-(0)251-83-23884
Fax: (+49)-(0)251-83-23896

Room 152

Office hours: upon consultation

 

  • Research Foci

    • Behavioural biology
    • Environment, genes, and behaviour
    • Stress & welfare
    • Evolution and development of social behavior
    • Biology of individuality

  • CV

    Academic Education

    Studies in biology, chemistry, and social sciences promoted by the German National Academic Foundation at the University of Bielefeld, Germany
    PhD thesis (Dr. rer. nat) in zoology and behavioural biology promoted by the German National Academic Foundation at the department of Behavioural Biology, University of Bielefeld, Germany

    Positions

    Senior professorship at the faculty of biology, University of Münster
    Professor (C4) for behavioural biology, University of Münster
    Professor (C3) for zoology and behavioural biology, University of Münster
    Assistant professor, Department for Animal Physiology, Bayreuth University
    Habilitation and venia legendi in zoology, Bayreuth University
    Postdoctoral fellow, Department for Animal Physiology, Bayreuth University

    Honors

    Award for Science Communication - communicating.knowledge – Münster University Society
    Honorary member of the Ethological Society – Board of the Ethological Society

    External Functions

    Chairman of the academic advisory council of the Institute for Ornithology "Ornithological Station Helgoland"
    President of Münster Alliance for Science
    Member of scientific advisory board at the Faculty of Life Sciences, University of Wien
    Member of board of trustees of the foundation "Bündnis Mensch & Tier"
    Member of the advisory board of the Wageningen Institute of Animal Sciences
    Member of the external scientific advisory board of the Groningen Institute for Evolutionary Life Sciences
    Vice chairman of the scientific advisory board, University of Münster
    Member of the steering committee, CRC Transregio 212 "Individualisation in Evolution, Ecology, and Behaviour"
    Member of the academic advisory council of the Institute for Ornithology "Ornithological Station Helgoland"
    Member of the steering committee, CRC Transregio 58 "Fear, Anxiety, Anxiety Disorders"
    Honorary Member of the Ethological Society
    Member of the strategy committee science (Münster Alliance for Science)
    Liaison professor ("Vertrauensdozent") of the German National Academic Foundation
    Member of the Academic Senate, University of Münster
    Member of the steering committee "Münster Graduate School of Evolution" (MGSE)
    Member of the scientific board "Center for the Philosophy of Science", University of Münster
    Member of the academic advisory council for the PhD program BIOREC ("Biological Responses to Environmental Challenge")
    Editorial board: Hormones & Behavior
    Member of the senate commission on experimental research (DFG/German Research Foundation)
    Member of advisory board at the Institute for Theological Zoology (patroness: Jane Goodall)
    Member of the Research Council, University of Münster
    Dean, faculty of biology, University of Münster
    Vice Dean, faculty of biology, University of Münster
    Organization of first european conference on behavioural biology (ECBB) / foundation of a conference tradition
    President Ethologische Gesellschaft (Ethological Society)
    Vice-president Ethologische Gesellschaft (Ethological Society)
    Editorial board: Physiology & Behavior
    Advisory board German Zoological Society
    German delegate of the International Ethological Council
    Young German Scientist at the Dahlem conference on sexual selection
    Member of the Deutsche Zoologische Gesellschaft (German Zoological Society)
    Member of the Ethologische Gesellschaft (Ethological Society)

    Appointments

    Professorship (C4) behavioural biology at Münster university / accepted
    University of Münster, behavioural biology (C4) – accepted
    Professorship (C4) chair in behavioural ecology at Hamburg university / declined
    , behavioural ecology (C4) – rejected
    Professorship (C3) zoology / behavioural biology at Münster university / accepted
    University of Münster, zoology / behavioural biology (C3) – accepted

  • Projects

    • The Underrated Animal (Rowohlt) (since )
      Own Resources Project
    • RTG 2220 EvoPAD – RTG 2220: Evolutionary Processes in Adaptation and Disease ( – )
      Main DFG-Project Hosted at the University of Münster: DFG - Research Training Group | Project Number: GRK 2220/1
    • CRC TRR 212 A02 - Optimistic and pessimistic decision making under ambiguity: causes and consequences for niche choice and niche conformance ( – )
      Subproject in DFG-Joint Project Hosted outside the University of Münster: DFG - Collaborative Research Centre | Project Number: TRR 212/1
    • CRC TRR 212 B01 - Social niche conformance and social niche transition during adolescence and beyond: effects on biobehavioural profile and fitness ( – )
      Subproject in DFG-Joint Project Hosted outside the University of Münster: DFG - Collaborative Research Centre | Project Number: TRR 212/1
    • CRC TRR 212 - S: Technology Service Platforms ( – )
      Subproject in DFG-Joint Project Hosted outside the University of Münster: DFG - Collaborative Research Centre | Project Number: TRR 212/1
    • The Individual in the Focus of Life Sciences ( – )
      Internally at the University of Münster Funded Project: Uni Münster-internal funding - Topical Programs
    • The Limits of Adaptation (Rowohlt) (since )
      Own Resources Project
    • CRC TRR 58 - A01: Life history, serotonin transporter genotype and anxiety-like behaviour: testing the "coping-with-challenge hypothesis" ( – )
      Subproject in DFG-Joint Project Hosted at the University of Münster: DFG - Collaborative Research Centre | Project Number: TRR 58/4
    • Much Like Us - What Science Reveals about the Thoughts, Feelings, and Behaviour of Animals (Rowohlt) (since )
      Individual Granted Project: Stifterverband für die Deutsche Wissenschaft e.V., Klaus Tschira Stiftung gGmbH
    • MGSE – Münster Graduate School of Evolution - Unterstützung des Evolution Think Tank ( – )
      Individual Granted Project: Santander Consumer Bank AG
    • FOR 1232 TP06 - The social modulation of behavioural profile and stress responsiveness during adolescence: an adaptive mechanisms? ( – )
      Subproject in DFG-Joint Project Hosted outside the University of Münster: DFG - Research Unit | Project Number: SA 389/11-2; 597932
    • FOR 1232 TPZ - Administration of the Research Unit and central platforms for "Genetic paternity determination" and "Endocrinological determination" ( – )
      Subproject in DFG-Joint Project Hosted outside the University of Münster: DFG - Research Unit | Project Number: KA 1546/9-1
    • CRC TRR 58 - A01: Life history, serotonergic system, and anxiety-like behaviour: testing the mismatch hypothesis ( – )
      Subproject in DFG-Joint Project Hosted at the University of Münster: DFG - Collaborative Research Centre | Project Number: TRR58/3
    • The Biology of Individuality (since )
      Own Resources Project
    • CRC TRR 58 - A01: The Influence of early life stress on anxiety-like behavior: the significance of the preand postnatal phase for gene x environment interactions and the modifiability of its outcome later in life ( – )
      Subproject in DFG-Joint Project Hosted at the University of Münster: DFG - Collaborative Research Centre | Project Number: TRR58/1
    • FOR 1232 TPZ - Administration of the Research Unit and central platforms for "Genetic paternity determination" and "Endocrinological determination" ( – )
      Subproject in DFG-Joint Project Hosted outside the University of Münster: DFG - Research Unit | Project Number: KA 1546/7-1:1
    • FOR 1232 TP06 - Social modulation of behavioural profile and stress responsiveness during adolescence: mechanisms and function. ( – )
      Subproject in DFG-Joint Project Hosted outside the University of Münster: DFG - Research Unit | Project Number: SA 389/11-1:1
    • Gene x Environment Interactions in the Control of Aggressive Behaviour ( – )
      Individual Granted Project: DFG - Individual Grants Programme | Project Number: 551821
    • Gene x Environment Interaction and the Alzheimer’s Disease ( – )
      Own Resources Project
    • Die ethologische Charakterisierung genmanipulierter Labormäuse: Eine Basis zur molekulargenetischen Analyse komplexen Verhaltens ( – )
      Individual Granted Project: DFG - Individual Grants Programme
    • Interdisciplinary Discourse with the Humanities (since )
      Own Resources Project
    • Evolution and Development of Social Behaviour (since )
      Own Resources Project
    • Stress, Stress Avoidance and Animal Welfare (since )
      Own Resources Project

  • Publications

    • , , , , and . . “Shaped by you: The effect of social partner on cortisol and behavior during adolescence in a female rodent.” Ethology, № 130 e13414. doi: 10.1111/eth.13414.
    • , , , and . . “Social niche shapes social behavior and cortisol concentrations during adolescence in female guinea pigs.” Hormones and Behavior, № 162 (105539) doi: 10.1016/j.yhbeh.2024.105539.
    • , , and . . “The guinea pig.” in The UFAW handbook on the care and management of laboratory and other research animals, edited by H Golledge and C Richardson. Hoboken, NJ, USA: Wiley-Blackwell.

    • , , , , and . . “Behavioral lateralization of mice varying in serotonin transporter genotype.” Frontiers in Behavioral Neuroscience, № 16 1095567. doi: 10.3389/fnbeh.2022.1095567.
    • , , , , , , , and . . “Effects of castration and sterilization on cortisol responsiveness – a case study in male guinea pigs.” Frontiers in Veterinary Science, № 9 (1093157) doi: 10.3389/fvets.2022.1093157.
    • , , , , , and . . “The power of a touch: Regular touchscreen training but not its termination affects hormones and behavior in mice.” Frontiers in Behavioral Neuroscience, № 17 doi: 10.3389/fnbeh.2023.1112780.
    • , , , , and . . “Conditional on the social environment? Roots of repeatability in hormone concentrations of male guinea pigs.” Hormones and Behavior, № 155 105423.
    • , , , , , , and . . “Structural enrichment for laboratory mice: exploring the effects of novelty and complexity.” Frontiers in Veterinary Science, № 10 1207332. doi: 10.3389/fvets.2023.1207332.

    • . . Much Like Us: What Science Reveals about the Thoughts, Feelings, and Behaviour of Animals, Cambridge: Cambridge University Press.
    • , , and . . Das Unterschätzte Tier: Was wir heute über Tiere wissen und im Umgang mit ihnen besser machen müssen,, edited by Norbert Sachser, Niklas Kästner and Tobias Zimmermann. Reinbek: Rowohlt Taschenbuch Verlag.
    • , , , , and . . “When left is right: The effects of paw preference training on behaviour in mice.” Behavioural Brain Research, № 430 (113929)
    • , , , , , , , , , , , and . . “Do multiple experimenters improve the reproducibility of animal studies?” PLoS Biology, № 20(3) (e3001564) doi: 10.1371/journal.pbio.3001564.
    • , , , , and . . “Repeatability of endocrine traits and dominance rank in female guinea pigs.” Frontiers in Zoology, № 19 (1): 4. doi: 10.1186/s12983-021-00449-2.
    • , , , , , , and . . “The impact of varying food availability on gene expression in the liver: Testing the Match-Mismatch hypothesis.” Frontiers in Nutrition, № 9 (910762)
    • , , , , , , , and . . “Once an Optimist, Always an Optimist? Studying Cognitive Judgment Bias in Mice.” Behavioral Ecology, № 33: 775–788.
    • , , , , , , , and . . “Transcriptional profiles in the mouse amygdala after a cognitive judgment bias test largely depend on the genotype.” Frontiers in Molecular Neuroscience, № 15 1025389. doi: 10.3389/fnmol.2022.1025389.

    • , , , , and . . “The impact of varying food availability on health and welfare in mice: Testing the Match-Mismatch hypothesis.” Physiology and Behavior, № 228 (113193) doi: 10.1016/j.physbeh.2020.113193.
    • , , , , , and . . “Individuality meets plasticity: Endocrine phenotypes across male dominance rank acquisition in guinea pigs living in a complex social environment.” Hormones and Behavior, № 131 104967. doi: 10.1016/j.yhbeh.2021.104967.
    • , , , , , and . . “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.
    • , , , , , , and . . “Not all mice are alike: Mixed-strain housing alters social behaviour.” Physiology and Behavior, № 228 (113220) doi: 10.1016/j.physbeh.2020.113220.
    • , , , , , , , , , and . . “Individuality, as well as genetic background, affects syntactical features of courtship songs in male mice.” Animal Behaviour, № 180: 179–196.

    • , , , , , , , and . . “The effects of different feeding routines on welfare in laboratory mice.” Frontiers in Veterinary Science, № 6: 479.
    • , , , , , and . . “Improving reproducibility in animal research by splitting the study population into several ‘mini-experiments’.” Scientific Reports, № 10 (16579) doi: 10.1038/s41598-020-73503-4.
    • , , , , , and . . “Adaptive reshaping of the hormonal phenotype after social niche transition in adulthood.” Proceedings of the Royal Society B: Biological Sciences, № 287 20200667. doi: 10.1098/rspb.2020.0667.
    • , , , and . . “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.
    • , , , , , and . . “Effects of different social experiences on emotional state in mice.” Scientific Reports, № 10 (15255) doi: 10.1038/s41598-020-71994-9.

    • , , , , , , , and . . “High reproductive success despite queuing – Socio-sexual development of males in a complex social environment.” Frontiers in Psychology, № 10 2810. doi: 10.3389/fpsyg.2019.02810.
    • , , , , and . . “Differential effects of serotonin transporter genotype on anxiety-like behavior and cognitive judgment bias in mice.” Frontiers in Behavioral Neuroscience, № 13: 263.
    • , , , , , and . . “Heterogenising study samples across testing time improves reproducibility of behavioural data.” Scientific Reports, № 9: 8247.
    • , , , , , and . . “Have I been here before? Effects of repeated testing and age on the results of behavioural tests.” Behavioural Brain Research, № 367: 143–148.
    • , , , , , , , and . . “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.
    • , , , , , , , and . . “Brain serotonin deficiency affects female aggression.” Scientific Reports, № 9 (1366)
    • , , , , , , and . . “Technology or ecology? New tools to assess cognitive judgement bias in mice.” Behavioural Brain Research, № 362: 279–287.

    • , , , , , and . . “Varying social experiences in adulthood do not differentially affect anxiety-like behavior but stress hormone levels.” Frontiers in Behavioral Neuroscience, № 12: 72.
    • , , and . . “The adaptive shaping of social behavioural phenotypes during adolescence.” Biology Letters, № 14 doi: 10.1098/rsbl.2018.0536.
    • . . Der Mensch im Tier: Warum Tiere uns im Denken, Fühlen und Verhalten oft so ähnlich sind, Reinbek: Rowohlt Taschenbuch Verlag.
    • , , and . . “Artgerecht/tiergerecht.” in Handbuch Tierethik, edited by JS Ach and D Borchers. Stuttgart: J.B. Metzler Verlag.
    • , , and . . “Emotionen.” in Handbuch Tierethik, edited by JS Ach and D Borchers. Stuttgart: J.B. Metzler Verlag.
    • , , , , , , and . “Evidence-based severity assessment: Impact of repeated versus single open-field testing on welfare in C57BL/6J mice.” Behavioural Brain Research, № 336: 268. doi: 10.1016/j.bbr.2017.08.029.

    • , , , , and . . “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.
    • , , , and . . “Adaptive shaping of the behavioural and neuroendocrine phenotype during adolescence.” Proceedings of the Royal Society B: Biological Sciences, № 284 (1849) doi: 10.1098/rspb.2016.2784.
    • , , , , , and . “Specific manipulation or systemic impairment? Behavioural changes of three-spined sticklebacks (Gasterosteus aculeatus) infected with the tapeworm Schistocephalus solidus.” Behavioral Ecology and Sociobiology, № 71 (2) doi: 10.1007/s00265-017-2265-9.
    • , , , , and . . “What a difference a day makes - female behaviour is less predictable near ovulation.” Royal Society Open Science, № 4 doi: 10.1098/rsos.160998.
    • , , , and . “Stress responsiveness and anxiety-like behavior: The early social environment differentially shapes stability over time in a small rodent.” Hormones and Behavior, № 90 (null): 90–97. doi: 10.1016/j.yhbeh.2017.02.010.
    • , , and . . “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.
    • , , , , and . “Impact of varying social experiences during life history on behaviour, gene expression, and vasopressin receptor gene methylation in mice.” Scientific Reports, № 7 (1) doi: 10.1038/s41598-017-09292-0.

    • , , , and . “Looking on the bright side of bias - validation of an affective bias test for laboratory mice.” Applied Animal Behaviour Sciences, № 181
    • , , , , , , and . . “Impact of life history on fear memory and extinction.” Frontiers in Behavioural Neuroscience, № 10: 185. doi: 10.3389/fnbeh.2016.00185.
    • , , , , , , and . . “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 (97) doi: 10.3389/fnbeh.2016.00097.
    • , , , , , , , , and . . “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.
    • , , , , and . . “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.

    • , , , , and . . “New perspectives in behavioural development: adaptive shaping of behaviour over a lifetime?” Frontiers in Zoology, № 12(Suupl 1): 4. doi: 10.1186/1742-9994-12-S1-S1.
    • , , and . . “Domestication affects the structure, development and stability of biobehavioural profiles.” Frontiers in Zoology, № 12 (Suppl1): 19
    • , , , , , , , , , and . . “Benefits of adversity?! How life history affects the behavioral profile of mice varying in serotonin transporter genotype.” Frontiers in Behavioral Neuroscience, № 9 (47) doi: 10.3389/fnbeh.2015.00047.
    • , , , and . “Stability and change: Stress responses and the shaping of behavioural phenotypes over the life span.” Frontiers in Zoology, № 12 (Suppl1)
    • , , , , , and . “Benefits of a "vulnerability gene"? A study in serotonin transporter knockout mice.” Behavioural Brain Research, № 283 doi: 10.1016/j.bbr.2015.01.031.
    • , , , and . “Social instability during pregnabcy and lactation alters female wild cavy offsprings' endocrine status and behaviour later in life.” Behaviour, № 152
    • , , , , , , , , , and . “Benefits of adversity?! How life history affects the behavioral profile of mice vaying in serotonin transporter genotype.” Frontiers in Behavioral Neuroscience, № 9: 47.
    • , , , , , , , , and . “Association between exploratory activity and social individuality in genetically identical mice living in the same enriched environment.” Neuroscience, № 309 (null): 140–152. doi: 10.1016/j.neuroscience.2015.05.027.
    • , and . . “Animals can tell us more.” Behavioral and Brain Sciences, № 38: 44–45.

    • , , , and . . “Effects of domestication on biobehavioural profiles: a comparison of domestic guinea pigs and wild cavies from early to late adolescence.” Frontiers in Zoology, № 11

    • , , and . . “Behavioural profiles are shaped by social experience: when, how and why.” Philosophical Transactions of the Royal Society B: Biological Sciences, № 368 (1618): 20120344. doi: 10.1098/rstb.2012.0344.
    • , , , , , , , , , , and . . “Effect of acute stressor and serotonin transporter genotype on amygdala first wave transcriptome in mice.” PloS one, № 8 ((3)): e58880.
    • , , , , , and . . “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.
    • , , , , , , , , and . . “Emergence of individuality in genetically identical mice.” Science, № 340 (6133): 756–9. doi: 10.1126/science.1235294.
    • , , , , , , and . . “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.
    • , , , , , and . . “To attack, or not to attack? The role of serotonin transporter genotype in the display of maternal aggression.” Behavioural Brain Research, № 242: 135–41. doi: 10.1016/j.bbr.2012.12.045.

    • , , , , , and . . “The winner and loser effect, serotonin transporter genotype, and the display of offensive aggression.” Physiology and Behavior, № 103 (5): 565–574. doi: 10.1016/j.physbeh.2011.04.021.
    • , , , , , , , , , , , , , , , and . . “Effect of population heterogenization on the reproducibility of mouse behavior: a multi-laboratory study.” PloS one, № 6 (1): e16461. doi: 10.1371/journal.pone.0016461.
    • , , , , , , and . . “Social defeat: impact on fear extinction and amygdala-prefrontal cortical theta synchrony in 5-HTT deficient mice.” PloS one, № 6 (7): e22600. doi: 10.1371/journal.pone.0022600.
    • , and . . “Diversity of Social and Mating Systems in Cavies: a Review.” Journal of Mammalogy, № 92 (1): 39–53. doi: 10.1644/09-MAMM-S-405.1.
    • , , , , , , , , and . . “Serotonin Transporter Knockout and Repeated Social Defeat Stress: Impact on Neuronal Morphology and Plasticity in Limbic Brain Areas.” Behavioural Brain Research, № 220 (1): 42–54. doi: 10.1016/j.bbr.2011.01.011.
    • , , and . . “Adaptive Modulation of Behavioural Profiles by Social Stress During Early Phase of Life and Adolescence.” Neuroscience and Biobehavioral Reviews, № 35 (7): 1518–1533. doi: 10.1016/j.neubiorev.2010.09.002.
    • , , , , , , , and . . “Preventive and therapeutic types of environmental enrichment counteract beta amyloid pathology by different molecular mechanisms.” Neurobiology of Disease, № 42 (3): 530–538.
    • , , , , and . . “Inhibiting influence of testosterone on stress responsiveness during adolescence.” Hormones and Behavior, № 60 (5): 691–698.
    • , , and . . “Social interaction decreases stress responsiveness during adolescence.” Psychoneuroendocrinology, № 36 (9): 1370–7. doi: 10.1016/j.psyneuen.2011.03.010.
    • , , and . . “The social environment during pregnancy and lactation shapes the behavioral and hormonal profile of male offspring in wild cavies.” Developmental Psychobiology, № 53 (6): 575–84. doi: 10.1002/dev.20585.
    • , , and . . “"Personality" in laboratory mice used for biomedical research: a way of understanding variability?” Developmental Psychobiology, № 53 (6): 624–30. doi: 10.1002/dev.20553.
    • , , , , , , , and . . “Living in a dangerous world decreases maternal care: a study in serotonin transporter knockout mice.” Hormones and Behavior, № 60 (4): 397–407. doi: 10.1016/j.yhbeh.2011.07.006.
    • , , , , , , , , , , , , and . . “Altered phosphorylation but no neurodegeneration in a mouse model of tau hyperphosphorylation.” Neurobiology of Aging, № 32 (6): 991–1006. doi: 10.1016/j.neurobiolaging.2009.06.007.
    • , , , , , , and . . “Away game or home match: The influence of venue and serotonin transporter genotype on the display of offensive aggression.” Behavioural Brain Research, № 219 (2): 291–301. doi: 10.1016/j.bbr.2011.01.029.

    • , , and . “The guinea pig.” in The care and management of laboratory and other research animals, edited by R Hubrecht and J. Kirkwood. Hoboken, NJ, USA: Wiley-Blackwell. doi: 10.1002/9781444318777.ch27.
    • , and . . “Consequences of Serotonin Transporter Genotype and Early Adversity on Behavioral Profile – Pathology or Adaptation?” Frontiers in Neuroscience, № 4 (1): 187–187. doi: 10.3389/fnins.2010.00187.
    • , and . . “Meerschweinchen als Sozialstrategen.” SPEKTRUM DER WISSENSCHAFT: 56–63.
    • , and . “The social modulation of behavioural development.” in Animal Behaviour: Evolution and Mechanisms, edited by Kappeler P.. Düsseldorf: Springer VDI Verlag. doi: 10.1007/978-3-642-02624-9_17.
    • , and . “Sex-Specific Effects of Early Social Stress in Mammals: A Study in Guinea Pigs.” in Encyclopedia of Stress, Vol. null , edited by G Fink. Amsterdam: Elsevier. doi: 10.1016/B978-012373947-6.00478-5.
    • , , , , , , , and . . “Social Status and Day-to-Day Behaviour of Male Serotonin Transporter Knockout Mice.” Behavioural Brain Research, № 211 (2): 220–228. doi: 10.1016/j.bbr.2010.03.035.
    • , , , , , , , and . . “Modulation of Behavioural Profile and Stress Response by 5-HTT Genotype and Social Experience in Adulthood.” Behavioural Brain Research, № 207 (1): 21–29. doi: 10.1016/j.bbr.2009.09.033.
    • , , , , , and . . “Reduction of Cerebral Oxidative Stress Following Environmental Enrichment in Mice with Alzheimer-Like Pathology.” Brain Pathology, № 20 (1): 166–175. doi: 10.1111/j.1750-3639.2008.00257.x.
    • , , and . . “Social Interaction, Testosterone, and Stress Responsiveness During Adolescence.” Physiology and Behavior, № 99 (1): 40–46. doi: 10.1016/j.physbeh.2009.10.005.

    • , , , , , and . . “An Unstable Social Environment Affects Sex Ratio in Guinea Pigs: An Adaptive Maternal Effect?” Behaviour, № 146 (11): 1513–1529. doi: 10.1163/156853909X445579.
    • , , , , , , , , , , , and . . “Altered Phosphorylation but no Neurodegeneration in a Mouse Model of Tau Hyperphosphorylation.” Neurobiology of Aging doi: 10.1016/j.neurobiolaging.2009.06.007.
    • , , , , , and . . “Living in a dangerous world: the shaping of behavioral profile by early environment and 5-HTT genotype.” Frontiers in Behavioral Neuroscience, № 3 (26) doi: 10.3389/neuro.08.026.2009.
    • , , , , , , , , , , , , , , and . . “The Role of Granulocyte-Colony Stimulating Factor (G-CSF) in the Healthy Brain: A Characterization of G-CSF-Deficient Mice.” Journal of Neuroscience, № 29 (37): 11572–11581. doi: 10.1523/JNEUROSCI.0453-09.2009.
    • , , , , , , , and . . “Transgenic Alzheimer Mice in a Semi-Naturalistic Environment: More Plaques, Yet Not Compromised in Daily Life.” Behavioural Brain Research, № 201 (1): 99–102. doi: 10.1016/j.bbr.2009.01.037.
    • , , , , , , and . . “Environmental Enrichment Enhances Cellular Plasticity in Transgenic Mice with Alzheimer-like Pathology.” Experimental Neurology, № 216 (1): 184–192. doi: 10.1016/j.expneurol.2008.11.027.
    • , , , , , , , , , and . . “Levodopa Ameliorates Learning and Memory Deficits in a Murine Model of Alzheimer's Disease.” Neurobiology of Aging, № 30 (8): 1192–1204. doi: 10.1016/j.neurobiolaging.2007.11.010.
    • , , , , , and . . “Preventive and therapeutic environmental enrichment counteract A beta pathology by different molecular mechanisms.” Acta Neuropathologica, № 118 (3): 444–444.
    • , , and . . “Social Buffering of the Stress Response: Diversity, Mechanisms, and Functions.” Frontiers in Neuroendocrinology, № 30 (4): 470–482. doi: 10.1016/j.yfrne.2009.06.001.
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