Neuroscience - Tumblr Posts
Blinking has been shown to actually boost vision, rather than impair it as previously thought. Research has found that blinking increases the power of retinal stimulation, enhances visibility, and helps reformat visual information. Despite the brief blackouts in vision that occur during blinking, neural activity rebounds to a higher level afterward, improving vision. This new study suggests that blinking is useful for more than just lubricating the eyes, and plays a crucial role in enhancing visual perception.
(via Blinking Actually Boosts Your Vision, And We Never Even Noticed : ScienceAlert)
Doing a form for school and would appreciate if u could take it!
This is kinda off topic to my blog but I am writing a text on how different mental disabilities affect one’s sense of morality, and I thought adding a questionnaire to see what my own studies say about it. I made it completely anonymous so feel free to be completely honest :3
Reblogs appreciated dearly! ^_^
https://docs.google.com/forms/d/e/1FAIpQLSfZ9bzgfqtY4TPsQMxvCSyeeyh6vObTxjzu3ICduykFqrueSA/viewform?usp=sf_link
Drew this for homework - we had to emulate Ernst Haeckel
sduhijkfnsm,dfosjhkdnmf idk
The whole "the brain isn't fully mature until age 25" bit is actually a fairly impressive bit of psuedoscience for how incredibly stupid the way it misinterprets the data it's based on is.
Okay, so: there's a part of the human brain called the "prefrontal cortex" which is, among other things, responsible for executive function and impulse control. Like most parts of the brain, it undergoes active "rewiring" over time (i.e., pruning unused neural connections and establishing new ones), and in the case of the prefrontal cortex in particular, this rewiring sharply accelerates during puberty.
Because the pace of rewiring in the prefrontal cortex is linked to specific developmental milestones, it was hypothesised that it would slow down and eventually stop in adulthood. However, the process can't directly be observed; the only way to tell how much neural rewiring is taking place in a particular part of the brain is to compare multiple brain scans of the same individual performed over a period of time.
Thus, something called a "longitudinal study" was commissioned: the same individuals would undergo regular brain scans over a period of mayn years, beginning in early childhood, so that their prefrontal development could accurately be tracked.
The longitudinal study was originally planned to follow its subjects up to age 21. However, when the predicted cessation of prefrontal rewiring was not observed by age 21, additional funding was obtained, and the study period was extended to age 25. The predicted cessation of prefrontal development wasn't observed by age 25, either, at which point the study was terminated.
When the mainstream press got hold of these results, the conclusion that prefrontal rewiring continues at least until age 25 was reported as prefrontal development finishing at age 25. Critically, this is the exact opposite of what the study actually concluded. The study was unable to identify a stopping point for prefrontal development because no such stopping point was observed for any subject during the study period. The only significance of the age 25 is that no subjects were tracked beyond this age because the study ran out of funding!
It gets me when people try to argue against the neuroscience-proves-everybody-under-25-is-a-child talking point by claiming that it's merely an average, or that prefrontal development doesn't tell the whole story. Like, no, it's not an average – it's just bullshit. There's no evidence that the cited phenomenon exists at all. If there is an age where prefrontal rewiring levels off and stops (and it's not clear that there is), we don't know what age that is; we merely know that it must be older than 25.
20-28% of the time i'm a very, very curious, hopeful and ambitious child. rest of the time i am, like that one tweet said, stuck on my back like a bug. when will this cycle stoppp aaaa
can i stop realising my love and passion for what i study the night before the exam? i beg-
every semester, especially during exam season, i automatically fall into the habit of studying for the grades. i have experienced a million times how much that hurts me and my passion for my subjects, and eventually the grades as well. yet, i still find it so hard to stop thinking this way. and then the night before the exam, when the anxiety has reached its peak and can hurt me no more than how much it already has, i radically accept my condition and surrender.
eventually, i start enjoying what i am studying again and stop worrying about the result. i just wish it happened a bit sooner every time, and not always one night before the exam. wish i get there ~
why neuroscience is cool
space & the brain are like the two final frontiers
we know just enough to know we know nothing
there are radically new theories all. the. time. and even just in my research assistant work i've been able to meet with, talk to, and work with the people making them
it's such a philosophical science
potential to do a lot of good in fighting neurological diseases
things like BCI (brain computer interface) and OI (organoid intelligence) are soooooo new and anyone's game - motivation to study hard and be successful so i can take back my field from elon musk
machine learning is going to rapidly increase neuroscience progress i promise you. we get so caught up in AI stealing jobs but yes please steal my job of manually analyzing fMRI scans please i would much prefer to work on the science PLUS computational simulations will soon >>> animal testing to make all drug testing safer and more ethical !! we love ethical AI <3
collab with...everyone under the sun - psychologists, philosophers, ethicists, physicists, molecular biologists, chemists, drug development, machine learning, traditional computing, business, history, education, literally try to name a field we don't work with
it's the brain eeeeee
i didn't expect psychology courses to be so hard! it is understandable though, since this one is about lab in psychology. psychophysics and related disciplines seem so intriguing and fun from afar, but it takes me a whole day to understand a concepts in it well. unfortunately i missed this exam due to anxiety issues and i hope i'll get to retake it. i'll admit it is fun to learn this study though it's pretty fascinating that so many people have actually went in such depth about it and actually figured some things out ~
🎧 ~ this night by groovyroom
Farewell, Ben Barres.
“The mere existence of Ben Barres—a successful, brilliant, undeniably high-impact scientist who was unashamed and so graceful in demystifying what being transgender means … he saved lives, I’m sure. Thanks to him, there are countless people who looked in the mirror and said: There’s a place for me in this world.”
man eu volto a ler esse livro o corpo guarda as marcas e volta a vontade súbita de estudar neurociência, é muito louco entender como o cérebro funciona, principalmente inter-relacionando com psicologia social
hoje estudei alternando psicopatologia e o corpo guarda as marcas e quase tive uma síncope na biblioteca quando li esse parágrafo, porque eu vinha me questionando isso
Bat-to-Man
The possibility of viruses spreading from bats to humans has taken on very real significance to us all in the last few years. Different species of lyssavirus, a family that includes the rabies virus, are carried by bats and there have been cases of cross-species transmission to other mammals. Researchers examined the mechanisms and transmission of 10 different lyssavirus species in mice. They developed a new pathogenicity index, ranking the viral incubation times and impact on survival. They found notable variation between species, and even found some to have higher rankings than rabies virus samples. Further investigation revealed that lyssavirus species (green in the mouse brain section pictured) are capable of infecting not only neurons (blue) but other brain cells called astrocytes (green) as well, revealing new details about how lyssaviruses affect animals, which could help equip us to handle potential virus outbreaks in the future.
Written by Anthony Lewis
Image from work by Antonia Klein and colleagues
Friedrich-Loeffler-Institut (FLI), Federal Research Institute for Animal Health, Greifswald-Insel Riems, Germany
Image originally published with a Creative Commons Attribution 4.0 International (CC BY 4.0)
Published in PLOS Neglected Tropical Diseases, January 2022
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there’s nothing purer or better than how much kids enjoy being picked up and then hurled at soft surfaces
Persistez dans la visualisation de la vie dont vous avez toujours rêvé ou bien continuez de vivre celle qui vous a toujours fait désirer davantage.
Cela dépend entièrement de vous.
