[HN Gopher] Memories are not only in the brain, human cell study...
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Memories are not only in the brain, human cell study finds
Author : vivekd
Score : 178 points
Date : 2024-11-09 13:53 UTC (9 hours ago)
(HTM) web link (medicalxpress.com)
(TXT) w3m dump (medicalxpress.com)
| neom wrote:
| The Body Keeps the Score is a brilliant but difficult read. Do
| recommend it.
|
| https://books.google.ca/books/about/The_Body_Keeps_the_Score...
| wslh wrote:
| Thank you for the reference, I think it contributes to add the
| overview: Trauma is a fact of life. Veterans
| and their families deal with the painful aftermath of combat;
| one in five Americans has been molested; one in four grew up
| with alcoholics; one in three couples have engaged in physical
| violence. Dr. Bessel van der Kolk, one of the world's foremost
| experts on trauma, has spent over three decades working with
| survivors. In The Body Keeps the Score, he uses recent
| scientific advances to show how trauma literally reshapes both
| body and brain, compromising sufferers' capacities for
| pleasure, engagement, self-control, and trust. He explores
| innovative treatments--from neurofeedback and meditation to
| sports, drama, and yoga--that offer new paths to recovery by
| activating the brain's natural neuroplasticity. Based on Dr.
| van der Kolk's own research and that of other leading
| specialists, The Body Keeps the Score exposes the tremendous
| power of our relationships both to hurt and to heal--and offers
| new hope for reclaiming lives.
| Jerrrrrrry wrote:
| Thank you, this made a difference (and thanks noem for the
| book recc)
| copperx wrote:
| Thanks. Does it require to know basic neurology? Or medicine?
| Why is it a difficult read?
| neom wrote:
| emotionally difficult, he goes deeply into peoples trauma, so
| it gets into some extremely "triggering" areas, not much
| phases me but that book wasn't a super easy from a holding
| back tears perspective.
| temp0826 wrote:
| This came to mind when I saw the post. I work at an ayahuasca
| retreat center and these types of things are front and center
| here. Physical wounds can and do heal, but traumas
| ("energetic"/psychological wounds) remain fresh as the day they
| happened and influence us in immeasurable ways. The effects of
| ayahuasca often put a spotlight on them and it can be a rough
| ride until they are fully processed.
| Cantinflas wrote:
| Imo treating traumas with ayahuasca is like treating flu with
| a baseball bat.
| PittleyDunkin wrote:
| I think the analogy here would be diagnosis (beyond
| western-defined ontologies) rather than treatment.
| Treatment comes later.
| temp0826 wrote:
| It's a different school of thought for sure. We find
| traditional therapy to be very synergistic with it.
| Sometimes one can cognitively know how to fix something,
| but despite that it still sticks in the body. Ayahuasca can
| help to "percolate" that knowing into the body/nervous
| system for great results.
| akira2501 wrote:
| Except the "trauma informed ayahuasca ceremony" is $500 a
| pop with a minimum of 5 ceremonies. Plus you have to travel
| outside of the USA. Good cottage industry.
| bayindirh wrote:
| > but traumas ("energetic"/psychological wounds) remain fresh
| as the day they happened and influence us in immeasurable
| ways.
|
| I experienced this in two occasions. First, when I was going
| to therapy, and somehow managed to reach these traumas, the
| second is in deep meditation, which Japanese call "meeting
| with the ghosts".
|
| Traumas stay fresh until you face them again, and acknowledge
| them. The moment you accept that they have happened, you have
| the chance to heal them.
|
| This doesn't mean the process is smooth, painless or easy.
| It's neither, but it's very possible.
| mettamage wrote:
| But isn't it because in reality, the limbic system keeps the
| score? Example [1]. I also think he mentioned it himself.
|
| [1] https://pmc.ncbi.nlm.nih.gov/articles/PMC8418154/
| the__alchemist wrote:
| I'm having a hard time garnering a mechanism from the article,
| but I think DNA methylation is a good candidate.
| whoisjuan wrote:
| This is wild, but many studies have reached the same conclusion.
|
| I remember reading somewhere that heart transplant recipients
| have random memory flashes that are not their memories, and
| sometimes they develop new personality traits.
| hank808 wrote:
| That sounds really interesting! Can you cite any articles or
| anything?
| whoisjuan wrote:
| https://pubmed.ncbi.nlm.nih.gov/38694651/
| kadoban wrote:
| > I remember reading somewhere that heart transplant recipients
| have random memory flashes that are not their memories, and
| sometimes they develop new personality traits.
|
| Wild. Doesn't necessarily surprise me too much that the body
| stores some memories outside the brain, but it seems _very_
| surprising that another body/brain can read and understand ones
| created by another. I'd assume that the whole mind and memory
| system is one big correlated mess, not essentially composed of
| data files in a ~standard encoding.
| kibwen wrote:
| It would be hasty to assume that any memories would be
| transferable in such a way. If your hypothesis is that
| transplant recipients can have their memories altered by
| interpreting information carried by foreign organ cells,
| start by assuming they're reading junk data that they cannot
| decipher. Brains are great at turning junk data into
| something that feels real.
| kadoban wrote:
| That was my followup question, are the memories accurate
| (even as much as normal memories are), or are they
| nonsense? Or even better, it'd be fun if they're not
| completely nonsense, but corrupted in some understandable
| way (like people/places are substituted for instance).
| There's no way at all that memories are encoded as
| essentially mpeg files, so _something_ has to be wrong with
| them.
|
| But yeah, you're right, odds seem good that they're just
| nonsense, but even then it just feels weird that the body
| can even interpret them as memories in the slightest.
| yetihehe wrote:
| Maybe it's all about encoding and it IS pretty standard?
| Brain can decode vision through tongue nerves [1] as long
| as it looks like vision data and is correlated with head
| movements. There were experiments with other senses sent
| through different means or whole new sense (magnetic [2]
| and echolocation [3]). Looks like brain is so flexible,
| that anything resembling sensible information will be
| decoded.
|
| [1] https://news.wisc.edu/a-taste-of-vision-device-
| translates-fr...
|
| [2] https://blinry.org/compass-belt/
|
| [3] https://www.physoc.org/magazine-
| articles/echolocation-in-peo...
| im3w1l wrote:
| I would probably ascribe it to the procedure itself. Like I
| imagine if you put someone under, opened up their chest,
| took their heart out and then... put it back in - that the
| stress of that whole thing would be enough to seriously
| mess with your head.
| kadoban wrote:
| You could probably test that theory. Just compare heart
| transplants against similarly invasive surgeries and see
| if the same effects exist.
| winocm wrote:
| Also relevant: https://www.mdpi.com/2673-3943/5/1/2
| y-c-o-m-b wrote:
| > In addition to changes in preferences, some recipients
| describe new aversions after receiving a donor heart. For
| example, a 5-year-old boy received the heart of a 3-year-old
| boy but was not informed about his donor's age or cause of
| death. Despite this lack of information, he provided a vivid
| description of his donor after the surgery: "He's just a
| little kid. He's a little brother like about half my age. He
| got hurt bad when he fell down. He likes Power Rangers a lot
| I think, just like I used to. I don't like them anymore
| though" (p. 70, [8]). Subsequently it was reported that his
| donor had died after falling from an apartment window while
| trying to reach a Power Ranger toy that had fallen onto the
| window ledge. After receiving his new heart, the recipient
| refused to touch or play with Power Rangers
|
| This is the most fascinating thing I've read in a long time.
| Thanks for the link
| winocm wrote:
| There's a similar story I've read before in a different
| paper regarding about an organ donor who drowned and then
| the recipient developed an extreme aversion to water.
|
| I don't recall what the exact title or link to the article
| was though.
| GuB-42 wrote:
| A theory I have seen is that we tend to mix up cause and
| effect.
|
| So, for example, a dangerous situation causes stress and stress
| causes the heart to beat faster, all normal. But make the heart
| beat faster through external means and it will also cause
| stress. So it is not clear which one is the cause and which one
| is the effect, probably some weird combination, with all sorts
| of feedbacks. Life is messy.
|
| So get a heart that isn't yours and it will not beat in a
| familiar way, which, in turn may be interpreted as changing
| emotions. And even if memories are entirely contained within
| the brain, what if the heartbeat is part of these memories,
| with a heart that reacts differently, the meaning of these
| memories may change.
|
| For a tech analogy, in order to record a video game session, it
| is common to only record player input. If the game is
| deterministic, you just need to run the game with the recorded
| inputs and the session will be faithfully reproduced. It is
| much more compact than something like a video. Now imagine we
| change the game engine so that it responds slightly differently
| to inputs, now, when replayed, the game will appear different.
| If we imagine memories are "replays" and the engine is our
| body, than altering our body will also alter our memories.
| mock-possum wrote:
| Man that seems like such a fantastical claim -- but yeah, it
| does seem like the physical structure to support it could be
| there.
| RaftPeople wrote:
| This seems to make sense given that Purkinje cells in the brain
| have been shown to do this same type of thing in isolation
| (detect and respond to patterns of input).
|
| It meant there was some low level mechanism lurking inside at
| least those cells, so not too surprising it's more general.
| htk wrote:
| Of course cells and tissues react to external stimuli, that's
| part of the homeostasis process, and a fundamental part of our
| adaptivity or we'd die with minimal changes in the environment.
| Calling it memory is the same as saying a bruise is my body
| having a memory of me hitting the corner of the table. Well toned
| bodies are the memories of the weight lifting exercises they've
| performed in the past, and so on.
|
| But I can only imagine the extrapolations that alternative
| medicine people will make with this.
| aszantu wrote:
| there's an interesting trauma release meditation where your
| limbs are asked to remember things. It's pretty interesting
| what comes up, then you're asked to let it go and when you do,
| some weird extra deep relaxation sets in
| PittleyDunkin wrote:
| Memories seem in this context to mean state that isn't
| immediately physiologically apparent. But yes, I think your
| definition is reasonable too, if not very useful for
| communication.
| neom wrote:
| I read the paper and I didn't think that is what they're
| talking about. The molecular systems for temporal pattern
| detection where previously thought to be specialized to
| neurons, but this article indicates that they exists in other
| cell types. Bruising is a response to physical trauma, lacking
| any temporal pattern sensitivity? Molecular mechanism related
| to learning and memory formation, ERK and CREB signaling are
| known to be crucial for memory formation in neurons. I think
| what the paper is showing that this specific molecular
| machinery for detecting and responding to temporal patterns
| isn't unique to neurons
| https://www.nature.com/articles/s41467-024-53922-x
| jb1991 wrote:
| The odd conclusions you draw are not what is explained in this
| article.
| grugagag wrote:
| Is muscle memory real then?
| iefbr14 wrote:
| That was my conclusion too after reading it. I was always
| wondering how the brain could send all needed info to the
| muscles fast enough when someone is playing piano or typing 120
| characters a minute.
| danhau wrote:
| I would have assumed it did by anticipating. Musicians
| reading sheet music tend to read ahead, but that could be
| something else entirely.
| tetha wrote:
| Mh, I'm neither a Neurologist, nor any level of good at
| being a musician.
|
| But it goes further than that. Now after a few years, I
| start to recognize patterns in songs and this removes a
| huge amount of cognitive overhead. For example, there are
| very classical rhythms in rock and metal. These were very
| intimidating two or three years ago, because it's so many
| notes to look at and a lot of them fast and it's just a lot
| of stuff to look at.
|
| Now, on a guitar, I just recognize 18 bars of gallop-rhythm
| on string two and my right hand just does that, at least at
| the speeds I can do. Or you can recognize how a song is in
| a certain key and my left hand is just used to what happens
| in such keys. Sure, you need to learn the notes, but the
| physical motions are largely set already.
|
| Similar things on a keyboard. In complex sections, a lot of
| thought can go into hand position and which finger to use
| to press a key, because you may need to prepare movement of
| your hand a few notes early or you can't hit a certain
| transition. I've noticed that something other than
| conscious thought optimizes that as well.
|
| My biggest takeaway is that music is hard, and the human
| kinematic system is entirely amazing.
| Nevermark wrote:
| Muscles and nerves adapt to physical challenges to make higher
| intensity efforts easier in three ways: better effort
| coordination, higher demand signaling, and higher force
| produced by muscle fibers.
|
| (We tend to think of just the latter, but all three
| significantly impact "strength".)
|
| Each of these has mechanisms of maintenance and faster recovery
| after use lapses. Which can all be described as memory.
|
| First, the spinal cord and motor cortex learn more effective
| coordination. Proper coordination of muscles impacts strength
| by ensuring our different muscles cooperate effectively to
| apply force where we need it. We imagine simple movements as
| simple efforts, but they are really a series of coordinated
| multiple muscle response.
|
| This can be considered "normal" neural/cognitive learning and
| memory in the brain, spinal coord and nervous system.
|
| Second, our nervous system learns to send higher intensity
| demand signals to the muscles.
|
| I don't know what the mechanism is here. Maybe higher
| coordination of simultaneous signals within the muscle? Maybe
| an increase in signal strengths? An increase in nerve cells? A
| combination? In any case, once learned, this learning is mostly
| maintained despite loss of stimulus and relearned quickly.
|
| This creates a common source of injury. After a workout hiatus,
| our ability to demand intense muscle response can exceed the
| abilities of our reduced muscle's capabilities. It can feel too
| easy to push our bodies hard again, resulting in injuries that
| abort the attempt to restart training.
|
| Restart weight lifting programs with patience and caution,
| until muscles catch up with the renewed overload, hypertrophy
| and recovery cycle.
|
| The third very long term memory mechanism in muscle cells is
| quite interesting: myonuclear accretion. Support cells merge
| with muscle cells permanently giving them multiple nuclei,
| permanently increasing their ability and speed to create the
| proteins we need for hypertrophy (muscle growth) and recovery
| (repair and energy store recuperation).
|
| Myonuclear accretion allows muscle cells to grow far beyond
| their original limits. And accounts for why previously trained
| muscles can retain a modestly higher level of strength and
| size, even after training regimen lapses.
|
| All three memory mechanisms account for why regaining previous
| high levels of strength happens faster, with less effort, than
| it took to gain any level of strength the first time.
|
| Aother memory mechanism include higher interoception,
| prioperception, kinematics, and higher level learning regarding
| exercise form, workout discipline, workout organization, body
| limitations, injury warnings, positive associations with making
| effort, etc. that are all result in long term increased
| strength and ability recover and accumulate it.
| soared wrote:
| It does not seem like the article supports the title. The study
| seems more focused on spaced repetition?
| neom wrote:
| The research goes beyond observing spaced repetition it shows
| that essential features of memory formation like encoding and
| retention of temporal patterns occur outside the nervous
| system.
| ants_everywhere wrote:
| This study is specifically about "learning" that takes place
| without interacting with the brain.
|
| It's learning in the same sense the immune system learns to fight
| of infections. The difference is that the mechanism by which
| cells record state is similar to one of the mechanisms also used
| by the brain at the cellular level, which you would expect.
|
| The cells and structures that make up the brain evolved from
| simpler structures, so we would expect some reuse of mechanism.
| lupire wrote:
| The obvious-in-retrospect distinction is that memory is
| everywhere (even a footprintnin dirt is a memory), and
| selective (reinforced) memory is more complex (as in the OP
| example), and the _combination_ and _communication_ of memories
| and information is where the brain really outshines other
| objects.
| Jerrrrrrry wrote:
| Using the immune system as an analogy as another complexity
| layer of adversarial <-> learning/adaptation in relation to the
| context of both complexity theory / machine learning is
| tempting but almost is too easy. Plus the immune system is
| likely more complex than the analogy would hold up to.
| akira2501 wrote:
| The immune system is several systems. One of my favorite parts
| is the Thymus.
|
| It's literally setup like a gauntlet. New immune cells from
| marrow come through the Thymus and are tested. They need to
| pass through and attack foreign cells then pass through and
| _not_ attack host cells. They are essentially tagged and
| filtered by this process.
|
| Most cells are let go into the body, some cells are reserved as
| self regulatory cells, and the others that do not pass are
| destroyed.
|
| It's a literal quality control and selection machine for your
| immune system.
| cantrevealname wrote:
| This brings up the question about whether there are hereditary
| information transmission methods other than DNA. There are so
| many things we ascribe to "instinct" that might be information
| transmitted from parent to offspring in some encoded format.
|
| Like songs that newborn songbirds know, migration routes that
| animals know without being shown, that a mother dog should break
| the amniotic sac to release the puppies inside, what body shapes
| should be considered more desirable for a mate out of an infinite
| variety of shapes.
|
| It seems it implausible to me that all of these things can be
| encoded as chemical signalling; it seems to require much more
| complex encoding of information, pattern matching, templates,
| and/or memory.
| neom wrote:
| You might enjoy the research of Dr. Ian Stevenson. It's his
| research that got me deep down the rabbit hole on this subject
| many years ago. (I have 1 vivid memory that I would call a
| "past life memory") -
| https://en.wikipedia.org/wiki/Ian_Stevenson
| Mistletoe wrote:
| What's the memory?
| gliptic wrote:
| This is paranormal reincarnation mumbo-jumbo, not
| inheritance.
| bilsbie wrote:
| And can those stored behaviors affect the phenotype of the
| offspring too? (LaMark has entered the building)
| ben_w wrote:
| > what body shapes should be considered more desirable for a
| mate out of an infinite variety of shapes.
|
| However this specifically works in humans -- and considering
| the diversity of actual human preferences includes, amongst
| many other things, _non-existant dragons_ * -- the first I
| heard of the term "superstimulus" was with the example of
| certain beetles that kept trying to copulate with beer bottles:
|
| https://en.wikipedia.org/wiki/Supernormal_stimulus
|
| * Humans must have _something_ guiding us, or we 'd all be (a)
| bisexual and (b) equally often aroused by dragons as by those
| we could actually have a child with; the fact that dragons
| happen at all is simply an indication that our brains are
| likely using a very simple set of heuristics to get there, and
| simple heuristics is totally a thing that DNA could encode
| thrw42A8N wrote:
| Often human sexuality is rooted in power dynamics and these
| things are associations. I certainly am attracted to powerful
| women wearing whatever style of clothing my primary school
| teacher had...
| pessimizer wrote:
| Human babies pick up prosody in the womb from their mothers.
| Here's a random, seemingly comprehensive article about that
| that I haven't read yet (I know about this from other sources.)
|
| https://aeon.co/essays/how-fetuses-learn-to-talk-while-theyr...
| aydyn wrote:
| You might be interested in epigenetic inheritence. We do know
| that some epigenetic marks are passed down but its still very
| much unknown how much heritable information is encoded in
| epigenetics.
| PittleyDunkin wrote:
| While histones and methylation aren't DNA themselves, they're
| certainly incapable of functioning without DNA. I'd assume
| the parent poster was referring to further still mechanics.
| Nasrudith wrote:
| I recall hearing about newborn birdsongs being learned "in
| utero" (not sure if quite the right term but lets go with
| that). In that case the channel for transmission was sound. It
| was apparently used as a shibboleth against brood parasite egg
| replacement. If the baby didn't sing the song that was being
| sung to it then the baby got abandoned by presumably
| disappointed parents. I suppose it could also be a 'health
| test' of sorts since sufficiently deformed or disabled
| offspring would also fail.
|
| Parental teaching and learning is a spectrum and not a binary.
| We've found with relocating deer (to similar but not identical
| environments) doing worse until learning occurs over a few
| generations and they catch up. Animals may not be as
| intelligent as us but their ability to learn and adapt should
| not be underestimated.
| devmor wrote:
| "In ovo" would be the egg-laying animal equivalent to "In
| utero"
| hinkley wrote:
| Frank Herbert would be so pleased.
| spockz wrote:
| Isn't this the whole plot behind Assassin's Creed's Animus
| where they are able to look into (and "interact ") with the
| past based on information in the cells/DNA.
| akira2501 wrote:
| > migration routes that animals know
|
| How do you know they "know" them?
|
| > all of these things can be encoded as chemical signalling
|
| Why do you presume they are chemical signals?
|
| > pattern matching
|
| Psychedelics show the absurd power of layered pattern matching
| in our brains and what happens when you disrupt those
| mechanisms. I would not discount it so readily.
| Supermancho wrote:
| > How do you know they "know" them?
|
| It's a statistical guess, as with most phenomena. When
| individuals, alone, consistently travel toward direction
| without observable prompting, it's expected there is another
| stimuli. This may be an unseen force (birds following
| magnetic fields). However, it appears there is a genetic
| component.
|
| https://archive.is/vt6rU#selection-797.2-797.236
|
| Notably: "They also inherit from their parents the directions
| in which they need to fly in the autumn and spring, and if
| the parents each have different genetically encoded
| directions, their offspring will end up with an intermediate
| direction."
| akira2501 wrote:
| > It's expected there is another stimuli
|
| Yes, and your link then identifies it:
|
| > They have at least three different compasses at their
| disposal: one allows them to extract information from the
| position of the sun in the sky, another uses the patterns
| of the stars at night, and the third is based on Earth's
| ever present magnetic field.
|
| They clearly do not "know" paths anymore than water "knows"
| what gravity is.
| int_19h wrote:
| Having a compass is one thing, but that only gives you
| the overall direction, not the specific path to follow.
| madaxe_again wrote:
| Yeah, there's fundamental stuff that animals just _don 't_
| know. Like cats have the instinct to hunt, and are good at
| that - but unless they've seen another cat eating prey, they
| don't realise that that's a thing that they can do, and you'd
| think that would be a pretty core learning to pass on.
| szundi wrote:
| Is this epigenetics?
| readthenotes1 wrote:
| "massed space effect" Obfuscation of cramming vs repetition (like
| graduated recall interval) training
|
| https://pubmed.ncbi.nlm.nih.gov/34519968/
| filoeleven wrote:
| This topic is related to the work of Michael Levin's lab, which I
| only recently found out about and have been digging into. They've
| released a bunch of papers, and Michael has given plenty of in-
| depth interviews available on YouTube. They're looking at low-
| level structures like cells and asking "what can be
| learned/achieved by viewing these structures as being intelligent
| agents?" The problem of memory is tied intricately with
| intelligence, and examples of it at these low levels are found
| throughout their work.
|
| The results of their experiments are surprising and intriguing:
| bringing cancer cells back into proper functioning, "anthrobots"
| self-assembling from throat tissue cells, malformed tadpoles
| becoming normal frogs, cells induced to make an eye by recruiting
| their neighbors...
|
| An excerpt from the link below: Our main model system is
| morphogenesis: the ability of multicellular bodies to self-
| assemble, repair, and improvise novel solutions to anatomical
| goals. We ask questions about the mechanisms required to achieve
| robust, multiscale, adaptive order in vivo, and about the
| algorithms sufficient to reproduce this capacity in other
| substrates. One of our unique specialties is the study of
| developmental bioelectricity: ways in which all cells connect in
| somatic electrical networks that store, process, and act on
| information to control large-scale body structure. Our lab
| creates and employs tools to read and edit the bioelectric code
| that guides the proto-cognitive computations of the body, much as
| neuroscientists are learning to read and write the mental content
| of the brain.
|
| https://drmichaellevin.org/
| agumonkey wrote:
| As a sidenote, Peter Reddien's lab did other studies on
| planaria (videos are on youtube) and found cells that are
| supposedly dedicated to map the whole body and indicate how
| differentiation should go in that area (basically one input to
| the morphogenesis of this animal). It was, after levin's work,
| another eye openener, as you kinda approach biology as an
| information problem... everything happening has a piece of data
| that explains it, we just didn't look everywhere.
| mmooss wrote:
| Here is the paper itself:
|
| https://www.nature.com/articles/s41467-024-53922-x
| jbverschoor wrote:
| Haven't read it myself, but heard about it many times. "The Body
| Remembers" ( https://www.amazon.com/Body-Remembers-
| Psychophysiology-Treat... )
| Vecr wrote:
| People are saying very weird things in the comments. To the
| extent that epigenetics transfers at all, they can't go very far.
|
| For past-life memories, uh no.
|
| For memories in non-brain tissues, there's a major detail problem
| there, if any of this pans out at all. For memories transferred
| from another person, it makes no sense. Your nerves don't
| transfer universal (between human) data files around, and your
| brain is a tangled mess. Memories won't transfer beyond, maybe,
| possibly, some stuff around personality, mood, and various
| neurotransmitter things.
|
| And I don't think it would be common, if it happens at all,
| without intentional development and use of new tech.
|
| For example it should theoretically be possible to recover the
| basic personality of a cryogenically vitrified brain, based quite
| a bit on genetics and some on brain structure, but beyond that I
| can't say. Unless you know many things I don't, and have
| carefully checked that you truly know them, you should not expect
| memory recovery, at least above the low double digits percentage.
|
| And that's assuming "full technology", I for sure don't know to
| even get started.
| numewhodis wrote:
| Which is why it is important to eat right and listen to the body.
| Memories can be activated without awareness, anywhere in the
| head, modulating the deliberate cognitive processing as well as
| whatever happens "in the back of the head".
| transfire wrote:
| Well L. Ron got that one right.
| nitwit005 wrote:
| The headline is nonsense. That the body "remembers" things is not
| news. My immune system remembers the cold I got.
|
| The source study states:
|
| > Our findings show that canonical features of memory do not
| necessarily depend on neural circuitry, but can be embedded in
| the dynamics of signaling cascades conserved across different
| cell types.
| xyst wrote:
| In so many words, this study basically described the immune
| system. Similar mechanism to how immune system is able to
| identify foreign bodies (virus, bacteria) and issue the
| appropriate response.
|
| Fundamental building blocks for vaccines.
| trallnag wrote:
| Interesting, reminds me of this article "Previous sexual partners
| affect offspring": https://time.com/3461485/how-previous-sexual-
| partners-affect...
|
| For example, if a female first has sex with very large virile
| males and absorbs their sperm packages and then gets fertilized
| by a tiny frail male, the offspring's size is on the larger side,
| determined by the previous sexual encounters.
|
| Not sure if there has been any followup on this research.
|
| https://doi.org/10.1111/ele.12373
| magneticnorth wrote:
| Note: This study was on a particular species of fly. I think
| that's an important detail left out of the one-sentence
| summary.
| mettamage wrote:
| Mitochondria are alive (also on the front page), memories are not
| only in the brain
|
| What's next?
|
| Exciting titles, I wonder what's behind them.
| rolph wrote:
| keep flogging dead paradigms, and you eventually get to a level
| of resolution that demands new ones
| bookstore-romeo wrote:
| Past conversation [0] on a SciAm article about basal cognition. I
| highly recommend the article [0]
| https://news.ycombinator.com/item?id=39127028
| alyx wrote:
| The physical body is what the mental state (ex, memories) "looks
| like" from a third person perspective.
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