Cerebrovascular autoregulation in hypoxia: quantitative insights from arterial spin labeling
Hypoxia, defined as an insufficient oxygen supply relative to metabolic demand, induces a cascade of cerebrovascular and metabolic responses aimed at preserving cerebral homeostasis. These responses vary depending on the temporal profile of exposure, with acute (e.g., hypoxic–ischemic encephalopathy, acute high-altitude exposure) versus chronic (e.g., obstructive sleep apnea, long-term altitude residence) conditions, and may range […]
Hypoxia’s Impact on Hippocampal Functional Connectivity: Insights from Resting-State fMRI Studies
The hippocampus is one of the brain’s most vulnerable structures to hypoxia, playing a crucial role in memory and spatial navigation. This sensitivity makes it a key region for understanding the effects of hypoxia on brain connectivity. This review examines the effects of both acute and chronic hypoxia on resting-state networks (RSNs) that contribute to […]
Does freediving lead to hippocampal adaptability to hypoxia and maintenance of episodic memory?
Background: Accidental hypoxia has detrimental effects on the brain, particularly on the hippocampal subfields (HS), which are highly sensitive to oxygen deprivation and play a crucial role in episodic memory. This raises the question: could freediving training induce anatomical changes in the HS and lead to significant memory deficits? This study aimed to investigate the impact […]
A fast and robust hippocampal subfields segmentation: HSF revealing lifespan volumetric dynamics
A fast and robust hippocampal subfields segmentation: HSF revealing lifespan volumetric dynamics Authors: Clément POIRET, Antoine Bouyeure, Sandesh Patil, Antoine Grigis, Edouard Duchesnay, Matthieu Faillot, Michel Bottlaender, Frederic Lemaitre, Marion NOULHIANE Online Publication Date: Jun 2023 doi: 10.3389/fninf.2023.1130845 Keywords: Hippocampal Subfields, Segmentation, HSF Full PDF here. Read more about this project by accessing the full […]
Viewpoint Equivariance: are CapsNets Any Good for Hippocampal Segmentation?
Viewpoint Equivariance: Are CapsNets Any Good for Hippocampal Segmentation? in Organization for Human Brain Mapping (OHBM) 2021 Authors: Clément POIRET, Frédéric LEMAITRE, Antoine BOUYEURE, Sandesh PATIL, Edouard DECHESNAY, Antoine GRIGIS, Marion NOULHIANE Online Publication Date: 21 Jun 2021 DOI: N/A Keywords: Hippocampal Subfields, Segmentation, Capsules, Deep Learning Full PDF here. In the recent years, research […]