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Society & Culture The reliability of memory

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philohk

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I was thinking (after an exchange in the ghosts thread) about how unreliable memory can be. For example, we've all heard how unreliable eyewitness accounts to anything generally are, and how much they conflict. I've heard and experienced things that show it's in general just a very poor tool for certain situations.

A mate of mine did some psych at uni and told me (and I hope I'm telling it properly) he experimented with planting false memories - only on minor things, obviously. Basically, he and his partners would get students in with their parents (parents were in on it) and ask if they remembered certain events that hadn't actually happened - e.g. buying a certain ice cream from a certain stall on a certain beach visit, things like that. The students would, eventually, almost all say they remembered, and would often add details to the story. They'd then be debriefed so they didn't wander round with false memories, however minor.

This was interesting to my mate because he has a vivid memory of when he was a kid and was on the train with his mum (or maybe mom - he's Canadian, eh!) and a guy rushing to get on got his arm stuck in the door while the rest of him was outside the train. The train moved off and the guy was frantically running alongside with his arm flailing in the carriage. Years later, he talked to his mum about it, and she told him it never happened. And let's face it, that's not the kind of thing you forget if you see it.

When he told me this, I remembered a similar thing: I was with my mum and brother one day when I was about 5, and I saw a car (I even remember what the car looked like - it was black, and I now 'remember' it was a Morris Minor by the shape) that had rolled down an embankment and hit a tree. There was an old guy in the driver's seat slumped over the steering wheel, facing out the driver's side window, eyes open and staring into the distance, clearly dead. I pointed it out to mum as we walked past and asked if he was dead, and she said not to worry and that he was probably just waiting for his wife to come back with their shopping.

Years later, when I was still young enough to remember it clearly but old enough to question whether it had actually happened, I asked my mum about it. She thought I was mad.

So how about you guys? Any odd (perhaps macabre, if you're like me and my mate) 'memories' that you doubt happened?
 
Not macabre things, but I have had conversations with my parents about things where my version is quite different from theirs. I was adamant in my own mind that I remembered properly but I checked with my older brothers and sisters and I had remembered things incorrectly.

I actually have a very good memory and come in handy at quiz nights, but memories of personal experiences can at times be unreliable.

When I talk to old school mates (we are now all in our 44th year), we often have different recollections of the same event.
 
Saw an interesting test on a show analysing UFO sightings. Got a group of people with cameras on their hats, making up some story to explain them, took them on a hike during which they passed by a man in a military uniform holding a gun. Waited a few hours then interviewed them, and all had either added details themselves to what they saw, or were susceptible to implantation by the reseachers. One man standing quietly became one man yelling at them that it was a restricted area or several heavily armed men, for example. Then they were shown the camera feeds, which recorded what they'd really seen.

Of course, I saw this doco years ago and my memory may not be that reliable, but that's the basic gist of the experiment.
 
I was thinking (after an exchange in the ghosts thread) about how unreliable memory can be. For example, we've all heard how unreliable eyewitness accounts to anything generally are, and how much they conflict. I've heard and experienced things that show it's in general just a very poor tool for certain situations.

Yeah like when you buy gunja and spilt it up so all your eggs aren't in one basket. When you finish the 1st stash you can never find the others. :(
 

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I remember a Mythbusters episode where they got two delivery guys to come in and have an argument with Jamie and Adam and then afterwards gave Tory, Grant and Kari a quiz on the incident. Then later put them under hypnosis and asked them again. Their memories were way better under hypnosis.
 
Had a conversation with my boss a fortnight after September 11 (2001).
He told me that as the attacks happened, he was having a telephone conversation with a friend at the Gnangara (Perth) Satellite receiving station, who saw the images as they were coming in, and told him to watch ABC. So he turned the TV on to ABC and saw the 2nd plane crash into the twin towers live.

I told him that ABC didn't switch over to their broadcast of the event until after both towers had already been hit - maybe he saw a replay of the event, but definitely not live.

He was adament - he had seen the 2nd plane hit live on ABC. No question, no doubt.

I told him no he didn't. I could prove this because I happened to be recording ABC at the time (TV series: Lock, Stock :)), and actually had on video the ABC's broadcast with the first 60 seconds or so of Lock, Stock, then the "newsflash" interruption when they said 2 planes had hit and they were now going live to NY.


This boss was a highly intelligent guy, and this was only 2 weeks after the event. I have no doubt he honestly "remembered" seeing it live, until I showed him the video recording I had. Just goes to show the subjectiveness of memory.
 
Pretty sure this is the stuff that psychologists Bartlett and Loftus focussed on. Reconstructive Theory?

I thinks its kind of proven that humans somewhat subconsciously alter their memory so that it relates to their own personal values and beliefs.
 
Pretty sure this is the stuff that psychologists Bartlett and Loftus focussed on. Reconstructive Theory?

I thinks its kind of proven that humans somewhat subconsciously alter their memory so that it relates to their own personal values and beliefs.

Yup, which is why Psychics and Fortune Tellers can seem 'believable' - people want to mold what the person's telling them into things relevant to them.
 
I clearly remember me and my brother exploring a recently crashed bus in the town where my granny lived. It was a green bus and the windows were all broken and it was covered in blood.

But it must be a false memory/dream. There's no way the emergency services would leave a crashed bus just lying by the roadside for kids to play on.
 
The main thing that happens to me is after I've been drinking and can't remember if something actually happened or:
a) I made it up
b) Had a dream about it
 

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