The Brain And Its Effects On Human Brain

This essay will reflect my thoughts on chapter 9. In brief this chapter deals with how the ears allow us to be able to hear and process sound. When I first think of sound I think of the frequency. This makes me think of songs that I listen too in order to determine it 's a high frequency or a low frequency. I 'll be able to determine the amount of hertz that are in songs on the radio. I do feel that it would be hard to determine because most of that music is reordered, hearing people sing a cappella would be easier to determine the amount of hertz present. I know what hertz are, but I 'm still not sure how they are actually determined? Are they sounds just determined by our brain if we have unimpaired hearing. How would someone like my brother with a whole in his ear be able to determine frequency?

interpreted by sound receptors on the skin. This is transmitted to the brain for integration before

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).

Detects different physical characteristics of pressure waves: • Pitch: perception of the frequency of sound waves (umber of wavelengths that pass a fixed point in a unit of time) • Loudness: the perception of the intensity of sound (the pressure exerted by sound

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

In the article, " Hearing Sound Does not Require Ears," the author, Tabitha Callaway, states that, "Imagine meeting someone who speaks in a foreign language. You may be able to hear all of the sounds they are making, but unless you are familiar with the language they are speaking, you cannot understand what they are saying." This shows the final way how sound works, especially for humans. What the author is trying to explain is that, because the brain does not know this native language, the brain does not know what to do with the sounds. Our brains cannot translate these sound vocal cords if we do not know the language. Although the brain may be able to process the tone of the voice that is speaking ( the voice could be angry, sad, or full of fear,) we would not be able to process the words into our native language, because we do not know the language the other person is speaking. That was the final way sound

R Studio was used to calculate the statistics in this experiment. We compared participant’s perception of sounds (proportion of voiced responses) with stimuli of different laterality and precursor. A voiced sound is a speech sound produced with the vibration of the vocal cords while devoiced sound is one produced with no vibration of the vocal cord. Data from 19 participants were included in the analysis. Each participant listened to 4 different types of sound: 1) Laterality of 0 (sounds presented with equal amplitude) and a precursor of 1. For example, “span” seemed to be presented to the center sounding like “s-pan.” 2) Laterality of 150 (sounds presented with opposing amplitude) and a precursor of 1. For example, “s” seemed to be presented to the right while “pan” is to the left, or vice versa. 3) Laterality of 0 (sounds presented with equal

Audition is the term used to define hearing, and involves sound waves, which are interpreted by our brains to help us distinguish individual sounds. The process of hearing starts in the outer ear, which sends sound waves to the ear drum. The ear drum vibrates and hits the tiny bones in the middle ears, followed by the stirrup, one of the tiny bones, to hit the oval window of the cochlea. Vibrations from the striking of the oval window cause waves in the fluid in the inner ear to deflect the basilar membrane. Hair cells are bent, then interact with the auditory nerve, followed by neural impulses being passed onto the brain which translate the impulse into information that tells us what sound was just heard.

- forms when a sound wave reflects off a hard surface and rebounds back to its original source, essentially becoming the reflection of a sound wave.

“The Voice of the Natural World” is an intriguing and worrying TED Talk by natural sounds expert Bernie Krause. Krause explores the fundamental properties of sound in the natural world, presenting the ideas of geophony, biophony, and antrophony. Krause also explores some unexpected results which showcase the effects of humans within this natural harmony.

And both forms of entertainment of radio and television broadcast has much to do with sound behavior. And this video being heavily integrated with sound, an aspect of physics. To my belief, this video was design to persuade or to catch the interest of young Americans to be familiar or to pursue a life into STEM fields. To encourage students to learn math, science, physic, engineering. To change the world in the hearth of America.

It is within this framework that I consider important to study the way in which sound is

Sound localization occurs via interaural delay and interaural intensity, which affect the olivary bodies. Binaural hearing, the use of both ears, allows these processes to occur. However, individuals with asymmetric hearing loss or autism may struggle with sound localization, as binaural hearing is impossible and the olivary bodies have defects, respectively. One of the properties of sound, amplitude, tests spatial hearing abilities in this experiment. The hypothesis states that an increase in amplitude results in improved sound localization. In the study, a 180-degree angle was formed by lettered points. Blindfolded subjects pointed to the location a sound was played at, albeit a loud, moderate, or soft tone. Additionally, subjects completed trials in which the right ear was shut and both ears were open, in order to test binaural versus monaural hearing.

Sound is an important input affecting the nervous system. The brain reacts to sound input because information signals are able to travel from the outside environment, across action potentials and through the neural

Acoustics is the science of sound generation, transmission and reception. Acoustics was invented by the Greek philosopher Pythagoras which experiments of vibrating strings that produced pleasing musical intervals were so advanced that a tuning system that bears his name. There are many stories of how Pythagoras founded this system. John G. Landels argues that, “Pythagoras was listening to four blacksmiths working in shop. Each hammer made various pitches every time the hammer stuck another piece of metal”.