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Measuring Speech Discrimination Ability in Sleeping Infants Using fNIRS-A Proof of Principle.
Trends Hear
January 2025
Bionics Institute, East Melbourne, VIC, Australia.
This study used functional near-infrared spectroscopy (fNIRS) to measure aspects of the speech discrimination ability of sleeping infants. We examined the morphology of the fNIRS response to three different speech contrasts, namely "Tea/Ba," "Bee/Ba," and "Ga/Ba." Sixteen infants aged between 3 and 13 months old were included in this study and their fNIRS data were recorded during natural sleep.
View Article and Find Full Text PDFAngiosome Territories of Vestibulocochlear Nerve (VIII).
Ann Neurosci
January 2025
Government Medical College, Bhadradri, Kothagudem, Telangana, India.
Background: Taylor and Palmer introduced an angiosome (vascular) concept in reconstructive plastic surgery in 1987. The angiosome is considered a segment of a nerve (cranial or peripheral nerve) supplied by a primary source of blood vessels.
Purpose: To observe the arteries supplying the vestibulocochlear nerves (VIII) from the brainstem till their termination.
Flow rate modulates focused ultrasound-mediated vascular delivery of microRNA.
Mol Ther Nucleic Acids
March 2025
Department of Biology, Concordia University, Montreal, QC H4B 1R6, Canada.
Gene therapy targeting ischemic heart disease is a promising therapeutic avenue, but it is mostly restricted to viral-based delivery approaches which are limited due to off-target immunological responses. Focused ultrasound presents a non-viral, image-guided technique in which circulating intravascular microbubble contrast agents can reversibly enhance vascular permeability and gene penetration. Here, we explore the influence of flow rate on the microbubble-assisted delivery of miR-126, a potent pro-angiogenic biologic, using a custom acoustically coupled pressurized mesenteric artery model.
View Article and Find Full Text PDFCross-sectional imaging of speed-of-sound distribution using photoacoustic reversal beacons.
Photoacoustics
February 2025
School of Biomedical Engineering, Southern Medical University, Guangzhou, Guangdong 510515, China.
Photoacoustic tomography (PAT) enables non-invasive cross-sectional imaging of biological tissues, but it fails to map the spatial variation of speed-of-sound (SOS) within tissues. While SOS is intimately linked to density and elastic modulus of tissues, the imaging of SOS distribution serves as a complementary imaging modality to PAT. Moreover, an accurate SOS map can be leveraged to correct for PAT image degradation arising from acoustic heterogeneities.
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