Memory and Sleep - PsyFile
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- Опубліковано 9 лют 2025
- Penny Lewis conducts research into sleep and memory. Book by Penney about sleep: www.palgrave.co...
University of Manchester School of Psychological Sciences: www.psych-sci.m...
Videos by Brady Haran
www.bradyharan....
A run-down of Brady's channels:
periodicvideos....
Extra links provided by Penny about her work:
www.psych-sci.m...
www.ncbi.nlm.ni...
www.ncbi.nlm.ni...
www.ncbi.nlm.ni...
www.ncbi.nlm.ni...
www.ncbi.nlm.ni...
www.ncbi.nlm.ni...
Anything by Brady = instant subscribe!
When I saw Brady had made this type of channel, I didn't even look at the videos that were up. I subscribed right away! I've been waiting for a channel like this
I really love these kind of channels. Sometimes I have actually lost sleep wondering how this kind of stuff works, so I'm glad thats there are places to find it out :)
you should do more about this sleep manipulation experiment. This is incredible!
Awesome! Thank you so much for making a psychology channel!
This channel needs wayyy more videos. I love psychology, it's so interesting!
I love these channels because even if I've heard these things before, it really makes a difference to be told by a more trustable source than just anywhere. I now take sleep more seriously, given that this a recent video from someone who clearly knows what they're talking about. Just the thing I needed before I go to bed, lol.
Every time I think of a question to ask the scientists, Brady immediately asks it. Almost every time.
I like this channel Brady, I'm looking forward to more videos on it!
Awesome another brady channel, subscribed right away. I have so many topics i love to know more of. Ego(self), subconscious, relationships(do we see other people as individuals or extensions from ourselves), hypnosis, emotions(i myself have an idea that every emotion we have is based on fear). So many! :) Keep on the good work!
Everywhere? Maybe it's just that great minds not only think alike, they also travel alike. ;^)
Good to see your name again.
Very interesting! I'm happy that there are new videos on this channel!
On a only very tangential note: She keeps SUCH intense eye contact with Brady or the the camera/the viewer... made me almost feel watched through the internet.
Somehow I always shy away after keeping eye contact for a short while :\
Sorry it's not really related to the video, but coming from numberphile, I feel here the people speaking look at you, or at us, with a more atentive look, I guess, almost as if they're peering into our soul and studying our reactions. I just love it.
I'm glad you still do the Breakfast question in order to check the audio. :)
Awesome video Brady! Thank you so much for all the work you put into your channels, they're all so interesting and fun to follow.
You are a good person to reply to and see my inbox with some insight, other times my inbox and notifications are of something different than topics like this. Its the weekend for me so have a great day to you too.
Part 3 Your best shot of recalling things when needed, with the use of such an idea though would be to elicit that same smell when you need to recall that information, because its likely that the information learnt and the smell would have some level of neural wiring between each other because in neural psychology the no1 rule is cells that fire together wire together
Fantastic content & excellent citations. I would be particularly interested in what Penny Lewis has to say about Polyphasic sleep!
Amazing start, I starting learning beyond my age when I was in late 14 (i'm 16 now). The sum of the deluge of information I learnt in the past 2 years is baffling (seriously, I'm experienced at things college students take), and if you start at 11 you'll surprise yourself and people much more than I did :D
I'm really loving these new videos. Keep it up Brady! :D
Very interesting :) I'm really gonna enjoy watching this channel of your Brady! Thanks for such great vids :)
Very interesting video!
This channel needs more views and subscribers!
I think recently an article was published that provided some information how (day)dreaming during a class actually improved the intake of knowledge.
I love the new channel. Please post more videos! I find this stuff fascinating :)
I've wondered this too. I hypothesize that it's actually an optimization instead of a space preservation. If all of you're memories had equal priority, then it might affect reaction time or other instances of recall.
The man that Rainman was based off of was mentally handicapped (to the point of requiring a caretaker), so his brain probably stored and processed memories differently. People with so-called 'photographic memories' would be better candidates for such a study.
You think so?
I think, her style of speaking is kind of hypnotic and very fascinating!
Penny's my psyfile crush, although James Clewett is still my top Brady Haran video crush.
i play guitar, most nights I sleep i imagine myself playing guitar, im playing chords that I dont know. i wake up with a tad more experience as a guitar player, really helps me experiment with notes
Hello, I love your videos! I hope you do more videos!!! I hope to do psychology at university!!! These videos help so much!
I can attest to the thing about the piano (and guitar.) I play until I seem to just not be learning anymore and then the next day I can play the same part better and then continue learning the song. It's a pretty neat phenomena.
Sometimes new ideas from existing things that I am writing and thinking about come to me when I am in bed sleeping. I wake from sleep thinking an idea in a way different than I had while I was awake. If I finish the idea to some extent while lieing in bed and then get up and write the idea down, I find that when I examine the written idea later that it is always from a perspective that was new to me. Also if I do not document the idea I find it very easy for it to be gone in the morning.
Penny Lewis and Meghan Gray, loves of my life.
Great video! Something about "consciousness" would be a nice subject for this channel.
I think dreams may be a way for the brain to do that condensing of and organizing of memory she mentioned - perhaps by mixing and matching different pieces of memory to see how they fit together. I have nothing to back that up, however, it is merely a hypothesis.
Really Interesting Channel! A video I'd like to see is, why can I express myself in writing better than verbally, what happens psychologically?
Please do a video on how the mind can become unconscious/tricked by illusions, etc.
For instance, sometimes we're searching for something and it's right infront of us and for some odd reason we DO NOT see it??? I would love a video on this matter. Thumbs up if you guys agree?
Hey Brady! Love your videos
The first thing that came to mind when hearing Sleep reset everything,and reinforced what you'd learned was
To complete installation, you need to restart the computer. Restart now?
I usually pick postpone... I blame the internet
Brady, can you tell these UoM lectures to tell their students about this channel?
Penny was my supervisor for a 3rd year project last year and Luke Jones is my supervisor for my MRes course and I had no idea that this channel even existed.
its weird because what she said at the end where you play a tape of what ever language you want to learn and you learn from it. because it re-activates similar brain ares. But before she said that during sleep because the brain isnt bombarded with impulses like it is through out the day, the brain can store the memories from that day.
This channel is awesome ! :)
I've always thought that dreams came from three causes. One of them is from our ancestors telling stories of hunted or hunter and the experiences of it. The next one is of memory replaying day to day life, another cause of dreaming is phobias(fears) or faith(hope) of something from either of the two. The last cause is of the collective mind or spirit realm.
I'm just guessing here, but intuitively, I would think it's because when you're communicating vocally, you have less time to form your sentences. When you're speaking to people you're expressing yourself on the fly. When writing you usually have more time to think of better ways to get your point across. I'd enjoy hearing these guys going more in-depth though.
1:28-1:35 i know nothing about psychology but you can see her pupils narrow a subtle move in her left cheek as she realised she said "learned" in stead of learnt. bless her =P
her eyes are hypnotic.
One of the worst things about the mind is that if it gets worried about something, it can create the very thing it is worried about. Sleep anxiety is a perfect example.
I would love to see a video about dreams (& maybe lucid dreams as many are very interested in that topic) and why it is that after sleeping 14+ hours I am more tired than I was before I went to bed :)
and perhaps add some notes to the video references some of the papers she is mentioning?
Part 1 Ill give this question a shot LOL. The first thing is that people with learning disabilities generally have a perception problem, in that they cannot effectively encode information to memory and so memories are not formed, this means that when trying to elicit that same information by using things like scents you've described then that information just wouldnt simply be there to be recalled.
That last part about the learning by association with a sensation was amazing. What I want to know is: when is the phone app coming out? :)
My 20 week old baby doesn't sleep well at all - 6-8 hrs a day. Will this have a detrimental effect on development of things learned/done that day?!?
Towards the end of the video, she mentions that memories are 'tied' to sounds and smells. Does this mean that deaf people or people without a sense of smell have a more difficult time remembering things? Am I totally off track here?
Could make you make a video on the relationship between language and thinking ?
Thank you :)
Part 2 But what i would say is that learnt with the smell at the time, if those smells are unfamiliar to you or are arousing then if you have perception of the smell when your asleep your recall for that information should be stronger.
So we should listen to tapes when we sleep to reinforce what we learned???? That ending left me hanging.
Extremely interesting!
Please does anyone of them know anything about Lucid Dreaming?
Thank you!
if i listen to a specific music while studing and then reproduce this same music during sleep does that make me "replay" my studing memories during sleep?
I shall look into the last thing mentioned...
Brady, may I request a video on memory methods such as Memory Palace?
I have a question for the psychologists: If I were to, say, sit in a room full of candles that smelled like grapes, or whatever, while simultaneously trying to study maths or language for several hours - then when I went to sleep that night burning another candle smelling of the same scent - would my brain bolster that memory so that I have retained more the next day? If so, could this be applied to learning disabilities?
Brady you have the greatest questions! How do you come up with them?
what if i would put in one earpiece playing the same song over and over again.. and then when i go to sleep i will play that song to over and over again.. will i dream/remember the whole day?
can you do a video on hypnosis? its a topic that has always interested me, I would love to know more
you guys should do an episode about the effects of sleep deprivation some time.
For example, before going to sleep. If there is something I need to do in the next day but it isn't exactly urgent or exciting, I focus on that thought, then I sleep and immediately after I awake that thought is the first to pop up before anything else. Is the last thought before sleeping stronger than the rest?
I don't remember posting this!
so, to learn better i can burn incense when doing something i want to learn then just burn it as i sleep; so i replay those memories?
The unusual setting may influence your ability to fall asleep as readily as you otherwise would, but once you're asleep that's no longer a problem.
I would like to ask in what stage of sleep does this "compressing" of memories/experieces happens.
Is a nap (under 30min.) enough?
Doesn't sleeping in a weird place with wires in your head affect your sleeping patterns? I know I wouldn't sleep the same in a research lab than at home. Do you have some way to account for that, or does that not factor in?
so if i do physics with some sort of smell or music, then go out and live my life then sleep with the same smell or music, the rate at wich i learn increases?
So, if the items replayed during dreams aid the preservation of those memories, does that mean one could use lucid dreaming as a study aid?
That last thing is really fascinating. Just more indication that the brain uses a lot of associations I suppose.
It means, it helps to sleep during pauses. Because you still have to listen to the actual subject matter.
This research does not support that specifically but other research indeed points to massive positive effects of power naps in between lessons. No kidding.
The most (emotion-related) memory is kept in you memory because we are connected that way for our own good (because if u felt hot, touching something u learned that that is bad 4 u), or in reverse.... That is why the scientist think that we think whit our heart! = emotion...
This might be a weird question, but the other day I had a pretty vivid dream where I must have convinced myself (in regards to a topic in school i am studying) that I was supposed to apply a formula/procedure differently that I had for sure learned the proper way the day before (or the day of my sleep). is this something normal or known and if it is, what is it? or did I just have a moment of insanity?
"the next obvious question you're going to ask is about dreams..."
YES! She *can* read our minds!
could you list all of your youtube channels?
What about lucid dreaming? For example, if we try and learn piano in a lucid dream, would that affect our skill-level in the conscious world?
What about polyphasic sleep? How does that affect memory?
My memory is awful. I mean really really really REALLY bad. I've found ways to cope with that in daily life, but yet, it's abysmal.
I also don't get anywhere near enough sleep. I seem to naturally need 10 hours of sleep, but most nights I get 4 or 5 at most, and often less.
I wonder if there's a connection between those two statements?
yay! a new video!
Does this mean I can improve my learning by having, say, lavender oil nearby while memorizing something and also on my pillow at night?
Got tested a few weeks ago. Sleep test. I failed.
Turns out I wake up 200 times a night and I only remember about 10 of them.
I kinda get what this is about.
Hmm interesting but what about nightmares what purpose do they serve? Also I noticed that if I take a sleeping pill it seems like I dream less, is that true?
I recommend optical illusions as a next theme.
It seems reasonable that dreams would be our consciousness trying to make sense of the replayed memories. The part of our brain that is responsible for our consciousness is very good at doing exactly this. When all it has to work with is "random" memories it's not surprising that it may get a bit weird. =)
I was out in the woods one day at sunset when a pair of owls started hooting back and forth above my head. It freaked me out. Later that night, my boyfriend woke me up and told me I was making owl sounds in my sleep.
Good thing professor Poliakov lead me to this channel. Its pretty darn interesting. Well.. looks like I have to subscribe to this channel, too, Brady :D
maybe some info about what happens to a person without sleep?
Also, Brady and psyfile, could we see some direct attention to behavior analysis? Had a semseter of behavioral psychology and it totally changed (and improved) my picture of why we do the things we do. Classic picture is the "Skinner box" -- I taught a rat how to press a lever, ha ha.
That test about the 2 lists of words sounds a little bit dubious to me. Did they verify that the subjects did not rehearse the first list while awake after being told they would be tested on it?
If you don't learn it in the first place, how are you supposed to remember it?
hey brady, a REALLY interesting video would be to ask these guys about LUCID DREAMING, btw, thanks for making a channel like this, i think 1/2 of the youtube subs i have are run by you :)
So what happens when you are awakened suddenly while your brain is on "memory replay"?
How come that I sleep on average 12 hours a day, but have a horrible memory?
This is awesome! More psych videos, please! :)
Do we get false memories or feelings because of dreaming?? Please make a video about it, thanks~!!
So what if hardly anything in my dreams relate to what I did that day?
That's not really a detraction...
the pruning of the excess and irrelevant connections to a particular nerve cell and keeping the main link strengthened is actually beneficial to memory. What you say also has been demonstrated in rats, and it even had before and after pictures, the neuron had about ~15 connections coming off of the soma and after sleep it dwindled to ~2 and the rat became better at the particular task.
It's like clearing the unnecessary paths for more efficient travel.