Questions tagged [neurology]

The branch of medicine or biology that deals with the anatomy, functions, and organic disorders of nerves and the nervous system.

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18k views

Why do I feel small stings all over my body in stress?

I've realized I'm expierencing stress (or rather embarassment) quite differently than I used to. Like a year ago (I was 16) I expierenced stress just as a short warming up of my shoulders. For the ...
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1answer
969 views

Is the Fight or Flight response considered voluntary or involuntary? [closed]

Is the Fight or Flight response considered voluntary or involuntary? can this response be trained? Meditation?
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1answer
46 views

Why aren't children affected by pins and needles as much as adults?

If I sit down cross-legged on the floor for any more than about ten minutes I start to get pins and needles, and this seems to be common among other adults I have spoken to. My 3 year old daughter on ...
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1answer
251 views

Antihypertensive as a treatment for Tourette's. (And Antihypotensive to make blood pressure normal?)

So...I'm 30 years old and have Tourette's syndrome since 9. I never took any medication because most of then are antipsychotics and have very scary side-effects. Now, apparentely some ...
2
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1answer
212 views

What are normal values for EMG/nerve conduction studies?

Where can I find a detailed table of normal values for NCS (nerve conduction studies) for the various arm nerves - ulnar, median, radial; including both motor and sensory component of each nerve; ...
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1answer
101 views

Isometric contraction in PNF

Amidst the set of stretching techniques labeled Proprioceptive Muscular Facilitation, there are isometric contractions. Why does isometric exercise stretch muscles?
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1answer
155 views

What (if any) are the measurement units for neurotransmitters?

I've searched through the web for how to measure neurotransmitters (such as dopamine, serotonin, and oxytocin), but could not find any. Could someone please specify if there is a unit of measurement, ...
2
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1answer
138 views

Is there a disease that involves progressive loss of feeling, a tremor, and muscle twitches? [closed]

I have seen multiple doctors, including a neurologist, who are bewildered by my symptoms. Upon altering the dose of lamotrigine from 400 mg to 375 mg, and then back up to 400 mg (split into two ...
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1answer
68 views

Stuttering problems

I am a college student with stuttering problems. My first language is Spanish and my second language is English. I came to the U.S four years ago. I didn't stutter that much back then on my first days ...
2
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1answer
74 views

Treatment for mild Tourette syndrome

I have a friend who has had Tourette syndrome since he was a child. He is 26 now, the Tourette is mild, involving shoulder twitching. Is there any treatment that bring the syndrome to a negligible/...
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0answers
20 views

Why is multiple sclerosis associated with trigeminal neuralgia?

Multiple sclerosis (MS) is classically described as: an immune-mediated inflammatory disease that attacks myelinated axons in the central nervous system (Luzzio, n.d.). Since MS only involves the ...
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0answers
32 views

What, if any, are reasonable further tests for evaluation of cryptogenic stroke?

What is considered a "complete" workup of cryptogenic stroke? If someone presents with symptoms consistent with stroke and receives: PE EKG and external monitoring, MRI with contrast/MRA of head 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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35 views

Can the human brain be taught to recognize new body parts, and how?

A newly emerging category of medical study is the potential to replace a missing piece, in part or in its entirety. While currently in its infancy, the potential for this in human health is astounding....
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0answers
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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0answers
367 views

How could Lyrica (pregabalin) cause hallucinations?

I've heard of this happening on rare occasion, but I cannot figure out a sensible mechanism. I have some limited understanding of neurology and the function of GABA, and I know that ethanol (a GABA ...
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0answers
21 views

Dopamine deficit consequences for PD

I am currently working on a project related to Parkinson's disease, and I learnt a lot about how PD develops. In this context, I ran into a question that I could not answer myself. As PD results in a ...
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0answers
58 views

Way to measure different degrees of a mental disorder? [closed]

Is it possible to have a disorder that might only display some of the symptoms, is not as defined, or episodic, making it "borderline"? Is there a way to measure, or at least express the severity of a ...
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0answers
225 views

Strong earthquake sensation in one's head, what could it be? [closed]

Patient is in early 70s, female, very healthy, but has a slight thyroid deficiency issue that is adequately treated with the relevant drugs. Now, she occasionally (rarely) mentions that she ...
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0answers
52 views

Language decline due to chronic traumatic encephalopathy

I'm looking for references to studies on language decline due to progressing chronic traumatic encephalopathy (CTE). A preliminary search on google only gave me general info like "word loss, memory ...
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1answer
86 views

Tips on identifying CVA patients

In my work, not once i encounter old people with deterioration and i am having hard time deciding if does symptoms may be related to CVA or not and if a neurologist should be called. I will explain ...
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1answer
175 views

How many senses do we have?

Although we are taught in school that we have five senses (touch, taste, smell, sight, and hearing), the real number is much higher. Among others, we also have the following senses: Kinesthesia (...
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1answer
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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1answer
28 views

Has tardive dyskinesia ever “gotten better?” [closed]

I have tardive dyskinesia and my doctor said when he diagnosed me that it "might" not go away. I've heard that it's "potentially permanent." Has there ever been a recorded case where the condition has ...
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1answer
61 views

Is there a neurological or scientific explanation for déjà vu?

Is there a neurological or scientific explanation of déjà vu? Why do we experience it? Is it a suppressed-memory that we have forgotten about for whatever reason -- sort of like cryptomnesia? Or is ...
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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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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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0answers
20 views

Light adaption of pupil. When is a size adaption normal? [closed]

if an eye gets lighted with a fleshlight or other lightsources the pupils will decrease their width. This pupillary response is a typical indicator in diagnostics. Is there any specific value which ...
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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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13 views

Can neuromuscular electrical stimulation be used as a low-cost alternative to mechanical breathing

It is speculated that because of COVID-19 pandemic there may be shortage of intensive care equipment (mechanical breathers) causing deaths. Though IDK what is so costly in these mechanical breathers ...
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1answer
16 views

Neuronal ceroid lipofuscinosis treatments [closed]

Could Batten’s disease be cured by supplementing a drug which promotes lipolysis, since it is caused by an accumulation of lipids in brain?
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39 views

How does high-intensity aerobic exercise affect the brain?

I have been reading articles claiming that serotonin, endorphins and BDNF are produced during exercise, but they never mention the intensity or duration of exercise for this to happen. To not make ...
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0answers
22 views

How does low-intensity aerobic exercise affect the brain?

I have been reading articles claiming that serotonin, endorphins and BDNF are produced during exercise, but they never mention the intensity or duration of exercise for this to happen. To not make ...
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0answers
28 views

Peripheral excitability effects of Mirtazapin

Is there any reason/mechanism according to which only two dosages (on two consecutive days) of Mirtazapin 30mg might lead a patient to feel an increase in their peripheral neurological sensitivity, ...
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0answers
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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0answers
32 views

Is there any data about the significance of a blood serotonine level test and links to depression or other psychiatric diseases, or simply mood?

What does low or high blood serotonine levels tell us. Is there any data on the link between certain conditions and serum serotonine concentration?
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14 views

What is an unbiased electrical search stimulus?

The following is an excerpt from Wall and Melzack's Textbook of Pain, sixth edition: "When an unbiased electrical search stimulus is used, however, the prevalence of type I and type II A-fiber ...
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0answers
19 views

Are there any long-term health benefits/ disadvantages of wearing socks, especially woolies?

Are there any long-term health benefits/ disadvantages of wearing socks, especially woolies ?
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0answers
50 views

no medication treatments for MS

What are the no-medication treatments for Multiple sclerosis (MS) ? Based on many papers, sport and meditation can help to keep the immune system and the body healthier which leads to a higher level ...
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0answers
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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0answers
39 views

Does pain lower resistance to addiction?

For a little background, I'm known by everyone in my circle of family/friends for being the most healthy. I eat far less than most people do and it's usually fresh vegetables and things like chicken ...
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0answers
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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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
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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1answer
155 views

Myasthenia Gravis and preserved deep tendon reflexes, why?

I saw a patient on rounds the other day w/ MG (Myasthenia Gravis) and it was mentioned that DTR (deep tendon reflexes) are preserved. I've been going over it in my head and I am confused why they ...
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1answer
51 views

Would neurons regenerate even in adults? [closed]

I want to know whether or not the nerves regenerate in human adults. My Question Please give me evidences for this issue. What experiments and logic do they use to prove that the nerves are/are not ...
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1answer
16 views

Why does Delayed Post-hypoxic Leukoencephalopathy (DPHL) have a biphasic clinical course?

Delayed Post-hypoxic Leukoencephalopathy (DPHL or Grinker myelinopathy) is a rare condition where patients recovering from an anoxic/hypoxic brain injury develops new neurological symptoms 2-4 weeks ...
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1answer
19 views

Does hydroxychloroquine make tardive dyskinesia worse?

I found this article which suggests to me that chloroquine (hydroxychloroquine?) can make tardive dyskinesia worse. Is my reading of it accurate?
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1answer
39 views

What’s the role of hypothalamus in headache pathophysiology? [closed]

The hypothalamus forms part of the central autonomic network, regulating body homeostasis and controlling pain. What is its role in headaches?