Clinical Neurophysiology, Journal Year: 2025, Volume and Issue: unknown, P. 2110745 - 2110745
Published: May 1, 2025
Language: Английский
Communications Biology, Journal Year: 2025, Volume and Issue: 8(1)
Published: Jan. 14, 2025
Research on interoception has revealed the role of heartbeats in shaping our perceptual awareness and embodying a first-person perspective. These heartbeat dynamics exhibit distinct responses to various types touch. We advanced that those are directly associated brain activity allows self-other distinction. In study encompassing self social touch, we employed method quantify couplings temporal patterns cardiac sympathetic parasympathetic activities with connectivity. Our findings touch led an increase coupling between frontoparietal networks parasympathetic/vagal activity, particularly alpha gamma bands. Conversely, as progressed, observed decrease across broad frequency range. results show how intertwined organization provide fresh evidence neurophysiological mechanisms self-social
Language: Английский
Citations
2
The Journal of Physiology, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 18, 2025
Abstract Assessing cardiac dynamics over time is essential for understanding cardiovascular health and its parallel patterns of activity with the brain. We present a methodology to estimate time‐resolved sympathetic parasympathetic modulations dynamics, specifically tailored rat heart. To evaluate performance our method, we study dataset comprising spontaneously hypertensive rats (SHR) Wistar–Kyoto (WKY) rats. These were administered dobutamine elicit autonomic dynamics. The results obtained from method demonstrated accurate depiction reactivity induced by administration. responses closely resembled expected alterations observed during physical exercise conditions, albeit emulated pharmacologically. further compared standard measures low‐frequency (LF) high‐frequency (HF) components, which are commonly used, although debated, estimation. comparisons LF HF confirmed effectiveness in better capturing changes Our findings highlight potential adapted analysis future clinical translational studies involving rodent models. validation approach animal models opens new avenues investigating relationship between ongoing brain Such investigations crucial advancing brain–heart connection, particularly cases neurodegeneration, injuries conditions. image Key points developed estimation validated against measures. used cohort rats, administration induce responses. accurately depicted similar exercise. suggest on
Language: Английский
Citations
0
Experimental Physiology, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 21, 2025
Abstract Cardiac activity responds dynamically to metabolic demands and neural regulation. However, little is known about this process during pregnancy. Reports show occasional fetal–maternal heart rate couplings, but it has remained unclear whether these couplings extend more complex oscillatory patterns of the rhythm. We developed a framework time‐varying measures rhythm, test presence co‐varying in concurrent maternal fetal (late pregnancy dataset, n = 10, labour 12). These were derived from first second‐order Poincaré plots, with aim describe changes short‐ long‐term rhythmicity, also dynamic shifts acceleration deceleration rate. found episodes maternal–fetal cardiac rhythm all explored, both datasets (at least 90% dataset presented significant correlation each measure, P < 0.001), delays suggesting bilateral interactions at different time scales. that intensify (test between late vs. datasets, 0.0015 plot‐derived measures). While most literature suggests breathing or contractions, we propose possibility may have signalling function context co‐regulatory mechanisms inter‐organ interactions. Understanding visceral oscillations utero enhance assessment healthy development.
Language: Английский
Citations
0
Clinical Neurophysiology, Journal Year: 2025, Volume and Issue: unknown, P. 2110745 - 2110745
Published: May 1, 2025
Language: Английский
Citations
0