Publications
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Tracking transient changes in the intrinsic neural frequency architecture: Oxytocin facilitates non-harmonic relationships between alpha and theta rhythms in the resting brain KU Leuven
Shifts in the peak frequencies of oscillatory neural rhythms have been put forward as a principal mechanism by which cross-frequency coupling and decoupling is implemented in the brain. This notion is based on the mathematical reality that neural oscillations can only fully synchronize when their peak frequencies form harmonic 2:1 relationships (e.g., f2=f1/2). Non-harmonic cross-frequency relationships, on the other hand (based on the ...
Chronic oxytocin improves neural decoupling at rest in children with autism: an exploratory RCT KU Leuven
BACKGROUND: Shifts in peak frequencies of oscillatory neural rhythms are put forward as a principal mechanism by which cross-frequency coupling/decoupling is implemented in the brain. During active neural processing, functional integration is facilitated through transitory formations of "harmonic" cross-frequency couplings, whereas "nonharmonic" decoupling among neural oscillatory rhythms is postulated to characterize the resting, default state ...
Tracking transient changes in the neural frequency architecture: harmonic relationships between theta and alpha peaks facilitate cognitive performance KU Leuven
The synchronisation between neural oscillations at different frequencies has been proposed as a core mechanism for the coordination and integration of neural systems at different spatio-temporal scales. Since neural oscillations of different frequencies can only fully synchronize when their ‘peak’ frequencies form harmonic relationships (e.g. f2 = f1/2), the present study explored whether the transient occurrence of harmonic cross-frequency ...
The breathing brain: The potential of neural oscillations for the understanding of respiratory perception in health and disease KU Leuven
Dyspnea or breathlessness is a symptom occurring in multiple acute and chronic illnesses, however, the understanding of the neural mechanisms underlying its subjective experience is limited. In this topical review, we propose neural oscillatory dynamics and cross-frequency coupling as viable candidates for a neural mechanism underlying respiratory perception, and a technique warranting more attention in respiration research. With the evidence ...
Band-averaged variance prediction in hybrid deterministicstatistical-energy analysis of vibro-acoustic systems KU Leuven
© Proceedings of ISMA 2018 - International Conference on Noise and Vibration Engineering and USD 2018 - International Conference on Uncertainty in Structural Dynamics. All rights reserved. The hybrid deterministic - statistical energy analysis method is a versatile framework for vibro-acoustic analysis. Stiff system components are modelled deterministically, while the wave fields in flexible components are modelled as diffuse. In this paper, the ...
Electrophysiological measures reveal the role of anterior cingulate cortex in learning from unreliable feedback Ghent University
Although a growing number of studies have investigated the neural mechanisms of reinforcement learning, it remains unclear how the brain responds to feedback that is unreliable. A recent theory proposes that the reward positivity (RewP) component of the event-related brain potential (ERP) and frontal midline theta (FMT) power reflect separate feedback-related processing functions of anterior cingulate cortex (ACC). In the present study, the ...
Magneto-mechanical actuation model for fin-based locomotion Ghent University
In this paper, we report the results from the analysis of a numerical model used for the design of a magnetic linear actuator with applications to fin-based locomotion. Most of the current robotic fish generate bending motion using rotary motors which implies at least one mechanical conversion of the motion. We seek a solution that directly bends the fin and, at the same time, is able to exploit the magneto-mechanical properties of the fin ...
Emotional intimacy and sexual well-being in aging European couples: a cross-cultural mediation analysis KU Leuven
Sexual health research tends to focus on problematic aspects of sexuality. This also applies to research on sexuality in older men and women, where attention has been primarily on the negative impact of aging. To contribute to the emerging interest in positive (successful) sexual aging, we aimed to: (1) further validate a recently developed 5-dimensional measure of sexual well-being (Štulhofer et al. in J Happiness Stud, 2018. ...
Cylindrical microstrip array antennas with slotted strip-framed patches KU Leuven
A cylindrical microstrip array antenna with 5 pairs of coupled slotted strip framed patches is analyzed. The patches are proximity-fed by a cylindrical microstrip line. In order to extract the reflection coefficient from the standing wave pattern on the microstrip line, its length is about 5 wavelengths. To the best of the authors' knowledge proximity-fed cylindrical arrays have not been analyzed before using a rigorous MOM model that takes into ...