About me

I am an experimental psychologist currently working as a postdoc at the Experimental Psychology department of Utrecht University. I received a PhD from Leipzig University on a project combining sentence production and working memory. During my postdoc at the Donders Institute for Brain, Cognition and Behaviour in Nijmegen I also became interested in non-invasive brain stimulation as a tool to investigate language processing in the healthy brain. However, I remain somewhat skeptical particulary towards the efficacy of transcranial direct current stimulation (tDCS), at least in the way it is currently being used, so part of my work also focuses on more methodological aspects of brain stimulation. After another postdoc at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, I returned to the Netherlands and am now working at Utrecht University in the group of Dennis Schutter. Here we focus on the role of the cerebellum in anger and aggression using mainly electrophysiological and brain stimulation methods. However, language is still close to my heart, so I'm trying to pursue some research on the side there as well.

Trivia: My favourite thing to do in R is plotting stuff; I have seen all episodes of Family Guy so many times that I can find a fitting quote for pretty much every daily situation (I hate Brian though); I believe the best album in the entire history of humankind is Turn On The Bright Lights by Interpol (people will argue about this, because Beatles and Stones and Led Zeppelin etc., but they probably weren't a teenager in the early 2000s); my cat has an Instagram.

Publications

Peer-reviewed publications

Kruithof, E., Klaus, J., & Schutter, D.J.L.G. (in press). The cerebellum in aggression: extending the cortico-limbic dual-route model of motivation and emotion. Motivation Science.

Klaus, J., & Schutter, D.J.L.G. (in press). Non-invasive brain stimulation of the cerebellum in emotion. In: Adamaszek, M., Manto, M., & Schutter, D.J.L.G. (Eds). The emotional cerebellum. Springer Nature.

Bongaerts, F.L.P., Schutter, D.J.L.G., & Klaus, J. (2022). Cerebellar tDCS does not modulate language processing performance in healthy individuals. Neuropsychologia, 169, 108206. https://doi.org/10.1016/j.neuropsychologia.2022.108206

Wolfs, E., Klaus, J., & Schutter, D.J.L.G. (2022). Cerebellar grey matter volumes in reactive aggression and impulsivity in healthy volunteers. The Cerebellum. https://doi.org/10.1007/s12311-021-01337-5

Klaus, J., & Schutter, D.J.L.G. (2021). Electrode montage-dependent intracranial variability in electric fields induced by cerebellar transcranial direct current stimulation. Scientific Reports, 11, 22183. https://doi.org/10.1038/s41598-021-01755-9

Ponce, G.V., Klaus, J., & Schutter, D.J.L.G. (2021). A brief history of cerebellar neurostimulation. The Cerebellum. https://doi.org/10.1007/s12311-021-01310-2

Klaus, J., & Schutter, D.J.L.G. (2021). Functional topography of anger and aggression in the human cerebellum. NeuroImage, 226, 117582. https://doi.org/10.1016/j.neuroimage.2020.117582

Klaus, J., & Hartwigsen, G. (2020). Failure to improve verbal fluency with transcranial direct current stimulation. Neuroscience, 449, 123-133. https://doi.org/10.1016/j.neuroscience.2020.09.003

Friehs, M.A., Klaus, J., Singh, T., Frings, C., & Hartwigsen, G. (2020). Perturbation of the right prefrontal cortex disrupts interference control. NeuroImage, 220. https://doi.org/10.1016/j.neuroimage.2020.117279

Piai, V., Klaus, J., & Rossetto, E. (2020). The lexical nature of alpha-beta oscillations in context-driven word production. Journal of Neurolinguistics, 55, 100905. https://doi.org/10.1016/j.jneuroling.2020.100905

Klaus, J., Schutter, D.J.L.G., & Piai, V. (2020). Transient perturbation of the left temporal cortex evokes plasticity-related reconfiguration of the lexical network. Human Brain Mapping, 41, 1061–1071. https://doi.org/10.1002/hbm.24860

Klaus, J., & Hartwigsen, G. (2019). Dissociating semantic and phonological contributions of the left inferior frontal gyrus to language production. Human Brain Mapping, 40, 3279-3287. https://doi.org/10.1002/hbm.24597

Klaus, J., & Schriefers, H. (2019). Bilingual word production. In: The Handbook of the Neuroscience of Multilingualism. Wiley-Blackwell. https://doi.org/10.1002/9781119387725.ch10

Klaus, J., & Schriefers, H. (2018). An investigation of the role of working memory capacity and naming speed in phonological advance planning in language production. The Mental Lexicon, 13, 159-185. https://doi.org/10.1075/ml.17020.kla

Klaus, J., & Schutter, D.J.L.G. (2018c). Putting focus on transcranial direct current stimulation in language production studies. PLoS ONE, 13, e0202730. http://doi.org/10.1371/journal.pone.0202730

Klaus, J., & Schutter, D.J.L.G. (2018b). The role of left dorsolateral prefrontal cortex in language processing. Neuroscience, 377, 197-205. https://doi.org/10.1016/j.neuroscience.2018.03.002

Klaus, J., & Schutter, D.J.L.G. (2018a). Non-invasive brain stimulation to investigate language production in healthy speakers: A meta-analysis. Brain and Cognition, 123, 10-22. http://doi.org/10.1016/j.bandc.2018.02.007

Klaus, J., Lemhöfer, K., & Schriefers, H. (2018). The second language interferes with picture naming in the first language: evidence for L2 activation during L1 production. Language, Cognition and Neuroscience, 33, 867-877. https://doi.org/10.1080/23273798.2018.1430837

Jescheniak, J.D., Kurtz, F., Schriefers, H., Günther, J., Klaus, J., and Mädebach, A. (2017). Words we do not say – Context effects on the phonological activation of lexical alternatives in speech production. Journal of Experimental Psychology: Human Perception and Performance, 43, 1194-1206. http://doi.org/10.1037/xhp0000352

Klaus, J., Mädebach, A., Oppermann, F., & Jescheniak, J. D. (2017). Planning sentences while doing other things at the same time: Effects of concurrent verbal and visuospatial working memory load. Quarterly Journal of Experimental Psychology, 70, 811-831. http://doi.org/10.1080/17470218.2016.1167926

Work in progress

File drawer

Klaus, J., & Schriefers, H. Measuring verbal working memory capacity: A reading span task for laboratory and web-based use. http://doi.org/10.17605/OSF.IO/NJ48X
This was an attempt to introduce an online version of the reading span task in English, Dutch, and German. It never made it to a published paper, but the task and clumsy analysis scripts can be found on Github.

Contact me

Feel free to drop me a line if you want to discuss my work, have a nice story to share or want to compliment me on my pretty cat.

jana at janaklaus dot com