Sound Waves Affecting The Brain's Perception Of Sound

The snail like shape of the cochlear effectively boosts the strength of the vibrations caused by sound, especially for low pitches. When sound waves hit the ear drum, tiny bones in the ear transmit the vibrations to the fluid of the cochlea, where they travel along a tube that winds into a spiral. The tube’s properties gradually change along its length, so the waves grow and then die away, much as an ocean wave travelling towards the shore gets taller and narrower before breaking at the beach.

When a person with normal hearing hears the sound travels along the ear then bounces against the ear drum. The eardrum, the bones inside, and the cochlea vibrate and move thousands of tiny hairs inside the ear. When these hairs move an electrical response occurs. This electrical response goes to the hearing nerve and then it is send to the brain.

Pitch: Auditory experience corresponding primarily to the frequency if vibrations, resulting in giver or lower tones.

When I think about pitch the first things come to mind are instruments. This reminds me in middle school if you wanted to a part of the band, you got to test each instrument. I always had a fascinating with a flute, which had high a frequency and high pitch. Another instrument was a trombone; this had a low frequency and low pitch. This helped me understand the difference between pitches.

The middle ear has three ossicles (tiny bones) the hammer, the anvil, and the stirrup that connect the middle ear to the inner ear. When sound enters your middle ear, it causes the ossicles to vibrate. These vibrations then move into the cochlea, which is filled with fluid. When the vibrations move the fluid that is in the cochlea, it stimulates tiny hair cells that respond to different frequencies of sound. After the tiny hair cells are stimulated, they direct the frequencies of sound into the auditory nerve, as nerve impulses. (ASHA 2013)

The physiology of hearing starts with a vibration that occurs in the air which sends an acoustic signal to the ear drum. The signal is transduced into a mechanical signal that transmits through the inner ear and the cochlear nerve. Finally, the signal is

understand the invisible connection that so many of us feel towards music one must first understand at least the basics of music theory. How is it that a combination of pitch all caused by synthetic or

Sound waves are nothing more than an energy transfer through a medium be it through a liquid, solid, or a gas. Sound pressure or intensity is measured on logarithmic scale in decibels dB which increases on an order of magnitude. For instance a quiet conversation would be around 30 dB and whereas the human pain threshold would be just over 100 dB. While the pitch or frequency of the sound is measured in hertz or Hz, the higher the hertz the higher the pitch of the sound and vice versa (Hildebrand, 2004).

Musicians know that all vibrating objects make sounds. Frequency measure how many times a string vibrates up and down. If a musician changed the length of the string, it also changed the frequency. High frequency will always equal a high pitch. When an octave is increased the frequency will double. Pythagoras discovered different sounds could be made with different weight and vibrations. Due this discovery, they also realized pitch could be controlled by the length of the string.

The ear is made up of three parts: the outer ear, the middle ear and the inner ear. The outer ear is responsible for collecting the sound wave, the middle ear increases the sound energy and transmits the sound to the inner ear and finally the inner ear transforms the sound waves into nerve impulses and sends them to the brain. When the sound wave passes the ear canal there is a vibration in the eardrum which affects 3

Basically how sound travels through the ear is a process of many steps. The sound waves are gathered by the pinna and then funneled into the meatus. Those waves then begin to vibrate the tympanic membrane which in turn hits against the malleus. The ossicle bones then vibrate like a chain reaction. The footplate will hit the oval window which triggers the fluid in the cochlea to move. The movement sways across the different hair cells creating impulses that are sent to the brain through the eighth cranial nerve.

The sound waves are produced by a random oscillating crystal, and are inaudible to humans. A instrument called a

Sound is apart of our everyday lives. Regardless of if it's the sound of a leaking water faucet, the tapping of a pencil or even the whistling of wind, we’re surrounded by the physics of sound at all times. Sound waves come in various

What is a sound wave? A sound wave is produced by a mechanical vibration, such as a tuning fork. The vibrating object causes the surrounding medium, such as air, to vibrate as well.The wave travels through the medium to a detector, like your ear, and it is heard.As with any type of wave, a sound wave is also described by it's wavelength, amplitude, period, and frequency.

Music has been apart of society for thousands of years and an outlet for people's stress and other problems they may be facing. It helps the brain function and understand conditions better by breaking it down and trying to comprehend it. Music has made and is still making an impact on the lives of people all around the world. Because of its impact on peoples lives neuroscientist wanted to get to the source and have been looking at the brain to determine the exact effects of music and they can now answer the question, what effects does music have on the brain? Listening to music can send pleasure to your mind, decide your emotions, lower stress, and improve learning.