The sonic character of one’s habitat is a compilation of sounds from a variety of sources. If hearing is absent at childbirth, the hearing community and surrounding environment is incompatible with the child’s communicative abilities* (SACKS, Oliver, 1989, 1990).įor the average hearing individual, sound defines the surrounding environment. These associations promote the development of survival responses to signals, language acquisition and eventually logical thought. Children who are born deaf or who lose their hearing ability before language acquisition are at a greater disadvantage than are post-lingually aural disabled individuals because infants acquire a database of connections that link optical with aural memories. This premise is based on research and testaments of aurally impaired individuals who report that being deaf is potentially a more serious challenge than is being visually impaired. Thus, the auditory sense is the primary channel of comprehension and communication. This research recognises that spatial awareness occurs when the auditory organ receives and neural synapses decipher stimuli. The auditory sense evolved primarily to increase awareness of one’s surroundings, to detect danger, and to communicate. Unlike ears, eyes have lids, and, even in vacuum, a person can apprehend his or her heartbeat, movement of internal organs and blood flow. An example of this perception is unborn children who are aware of their surroundings through sound perception (GAUNDERLACH, Jonathan, 2007). The human visual and auditory senses evolved together.
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