Medical Animation Library ©Copyright 2009 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. TodaysMeet NSDL.org - National Science Digital Library Hearing Test - Can You Hear This? We got a lot of positive feedback on our Can You Hear Like a Teenager? article, and it inspired us to take it just a little bit further. Check your hearing with a list of tones that go from 8Hz all the way up to 22,000Hz. It’s fairly common for people who are over 25 years of age to not be able to hear above 15kHz and also experience some level of hearing loss or hearing damage such as tinnitus. This online test will help you find out where your high frequency hearing cuts off. Musicians have a much higher risk of hearing loss that most people do, and many of us don’t really wear proper hearing protection. Take our online hearing test: listen to each of these tones and let us know where your hearing cuts out. Importance of Hearing Protection If you’re around loud music a lot like I am, or if you are experiencing some hearing loss, I highly recommend getting a pair of hearing protection earplugs.
ToonDoo - World's fastest way to create cartoons! the museum of science, art and human perception 5 Mind-Blowing Ways Your Senses Lie to You Every Day We are so completely dependent on our five senses every moment of the day that we totally forget how full of shit they can be. Your reality is cobbled together from a bunch of different parts of your brain working in conjunction, and often it's like a bickering conference room full of uncooperative co-workers. In fact, we're pretty sure the thing your brain does best is convince you that it works. But it doesn't take much to spot the bizarre little flaws in your gray matter. For example ... #5. Photos.com/AbleStock.com/Getty Images When you hear someone talk, the whole process is pretty straightforward, right? Short answer: your eyes. In the clip, you see (and hear) a guy saying "bah bah bah" over and over. BBCYour brain also gave the "fah" version a tan, for unknown reasons. This illusion is called the McGurk effect, and the creepiest part is that, even knowing know full well what's going on, you can't get your ears to hear the correct sound. #4. Oleksandr Pekur/Photos.com Wait, no. #3.
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