How do the physical properties of the ears help the brain decode and interpret sounds? Sound travels as osccialtion through some medium. The function of ears is to transmit the sound into electric messages which are sent to the brain which perceives and interprets the sound. Ears consist of three parts the outer ear, middle and inner ears. The outer ear consists of the pinna which collects the sound and transmits it to the ear canal, which amplifies the sound and transmits it to the tympanic membrane, the division between the outer ear and the middle ear.
Noise reduction allows you to choose how much volume of a noise to remove. Lesson 6 1. When someone suffers from hearing loss, what parts of their ears are damaged? When someone suffers from hearing loss the parts of the ears that are damaged are the inner ear and the inner ear’s hearing nerves. 2.
Two are canals called the scala tympani and the scala vestibuli. The third is called the organ of Corti. The scala tympani and the scala vestibuli are separated by the cochlear partition. Within the partition is the basilar membrane, and within the basilar membrane are numerous, tiny hair cells. Sound waves travel through the fluid of the cochlea and make the hair cells in the organ of Corti move.
The frontal lobe’s main functions are movement control and language production that thrive from the primary motor cortex. Whereas Wernicke’s area is located on the left side of the temporal lobe, called superior temporal gyrus, that is link with the auditory cortex, which associates memories, comprehension of language, emotion, and sensory input. There is a difference in aphasia between Broca’s and Wernicke’s area. Once the Broca’s area is damaged the person would have
Hemispheric specialization refers to the dominance of one hemisphere of the brain in specific functions, such as language, emotions, motor control and so on ( Feldman, 2009). The brain is a part of the central nervous system which is the subdivision of the nervous system. Its main role is to process sensory information from various parts of the body to make them meaningful. The brain receives sensory information from all parts of the body through the spinal cord (Passer & Smith, 2009). Basically, the brain is divided into three parts.
Oligodendrocyte produces a white substance call myelin that insulates the axons (Gross, 2009); destruction to the myelin consequently produces diseases called myelin disorders which results in demyelination (Thibodeau & Patton, 2005). Initially, this essay will be addressing the question on myelin and the aetiology of demyelination, followed by various neuropathological research carried out to determine the impact of multiple sclerosis (MS) on the brain and its relationship to cognition and depression. Myelin serves a fundamental purpose in the CNS due to the nature and mechanism of its necessary function. It is characterised as a white substance made of lipid fat and proteins, produced by the oligodendrocytes, a glia cell (Thibodeau & Patton, 2005). Its primary functions are producing, maintaining and repairing neurons along the long extension of the axons (Rodriquez, 2003).
An unconditioned response is a response to something that occurs regularly when an unconditioned stimulus is presented, e.g: the startle response to a loud noise. An unconditioned stimulus is stimuli that regularly and consistently lead to an automatic response from the loud noise. A conditioned response is a new learned response to previously neutral stimuli which mimics the response to the unconditioned stimulus. A conditioned stimulus is a neutral stimulus that, when paired with the unconditioned stimulus, produces a learned response, just as the unconditioned response used to. Another aspect the theory focuses on is positive and negative reinforcement.
The effects are alertness and arousal, and influences on the reward system. Anatomically, the noradrenergic neurons originate both in the locus coeruleus and the lateral tegmental field. The axons of the neurons in the locus
The nerve conduction velocity is determined by recording the motor response of a muscle to the stimulation of its motor nerve at two or more points along the nerve course. The time between stimulation and response is measured and compared to the distance between the point of stimulation and point of response. Precise parameters of measurement have been developed for the ulnar nerve and the motor response is measured over the abductor digiti minimi. The ulnar nerve comes from the medial cord of the brachial plexus, and runs inferior on the medial/posterior aspect of the
& Mitterer, J. O., 2013). The temporal lobes also play a significant role in understanding language. It is important to understand that there are association areas in both lobes and it is these areas that combine and process information from the senses. So although there are specific areas where we know auditory information is processed, such as in the temporal lobes, or where motor functions are controlled, such as in the frontal lobes, the association areas make up the majority of these lobes. Which is why damage to any part of these areas on the left hemisphere of the brain can cause aphasia, which is having “impaired ability to use language” (Coon, D. & Mitterer, J. O.,