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The primary component of the central nervous system, which, along with the spinal cord, controls the body of bilaterally symmetrical beings.

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Can cognitive functioning of the human brain change the physical state of the brain?

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 ...
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1answer
12 views

Flow diversion for cerebral aneurysms or stabilizing the hemodynamics?

I'm doing research of flow diverter for cerebral aneurysms applications and I'm wondering the reason behind stent placement underneath of cerebral aneurysms is to divert the flow or stabilize the ...
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Is my blue the same as your blue?

Is it possible that colours are just something we think of in out brain and they look different. So basically if I see something that is red like a Ferrari, is it possible that you see what I think ...
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12 views

How do the neurons inside a frog's retina become able to detect features, for example edges?

I know that the retina of many animals can be thought of as a CNN - there are certain areas and layers inside the retina and the neurons fire so that after a few steps the brain receives that a ...
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2answers
158 views

Can a brain dead person recover?

Many times I have heard someone having to pull the plug because the patient was declared brain dead before the body healed fully? Why do they pull the plug without first waiting till the body/brain ...
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1answer
52 views

Its there a gene or genes for intelligence?

I don't know almost nothing of genetics but I felt a little interested in the subject of genetics and its role in intelligence and i found to reports that talk about certain genes that contribute to ...
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1answer
38 views

Why and how does falsifying sensory information work? [closed]

Some context, before the question: Whenever I have a craving to binge on something sugary, I just prepare a cup of extremely bitter green tea (with 3 bags of tea) and I imagine myself binging on ...
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1answer
60 views

Why is the hippocampus considered to be a cortical structure but not the amygdala?

I'm having some trouble understanding the anatomical differences that classify the hippocampus as a cortical structure but not the amygdala. I have included the screenshot of a diagram from Gray's ...
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1answer
44 views

If fully colorblind people only see shades of white,gray, and black, does that mean that the colors black, white, gray are colors humans can’t see? [closed]

And since the brain can be tricked to thinking that objects with mostly black and grey gradients are moving, like optical illusions, does that mean motion has a color?
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1answer
53 views

How do our eyes see an inverted image? [duplicate]

How exactly do our eyes see an inverted image of what we are looking at? Does it have something to do with the shape of our lens (i.e. convex)?
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0answers
19 views

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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17 views

Any volumetric data for areas of the brain?

I was trying to write an overview of AI and wanted to quantify some numerical data about the brain. It is easy to find many sources quoting 100 billion neurons. However, I would like to get the ...
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0answers
21 views

Camera and the eye (filtering information)

How does a camera recreate a very similar perceptual stimulus (through the photo) for us to see compared to the person directly viewing the object of interest with their eye? My questions stems from ...
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0answers
24 views

Are saturated fats beneficals for the brain's functions?

Are saturated fats beneficals for the brain's functions? if so, which kind of saturated fats? I found this information about medium-chain triglycerides (found in coconut oil), 1)it is smaller than ...
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1answer
41 views

Specific Neurons that Require Glucose

I've been doing a bit of armchair biology lately, and have been interested in the metabolic flexibility of neurons. My understanding is that, besides glucose, many neurons can metabolize lactic acid ...
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0answers
57 views

Where does the human brain drain to?

When a brain has a aneurysm and the patient survives untreated then where does that blood drain to or how is it absorbed? How is the pain perceived?
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1answer
32 views

What are ECT parameters?

ECT or shock treatment is used to treat psychological disorders. How much voltage, current and duration is used for this? Wikipedia mentions a treatment of 0.8 Ampere for 5 seconds.
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1answer
39 views

Lower affinity drugs longer time for pathways to rebound?

Do lower affinity drugs take a longer time for pathways to rebound? Affinity has to with strength of activating a receptor others options. Do those with stronger affinities result in more likelihood ...
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1answer
44 views

How fast does activity affect synaptogenesis?

How long does it take for the increased activity due to a novel stimulus to cause an increase in synapse generation? There are many studies which show that the number of synapses in the brain ...
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0answers
48 views

At what rate does synaptogenesis occur in adults?

From many articles, I can find the rate of synaptogenesis at its highest: roughly 580,000/minute (weeks 6-23 after conception). However, I'm having trouble finding the rate with which it occurs in ...
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1answer
165 views

Inverse Agonist vs Neutral Antagonist

Could somebody explain in simplest terms the difference between inverse agonist and neutral antagonist? Which one is more well natural and less likely to cause pathways to rebound? Does neutral mean ...
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1answer
49 views

Can you extract specific data from EEG

First of all, sorry if this is the wrong place to ask this question, please redirect me if it is so. I have a project in mind involving and EEG, which is the following : Using a "consumer-grade" EEG ...
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0answers
21 views

Why does doing more physical labour reduce the prevalence of disorders like OCD?

This just an observation without any study backing it. But people who do more physical labour as opposed to sitting at the couch really do have less rates of OCD. Why this association of physical work ...
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16 views
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63 views

Do brain consume more energy when stressed or Anxious

When a person is anxious or stressed or suffering from chronic depression, it is observed that the person is usually tired. Is there there a connection between fatigue and racing thoughts/obsessions. ...
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1answer
58 views

Why do you get prion diseases from eating animal brains but not other parts of the animal?

Eating animal brains is considered a delicacy in parts of China. We know that eating animal brains can lead to prion related diseases. Prions are misfolded proteins that are potentially infectious. ...
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1answer
403 views

What does +60mm mean in MRI scans?

What do the -30 to +60mm markings mean in this MRI scan image?
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1answer
38 views

How do we see and/or detect neurons? [closed]

I'm curious as to how we "see" neurons, for lack of a better term. Is it the detection of the neuro-transmitters? Can we literally see the electricity firing and moving throughout the pathways? Is it ...
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1answer
73 views

Which kind of electrical brain activity is associated with consciousness and why?

According to this article The ethical brain At the end of the week 5 into the 6 (42-43 days) the first electrical brain activity occurs in a pre-born developing human. And according to the same ...
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1answer
52 views

Consistency of consciouness [closed]

So I was wondering if consciousness is continous and I found out it might not be the case. But in that case it begs a question, what if in every frame of consciousness my old me dies and new is reborn ...
2
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1answer
25 views

What do the column labels in this table mean?

This table shows the effect of sound (song and tones) on female birds. However, I'm not sure what the labels (F1 22, P and η2) mean. I've seen the labels on other tables too. (from https://www.ncbi....
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1answer
40 views

Why is the nucleus accumbens in that place?

This description of where the nucleus accumbens is (Ac) says that it should be near the lateral ventricle, when it is quite clearly very far away? How is this? the region surrounding the tip of the ...
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1answer
46 views

What is this type of diagram called and how to interpret?

I'm just starting a project on neuroscience for sixth form. I have had no teaching in this area so had to teach myself entirely. This is a "low-power image of a transverse section through the ...
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1answer
47 views

Are there any known rules that neurons always follow while transmitting/receiving signals?

I'm new to neurobiology so I don't know much about it. However, I have worked on artificial neural networks. Man-made AI networks all follow a handful of simple rules. I was wondering if biological ...
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1answer
55 views

A Brain Implant improves memory--but how?

https://www.nytimes.com/2018/02/06/health/brain-implant-memory.html A new therapy could improve memory by "sending electrical pulses to aid the brain when it is struggling to store new information." ...
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21 views

What are the differences (if any) in brain activity when hallucinating versus perceiving a real object?

I was wondering if there is difference in brain activity when someone is hallucinating an object, say a giraffe compared to when someone is genuinely observing a real giraffe?
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25 views

Do cells store information other than permanent (chromosome) information

The brain stores information in neurons (i.e. neural networks), and cells store information in DNA. But with DNA, this is permanent information. There is a lot of potential temporary information in ...
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1answer
105 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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2answers
32 views

What is the heritability of brain gyrification?

Brains of mammals with a folded neocortex do not have identical patterns of folding in the same species. Do two genetically identical individuals of a species have the same pattern of brain ...
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0answers
14 views

Acetylcholine leakage [duplicate]

I am currently studying pharmacology, and a question came to mind. We know that acetylcholine is used as a neurotransmitter in the neuromuscular junction, both in the sympathetic system as well as ...
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1answer
47 views

What is the difference between how motor function is controlled in cerebrum vs frontal lobe?

At least according to wikipedia, the frontal lobe houses the primary motor cortex, but in a different article about the cerebellum, it says the cerebellum controls motor function. So, do both parts ...
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0answers
12 views

Processing of speech/non-speech sounds in the human brain

I have a ""which came first: the chicken or the egg?"-kind of question regarding the processing and understanding of speech / non-speech sounds in the human brain. I'm wondering whether speech and ...
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0answers
11 views

Synapse Potential and Subjective Intensity

An assumption that I'd been making that I only recently realized was rather unfounded: is synapse potential/brain activity strongly correlated with the subjective intensity of sensation? Say, if I ...
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1answer
259 views

Why ambidextrous persons are so rare?

According to this article, only about 1% of all humans are ambidextrous: About 90 percent of people are right-handed, says Corballis. The remaining 10 percent are either left-handed or some ...
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1answer
55 views

Dopamine involvement in pleasure

There are some psychologists who believe that dopamine is not released during pleasurable activities but before them; my understanding is that a little dopamine is released pre-reward in order to ...
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0answers
451 views

Is there any danger in putting a magnet in your ear (next to your brain)

I recently bought some wireless earbuds that fit right in my ear, so they're very small. But the method it uses for charging is magnetic, so it has magnets built into the earbud. I was wondering if ...
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1answer
169 views

What is the exact frequency of Delta brain waves during Slow Wave NREM Sleep?

I saw a TED talk about researchers playing pulsating pink noise while a test subject is in Stage 3 Non-REM / Slow Wave / Deep sleep and observing an increase in Delta wave EEG activity. This seems to ...
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1answer
60 views

Does severing the Corpus callosum, effect the brain's communicating ability?

With serious epileptic seizures, a treatment is to sever the corpus callosum, which stops the seizures. However, does this affect the communicating ability between the two hemispheres? Or how does ...
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1answer
66 views

Is it possible to lose weight doing brain exercise?

According to this article human brain consume a comparable amount of energy with skeletal muscle. So is it possible to do some brain exercise (calculate something in mind etc.) instead of physical ...
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1answer
50 views

What happens to the language processing brain part if no language is ever learned?

Language is processed in the human brain in multiple regions. Some of them seem to be used exclusively or mainly for language processing, other regions are distributed overlapping with other functions....