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5
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0answers
57 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
78 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
votes
1answer
988 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
votes
2answers
122 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
75 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.
2
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0answers
185 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 ...
28
votes
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
votes
0answers
300 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
448 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
votes
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
votes
1answer
730 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
votes
2answers
312 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
votes
1answer
69 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
votes
1answer
199 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
vote
2answers
563 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
votes
0answers
38 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
votes
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
votes
0answers
245 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
votes
1answer
171 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
votes
1answer
135 views

How 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
vote
1answer
39 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
votes
1answer
400 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
votes
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 ...
1
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0answers
17 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
votes
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 ...