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Error-related Negativity Relates to the Neural Processing of Brief Aversive Bodily Sensations KU Leuven
The error-related negativity (ERN) is an event-related potential occurring in the electroencephalogram (EEG) within 100 ms after the commission of an error. The ERN is thought to partially reflect emotionally aversive aspects of error commission, however, it has thus far not been related to the neural processing of other aversive events, such as brief aversive bodily sensations. Therefore, the present study investigated the links between the ERN ...
Cross-Modal Relationships of Neural Gating with the Subjective Perception of Respiratory and Somatosensory Sensations KU Leuven
Neural gating is a phenomenon whereby the response to a stimulus in the electroencephalogram (EEG) is attenuated when preceded by an identical stimulus. Attenuation of paired auditory clicks has repeatedly been shown to be affected in mental disorders, e.g. schizophrenia. Neural gating has also been measured for respiratory and somatosensory sensations, however the attenuation of bodily-relevant stimuli has not yet been systematically related to ...
The role of fearful beliefs in the relationship between situational self-awareness and report of breathing-related sensations KU Leuven
Background and aims. Gating models of sensory perception suggest that increased attention towards the self leads to more on-line processing of sensory information and less report bias. However, little is known about the interaction of self-awareness with fearful beliefs about bodily sensations. In the present study, we explored report bias of breathing-related sensation under increased self-awareness compared to increased focus on external cues ...
Neural oscillations underlying the neural gating of respiratory sensations in generalized anxiety disorder KU Leuven
Individuals with generalized anxiety disorder (GAD) have been shown to have altered neural gating of respiratory sensations (NGRS) using respiratory-related evoked potentials (RREP); however, corresponding neural oscillatory activities remain unexplored. The present study aimed to investigate altered NGRS in individuals with GAD using both time and time-frequency analysis. Nineteen individuals with GAD and 28 healthy controls were recruited. ...
A novel self-report scale of interoception: the three-domain interoceptive sensations questionnaire (THISQ) KU Leuven
OBJECTIVES: The self-reported perception of bodily sensations is assumed predictive for health and disease. Existing questionnaires mostly focus on aversive sensations, and associated emotions and cognitions, which potentially confounds associations between interoception and illness. Therefore, we developed the Three-domain Interoceptive Sensations Questionnaire (THISQ), assessing self-reported perception of neutral respiratory, cardiac, and ...
Categorical interoception: Perceptual organization of sensations from inside KU Leuven
Adequate perception of bodily sensations is essential to protect health. However, misinterpretation of signals from within the body is common and can be fatal, for example, in asthma or cardiovascular disease. We suggest that placing interoceptive stimuli into interoceptive categories (e.g., the category of symptoms vs. the category of benign sensations) leads to perceptual generalization effects that may underlie misinterpretation. In two ...
The impact of unpredictability of dyspnea offset on dyspnea perception, fear and respiratory neural gating KU Leuven
Dyspnea is a debilitating and threatening symptom in various diseases. Affected patients often report the unpredictability of dyspnea episodes being particularly anxiety-provoking and amplifying the perception of dyspnea. Experimental studies testing dyspnea unpredictability together with related neural processes, physiological fear responses, and dyspnea-related personality traits are sparse. Therefore, we investigated the impact of ...
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 ...