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34 votes
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What are the advantages of forgetting?

Short answer It has been shown that loss of long-term memories may enhance the retrieval of others. Short-term working memory is explicitly designed to be volatile and non-lasting. However, there are ...
AliceD's user avatar
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18 votes
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Does human brain store duplicate data?

The way neuroscientists currently think about storage in the brain, it doesn't make any sense to think about "duplicate" data but rather about the "robustness" of a given memory to interference or ...
Bryan Krause's user avatar
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8 votes

What are the advantages of forgetting?

Memory is formed by building connections between nerve cells (i.e. neurons). These connections are called synapses. The synapses form a network between several (or tens or hundreds) of neurons, ...
hossein's user avatar
  • 97
7 votes

What are the advantages of forgetting?

One famous person, Solomon Shereshevsky, had an unusual ability to remember everything he encountered: sights, numbers, words in foreign languages, events from infancy, and more. Unfortunately, S’s ...
200_success's user avatar
5 votes
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If the Brain can store as much information as a billion hard disks why cant i memorize a single word document of random letters?

The brain is trained to remember patterns and predictable associations. Randomness is the absence of patterns, so it's the exact opposite of what the human brain is for. A human can remember random ...
bandybabboon's user avatar
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5 votes
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How to find the age of a memory stored in the brain?

We are only barely beginning to understand how the brain works, including memory. We do know that it is a very complex thing. There are many different kinds of memory; many different processes are ...
Oosaka's user avatar
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5 votes

What are the advantages of forgetting?

Who says it has to be good? We cannot assume that every trait that evolves is beneficial to the species. A lot of people assume that the species of an ecosystem will evolve optimally; that is, they ...
Kef Schecter's user avatar
5 votes
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Is the information in the brain stored in the connections rather than neurons?

Is the information in the Brain stored in the connections rather than in the neurons ? It depends on what information you are referring to. The brain does not just store one type of information,...
Keno's user avatar
  • 220
5 votes
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Does the creation of memory involve mRNAs crossing the synaptic gap?

I have never heard of this pathway. Memory is usually assoiciated with synaptic plasticity by ‘Long-term potentiation’ (LTP), which has glutamate as a neurotransmitter. Neuroscience Exploring the ...
Kez's user avatar
  • 66
4 votes

Does one memory cell take part in different memories?

According to engram theory: Yes. However, you need more than one cell to encode a memory engram. The idea is that the combination of cells encodes the memory, not the cells themselves. I am most ...
a tiger's user avatar
  • 481
3 votes

Can wood frogs who have frozen and thawed remember their past lives?

Wood frogs are highly philopatric to their breeding ponds. And the fact that they return to the same pond after multiple winters, would indicate that, at the very least, they must retain at least some ...
et is's user avatar
  • 1,214
3 votes

What are the advantages of forgetting?

What are the advantages of forgetting? Perhaps the question asked should be what is the disadvantage of remembering every little detail? The answer is cost. It cost energy/neuron to remember ...
JayCkat's user avatar
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2 votes
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Does Alzheimer affect more than day-to-day memory?

Oh, yes, though short-term memory loss is often an early sign. "For many, decline in non-memory aspects of cognition, such as word-finding, vision/spatial issues, and impaired reasoning or judgment,...
Draco Freon's user avatar
2 votes

What do memory cells actually do?

I think memory cells will efficiently do clonal expansion so that it can produce immune cells which can actually remove the pathogens quickly compared to the first time as it now remembers the method ...
Sarannya E's user avatar
2 votes

Neuroscience of confusion

Here's an article I found that seems to attempt to address this question, using a kind of machine-learning approach involving "Long Short-Term Memory" (LSTM)-Recurrent Neural Networks (RNN), to ...
James Dalton Rounds's user avatar
2 votes
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What percentage of the brain is memory | Storage of thoughts, episodes

It's difficult to say a number because memory and activity are intermixed. Activity induces long-term modifications in the brain wiring which can be considered as memory, but at the same time, those ...
heracho's user avatar
  • 737
2 votes

If the Brain can store as much information as a billion hard disks why cant i memorize a single word document of random letters?

Our brains usually make associations to different words including images, sounds, emotions, etc... which help reinforce the neurological patterns required to memorize sentences, etc... To remember ...
Ark Lomas's user avatar
  • 933
2 votes
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A question concerning the strength of synapses

What you are describing is exactly how long-term potentiation/LTP (or depression/LTD, for that matter) is measured electrophysiologically. Here's an example from a 1988 review by Nicoll et al: ...
Bryan Krause's user avatar
  • 46.1k
2 votes

Do hornets remember and recognize a human? Do they have any (kind of) memory?

Most studies show that a hornet will give off a hormone that tells others in its hive that you or someone else is target and threat to the colony as a whole. They also are able to remember their ...
G. Shepherd's user avatar
1 vote

Can we say that the better memory relation with pupil dilation is connected to sympathetic nervous system?

“Can we say that this is occurring due to activation of sympathetic nervous system which releases adrenaline and noradrenaline from nerves?” Of course not! All one has is an external observation. One ...
David's user avatar
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1 vote

Can we say that the better memory relation with pupil dilation is connected to sympathetic nervous system?

I would say what is accurate in this context is that pupil dilation is being used as a marker of sympathetic activation. Here's a review article about autonomic control of the pupil: McDougal, D. H., &...
Bryan Krause's user avatar
  • 46.1k
1 vote

Is there such a thing as 'genetic memory'?

There is an accepted form of "genetic memory" known as "epigenetics (wikipedia)", provided the concept is applied in accordance with scientific guidelines. For example, from this ...
X Zhang's user avatar
  • 354
1 vote

When recalling the same piece of memory in different times, are the brain activities different?

The term for the brain activity that corresponds to an experience is "neural representation". Neural representations "drift" over time. From https://elifesciences.org/articles/...
honi's user avatar
  • 193
1 vote

Does the brain store information and personality traits in different areas?

I think your confusion comes from the fact that you take traits and memory to be distinct from each other. The brain processes information and we know that some of the connections between its cells ...
vkehayas's user avatar
  • 1,264
1 vote

Is the information in the brain stored in the connections rather than neurons?

Grandmother Cells vs Distributed Representations The idea of a "grandmother cell" is effectively the ultimate in sparse representations: that there is one, single neuron in your brain that represents ...
Bryan Krause's user avatar
  • 46.1k
1 vote

Is the information in the brain stored in the connections rather than neurons?

The physiology of memory is still poorly understood, but there are some generalizations we can work with: There are four "types" of memory which the human brain works with. Sensory memory is very ...
Watercleave's user avatar
1 vote
Accepted

How many neurons are stimulated by electrodes in memory engram experiments?

edit: More directly answering the initial question, thank you, I misread what you wondered and was mislead a bit by a previous comment and your response to that comment. In these experiments, they ...
Bryan Krause's user avatar
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1 vote

Are memory updates local in mammals?

LTP and LTD are processes that operate on single synapses. We don't know how "memories" (there are several types of "memory") are encoded in the human nervous system. As a consequence, we don't yet ...
Dylan Richard Muir's user avatar
1 vote

Does my brain have limited learning capacity or memory?

Short answer is yes, the brain has a limited capacity. It's a large but limited physical system with numerous but countable connection, it follows that it must have a limited capacity. Learning wise,...
nico's user avatar
  • 240
1 vote

Does the creation of memory involve mRNAs crossing the synaptic gap?

Neurons have been shown to secrete exosomes (extracellular vesicles containing RNA) which may regulate neighbouring cells. However, this is mechanistically different from synaptic signalling by ...
WYSIWYG's user avatar
  • 35.6k

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