Psychology- Chapter 4. Perception test- Watch the white team and count how many passes they make between them. Do not count out loud or say anything until the end of the test. Sensation and Perception. Sensation
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Take a deep breath. Air is sucked up into your nostrils over bony ridges called turbinates, which add more surface area to your sniffer. The air travels over millions of olfactory receptor neurons that sit on a stamp-size sheet, the olfactory epithelium, on the roof of the nasal cavity. Odor molecules in the air stimulate and inhibit the receptors.
Each aroma sets off a signal made by the receptors that travels along the olfactory nerve to the olfactory bulb. The olfactory bulb sits underneath the front of your brain. Signals from the bulb tell your brain what reeks.
Humans can recognize 10,000 different odors. However, no two people sense anything the same.
* Find 2 willing (and good) friends
* Sit on a chair blind-folded, and ask your friend (let’s call her Sam) to sit on a chair in front of you, with her back to you.
* Ask your other friend to take your right hand and put it on Sam’s nose
* Tap and stroke her nose in a gentle random manner, making exactly identical movements with your other hand, on your own nose.
* Continue this for 60 seconds
About 50% of people will have the extremely odd sensation that their nose is 3 feet long, or somehow their nose is elsewhere!
http://www.youtube.com/watch?v=0EP09pQJwow broom through body