Florian Krause

Florian Krause
Radboud University Medical Centre (Radboudumc) · Department of Cognitive Neuroscience

Ph.D.

About

17
Publications
3,478
Reads
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267
Citations
Introduction
I am a researcher in Cognitive Neuroscience. My main research interest is to investigate the interplay between high- and low-level cognitive functions and their neural implementation. I'm also the main developer of Expyriment, a Python library for designing and conducting timing-critical bahavioural and neuroimaging experiments.
Additional affiliations
September 2017 - September 2017
Radboud University Medical Centre (Radboudumc)
Position
  • PhD Student
September 2017 - present
Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour
Position
  • PostDoc Position
May 2014 - August 2017
Brain Innovation B.V.
Position
  • PostDoc Position
Education
October 2009 - October 2014
Radboud University
Field of study
October 2007 - October 2009
Radboud University
Field of study
  • Cognitive Neuroscience
October 2003 - October 2007
Universität Osnabrück
Field of study
  • Cognitive Science

Publications

Publications (17)
Article
Full-text available
A dominant hypothesis on how the brain processes numerical size proposes a spatial representation of numbers as positions on a 'mental number line'. An alternative hypothesis considers numbers as elements of a generalized representation of sensorimotor-related magnitude which is not obligatorily spatial. Here we show that individuals' relative use...
Article
The current study is a first exploration of real-time self-regulation of functional magnetic resonance imaging (fMRI) activation based on several different visual neurofeedback presentations. Six healthy participants were engaged in self-regulation of regional fMRI activation in the posterior parietal cortex (PPC), by performing a mental calculatio...
Article
Recent research has suggested that all types of size-related information are linked by a generalised system that codes for domain-independent magnitudes. This generalized system is further suggested to be acquired through everyday sensorimotor experiences with contingencies of size-related information in the real world. The aim of the present study...
Article
Full-text available
Expyriment is an open-source and platform-independent lightweight Python library for designing and conducting timing-critical behavioral and neuroimaging experiments. The major goal is to provide a well-structured Python library for script-based experiment development, with a high priority being the readability of the resulting program code. Expyri...
Article
Full-text available
The current study investigates an interaction between numbers and physical size (i.e. size congruity) in visual search. In three experiments, participants had to detect a physically large (or small) target item amongst physically small (or large) distractors in a search task comprising single- digit numbers. The relative numerical size of the digit...
Article
Full-text available
It has recently been shown that acute stress affects the allocation of neural resources between large-scale brain networks, and the balance between the executive control network and the salience network in particular. Maladaptation of this dynamic resource reallocation process is thought to play a major role in stress-related psychopathology, sugge...
Preprint
Emerging efforts toward prevention of stress-related mental disorders have created a need for unobtrusive real-life monitoring of stress-related symptoms. We used ecological momentary assessments (EMA) combined with wearable biosensors to investigate whether these can be used to detect periods of prolonged stress. During stressful high-stake exam (...
Preprint
A recent study tested the timing accuracy of several software solutions to implement computer-based experiments (Bridges et al. 2020). We discuss some conceptual and implementation issues in an attempt to bring more general awareness to what implementing timing-accurate experiments crucially relies on: (1) familiarizing oneself with the basic princ...
Preprint
It has recently been shown that acute stress affects the allocation of neural resources between large-scale brain networks, and the balance between the executive control network and the salience network in particular. Maladaptation of this dynamic resource reallocation process is thought to play a major role in stress-related psychopathology, sugge...
Article
Full-text available
Ischemic stroke of the middle cerebral artery (MCA), a major brain vessel that supplies the primary motor and premotor cortex, is one of the most common causes for severe upper limb impairment. Currently available motor rehabilitation training largely lacks satisfying efficacy with over 70% of stroke survivors showing residual upper limb dysfunctio...
Article
Full-text available
Head motion is a common problem in clinical as well as empirical (functional) magnetic resonance imaging applications, as it can lead to severe artefacts that reduce image quality. The scanned individuals themselves, however, are often not aware of their head motion. The current study explored whether providing subjects with this information using...
Preprint
Head motion is a common problem in clinical as well as empirical (functional) Magnetic Resonance Imaging applications, as it can lead to severe artefacts that reduce image quality. The scanned individuals themselves, however, are often not aware of their head motion. The current study explored whether providing subjects with this information using...
Article
Real-time functional magnetic resonance imaging (rt-fMRI) enables the update of various brain-activity measures during an ongoing experiment as soon as a new brain volume is acquired. However, the recorded Blood-oxygen-level dependent (BOLD) signal also contains physiological artifacts such as breathing and heartbeat, which potentially cause mislea...
Article
Full-text available
There is increasing interest in exploring the use of functional MRI neurofeedback (fMRI-NF) as a therapeutic technique for a range of neurological conditions such as stroke and Parkinson's disease (PD). One main therapeutic potential of fMRI-NF is to enhance volitional control of damaged or dysfunctional neural nodes and networks via a closed-loop...
Article
Full-text available
Evidence for an approximate analog system of numbers has been provided by the finding that the comparison of two numerals takes longer and is more error-prone if the semantic distance between the numbers becomes smaller (so-called numerical distance effect). Recent embodied theories suggest that analog number representations are based on previous s...

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