Is it possible for the human brain to be activated by the dying process? PNASNews UMichMedSchool brain neuroscience dying human humanbrain activation research
By Pooja Toshniwal PahariaMay 3 2023Reviewed by Lily Ramsey, LLM In a recent study published in PNAS, researchers examined the neuronal activity of the dying human brain before and after the clinical discontinuation of ventilatory aid to investigate whether the dying process may engage the human brain.
Elevation of high-frequency-type oscillations, a possible measure of awareness, has been observed in critically ill individuals. The patients showed no sign of overt consciousness or voluntary behavior on the last day of their lives, as indicated by their Glasgow Coma Scale scores. Results The global hypoxia resulting from withdrawing ventilator support markedly, rapidly, and transiently stimulated γ activities in two patients with a history of seizures, as demonstrated by a rise in absolute electroencephalographic power in the γ frequency bands.
At near death, increases in PAC of γ oscillations, crPAC, and γ synchrony in the posteriorly located hot zones were observed. In addition, long-range γ synchrony between the posterior hot zones and frontal lobes also increased. A decrease in heart rate further enhanced β-γ PAC in the SSCs of the left side, and γ oscillatory movements in those on the right side showed increased inter-regional-type coupling with β oscillations in prefrontal regions.
Ireland Latest News, Ireland Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Chemotherapy drug reaches brain in humans for first timeA major impediment to treating the deadly brain cancer glioblastoma has been that the most potent chemotherapy can't permeate the blood-brain barrier to reach the aggressive brain tumor.
Read more »
Evidence of consciousness-like activity in the dying brainReports of near-death experiences—with tales of white light, visits from departed loved ones, hearing voices, among other attributes—capture our imagination and are deeply engrained in our cultural landscape.
Read more »
Brain activity decoder can reveal stories in people's mindsA new artificial intelligence system called a semantic decoder can translate a person's brain activity—while listening to a story or silently imagining telling a story—into a continuous stream of text. The system developed by researchers at The University of Texas at Austin might help people who are mentally conscious yet unable to physically speak, such as those debilitated by strokes, to communicate intelligibly again.
Read more »
New MRI tool can 'read minds' by translating brain activity into speechThe ability to read minds may have just moved a step closer after researchers developed a non-invasive speech decoder that can translate brain activity into words.
Read more »
How I reprogrammed my brain to quit ultra-processed food🍞 DoctorChrisVT challenged himself to spend a month eating only ultra-processed food to see how it affected his mind and body He discovered that ultra-processed food can drive our ancient evolved systems for “wanting” 🖊️ KasiaLDelgado
Read more »