Tagged Questions
1
vote
0answers
61 views
Does sexual arousal inhibit functions of prefrontal cortex in human females as well as males?
I've read somewhere, that when a human male experiences sexual arousal, his prefrontal cortex and, hence, his ability to reason and make rational decisions, is being heavily inhibited. Sounds pretty ...
2
votes
0answers
54 views
Why Do Nerve Signals Get Crossed?
First off, I don't know if this is a normal healthy thing to occur. There have been many times where I have an itch on say my arm and I scratch it, only to feel the scratching elsewhere on my body. I ...
3
votes
1answer
94 views
Why do humans alone have the capability to have religious/spiritual experiences?
What is it in our brain that makes having such experiences possible? I assume other species don't have these. Sure there are instances in the natural world where you can see individuals of the species ...
8
votes
2answers
200 views
Do memories have mass?
If it were possible to live forever, would our brains grow infinitely with the number of memories that we store? Or would we remove old memories as we create new ones?
3
votes
2answers
95 views
Can children restore brain cells?
By "children" I mean young people at the age of 10 or lower.
I know that the adult brain cannot restore brain cells, but what about children? I mean, the brain must develop from a few cells to a 90 ...
8
votes
2answers
296 views
Why do the two hemispheres of the brain control the opposite sides of the body?
Why does the left hemisphere control the right and the right hemisphere control the left? I googled it but didn't find a good answer regarding this. Could someone explain?
Does this adaptation help ...
6
votes
2answers
2k views
If the brain has no pain receptors, how come you can get a headache?
I've read many years ago in books, that the brain has no nerves on it, and if someone was touching your brain, you couldn't feel a thing.
Just two days before now, I had a very bad migraine, due to a ...
8
votes
1answer
221 views
Why does this illusion work?
This is another image I found on Google+
All lines are absolutely straight, parallel and perpendicular but why does it appear to have a curvature?
Related: How does this illusion work?
4
votes
1answer
660 views
How does this illusion work?
I found this image on Google+
If you shake your head you can see a portrait of a person. Can anyone explain how the image is constructed in the brain?
