Live data from Hacker News

First recording of a dying human brain shows waves similar to memory flashbacks (2022)

louisville.edu

231–240 of 299 posts

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#231
post #18

When I was around 15, I used to hang out with a guy who was much senior to me, and he would bully us sometimes. One day, when we were bantering, I cracked a joke that a third guy with us (who was my age) found funny and crackled. The bully grabbed my neck and choked me till I lost consciousness. I remember having memory flashbacks related to missing a train, and someone waiting at the wagon door, waving at me to hurr…

[flagged]

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#232
post #206
post #98

Earlier quoted context omitted.

Had the same experience, what scared the crap out of me is that feeling of not even knowing you're out is how some people spend their last moment. Not just in surgery for example but in extreme other situations (nukes, titan sub, piano to the head, etc)... You're just there then you aren't and you don't even know. Shook me (lightly) for a while

That's basically sleep for me. I know I must dream but I only very rarely even remember the smallest fragment of any dreams. So sleeping is like I've not existed for 7 hours from my conscious perspective.

Same with me, check yourself for sleep apnea and "sugar crash" during sleep if you can...

Interestingly some medications like tadalafil restore my dreams... My smart watch also tells me the phases like remand deep have normal lengths. So I'm not sure why it is so rare for me to dream, but I suspect low glucose or oxygen may have something to do with it.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#233
post #102
post #98

Earlier quoted context omitted.

Had the same experience, what scared the crap out of me is that feeling of not even knowing you're out is how some people spend their last moment. Not just in surgery for example but in extreme other situations (nukes, titan sub, piano to the head, etc)... You're just there then you aren't and you don't even know. Shook me (lightly) for a while

Honestly it doesn’t sound too bad to me. Just blinking out of existence. No pain, no regret. So what’s there to be scared of?

It's such a waste. You're there with all your personality and you're gone the next. It is quite bad. That's why I think religions came up with an idea of hell...

One may think, any existence is better than nothing.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#234
post #102

Earlier quoted context omitted.

Honestly it doesn’t sound too bad to me. Just blinking out of existence. No pain, no regret. So what’s there to be scared of?

It's such a waste. You're there with all your personality and you're gone the next. It is quite bad. That's why I think religions came up with an idea of hell... One may think, any existence is better than nothing.

But think of the legacy of all the shareholder value you created...

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#235
post #94

Earlier quoted context omitted.

IIRC this is a misconception and bullies bully strategically to climb the social ladder and benefit from it. It's possible that they do it because they learned pathological systems of behaviour from pathological family/social experiences, but even if fighting back against them is also shitty, it beats enabling them to keep doing it (especially to you)

No, that is absolutely not a misconception, and is backed by peer reviewed research such as https://www.hks.harvard.edu/publications/why-stigmatized-ado... . What you may be thinking of is research showing that when kids get to know each other, the ones who will become socially dominant tend to be aggressive early. But once they achieve social status, they usually turn around and become far nicer. With further aggres…

"further aggression limited to those who have not accepted their dominance" doesn't sound anything at all like "turning around" to me.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#236

Not exactly the topic - but I went through a strange consciousness bottleneck during a near death experience (in risk terms, not in the medical death sense), in which I was extremely lucky. A car I was driving to a parking area for someone had incredibly loose steering, and I lost some traction on a tight turn on a country highway that had been covered with gravel. As I straighten out of the turn I was heading straig…

Wow, thank you for sharing this. Kudos on surviving this.

I had an interesting experience during a high speed car crash years ago.

I was driving on a newly built motorway going south from Gdansk(in Poland) around 2am, in the rain in a very old rented VW Golf.

Before, when I got to the (cheap)rental place the seatbelt on the driver's side was caught behind the interior plastic panel. The guy that owned the place looked at me (wearing a suit, I just gotten off a plane) and said "You don't mind driving without a seatbelt don't you? This is the only car I can give you." To which I replied "no way", and "do you have a screwdriver"?

Then I proceeded to take off that interior panel. I freed the seatbelt and got on my way. This has saved me from very serious injury.

So, coming back to that moment. I'm driving at around 140kmh (which is normal speed at these roads, only 30kmh over limit). It is raining. I'm coming over a gentle curve and I see red lights of a big truck in my lane, so I flip the indicator with intention to overtake it (still maybe 300m away). As I'm changing lanes closing on it around that gentle long curve I suddenly see there is another set of lights in the left lane in front of the truck. That driver must have got startled by my lights because the moment I saw him his brake lights lit up (and I'm accelerating maybe 150m behind, gaining on him fast). I have to brake hard. I know my Golf at home with my tires would make it. This one didn't.

I lost maybe a third of the speed when it started fishtailing strong. By the time the other cars moved far enough so I could let go the brakes a bit, but instead of straightening it, the car spun sideways and slammed into the barrier.

I remember braking, turning, counter steering like in slow motion, then the last moment once car spun and was just about to hit I thought "That is going to hurt". Last thing I remember was a feeling of surprise how "soft" the crash felt.

I expected to feel a hard slam, it felt like I jumped into a soft bed and suddenly darkness and I feel wet on my hair. An instantaneous transition like in a movie. My first thought is "blood, I'm seriously injured", but no, this was rain. Suddenly I see some light and I remember I sit in a dark smashed up car in a middle of a motorway (it bounced off the barrier) over a hill and another car is quickly approaching without seeing me....

So I jump out of this car and (I didn't feel any injury with so much adrenalin) I push the screeching lump of metal on the driver side pillar as hard as I can, trying to get it off at least the left lane.

Thankfully the other driver saw me from far away, could slow down and stop in time. He helped me push the car onto the shoulder.

When police and ambulance came. The Police guy looked at the car, looked at me and said "where is the driver?" I said "I am" and he says "are you sure? If you're pretending for someone drunk that escaped it is a criminal offense"... Other than few scratches I was completely uninjured. The car looked horrible.

The police guy also said "we're having accidents on this stretch of the road every time it rains, they are going to replace the surface so I'm not going to fine you"... Well, good to know. They did rip it out few months later.

I estimate I couldn't be going that fast during that crash, as I was fine, or maybe I was lucky, but the car was totalled. I remember I paid £750 to the rental guy. That is how much the car was worth in it's entirety...

I'm very happy to this day I've asked for that screwdriver and I fixed that seatbelt.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#237
post #18

When I was around 15, I used to hang out with a guy who was much senior to me, and he would bully us sometimes. One day, when we were bantering, I cracked a joke that a third guy with us (who was my age) found funny and crackled. The bully grabbed my neck and choked me till I lost consciousness. I remember having memory flashbacks related to missing a train, and someone waiting at the wagon door, waving at me to hurr…

Essentially, the brain is doing a last-ditch systems check — replaying memories, emotional anchors, and learned survival cues to find any relevant information or pattern that might aid escape or coping.

Re: First recording of a dying human brain shows waves similar to memory flashbacks (2022)

#240

I wonder if it also happens to people with aphantasia, who are unable to visualize things in their head.

The article doesn’t specifically mention activity in the visual cortex, just waves associated with memory retrieval.
Post reply on HN