An audible activity from Scientific American Show
Key concepts Introduction Background Sound travels through the air in waves. Your ears are specially equipped to receive and understand these waves. Each ear collects and channels sound waves, transforming them into vibrations. Within your inner ear tiny hair cells respond to these vibrations and send signals that your brain can decode and interpret as a variety of sounds. But why exactly do we have two ears instead of just one? Try this activity and find out. Materials Procedure Observations and results Each ear receives information that is sent to your brain. Because your ears are not side by side, they receive different information. If someone standing to your left claps his hands, your left ear will receive this sound wave more quickly than your right one. In addition, the clap will sound louder in your left ear than in your right . Your brain uses these differences to better understand where a sound is coming from. This can also explain why—as you may have noticed—it's hard to tell the difference between a sound directly in front of or behind you, even if you are using both ears. When the sound source is exactly equidistant to both ears, they receive very similar information and your brain has fewer clues as to where the source may be. Cleanup More to explore ABOUT THE AUTHOR(S)Daisy Yuhas edits the Scientific American column "Mind Matters." She is a freelance science journalist and editor based in Austin, Tex. Follow Daisy Yuhas on Twitter Credit: Nick Higgins What is the term for the ability to detect sound and pinpoint the direction from which it is emanating discrimination sound distinction sound travel sound localization?Sound localization is a listener's ability to identify the location or origin of a detected sound in direction and distance. The sound localization mechanisms of the mammalian auditory system have been extensively studied.
What is the term for the reflects that makes a baby who is lying face down in a body of water paddle and kick?For instance, the swimming reflex makes a baby who is lying face down in a body of water paddle and kick in a sort of swimming motion. The obvious consequence of such behavior is to help the baby move from danger and survive until a caregiver can come to its rescue.
What is the term for the reflex that does not disappear and is demonstrated when an infant tries to clear his or her throat?- gag. What is the term for the reflex that does not disappear and is demonstrated when an infant tries to clear his or her throat? - Babinski.
How do we localize sound quizlet?*How do we localize sound? The difference in time of arrival of the sound wave arriving to the left and right ear. Is the difference in loudness and frequency distribution between the two ears.
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