For questions about the interaction of the brain/mind with function and structure of the rest of the body. If your question is specifically about the physiology of the central (or peripheral) nervous system then use the tag neurobiology.

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14
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3answers
225 views

Why does being in a natural environment induce some kind of “peace” state while mecha/tech ones induce the opposite?

Usually, natural environments (being out in "nature") tend to induce a happy and peaceful state, while mechanical and technological ones tend to induce stress and sadness. Why does this happen? Are ...
14
votes
1answer
5k views

Does anxiety produce adrenaline or does adrenaline make the person anxious?

Its obvious that both are related(adrenaline and anxiety) but which causes which? What (I think) I know: Anxiety accelerates the hearth rhythm due to the feeling of fear. It makes the body believe ...
11
votes
1answer
127 views

Have there been any studies which report a positive correlation between eating certain foods and reported sleep disturbances?

This Skeptics question touched on the subject, but I'm more focused on studies that have been conducted under highly controlled circumstances, like a university sleep lab. We've all heard these old ...
10
votes
4answers
9k views

Why do people laugh in serious situations?

I've seen people (including myself) that laugh for no apparent reason in really serious situations, such as in an argument or when receiving bad news. Although the other party is clearly very upset, ...
10
votes
1answer
109 views

How similar are human brains within the same haplogroup?

I've read about neuroscience and listen to talks like this one Juan Enriquez: Will our kids be a different species, I'm starting to realize that humans are not all the same, and are instead quite ...
9
votes
1answer
491 views

How does body temperature and oxygenation affect thinking ability?

I'm interested if the brain works better when the temperature is higher than usual and the amount of oxygen in the air is a bit lower than in fresh mountain air. This has been my personal experience. ...
9
votes
1answer
456 views

What is the effect of imagining doing an exercise on muscle growth?

I recently read a study by Yue, G et al. (1992) which I found incredibly interesting. I have no background in physiology and I was hoping that someone who does can clear things up. If I understood it ...
8
votes
1answer
201 views

How are people able to wake themselves up after a pre-specified amount of time?

Auto-suggestion seems to work. Several people I know seem to be able to tell themselves "I'll wake up after 'N' hours/minutes", and do so within a minute or two of that duration. I thought for a ...
8
votes
0answers
91 views

What is the mechanism behind unihemispheric sleep in animals?

It is known that dolphins have the ability to sleep with only one half of their brain at a time. According to this popular science source: Dolphins sleep by resting one half of their brain at a ...
7
votes
2answers
496 views

Skin conductance responses to emotional stimuli

The skin conductance response (SCR) is said that cannot be reduced to one specific stimulus (Boucsein, 2012). Does this mean that if the participant is presented with stimuli of different emotional ...
7
votes
1answer
226 views

How effective are multiphasic sleep schedules?

Does multiphasic sleep work well enough that it can be used as a replacement for monophasic sleep? Has there been any research done on people that have used bi/polyphasic sleep for extended periods ...
7
votes
0answers
112 views

Do animals that sleep during the day have a different sleep architecture than those who sleep at night?

A typical hypnogram, delineating the sleep architecture for a (human) mammal looks like A distinct distribution of non-REM and REM sleep can be observed. Is this pattern of sleep cycles ...
6
votes
1answer
554 views

Are there recent theories on physiognomy?

What are recent theories on the relation between personality and facial or body shape, and are there studies to support them? See Wikipedia on physiognomy and somatotypes & constitutional ...
6
votes
2answers
865 views

Is there a correlation between facial features and personality?

Background: From block buster movies, to Snow White and the Seven Dwarf's, characters with certain personality and mental traits are portrayed looking a certain way. For example, the clumsy one has ...
6
votes
2answers
150 views

Does taking a deep breath reduce reduce the experience of stress and negative emotions?

Sometimes when I have negative feelings, it seems that a deep breath resets these feelings. Does that really happen? Is there any research on the effect of taking a deep breath on reducing the ...
6
votes
1answer
192 views

How does fever affect time perception?

Many of my friends and I have noticed that at certain stages of fever, time is often perceived as being longer than usual. I'd like to know if this is caused by the disease itself, an immune reaction, ...
6
votes
2answers
441 views

Can scary movies trigger fight or flight and why can a person enjoy this while another does not?

Essentially, I understand the release of adrenaline can be addictive and that scary movies and events are a safe way of experiencing the drama without all the actual mess. but However, if we are ...
5
votes
1answer
2k views

Why does a stuffed up nose clear up momentarily when the person having it is startled or has an orgasm?

I have experienced this phenomena many, many times and I'm sure it's not only me. I guess the sudden rise in arousal opens up the nostrils in a kind of fight or flight response, but I'm interested in ...
5
votes
2answers
233 views

Heart rate monitor for scientific study

I want to measure heart rate as part of a controlled experiment I am setting up. I've been trying to find information on which heart rate monitor to buy, but it's unclear to me which heart rate ...
5
votes
1answer
71 views

Is there any evidence to support a correlation between how much bodily energy you are using, and how quickly time appears to pass?

It seems to me that time passes more slowly when I am drinking coffee, but when I stop, or I am tired it seems that time passes a lot faster. Could this have something to do with the sampling rate at ...
5
votes
2answers
172 views

The effect of proper food intake on emotions and brain function

Recently I wasn't eating at the proper time and I often skipped meals. I was angry, stressed before taking my meal, and suddenly, I felt good after having my dinner. I have felt the same way many ...
5
votes
1answer
220 views

What is the mechanism explaining the effect of a positive attitude on immune system functioning?

It seems likely that a positive attitude can speed up the healing process. but I can't decide by what mechanism it would operate by. Questions Does having a positive attitude improve immune system ...
5
votes
0answers
72 views

What is it about the nature of slow-wave sleep that makes it difficult to awaken the sleeper?

In humans, delta wave sleep ("slow wave" sleep, stages III and IV by AASM criteria) is more common in children and becomes only a small percentage of total sleep time in adults. Cortical EEG waves ...
4
votes
2answers
100 views

Does pain reduce cognitive abilities?

Does subjecting a person to pain reduce his cognitive abilities? If so, what is the process that reduces the ability? (By process, I mean the changes happening in the nervous system as a result of ...
4
votes
1answer
575 views

What causes gender differences in responses to farting?

Background: By casual observation, I have noticed that males tend to react differently to the sound of a fart. It seems that men are more likely to laugh whereas women are more likely to show signs of ...
4
votes
1answer
187 views

Does looking into a mirror relieve eye strain in a similar way to looking at distant objects?

Sometimes when having an eye exam the eye chart is viewed through a mirror to increase the distance between the person and the chart. When using consoles, it is recommended to look away from the ...
4
votes
1answer
481 views

How does body temperature affect perception of time?

Does raising or lowering one's body temperature lead to different perceptions of time? And does this then control the virtual length of positive or negative emotions? For example, individuals might ...
4
votes
1answer
98 views

What keeps the cerebrospinal fluid circulating? Is it pumped by something?

What keeps the cerebrospinal fluid circulating? Is it pumped by something? This picture from wikipedia seems to indicate that it pulsates as though it is pumped:
4
votes
1answer
267 views

What is the difference between drug withdrawal and sleep deprivation effects?

Personal sleep-deprivation study: Recently, I posed a question that I'm sure many people find tough already: "Do I really need to sleep?", and so I tested myself, I spent two days without sleeping. ...
3
votes
0answers
54 views

Why is it easier to fall asleep in the dark?

I'm curious if there is any neurological mechanism that explains why falling asleep is easier in the dark. I recognize that this isn't true universally -- a phobia of darkness might make it easier to ...
3
votes
0answers
36 views

What regulates the strength of motoric signals?

I've seen cognitive/roboter models where the input signals from the sensors are directly used as the signal for outgoing motoric control. This doesn't make much sense, because obviously we're able ...
3
votes
1answer
94 views

Is there a psychological basis for getting hiccups?

Is getting the hiccups sometimes related to our mental condition, i.e., stress level, etc?
2
votes
0answers
11 views

Is it possible to gain strength by imagining working out? [duplicate]

Is it possible to still gain muscle strength by performing exercises but without load? Is there some kind of memory mechanism that would allow this?
2
votes
0answers
45 views

Muscle tone and default heart rate - psychological conclusions?

I know that muscle tension and heart rate goes up as we get stressed, but what if in normal conditions some have a lower heart rate and muscle tension while others higher? Does this say something ...
2
votes
1answer
93 views

Can short-term hunger influence anger?

We know that hunger, whether short-lived or prolonged, causes physiological changes in our bodies. These may have psychological effects too as brain functions are slowed down and can have an impact on ...
1
vote
1answer
209 views

Can anxiety cause a heart attack, black-out or insanity?

David Burns in his self-help book about overcoming depression, anxiety and interpersonal problems called The Feeling Good Handbook¹ states: ...neurotic anxiety results from distorted thoughts that ...
1
vote
0answers
16 views

Physiological mapping of frustration

What physiological changes are seen in the brain when a person is experiencing frustration? What effects do these changes have on learning? Optional background: I'm trying to figure out an ...
1
vote
0answers
62 views

What happens inside our body, when we experience betrayal and infidelity?

I guess many of us have experienced it. The moment that you understand that "the person you love, in whom you've trusted, is now with someone else, enjoying every moment with him/her". It's so ...
1
vote
0answers
30 views

How to analyse physiological measurements acquired by MP150 modules for auditory experiments?

I am seeking the best forums or web documents to search for examples on how to analyze data from physiological measurements acquired by a set of MP150 modules during a cognitive psychology experiment ...
0
votes
2answers
79 views

Does the heart play a role in the occurrence of emotions?

It is a common belief that the heart is somehow related to emotions. When we are nervous,our heartbeat is effected (increased heart rate) and when we are happy, another pattern in heart function can ...
0
votes
0answers
33 views

is it good to study more than one subjects the same day?

I have personally never been able to do that! by saying "study" I don't mean doing "home work" or reading a book; I mean research. for example: trying to solve a difficult mathematical problem in ...
0
votes
0answers
27 views

Do people with prenatal hyperkinetic dysfunction have better endurace?

I have a question about hyperkinetic dysfunction. I wonder if theres a relation between HKD and the physical fitness, like endurance or strength, because I have a case, where someone never does ...
-3
votes
1answer
186 views

Why do some individuals enjoy watching horror movies? [closed]

What is a scientific explanation for why some people enjoy watching horror movies?