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Questions tagged [memory]

The processes by which environmental information is encoded, stored, and retrieved.

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How can different ion channels of the same type have different cell responses?

The NMDA receptor is an ion channel and contributes to synaptic plasticity and memory. It is said that calcium ion flux through the receptor is critical for this mechanism. However, there are other ...
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Can a memory trigger an reverse olfactory sensation?

The sense of smell is closely related to memory, which is why the smell can evoke even long-forgotten memories. But does the record of events, which is recalled in our memory, to the extent of an ...
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Can the natural loss of memory be modeled with a continuous function?

Disclaimer: I have little to no background in biology, so this question is based on anecdotal evidence. I've tried to spell out all of my suppositions, but please let me know if I'm making any leaps I'...
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How are innate reflexive thoughts passed down?

Human babies seem to know how to swim. They also have other innate behavior such as sucking thumbs, nipples, etc. and having a tight grip (to hold on to the mother). It seems that humans are not the ...
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What is long term memory? [duplicate]

What exactly is memory, biologically speaking? I am talking about long term memory. Is it some kind of synapses or some chemical?
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137 views

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

hornetology So it happens that a hornet (vespa crabro) flew inside my house today and now is being held in a plastic container (I made some holes to let it breathe). But it also happens not just this ...
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191 views

How to find the age of a memory stored in the brain?

Is there any way to find how old one's memory is? One can find the age of stones, plants, animals, etc. So why not find the age of a memory stored inside one's brain?
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What do memory cells actually do?

So I know that memory cells "remember" the most efficient way to kill a pathogen should it show up again... but what is the mechanism by which memory cells become activated by the second contact with ...
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How does the brain’s limbic system work together to form a working memory, short-term memory, and long-term memory?

In the past few days, I was reading about the limbic system and how its components (hippocampus, hypothalamus, thalamus, etc.) cooperate. Among papers and forum posts I read about how those ...
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Neuroscience of confusion

How does (neuro)science characterize "confusion" that occur to "healthy" persons when engaged on a particular mentally-intensive task? I would exclude the case where we are rationally and with clear ...
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1answer
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Does the brain store information and personality traits in different areas?

I'm aware that muscle memory, language etc can remain largely intact after brain injury that impairs other forms of memory, suggesting that different kinds of memory are stored in different places in ...
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Can memories intentionally be overwritten, or forgotten?

Over the years, I've come across studies (e.g., here, here, and here), and have watched documentaries (similar to this), that speak about memory retrieval, and how that, every time you recall a memory,...
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Does human brain store duplicate data?

There are several answers and articles about how the brain stores data, but none specifically cover whether a human's brain stores duplicate data. I was reading in this article that a human brain can ...
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How would you identify the independent variable in an experiment where it isn't specified? [closed]

I know that the above question is broad, but I specifically want an answer in terms of the following investigation - all of question 3 (ONLY) of this paper. The independent variable, according to ...
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How do place cells switch their response patterns when the subject moves to a different environment?

So I understand that place cells form a map of each environment the subject has been in and responds accordingly in each environment. Question is how do they switch to represent a different ...
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What are the advantages of forgetting?

How forgetting things is helpful for the brain or the human body biologically? This web page After some moment of being rude, selfish, or weak, either we are able to put it behind us, or the ...
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Does one memory cell take part in different memories?

Does one memory cell take part in different memories? For example, both in the visual memory of a bird and a monkey?
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Is the information in the brain stored in the connections rather than neurons?

Can I imagine the difference between the model of the grandma neuron and the model of interconnected neuron network so that the information isn't primarily stored in the neurons (respectively in their ...
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How is the beginning of an episodic memory encoded in the brain?

before asking how information is stored, I need to understand how does episode start and end are determined by the brain ? how do i remember a movie ? can you suggest a link to article addressing ...
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How many neurons are stimulated by electrodes in memory engram experiments?

Researchers have recently identified "engrams" in the mouse hippocampus, "sparse populations of neurons" or "small clusters of cells", stimulation of which elicits a specifically trained fear memory ...
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Are memory updates local in mammals?

What I mean is, during long term potentiation (LTP) or long term depression (LTD) for a particular memory, do the strengthening and/or weakening of neuronal connections only occur in a small patch of ...
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Memory capacity of the human brain in bytes? [closed]

Is there an estimate out there for how much memory (in bytes) an average human brain can have? Is there a physical limit?
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Does my brain have limited learning capacity or memory?

Lately in my free time I like to read books, articles etc etc.. What I have discovered, or maybe it is an illusion(lack of concentration or something), is that I usually forget most of the material ...
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Does the creation of memory involve mRNAs crossing the synaptic gap?

There is a diagram from a book titled "Teaching with the brain in mind". The diagram shows The diagram appears to show that the "creation of memory" involves "messages coded by RNA" moving through ...
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Does Alzheimer affect more than day-to-day memory?

I know that Alzheimer's damages a part of the brain called the hippocampus, which has a central role in day-to-day memory. But, could it affect also on things in other memory centers, things such as ...
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Are fishes evolving?

As far as I know, Fishing has been one of the important occupation since early ages, and infinite number of fishes have already been captured. As the time passes, they must've developed some sort of ...
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Access and decay time of long-term memory

As for STM (short-term memory), access time is 70 ms and decay time is 200 ms. Is there any calculated time for LTM (long-term memory) also? And does LTM really decay with the passage of time?
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Limits of brain neuronal spatial mapping

It is being claimed that brain maps the world space in (roughly) 1-to-1 correspondance of a place to a neuron (link1, link2). My question is: as the mapping happens in 1-to-1 manner, then is it ...
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How long a dog can remember its owner's smell?

Can dog remember multiple smells? and how long it can remember a smell?
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1answer
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Do butterflies pass over migration patterns to their offspring?

So, earlier, I read online (http://io9.com/butterflies-remember-a-mountain-that-hasnt-existed-for-509321799) that Monarch butterflies veer east during their southward migration to avoid a mountain ...
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1answer
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What kind of memory is “keyboard/keypad memory”?

I work in IT and I have observed many people who cannot remember their iPhone passwords or computer passwords off the top of their head. However, if presented with a keyboard or a phone with a ...
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1answer
84 views

classical conditioning paradigm for hippocampal learning

I wanted to know what a suitable classical conditioning experiment would be to analyze learning and memory capabilities in rodent models with respect to hippocampal long-term potentiation. For ...
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1answer
126 views

Oscillatory electrical system using a chain of neurons

Many daily activities that we perform are result of inbuilt oscillatory circuits in our body. For example walking, breathing, heart beat, blinking, etc. The coding and decoding of stored memory also ...
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1answer
91 views

Energy consumption of a resting synapse

What is the energy penalty of maintaining rarely used synapse? I'm wondering if forgetting is cheaper than remembering unnecessary details.
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Is it possible that weak memory is due to interference between signals in the brain?

"Weak memory", as used in this question, refers to the inability to retrieve a memory that a person otherwise knows he has memorized earlier. An example of this is some fact snippet that the ...
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490 views

What actually are thoughts? [closed]

The human brain consists of neurons that transmit impulses like wires that conduct electricity.I am confused about where are our thoughts stored and what really are thoughts? For example if I think ...
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1answer
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Is it a medical condition to not able to recall the word in a language while having a conversation [closed]

While having a conversation it happens to some peopl that clearly they know there exists a perfect word to be used but can not recall it during the conversation in real time and hence forced to use ...
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1answer
64 views

Can memory be improved with mental training? [closed]

I am a man in his mid thirties, but I already have a pretty bad memory. (I have always had a bad memory.) I can remember certain kinds of facts and music very well, but when it comes to words or even ...
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Can a human acquire a memory of an animal? [closed]

I would like to know if it's possible for a human to acquire an animal memory. I mean, animals store their memories in their brain, right? And so do we, humans, store our memory. So, is it possible ...
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What are limitations on the number of objects the eye determine at a glance?

Take two people Sam (average human) and Jack. Jack says to Sam "I'm going to show you some skittles (or other object) and I want you to tell me as quick as you can how many I'm holding." He opens ...
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Can human brain memory be removed by EMP?

The human brain is the most complicated human organ so it is hard to examine it completely but based on what we know do you think (or do you know from some source) if a human memory can be removed by ...
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Has DNA communication/interaction at a distance been empirically demonstrated?

I recently had a discussion with a statistician in my school about memory. Among other things, he told me that it has been experimentally demonstrated that when one extracts DNA from any organism and ...
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1answer
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Why do we suddenly forget things, like PIN or phone numbers, that we've known for years?

Is it common to forget a 4 or 5 numeric code which has been used extensively for months and well remembered? There's an article on the guardian describing this phenomenon and by the number of ...
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1answer
256 views

Is an Eidetic Memory (or other unusual forms of memory) less susceptible to anterograde amnesia?

I'm a physicist, so as a fellow scientist I want to apologize because this question will be entirely based on anecdotal inferences and I am well aware how irritating that can be. I have an eidetic ...
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What happens once a brain is full?

I just read the answer to this question, and it got me thinking... If the human brain (or any other brain) has a finite amount of storage, what would happen once the brain has taken in its maximum ...
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3answers
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How long does it take for memory to disperse after death?

1: There seem to be cases where coma patients with a non-active brain (i.e. flat EEG) have regained full consciousness. => Apparently memory and knowledge are stored independent of brain activity. 2: ...
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1answer
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The use of proteins in memory creation

I have very limited knowledge of how the human memory works as I think, at this time, most people do. However, I have been reading and some articles which say, and I quote the article just linked ...
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1answer
58 views

Do vitamins help our memory?

It is commonly believed that vitamins can help our memory. Is this really true? What is the biological basis of this? Is there any specific research paper on the subject?
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How to design an experiment with scent triggered memory recall in humans?

I've recently learned that scents can trigger memory recall in humans, and am thinking about setting up an experiment where I would attempt to induce memory recall through exposure to scents. In ...
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188 views

Can 'hardware' thermalization explain memory decay?

Often we are able to memorize very precise bits of information (exact addresses, birthdays of inlaws, number of dirty socks under the bed), but over time our recollection tends to become fuzzy. We no ...