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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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 ...
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Why can thinking make a headache worse?
I sometimes get headaches where if I try and ignore them and continue with my work, they get so bad I feel sick and have to have a lie down until it passes. I've found that the best thing to do is ...
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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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Foods/drugs/vitamins to avoid, or not avoid, for tardive dyskinesia
I'm half expecting this to be closed as off-topic as seeking personal medical advice, but I'm going to try not to phrase it that way and see how it flies. For full disclosure, I was recently diagnosed ...
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Reference request: Parkinson's disease book
I am about start a project on computational modelling of basal ganglia in the context of Parkinson's disease. My background is mostly on computational side (and some neuroscience too) and I know ...
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Do pharmaceuticals which increase dopamine and norepinephrine levels in the brain significantly increase histamine levels?
I imagine any medication that has an effect on catecholamines would in some way increase histamine levels as well, just for the fact that histamine is part of the 'fight or flight' response and seems ...
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Nicotinic receptors stimulation
I came across this question today, it says:
Nicotinic receptors stimulation is directly responsible for …
I should fill the spaces by one of the following choices:
Increasing the excitability of ...
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Affects of nicotine on the nerves
There are new methods for getting nicotine. For example, vaping. Some people are almost promoting nicotine as a health product that can reduce the risk of Parkison's disease and colitis. Some people ...
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Any examples of diagnoses, therapies or rehabilitation procedures based on patients writing code?
For various neurological or psychiatric conditions, treatments and rehabilitation procedures have been developed that try to stimulate affected functionalities, e.g. music therapy or chess play for ...
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Decorticate or decerebrate response: may the underlying damages be reversible?
Decorticate response (GCS-4:112) or worse, decerebrate response (GCS-5:113), whatever the reason, are a sign of brain damage1.
According to the US National Institute of Health:
Decorticate posture: "...
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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 ...
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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 ...
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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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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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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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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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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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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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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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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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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 ...
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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 ...
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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 ...
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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 ...
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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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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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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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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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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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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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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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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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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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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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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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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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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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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 ...
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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 ...
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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 ...
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Tilt table test and beta blockers
Is tilt table test indicative with beta blockers for dysautonomia diagnosis? Or is it require drug withdrawal?
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Is it possible to "sleep" while aware and cognizant?
I have a scenario, but before I begin, I would like to clarify that this is not Sleep Paralysis, nor Lucid Dreaming, nor what I understand a Trance to be.
Let's say that someone decided they needed to ...
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