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Questions tagged [cognition]

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0
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1answer
18 views

Are there studies on the effect of reduced CO2 levels on human cognition?

I see studies that indicate elevated CO2 levels (>>400ppm) can cause cognitive impairment. Are there also studies that investigate the effects of cognition under low CO2 levels (<<400ppm)?
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0answers
11 views

How to find papers about voltage imaging (with GEVI) for human brain research?

I would like to follow the Nature article https://www.nature.com/articles/d41586-018-06694-6 about voltage imaging of brains, about use of GEVI - Genetically Encoded Voltage Indicators. But I am ...
5
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0answers
64 views

Can cognitive functioning of the human brain change the physical state of the brain? [closed]

Can cognitive functioning of the human brain change the physical state of the brain? E.g. does self-awareness, self-reflection change the number of neurons or synapses among neurons? I.e. I am trying ...
1
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1answer
81 views

Do axonal conduction delays have a function?

I'm reading about mathematical models of biological neural networks, which can be grouped into two categories: The model accounts for the fact that a signal takes time to travel from the excitatory ...
6
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1answer
1k views

Why is it that I can understand speech through one ear better than the other ear?

First, I do a lot of music so I'm used to pick up details in sound and I have had hearing tests showing that my ears are quite well balanced, for my age, without any dead spots. When I am in a social ...
8
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2answers
141 views

Does the brain process sound in “clips” or “frames”?

I've always been under the impression that our brains process images (relayed to it via the eyes) at a particular frequency or "framerate"; this is supported by lots of sources, such as this one. I'm ...
2
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0answers
127 views

Can LSD in very small amounts increase mental ability?

Can one take a small amount of LSD(acid) and not trip but still benefit from the intended purpose? It was said the military invented it for extra sensory abilities. It has also been said it could ...
2
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0answers
201 views

Why are some animals so much more intelligent than others? [closed]

From what I found many biologists state that animals living in large social groups (elephants, primates, cetaceans etc.) have a tendency for improved cognitive abilities. Yet at the same time there ...
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5answers
8k views

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 ...
2
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0answers
363 views

How do birds decide which branch to land on? [closed]

What factors do they weigh on? Shape, position of branch within the tree body/structure, fatigue, nearness to current position, etc. And how fast does a bird's brain and nervous system decide on this?...
1
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0answers
495 views

Is the human eye supposed to see the lense effect?

Just as the GoPro cameras, we need lenses to be able to focus. Nevertheless, we can see the "fisheye effect" on the shots taken by GoPros. I am talking about this: Is it possible to notice the "fish ...
6
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3answers
1k views

The concept of backpropagation in neural networks actually occurs in the brain?

I am aware the Human brain has many functionally distinct components, but let us specifically consider the Human visual cortex: could Artificial Neural Networks (ANNs) be "trained" (through, e.g. ...
4
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1answer
918 views

Why do we like to touch fluffy things?

I read this article but it didn't explain much. Is the fact people like to cuddle pets with fur connected anyhow with our past when our ancestors had fur as well - and therefore could evolve an ...
4
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2answers
357 views

Does caffeine actually enhance cognition?

I have heard, respectively: Caffeine measurably enhances cognitive function. Caffeine does not measurably enhance cognitive function in any significant way. Caffeine enhances cognitive function, but ...
4
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1answer
70 views

What other cognitive behaviors in bees, outside of navigation, are affect by neonicotinoids

It is conclusive that neonicotinoids alter navigation in bees when locating food sources. http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0091364 But if so, shouldn't cognition also ...
4
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1answer
241 views

How can binaural beats change mental state?

Can anyone tell me how binaural beats of 10 Hz can cause a person to calm down and one of 40 Hz to cause someone to heighten their attention. All I know is that they work on the principal of Brainwave ...
1
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2answers
635 views

Is there a difference between visual sensation and imagination in the brain?

How substantial is the difference between the neural signal associated with seeing an image and the imagination of that image? Surely, it can not entirely copy the pathway from the sensory organs to ...
2
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0answers
40 views

Does music enhance neural activity/cognitive or cerebral function, or is it just mania? [closed]

I always find myself drew upon curiosity whilst studying, to whether certain types of music are or are not, effecting me in a sense of cognitive ability. Take a fantastic piece such as, Mozart's, ...
8
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2answers
2k views

Do we use 100% of our cerebral capacity?

I saw a movie yesterday called Lucy. In this movie, a girl called Lucy absorbs a large amount of CPH4, and her brain capacity slowly increases. So that brings me to my question which is : Do we ...
5
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0answers
271 views

Is hunger pushing cognitive ability in humans? [closed]

We have a lot of those questions here that base on personal anecdotes and I try to avoid asking any of those. Still, after skipping breakfast and an extremely effective work day so far I started ...
0
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1answer
177 views

How does the partial pressure of oxygen affect mental focus?

On this Wikipedia page it says that lower oxygen levels can cause light-headedness. Is there evidence that higher partial pressure of oxygen can improve mental focus?
5
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1answer
146 views

How do we share pain?

When somebody else tells me about his or her itching or pain in some specific body part, I sometimes begin to feel similar feelings. I can think of about three explanations: I feel pain all over my ...
1
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1answer
42 views

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 ...
4
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1answer
404 views

How could be the “Eurasian magpie” bird won the “Mirror Test” where Gorillas failed

EURASIAN MAGPIE VS GORILLA VS How could be the "Eurasian magpie" bird won the "Mirror Test" where Gorillas failed ? In 1982, mirror tests on two, zoo-reared gorillas failed to demonstrate ...
11
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2answers
1k views

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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0answers
19 views

Which pathways/mechanisms could control some Synaptic clefts in series by Somatic Nervous System?

I listened a talk where the speaker said that this can probably be possible by Weak Quantum Cognition Theory. I see that there is no evidence at the moment, only theory. I see no pathways by which ...
5
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2answers
1k views

Is life expectancy linked to intelligence in animals?

For example, animals that live only a few days or a few years are often not very intelligent. In contrast, the most intelligent animals seem to live longer. Is this true? Are there any studies to ...