Improved Memory By Using Transcranial Alternating Current Stimulation | Neuro3
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- čas přidán 24. 09. 2022
- Transcranial alternating current stimulation, abbreviated as tACS, is a method to change brain activity. Grover et al. 2022 used it to improve memory.
Transcranial alternating current stimulation (tACS) is a non-invasive brain stimulation technique. Low intensity alternating currents are applied to the head, which have a small effect on the brain. Due to the low intensity, tACS is safe. The alternating currents can be applied at different frequencies, immitating neural oscillations (brain waves). Thereby, these brain waves can be made stronger, which can improve cognitive functions.
Grover and colleagues used it to improve memory in healthy elderly volunteers. They show that tACS in the inferior parietal lobule at the theta frequency improves memory. This effects was frequency specific, since gamma tACS over the same region did not improve memory. Also, gamma frequency tACS (but not theta tACS) over the dorsolateral prefrontal cortex improved memory.
Altogether this study indicates that tACS may become a therapeutic tool to treat and prevent neurological and mental health disorders.
Reference:
Grover, S., Wen, W., Viswanathan, V., Gill, C. T., & Reinhart, R. (2022). Long-lasting, dissociable improvements in working memory and long-term memory in older adults with repetitive neuromodulation. Nature neuroscience, 25(9), 1237-1246. doi.org/10.1038/s41593-022-01...
Narrated by: Miles Wischnewski
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You guys are amazing! Summarize more studies!
Thank you! :)
Will do!
This is really interesting. Are there any studies looking into how well the brain performs while under tacs?
I heard something about the military using tdcs to enhance staff performance somewhere.
Yea there are quite a few studies summarizing the effects on the brain and cognition! Here is a recent review: www.sciencedirect.com/science/article/pii/S1364661322002984
I am planning to cover this topic in a lecture on our secondary channel in the coming weeks :)
@@real.psyched what is your second channel called
@@Jaythejet98 It is called Psyched! Discussions. Currently there is not a lot of content on there yet. But we definitely want to use it for longer content.
czcams.com/channels/_jxeVVftPM24IrnID-75UA.html
Which tacs devices do you recommend?
I am not too familiar with commercial devices. Research devices are extremely expensive, so those would be no option. I have no experience with it myself, but I hear good things about Bumble Bee. They don't seem to sell any esotheric stuff, but just a solid tACS machine.
Can you comment the link for this study?
It is in the video description, but here: www.nature.com/articles/s41593-022-01132-3
Scientologists LOVE this device.