We welcome applications by visiting PhD students and PostDocs, and from students of the Radboud University who want to do projects in our lab. We can offer projects for
The projects in our lab mostly have a data-driven focus, such that a solid background in machine learning / artificial intelligence, math and good programming skills (Python) is a must for most projects. The individual project descriptions listed below may provide further details.
For applications from external Master or PhD students, the following factors must be taken into account:
To tickle your fancy, we have listed a few ready-to-go projects. Upon request, we can also tailor projects to your background and interest, given it has some relevance for our research goals.
*While most machine learning methods make the assumption that data is i.i.d., the brain signal features collected within a brain-computer interface (BCI) experiment and even over multiple BCI sessions typically change over time.
Context Left-hemispheric stroke can lead to different language deficits, which are a heavy burden both, for the individual and his/her social interaction, as well as for society. While spontaneous recovery in the first weeks after the stroke may reduce this so-called aphasia, many patients remain with different language problems also in the chronic phase.
For many machine learning methods in BCI, covariance matrices (more precisely: sample covariance matrix, SCM) are used to describe, how background brain signals auto-covary over time within a single measured EEG channel, and also how the signals of multiple channels cross-covary that are distributed over the scalp.
For many machine learning methods in BCI, covariance matrices (more precisely: sample covariance matrix, SCM) are used to describe, how background brain signals auto-covary over time within a single measured EEG channel, and also how the signals of multiple channels cross-covary that are distributed over the scalp.
Brain-computer interface (BCI) protocols, which make use of an event-related potential protocol typically provide different external stimuli to users and record, if one of these stimuli was perceived as an attended target stimulus, while the other stimuli should have been ignored as so-called non-target stimuli.
Context Left-hemispheric stroke can lead to different language deficits, which are a heavy burden both, for the individual and his/her social interaction, as well as for society. While spontaneous recovery in the first weeks after the stroke may reduce this so-called aphasia, many patients remain with different language problems also in the chronic phase.
Context Left-hemispheric stroke can lead to different language deficits, which are a heavy burden both, for the individual and his/her social interaction, as well as for society. While spontaneous recovery in the first weeks after the stroke may reduce this so-called aphasia, many patients remain with different language problems also in the chronic phase.
Context EEG signals in different individuals attending to the same narrative or movie clip have been found to be more similar to each other when they are attending this stimulus compared to when they are not.
The mne library offers a builtin plotting option for what is commonly referred to as topo plots. These plots take a single value per EEG/MEG channel and try to show the distribution across the scalp by proving a ventral (top -> down) view of the channel positions and interpolating values in between to create a quasi-head-shaped heatmap.
Electric and magnetic brain signals recordings (M/EEG, sEEG, LFP) are prone to a contamination by so-called artifacts, which do not have a neural origin but are caused by sensor problems, external electro-magnetic sources, or by bio-signals such as muscle activity.
Context A brain-computer interface (BCI) can use a multitude of control signals that are decodable from measured EEG. An example of such a control signal is the code-modulated visual evoked potential (c-VEP).
Context Typically, a brain-computer interface (BCI) still requires its user to move the eyes towards a target stimulus (e.g., a character) on a screen (e.g., in a standard matrix speller), specifically, they are gaze-dependent.
Context A brain-computer interface (BCI) can use a multitude of control signals that are decodable from measured EEG. One of the control signals that leads to accurate and fast BCI performance for instance for communication and control, is the code-modulated visual evoked potential (c-VEP).
Context Many experimental protocols for brain-computer interfaces (BCIs) present a sequence of stimuli to the user. By attending one type of stimulus and by ignoring other stimuli, so-called target and non-target responses are evoked, which can be measured by M/EEG and decoded by the BCI.
Problem Despite the well-established standards for EEG electrode layout like the 10-10 montage, EEG recordings obtained in different labs or across studies are not straightforward to compare. There are usually important differences between the datasets, but also within them.
Context Reinforcement learning (RL) methods interact with a system in closed loop in order to learn suitable action strategies. The goal of this interaction is to control the system, e.g., to bring it into a desired state.