A5034787419- EEG and Brain-Computer Interfaces
- Optical Imaging and Spectroscopy Techniques
- Visual perception and processing mechanisms
- Motor Control and Adaptation
- Non-Invasive Vital Sign Monitoring
- Action Observation and Synchronization
- Tactile and Sensory Interactions
- Functional Brain Connectivity Studies
German Primate Center
2022-2024
University of Göttingen
2022
Karlsruhe Institute of Technology
2013-2015
When interacting with technical systems, users experience mental workload. Particularly in multitasking scenarios (e.g. the car navigation system while driving) it is desired to not distract from their primary task. For such purposes, human-machine interfaces (HCIs) are desirable which continuously monitor users' workload and dynamically adapt behavior of interface measured While memory tasks have been shown illicit hemodynamic responses brain when averaging over multiple trials, a robust...
Functional near infrared spectroscopy (fNIRS) is rapidly gaining interest in both the Neuroscience, as well Brain-Computer-Interface (BCI) community. Despite these efforts, most single-trial analysis of fNIRS data focused on motor-imagery, or mental arithmetics. In this study, we investigate suitability different tasks, namely arithmetics, word generation and rotation for based BCIs. We provide first systematic comparison classification accuracies achieved a sample study. Data was collected...
Egocentric encoding is a well-known property of brain areas along the dorsal pathway. Different to previous experiments, which typically only demanded egocentric spatial processing during movement preparation, we designed task where two male rhesus monkeys memorized an on-the-object target position and then planned reach this after object re-occurred at variable location with potentially different size. We found allocentric (in addition egocentric) in stream planning areas, parietal region...
In this study, we show that both electroencephalograhy (EEG) and functional Near-Infrared Spectroscopy (fNIRS) can be used to discriminate between 5 levels of memory load. We induce load with the updating task, which is known robustly generate allows us define different Typical experiments only low high workload or up a maximum three classes. To best our knowledge, task has not been in combination brain activity measurements before. Here, accuracies 93% are achieved for binary classification...
Abstract Humans utilize egocentric and allocentric spatial information to guide goal-directed movements. Egocentric encoding is a well-known property of brain areas along the dorsal pathway. We ask if stream reach planning like parietal region (PRR) premotor cortex (PMd) also encode object-centered (allocentric) information. During two consecutive instructed delay periods, rhesus monkeys first memorized an object-relative target position then planned this after object re-occurred at variable...