Questions tagged [brain]

Questions pertaining to the brain: an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity.

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62 views

Does a single brain lobe (e.g. parietal lobe) heat more than others during processing tasks that are related to it?

Of course, our brains are the most powerful, stabilized processors. And they don't go outside of their temperature thresholds under normal / even abnormal(till some threshold) conditions. I felt like ...
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60 views

Are there no threats and only benefits for using hyperbaric oxygen therapy?

Following this story and many others, I read articles that hyperbaric oxygen therapy can help people with brain damage but can also help healthy people. I heard that hyperbaric oxygen therapy can ...
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1answer
86 views

If your brain tells you that you hear ringing in you ears, tininitus, why is it so difficult to tell it to stop?

Why is it that some people have tinnitus and some don't. Sometimes I feel like I'm so isolated because of the noise in my head. I can't make it stop and it's difficult to push through so I can hear.
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45 views

Postconcussion symptoms: how long? Are they reversible? Treatment options?

I had an accident 7 days ago and I have been suffering from short term memory loss for about a week now. I can't remember anything from the accident or the day before it. Also, I suffer from headaches ...
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1answer
83 views

Reducing trauma from surgery prohibiting sedation

I've noticed something a bit worrying about the way certain surgeries are performed, and I was wondering if there is a better way: During surgery, medications are administered to induce ...
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61 views

How to improve memorizing ability?

I'm a student, how can I improve my memory ? Also, I heard that Matcha tea is good for students, is that true?
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54 views

Can someone die from not sleeping? [closed]

I know this sounds like a weird question, but is it possible for someone not sleeping to die? What are all the negative consequences of not sleeping for long periods of time? Do you have any tips for ...
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38 views

Why are antidepressants considered the most successful therapy of fibromyalgia?

Fibromyalgia is classed as a disorder of pain processing due to abnormalities in how pain signals are processed in the central nervous system. 1 Antidepressants are now the most widely studied and, ...
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39 views

Why does the brain shrink and increase energy usage after dehydration?

Along with mood and energy deficits a dehydrated brain has to use a lot more energy to accomplish the same tasks, shows a study from King's College London. Quote from Dehydration affects brain ...
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59 views

Are transorbital lobotomies still considered ethical these days?

Psychosurgery has a controversial history and despite modifications still raises serious questions about benefit, risks, and the adequacy with which consent is obtained. Its continued use is defended ...
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56 views

Are there side effects of listening to binaural sounds? [closed]

I have started listening to binaural sounds (left side wave of 89.75hz, right side wave of 85.25hz) for meditation every day for 10 to 15 mins in morning. I feel calm, relaxed and focused after that. ...
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55 views

Why do we sleep? [closed]

I was reading many things about sleep. But I am very curious about knowing why do we sleep. Is it only for trashing out toxic materials or is it anything else?
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271 views

How common is CTE in normal adults?

How common is chronic traumatic encephalopathy (CTE) in normal adults who don't have obvious risk factors such as high-impact sports? Have there been any studies done on the normal population as ...
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55 views

How to handle overthinking and being nervous all the time [closed]

I'm an application developer with little experience. I recently graduated from university and now I work as a app/game developer. My issue is that every time I get a new task or project I get very ...
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63 views

Need help with Dementia Hackathon Idea (Professionals experienced with dealing with Dementia patients appreicated!)

Me and my team are planning to go to a Dementia based Hackathon early March and since this is our first actual hackathon we were wondering if you could provide some advice regarding our idea. Here's ...
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79 views

Altitude Sickness & Brain Damage

I stumbled on an article about altitude sickness and causing permanent brain damage; is there validity to this for less extreme mountaineers? It is common for Colorado front rangers to ascend up a 14,...
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54 views

Are moving “ghosts” after waking up normal or it is sign of disorder? [closed]

Sometimes when I wake up I see moving silhouette of a human in my room. It lasts roughly 3–4 seconds. Then it fades away. These silhouettes have no detail, so I cannot sort out its faces or any ...
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38 views

Cerebellar tonsil herniation measurement level?

In my MRI scan result the cerebellar tonsil detected had a measurement of 0.50 mm through the foremen magnum. Is this condition considered normal for a tall person or is it considered the beginning of ...
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103 views

Takes a while to decipher what people say, something wrong with my brain? [closed]

Sometimes, when people talk to me, I hear the words immediately but it then takes me longer than expected to decode those words and respond appropriately. This leads to odd pauses and I look a little ...
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1answer
168 views

Looking for studies about how blood pressure changes are perceived by our brain

More specifically, I'm looking for how the brain perceives its own local blood pressure changes if it does and what are the mechanisms/reactions involved in this process if any are known to date. I'm ...
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1answer
83 views

Fainted history in both myself and my father. Can it be related?

I am a twenty five year old male, pretty fit, no known conditions. I fainted last night for a few seconds and although I will get it checked out, it has to wait for a week or two so I thought I'd get ...
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1answer
298 views

What are the functions of these parts of the brain (MRI)?

This is an MRI images of my brain. There are three red arrows pointing at there parts of the brain. I would like to the functions of these three parts, Please? Are they control motion, speaking, ...
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1answer
2k views

Which chemicals or drugs cause retrograde amnesia?

Which chemicals or drugs available only to doctors cause significant loss of current memories, specifically memories within the past few years and recently rather than your childhood memories?
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325 views

What things can trigger scintillating scotomas? Are they sometimes classified benign and not a reflection of a condition requiring further treatment?

This is a different question than Are scintillating scotomas really caused by cortical spreading depression? If so, how is this known to be true? asked almost one year ago in Psychology and Neurology ...
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71 views

Medical procedure to sever the brain's ability to communicate with the heart?

So, I think I read some-where that there is a surgical procedure to server the heart's ability to communicate with the brain, for reasons. A negative consequence of this was not being able to, for ...
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1answer
41 views

Is it true that brains can metabolize ketones?

It is true that brains can use ketones for energy and concentration instead of sugar? This video (and my roomate) claim they can. I thought brains only operate on glucose and the liver is required to ...
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1answer
72 views

Needing a resource for brain health [closed]

I've recently started to do some research about brain health (mentally and physically). I need some concise resources (hopefully a book) to have a general study about brain. Anything from brain ...
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1answer
68 views

Is it true that humans use 10% only of the brain on a regular basis? [closed]

The movie Lucy said that humans use 10%. I wonder if this is true, and if it is, how is it so. Also, where can we place those people with high and low IQs in terms of percentage of brain usage?
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1answer
53 views

Brain performance suppliments [closed]

My 27 years old brain lacks concentration and memory, mood to perform daily task is lazy. I used to have a test most of the vitamins are ok except D and B complex Below average a little bit. Which ...
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1answer
42 views

What is the disorder when a bodily process/function that is usually automatically controlled by the brain suddenly has to be consciously controlled?

I read an article some time back about an opera singer who suddenly had to retire. When she sang, her throat would "open" and "close" automatically, but one day the process suddenly was no longer ...
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15 views

Why do water molecules diffuse along axons direction? [closed]

I am studying tractography technique which aims to reconstruct bundles of axons in brain by following the diffusion direction of water. It exploits the difference between grey matter and white matter: ...
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18 views

What is the meaning of “subcortical retraction” in a description of MRI of a Kearns-Sayre syndrome patient?

I came across the term subcortical retraction and cannot understand its meaning. Does it mean "the withering of the subcortical areas" (shrinking of subcortical white matter)? From Follow-up ...
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20 views

What is the risk of meningitis after nasal hair plucking?

I heard board-certified dermatologist Dr. Sandra Lee (aka Dr. Pimple Popper) refer to a Nasolabial triangle as the "triangle of danger" on one of her tv show episodes. Re-reading the ...
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40 views

Is the MSC-based regenerative medicine promising for Ischemic stroke stroke patients? ; two points difference in the 47-point test

Many papers says, regenerative medicine using MSCs are promising for Ischemic stroke stroke patients. But in my layman's sense, various data don't seem promising. So, I want to hear the opinions of ...
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20 views

Why do some neurons live longer than others?

It seems that the scientific community agrees that the development of new neurons stops between adolescence and early adulthood. ("Does the Adult Brain Really Grow New Neurons?" https://www....
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8 views

What are the definitions of Time to Peak, Cerebral Blood Flow and Mean Transit Time?

I am trying to compute Time to Peak, Cerebral Blood Flow (CBF) and Mean Transit Time (MTT) maps in brain CT imaging. I tried to find the definitions or some articles but I am not from the medical ...
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95 views

Does a higher IQ influence the 'high' of weed?

I'm not sure if this is the best place for the question, but it seemed like the appropriate board to ask on.. So, I'm not asking if Higher IQ= Smoking more weed or anything like that. I was just ...
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21 views

Longitudinal studies on: how attention to emotional stimuli develops from infancy to childhood?

According to LeDoux’s model (1996) we have specialized pathways for processing emotional cues. Pourtois, Schettino and Vuilleumier (2013) offer a neural model of how emotional signals capture ...
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217 views

Noogie = concussive force?

Can rubbing ones head vigorously with the knuckles result in brain trauma (essentially a hard scalp massage with the knuckles). Forceful enough that it is putting pressure on the scalp and causing ...
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41 views

Why consciousness is lost immediately when heart stops beating?

When heart stops beating - consciousness is lost in seconds. It is explained that it is due to the drop of blood pressure in brain veins. However, by my understanding - that should only make brain ...
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36 views

What practically “kills” the human brain without debilitating the person?

For example, people say that drugs kill the brain but someone who becomes stupid and forgetful from years of smoking marijuana isn't literally brain dead. What specific drugs and other activities or ...
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197 views

How are skills stored in the human brain?

How are skills stored in the human brain? I understand the difference between STM and LTM (short/long term memory). However, remembering a fact is different than learning a skill. Example: Let's take ...
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247 views

Can unruptured brain aneurysm symptoms come and go?

Lets say a person has many symptoms of a unruptured brain aneurysm, but they're rather subtle, and seem to change from one symptom to another. They come and go. Is that possible? Or, if they were ...
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28 views

What could cause transient binocular vision loss? [duplicate]

I have episodes of transient binocular vision loss. The progression of an episode is very predictable: I start noticing some letters missing in text. Slowly, it evolves to a point half of my vision is ...
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1answer
78 views

What supplements/diet/activities can I do to improve mental function?

I am currently going through a web development bootcamp. I want to stress the word bootcamp here, a bootcamp on my brain. I know sleep deprivation is taking its toll on my mental capacities so far but ...
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2answers
4k views

What is the difference between Axon terminal and Synapses

I've read from a book that axon terminals make connections on target cells. I understand it. but at another line they said that Neuron-to-neuron connections are made onto the dendrites and cell ...
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1answer
39 views

How our brain discharge old CSF? [closed]

Our brain produces new CSF fluid every hour, so old CSF discharge from our body. My question is where is CSF discharge point? or how our brain discharges Old CSF from the brain. . There is a ...
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1answer
62 views

Is there any intelligence in heart? [closed]

Is it correct to say that heart and brain both are center of intellect ? Has there been any scientific study done to prove that like Brain, Heart also has intelligence and there are heart-signals ...
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1answer
106 views

Are aluminum profiles dangerous?

I am thinking about building racing rig from aluminium profiles. Something like this: Original image here: http://www.simracingmachines.com/images/builds/rig2014/IMG_1686s.jpg I would like to have ...
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32 views

Can any disease enhance Brain functioning instead of reducing it?

Parkinson's disease, dementia and Alzheimer are known to degrade Brain's functionality. But are there always negative side effects to disease? Or are there any good side effect that enhances the Brain ...