Mundorf A, Matsui H, Ocklenburg S, Freund N
Analyzing Turning Behavior after Repeated Lithium, Ketamine, or NaCl Injection and Chronic Stress Exposure in Mice. 
Symmetry. 2022;12(11): 2352

Abraham M, Mundorf A, Bordman K, Freund N
Unraveling the mystery of white matter in depression: A translational perspective on recent advances.
Brain Behav. 2022 Jul;12(7): e2629

Mundorf A, Bölükbas I, Freund N
Maternal separation: Does it hold the potential to model consequences of postpartum depression?
Dev Psychobiol. 2022; 64 (1): e22219


Beyer DKE, Freund N
Neurobiologie Bipolarer Störungen.
In Assion HJ, Brieger P, Hautzinger M, Bauer M (Hrsg.). Bipolare Störungen: Das Praxishandbuch. Kohlhammer Verlag, 2021

Beyer DKE, Horn L, Klinker N, Freund N,
Risky decision-making following prefrontal D1 receptor manipulation.
Transl Neurosci. 2021; 12(1): 432-443

Mundorf A, Koch J, Kubitza N, Wagner SC, Schmidt M, Gass P, Freund N
Morc1 as a potential new target gene in mood regulation: when and where to find in the brain.
Exp Brain Res. 2021; 239(10): 2999-3005

Mundorf A, Kubitza N, Hünten K, Matsui H, Juckel G, Ocklenburg S, Freund N
Maternal immune activation leads to atypical turning asymmetry and reduced DRD2 mRNA expression in a rat model of schizophrenia.
Behav Brain Res. 2021; 414:113504

Manns M, El Basbasse Y, Freund N*, Ocklenburg S*
Paw preferences in mice and rats: Meta-analysis.
Neurosci Biobehav Rev. 2021; 127:593-606 (* shared last authorship)

Beyer DKE, Mattukat A, Freund N
Prefrontal dopamine D1 receptor manipulation influences anxiety behavior and induces neurinflammation within the hippocampus.
Int J Bipolar Disord. 2021; 9(1):1-10

Juckel G, Manitz M-P, Freund N, Gatermann S
Impact of Poly I: C induced maternal immune activation on offspring’s gut microbiome diversity- Implications for schizophrenia.
Prog Neuropsychopharmacol Biol Psychiatry. 2021; 110:110306

Mundorf A, Schmitz J, Hünten K, Fraenz C, Schlüter C, Genc E, Ocklenburg S, Freund N
MORC1 methylation and BDI are associated with microstructural features of the hippocampus and medial prefrontal cortex.
J Affect Disord.2021; 282:91-97

Wegrzyn D, Freund N, Faissner A, Juckel G
Poly I: C Activated Microglia Disrupt Perineuronal Nets and Modulate Synaptic Balance in Primary Hippocampal Neurons in vitro.
Front Synaptic Neurosci. 2021; 13:9


Bölükbas I, Mundorf A, Freund N
Maternal separation in rats induces neurobiological and behavioral change changes on the maternal side.
Sci Rep. 2020; 10:22431

Mundorf A, Matsui H, Ocklenburg S, Freund N
Asymmetry of turning behavior in rats is modulated by early life stress.
Behav Brain Res. 2020 Jul; 13;112807

Wegrzyn D, Manitz MP, Kostka M, Freund N, Juckel G, Faissner A
Poly I:C induced maternal immune challenge reduces perineuronal net area and raises spontaneous network activity of hippocampal neurons in vitro.
Eur J Neurosci. 2020 Aug 5. doi: 10.1111

Mundorf, A, Rommel, S, Verheyen, M, Mergia, E, Peters, M, Freund, N
Cigarette smoke exposure has region-specific effects on GDAP1 expression in mouse hippocampus.
Psychiatry Res. 2020 July;289:112979

Esshili A, Manitz MP, Freund N, Juckel G
Induction of inducible nitric oxide synthase expression in activated microglia and astrocytes following pre- and postnatal immune challenge in an animal model of schizophrenia.
Eur Neuropsychopharmacol. 2020 Jun;35:100-110.


Mundorf, A., Knorr, A., Mezö, C., Klein, C., Beyer, D.K., Fallgatter, A.J., Schwarz, M., Freund, N.
Lithium and glutamine synthetase: Protective effects following stress.
Psychiatry Res. 2019 Aug;281:112544

Freund, N., Juckel, G.
Bipolar Disorder: Its Etiology and How to Model in Rodents.
In: Psychiatric Disorder., Methods Mol Biol. Springer International Publishing, 2019

Mundorf A., Freund N. 
Early life stress and DNA Methylation 
In: The DNA, RNA, and Histone Methylomes., RNA Technologies. Springer International Publishing, 2019


Freund N, Jordan CJ, Lukkes JL, Norman KJ, Andersen SL
Juvenile exposure to methylphenidate and guanfacine in rats: effects on early delay discounting and later cocaine-taking behavior.
Psychopharmacology (Berl). 2018 Nov

Mundorf A.*, Schmitz J.*, Güntürkün O., Freund N.⁠⁠*, Ocklenburg S.*
Methylation of MORC1: A possible biomarker for depression?
J Psychiatr Res. 2018 Aug;103:208-211
*joint first/last author


Beyer DKE & Freund N
Animal models for bipolar disorder: from bedside to the cage.
International Journal of Bipolar Disorders 2017 Oct 13;5(1):35

Lukkes JL, Meda S, Thompson BS, Freund N, Andersen SL
Early life stress and later peer distress on depressive behavior in adolescent female rats: Effects of a novel intervention on GABA and D2 receptors.
Behav Brain Res. 2017 14;330:37-45. 


Lukkes JL, Sonntag KC, Freund N , Thompson BS, Meda S, Andersen, SL
Preventative treatment in an animal model of ADHD: Behavioral and biochemical effects of methylphenidate and its interactions with ovarian hormones in female rats.
European Neuropsychopharmacology, 2016; 26(9): 1496-1506

Freund N, Thompson BS, Sonntag K, Medea S, Andersen SL
When the party is over: depressive-like states following termination of cortical D1 receptor overexpression.
Psychopharmacology 2016; 233(7):1191-1201

Lukkes JL, Thompson BS, Freund N, Andersen SL
The developmental inter-relationships between activity, novelty preferences, and delay disounting in male and female rats.
Dev Psychobiol. 2016; 58(2): 231-242

Freund N*, Valencia-Alfonso CE*, Kirsch J, Brodmann K, Manns M, Güntürkün O
Asymmetric top-down modulation of ascending visual pathways in pigeons.
Neuropsychologia 2016; 38:37-47


Freund N, Thompson BS, Norman KJ, Einhorn P, Andersen SL
Developmental emergence of an obsessive-compulsive phenotype and binge behavior in rats.
Psychopharmacology 2015; 232 (17), 3173-3181


Freund, N, MacGillivray HT, Thompson BS, Lukkes JL, Stanis JJ, Brenhousen HC,
Andersen SL
Sex-dependent changes in ADHD-like behaviors in juvenile rats following cortical dopamine depletion.
Behavioural brain research 2014; 270, 357-363

Puig MV, Rose J, Schmidt R, Freund N
Dopamine modulation of learning and memory in the prefrontal cortex: insights from studies in primates, rodents, and birds.
Front Neural Circuits 2014; 8:93

Sonntag KC, Brenhouse HC, Freund N, Thompson BS, Puhl M, Andersen SL
Viral over-expression of D1 dopamine receptors in the prefrontal cortex increase high-risk behaviors in adults: comparison with adolescents.
Psychopharmacology 2014; 231(8):1615-26.


N Freund, BS Thompson, J Denormandie, K Vaccarro, SL Andersen
Windows of vulnerability: maternal separation, age, and fluoxetine on adolescent depressive-like behavior in rats
Neuroscience 2013; 249, 88-97

Ströckens F*, Freund N*, Manns M, Ocklenburg S, Güntürkün O
Visual asymmetries and the ascending thalamofugal pathway in pigeons.
Brain Struct Funct. 2013; 218:1197-1209


Leussis MP, Freund N, Brenhouse HC, Thompson BS, Andersen
Depressive-like behavior in adolescent rats after maternal separation: Sex differences and controllability.
Dev Neurosci. 2012; 34(2-3):210-217

Hirnstein M, Freund N, Hausmann M
Sex differences in gender stereotype threat? Stereotype threat paradoxically enhances verbal fluency performance in men.
Z Psychol. 2012; 220: 70-77


Freund N, Manns M, Rose J
A method for the evaluation of intracranial tetrodotoxin injections.
J Neurosci Methods. 2010; 186:25-28


Manns M, Freund N, Güntürkün O
Breaking the balance: Ocular BDNF-Injections Induce Visual Asymmetry in Pigeons.
Dev Neurobiol. 2008, 68: 1123-1134

Manns M, Freund N, Güntürkün O
Development of the Diencephalic Relay Structures of the Thalamofugal System in Pigeons.
Brain Res Bull. 2008, 75: 424-427


Manns M, Freund N, Patzke N, Güntürkün O
Organization of telencephalotectal projections in pigeons: Impact for lateralized top-down control.
Neuroscience. 2007 ; 144(2):645-53


Kalenscher T, Ohmann T, Windmann S, Freund N, Güntürkün O
Single forebrain neurons represent interval timing and reward amount during response scheduling.
Eur J Neurosci. 2006; 24(10):2923-31


*equally contributed