Questions tagged [neurology]
The branch of medicine or biology that deals with the anatomy, functions, and organic disorders of nerves and the nervous system.
129
questions
5
votes
0
answers
63
views
Do opioids lower pain thresholds across the board?
I was told by someone who should know (as they must manage post-operative pain) that opioids lower a person's pain threshold, period. I had never heard that before, and I was doubtful that the ...
- 9,472
2
votes
0
answers
20
views
Model of nerve viii firing
I'm trying to understand how sound is converted into neural spikes through the auditory system. I've understand that the sound causes the basilar membrane to vibrate in turn causes hair cells to ...
- 121
3
votes
0
answers
145
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 ...
CommunityBot
- 1
1
vote
0
answers
28
views
What is the difference between the vasomotor center and cardiovascular center in the brain?
The vasomotor center is introduced as the following in our coursework:
The vasomotor center is located bilaterally in the reticular substance of the medulla and lower third of pons. It contains the ...
- 121
1
vote
0
answers
31
views
is glue embolization the last frontier in Intracranial aneurysms research?
I very very recently started researching the field of intracranial aneurysms (ICA) and I have this question about that glue or gel that some people talk about.
To me, who I am just learning the basic ...
- 11
0
votes
1
answer
39
views
A condition that causes an enjoyable sensation in the brain when drinking cold beverages
Whenever I drink something very cold and direct the flow towards the roof of my mouth close to the brain, I do not get any uncomfortable sensation like many do, on the contrary, I find it highly ...
- 3,090
2
votes
1
answer
81
views
A neurologist or a psychiatrist or a psychologist, who is better suited to diagnose neurodevelopmental disorders?
There are a lot of neurodevelopmental conditions which are hidden-type and resembles mental conditions. These includes sensory processing disorders, prosopagnosia, developmental coordination disorder (...
0
votes
0
answers
29
views
Is there a name for the bright lights/fuzzy spots that are seen after head trauma?
I have had a number of concussions and the one thing I remember quite a few times is seeing bright spots or white fuzzy spots in my vision briefly after. A similar thing occurs when I have ...
- 113
2
votes
0
answers
14
views
Size of somatosensory overlap/intermediate zone for pain/light touch
For somatosensory innervation, there is a substantial overlap within the spinal cord and dermatomes, so that the (maximal) innervation zones of adjacent spinal roots form overlapping/intermediate ...
- 121
-1
votes
1
answer
60
views
Why do neurostimulators for DBS need to be implanted?
Neurostimulators for deep brain stimulation (DBS) are called implantable pulse generators (IPG), precisely because all of them end up being implanted inside the patient's body. Now I get that the ...
- 9,753
4
votes
1
answer
73
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 ...
- 371
2
votes
1
answer
63
views
Meaning of "lower limit of normal + 20% over basal value" in a description of a blood lactate analysis (after glucose load)
From "Alpers- and MNGIE-like disease with disturbed CSF folate transport and an unusual mode of genetic transmission of POLG mutations: a case report":
Basal serum lactate was normal (1.1–1....
- 1,630
2
votes
0
answers
81
views
Can diabetic nerve damage occur even if the blood sugar is under control? [closed]
Having blood sugar levels elevated at some point of time ago but now kept under control for long, can still cause problems associated with elevated sugar levels?
For instance, diabetic neuropathy?
- 121
1
vote
1
answer
44
views
Are the surgical site infections "in the brain" caused by same bacteria found in "other parts of the body"?
Are the surgical site infections "in the brain" caused by same bacteria found in "other parts of the body"?
There's a blood-brain barrier so, most of the bacteria that infect ...
- 410
-1
votes
1
answer
38
views
What's the name of the function that helps localise part of body without looking?
What function in the brain allows it to locate body parts in space without looking?
How is it possible to eat without looking? Why are some people able to catch food that has been thrown at them? Are ...
- 3,090
1
vote
1
answer
71
views
Why nephrotic syndrome does not present with haematuria?
As we know that nephrotic syndrome is characteristically present with proteinuria and on the other hand haematuria is seen in nephritic syndrome. Defect/loss of podocytes in nephrotic syndrome leads ...
- 156
2
votes
0
answers
559
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 ...
CommunityBot
- 1
4
votes
1
answer
265
views
Can constant exposure to static electricity affect the nervous system in any way? [closed]
As titled, can holding a constant static charge affect the CNS? If so, is it detrimental? What are the short/long term effects, if any?
- 101
2
votes
0
answers
32
views
Which psychiatric disorders currently have objective, neuroimaging-based diagnostic methods? [closed]
For which psychiatric conditions is it possible currently to view someone's brain through neuro-imaging to conclude that a brain condition is present?
- 121
2
votes
1
answer
148
views
Would a SARS-CoV-2 infection disrupt the blood-brain barrier, leaving the brain more vulnerable to drugs taken simultaneously with the infection?
According to some studies[1], there is some evidence that the virus could cross the BBB. Is that is the case, does that mean that it would weaken the barrier allowing potentially neurotoxic drugs to ...
- 991
6
votes
1
answer
130
views
Diagnosis of Alzheimer's disease
How can I diagnose the symptoms of Alzheimer's disease? What are the most striking symptoms of the disorder? How can we help to diagnose the symptoms faster?
- 1
4
votes
2
answers
105
views
What are ASDH and AS in the context of "cause of death"?
I'm not sure this is technically the correct place to ask this question, but I know I need medical expertise so hear I am. I have been researching my family genealogy recently and, of special interest ...
- 975
1
vote
1
answer
1k
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 ...
- 1
2
votes
1
answer
54
views
Why don't people replace morphine with Beta-Endorphines?
I was reading about the morphine molecule. It binds to our opioid receptors. These opioid receptors have endogenous binding partners also, like β-Endorphin.
There have been reports that these ...
- 273
1
vote
0
answers
30
views
Light adaption of pupil. When is a size adaption normal? [closed]
If an eye gets lighted with a flashlight or other light sources the pupils will decrease their width. This pupillary response is a typical indicator in diagnostics. Is there any specific value which ...
2
votes
1
answer
63
views
The effect of dietary protein on neurodegeneration
I have recently come across the following two studies:
The first paper was performed on an Alzheimer's disease mouse model, and found that protein restriction cycles reduce IGF-1 and phosphorylated ...
- 246
1
vote
0
answers
35
views
Detrimental effects of very-wide or multiple monitors?
Over the past several decades, computer monitors have typically gotten larger, and more specifically wider. Also, it has become (somewhat) more common for people to use an multiple monitors next to ...
- 518
0
votes
0
answers
36
views
Can dermatomal problems possibly indicate other medical conditions?
I have been reading up about dermatomes and it got me wondering if dermatomal issues can indicate potential problems further into the body than the dermis?
For a couple of examples, can say one of T1 ...
- 6,164
1
vote
0
answers
21
views
Meaning of "early neurotoxicity" in description of methotrexate treatment effects - at an early age? or an early-stage neurotoxicity?
From a guideline:
Due to the inhibitory effect of methotrexate on DHPR and the interaction with dihydrofolate reductase (DHFR), this treatment may lead to HPA and early neurotoxicity, possibly ...
- 6,164
0
votes
0
answers
36
views
what is the visual feedback in parkinson's disease?
the patient cannot walk normally, but can only walk if there are black and white squares on the floor. How can we explain this visual feedback physiologically? basically what is visual feedback? What ...
1
vote
0
answers
53
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 ...
- 133
1
vote
0
answers
34
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 ...
- 1,630
4
votes
1
answer
5k
views
Is there a way to stimulate taste buds after stroke?
After a stroke late last year, my 87 year-old grandfather hasn't been doing so hot. After being discharged from the hospital's rehab center, he has been in our care for over two months. Keeping food ...
0
votes
1
answer
2k
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 ...
- 66
0
votes
1
answer
57
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 ...
- 1,513
0
votes
1
answer
21
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 ...
- 1,074
4
votes
1
answer
333
views
Does a unilateral total obstruction of the carotid artery cause brain damage?
The brain receives oxygenated blood from both the internal carotid arteries and the vertebral arteries, which are connected through the Willis circle (Circulus arteriosus cerebri).
Obstruction of ...
- 6,772
1
vote
1
answer
22
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?
CommunityBot
- 1
0
votes
1
answer
38
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?
- 13.2k
1
vote
0
answers
17
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 ...
- 111
0
votes
0
answers
101
views
Tilt table test and beta blockers
Is tilt table test indicative with beta blockers for dysautonomia diagnosis? Or is it require drug withdrawal?
- 101
1
vote
0
answers
54
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 ...
- 121
1
vote
0
answers
25
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 ...
- 121
2
votes
0
answers
47
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 ...
CommunityBot
- 1
2
votes
0
answers
93
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 ...
- 1,019
6
votes
1
answer
86
views
How valid is the amyloid hypothesis in the causation of Alzheimer's disease?
I have researched this topic and found conflicting opinions towards the amyloid hypothesis in causing Alzheimer's disease. How valid is it?
- 3,283
1
vote
0
answers
29
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, ...
- 161
7
votes
2
answers
303
views
What are the symptoms of Migraine and how to categorise into severe or mild etc
How to identify if someone suffers from migraine? and how is the migraine categorised ie whether it is severe, mild etc?
- 196
0
votes
1
answer
43
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?
- 196
3
votes
1
answer
348
views
Skin receptors on finger tip
How many receptors do we have on our fingertipps per square centimeters? I found 2500 but do not find the source.
Is this correct?