Questions tagged [neurology]

Generally regarded as the center of the nervous system in most living beings.

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Can video games cause seizures?

It's very common in the USA for video games to come with a health warning that playing them can cause seizures. For example, the 2010 release of Sega's Sonic Colors for Nintendo Wii contains the ...
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38 votes
1 answer
9k views

Do methamphetamines give more pleasure than other human experiences?

This WatchData infographic video lists some of the worlds most pleasurable things ranked by how many dopamine units they produce At the top of the list, methamphetamines with 1250 dopamine units, ...
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Does looking at screens damage your brain?

I found several articles that warn of the dangers of too much computer time, especially for children. Oxford Learning, Jun 2010: Too much computer time can be bad for your brain However, a recent ...
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12 votes
1 answer
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Is the Eye of Horus symbol based on the human brain?

The Eye of Horus is an ancient Egyptian symbol and hieroglyph (𓂀). A thread on the site International Skeptics Forum introduces a claim found on Facebook: The following image shows the Egyptian Eye ...
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Can meditation decrease your brain's age by up to 25 years?

I read this When Steve Jobs Died At 56, His Brain Was Only 27 and this: Does a brain age faster when depressed? And would that be a bad thing? Can meditation "reverse-age" one's brain up to 25 ...
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Does putting a tiny electrical current across the parietal lobe boosts maths ability?

A 2010 BBC article says: Applying a tiny electrical current to the brain could make you better at learning maths, according to Oxford University scientists. They found that targeting a part of the ...
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5 votes
1 answer
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Does the inner ear play a large role in regulating respiration?

Assoc Prof Dr Daniel Rubens has said that Sudden Infant Death Syndrome might be linked to damage to the inner ear. Sudden Infant Death Syndrome (SIDS) may be linked to the build up of carbon dioxide ...
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11 votes
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Are the diagnostic criteria of brain death reliable?

There is a large number of sites - particularly fundamentalist Christian sites - claiming that the people who meet the diagnostic criteria for brain death are, nonetheless, capable of recovering. For ...
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3 votes
1 answer
578 views

Does salt (or sodium) not make you thirsty?

This is from a Toronto MS thesis: High dietary sodium intake is hypothesized to increase food intake (FI), fluid intake and glycemic response. Two short-term randomized repeated-measures studies ...
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Is sleep "defragmentation" for your brain?

I've seem several articles claiming that sleep is akin to the usual proccess of hard drive defragmentation, however for your brain. This process allegedly prunes synapses/memories and reconsolidate ...
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Will rats given the ability to artificially stimulate their pleasure centers starve to death?

There's a widely-held belief [example] that a rat will starve itself to death if given a lever to press that will stimulate some "pleasure center" via electrodes implanted in its brain. Supposedly, ...
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6 votes
2 answers
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Is addiction a disease?

In the DVD Pleasure Unwoven, Dr Kevin McCauley, a medical doctor, claims that addiction is a disease. In the video he argues against the choice model, and explains the neuroscience of addiction I ...
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7 votes
1 answer
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Does listening to classical music "Improve Cognitive Function"?

https://www.dumblittleman.com/kickstart-your-brain-with-the-mozart/ The article says: Several studies have shown cognitive improvements in those who listened to classical music prior to performing ...
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1 answer
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Does SuperBrain yoga improve cognition?

SuperBrain yoga is a yoga practice that features holding your earlobes with your opposite hands. It is described in a 2005 book. The ad copy claims: SuperBrain Yoga is a scientifically validated ...
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44 votes
2 answers
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Are obese patients in the US commonly sent to zoos for CT scans?

Nothing like the Daily Mail for raising an eyebrow: The bizarre requests to use CT scanners, normally intended for four-legged animals, at the UK’s leading veterinary college in north London were ...
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7 votes
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Does it take 30 seconds for a person to consciously realize that they're awake?

Source: "You actually have to be awake for a full 30 seconds to consciously realize that you are awake, but the body falls right back into sleep immediately after it wakes up to take a breath," ...
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Does stimulating the hypothalamus signal brain to store less body fat?

I come across another Indiegogo project that promises a weight loss just by carrying their device on the head. This device stimulates nerves behind the ear. They claim that these nerves send a signal ...
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10 votes
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Does social media cause permanent damage to concentration capability?

In this TEDxtalk (transcript is here), the speaker claims that there is a growing amount of research that shows that spending large amounts of time on social media permanently damages the capability ...
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1 vote
2 answers
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Is the experience of unified perception produced by the (physical) brain?

From 1:37 to 3:22 in this video, the claim is made that we can clearly see that brain chemistry cannot give rise to unified subjective experience and cannot explain how our experiences emerge. The ...
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Does area of the brain associated with the sense of self "shut down" when praying?

Is there any study done on the claim that the area of the brain associated with the sense of self "shuts down" when praying? In the NBC News article "What Happens to Your Brain When You Pray?", ...
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3 votes
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Does Marmite improve the brain?

The British food spread Marmite is well known to polarise opinion (people either love or hate the taste with few people showing indifference). Wikipedia describes it as: ... the product is a sticky, ...
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Can you become a genius by a hit in the head? [duplicate]

I watched some show on H2 channel, where they said that some people became geniuses after being hit in head. If we ignore the crap about aliens (their theory was that they were taken by aliens), did ...
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1 vote
1 answer
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Can brain tests on toddlers predict future criminality? [closed]

A study reported in Nature Human Behaviour in 2016 generated a lot of media hype. Typical headlines asserted: The disturbingly accurate brain science that identifies potential criminals while they’...
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17 votes
1 answer
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Can anyone function on just 2 hours sleep per night?

This infographic advert describes the sleeping habits of a few well-known people: A few of them were claimed to have gotten by with extremely little sleep. For example: Tesla, 2 hours of sleep per ...
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Does "midbrain activation" cause clairvoyance?

There was this kid in my town who claimed that his instructor had trained him using Mid-Brain Activation, see Midbrain Activation) techniques, and as a result he could "see" things while being ...
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1 vote
1 answer
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Is MSG excitotoxic?

Popular YouTuber Alex Jones claims (in a YouTube video with nearly 1M views) that MSG is an excitotoxin and harms the brain and liver. I haven't even had time to get into MSG. I mean, I've ...
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4 votes
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Are our gut microbes responsible for 50-90% of our behaviour-regulating neuro-transmittors?

I have always concidered this channel serious, but they are making very bold claims. https://www.youtube.com/watch?v=T3Ftj5E90tY 50% of our dopamine and 90% of our serotonin is created by microbes ...
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10 votes
2 answers
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Do AVS/Psychowalkman/Mind Machine devices work?

There are plenty of so called Audio-Visual-Stimulation (AVS) tools you can buy on the market (used to be called Psychowalkman). They usually claim that it can stimulate brain with sound/visualization ...
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6 votes
1 answer
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Does converting handedness lead to memory disorders?

Linkshaender Beratung (a.k.a. Lefthander Consulting) warns that trying to convert someone from being left-handed to right-handed (or vice versa) leads to a number of direct and indirect harms. The ...
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4 votes
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Do we "live" further in the past based on how tall we are?

Vsauce, in this video, You Live In The Past, viewed over 5 million times, claims that when you tap your nose and your toes at the same time, they feel as if they happened at the exact same time (which ...
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10 votes
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Do Nervana earphones stimulate the vagus nerve to enhance mood?

The company Nervana claim that their new earphones and generator devices can stimulate the vagus nerve in the ear. The proprietary left earbud [...] not only receives the left channel of the music ...
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15 votes
0 answers
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Does playing electronic games interfere with a child's healthy dopamine response?

In this August 2015 Psychology Today blog article, a child psychiatrist and author, Dr Victoria Dunckley makes a number of claims about how screen time is causing symptoms of mental health problems. I ...
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2 votes
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Is there a link between ADHD and drinking fluoridated water?

[Newsweek][1] claims a study shows a link between ADHD and fluoridated water. New research shows there is a strong correlation between water fluoridation and the prevalence of Attention Deficit ...
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1 vote
1 answer
600 views

Do male human brains have better global efficiency than female human brains and female brains have better local efficiency in the right hemisphere?

Wikipedia writes in Lateralization of brain function: Significant differences between male and female hemispheric rivalry and dominance have been established. Male brains have significantly better ...
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Does the right eye feed information to the left brain hemisphere while the left eye feeds information to the right brain hemisphere?

Changingminds writes in Right and Left Brain: The brain cortex (the crinkly 'walnut' bit) is divided into two clear hemispheres, connected by the corpus callosum, which provides an 'information ...
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18 votes
1 answer
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Does broccoli have a nervous system?

It appears there are non-reliable sources on the internet claiming broccoli has a nervous system: forum at funnyjunk.com: Broccoli have a very primitive nervous system. Technically, they are able ...
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11 votes
2 answers
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Do we dream every night?

Tell someone you don't dream at night, and you'll often get the reponse, "Oh, didn't you know we dream every night? It's just that we forget our dreams". This is usually said as if it's a scientific ...
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1 vote
1 answer
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What is the source for these brain scan images? [closed]

Here are four brain scan images, attributed to some non-scientific twitter account on the left: https://twitter.com/ProtestPics/status/717547937841221632/photo/1 Trying reverse image search brings up ...
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5 votes
2 answers
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Do antidepressants cause brain damage?

A friend two years ago read an online article that claims antidepressants cause brain damage. I don't know which one, but I imagine it was something like this. Do antidepressants cause brain damage?
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5 votes
0 answers
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Does 70% of our brains cells change every day? If yes, how significant is that?

Frederick Travis claims that 70% of our brain cells change every day (for example in this clip and in this talk). Considering that we've got a lot of brain cells, that 70% seems a lot as well. If ...
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4 votes
1 answer
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Does birth control decrease gray matter in the brain?

I read once that women who take birth control pills experience decreases in gray matter. The researchers found that certain regions of the cortex were thinner in women who took birth control pills ...
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4 votes
0 answers
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Does our subconscious not understand negation? [closed]

Supposedly our subconscious cannot understand negatives. Therefore we should formulate all our goals in a positive way. Instead of writing down "Don't smoke" as a goal we should use "Be smoke free". ...
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2 votes
1 answer
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Is dysharmonia a recognized medical condition?

In his book Musicophilia, Oliver Sacks discusses a case involving a woman named Rachel Y. who lost the ability to process harmony in a car accident. He then explains how this lead to simultanagnosia. ...
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11 votes
1 answer
852 views

Are male and female brains connected in a completely different manner?

I found this claim on Focus, an Italian pop-sci magazine: Le reti di connessioni cerebrali nel cervello dei maschi (in alto) e in quelle donne (in basso): in blu sono visibili i collegamenti all'...
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3 votes
1 answer
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Is a new case of dementia diagnosed every 4 seconds?

I recently heard a claim that a new case of dementia is diagnosed every 4 seconds from various resources including the World Health Organization, The total number of new cases of dementia each ...
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6 votes
1 answer
1k views

Did Emil Krebs master 68 languages?

The German polyglot Emil Krebs allegedly mastered 68 languages. Which, frankly, I find unbelievable. Unfortunately, I cannot find any reliable and convincing source. Is there solid evidence that Emil ...
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3 votes
2 answers
626 views

Do antipsychotics have persistent negative effects on the brain?

I've found many web-sites that warn against anti-psychotics. But antipsychotic treatment has a negative impact on the brain, so … we must get the word out that they should be used with great care, ...
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108 votes
8 answers
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Could people perceive the color blue in ancient times?

This article claims that no ancient language anywhere in the world had the word for "blue", that for instance Homer described the sea as "wine-dark", and that the color blue has only appeared more ...
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7 votes
1 answer
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Does bilingualism prevent Alzheimer's?

I have read a few articles that claim that being able to speak second a language has various benefits to the mind, including preventing or delaying Alzheimer's disease, Is this really true?
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2 votes
0 answers
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Can the special sound frequency make addiction? [duplicate]

Supposedly, for certain music track are used any frequencies that the human ear can not hear , but the brain can. And this the frequencies create pleasant feelings, which is why more people choose a ...
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