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Reduction in EEG theta power as a potential marker for spatial disorientation during flight.
Sci Rep
January 2025
Department of Cognitive and Brain Sciences, Ben-Gurion University of the Negev, 1 Ben-Gurion Blvd, Beer-Sheva, Israel.
During flight, spatial disorientation (SD) commonly occurs when a pilot's perception conflicts with the aircraft's actual motion, attitude, or position. A prevalent form of SD is the somatogyral illusion, which is elicited by constant speed rotation and causes a false perception of motion in the opposite direction when the rotation ceases. This research aimed to investigate changes in brain activity that occur when experiencing a somatogyral illusion by simulating conditions closely mimicking flight conditions to gain insight into how to better manage this illusion during flight.
View Article and Find Full Text PDFOscillatory correlates of threat imminence during virtual navigation.
Psychophysiology
July 2024
Center for Molecular and Behavioral Neuroscience, Rutgers State University, Newark, New Jersey, USA.
The Predatory Imminence Continuum Theory proposes that defensive behaviors depend on the proximity of a threat. While the neural mechanisms underlying this proposal are well studied in animal models, it remains poorly understood in humans. To address this issue, we recorded EEG from 24 (15 female) young adults engaged in a first-person virtual reality Risk-Reward interaction task.
View Article and Find Full Text PDFThe direction of theta and alpha travelling waves modulates human memory processing.
Nat Hum Behav
June 2024
Department of Biomedical Engineering, Columbia University, New York City, NY, USA.
To support a range of behaviours, the brain must flexibly coordinate neural activity across widespread brain regions. One potential mechanism for this coordination is a travelling wave, in which a neural oscillation propagates across the brain while organizing the order and timing of activity across regions. Although travelling waves are present across the brain in various species, their potential functional relevance has remained unknown.
View Article and Find Full Text PDFSynchronized LFP rhythmicity in the social brain reflects the context of social encounters.
Commun Biol
January 2024
Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, POB. 3338, Haifa, 3103301, Israel.
Mammalian social behavior is highly context-sensitive. Yet, little is known about the mechanisms that modulate social behavior according to its context. Recent studies have revealed a network of mostly limbic brain regions which regulates social behavior.
View Article and Find Full Text PDFIntermittent Theta Burst Stimulation Improves Motor and Behavioral Dysfunction through Modulation of NMDA Receptor Subunit Composition in Experimental Model of Parkinson's Disease.
Cells
June 2023
Laboratory for Neurobiology, Department for General Physiology and Biophysics, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia.
Article Synopsis
- Parkinson's disease (PD) is a neurodegenerative disorder that leads to motor and nonmotor symptoms due to the loss of dopamine-producing neurons, highlighting the need for new treatments as current therapies become less effective over time.
- Repetitive transcranial magnetic stimulation (rTMS), particularly intermittent theta burst stimulation (iTBS), shows promise in animal studies for improving motor performance and behavior in PD models.
- This study found that prolonged iTBS treatment in rats not only improved coordination and behavior but also reduced neuron degeneration and altered certain molecular pathways, suggesting it could be an effective early intervention for PD.
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