Hearing perception3/2/2024 ![]() Language and communication are made possible by specialized structures. It appears that words are not "built into" the brain, because language is a relatively recent evolutionary development and also because languages differ substantially from one another. Some consider language to be an evolutionary product, while others do not. Some believe that language is inborn and purposeful, while others believe it to be artificial and arbitrary. Since the time of Plato, there has been debate over the nature of language. Language acquisition: imprinting and critical periods Your ears produce sounds of their own that are normally inaudible to the brain. Learning about the limitations of our senses can help students interpret their environment more accurately. Our level of awareness is influenced by our individual abilities, our genes, our environment, and our previous experiences, as well as the interactions among them. Much sensory information exists beyond our ability to experience it. This module will make students aware that our senses react to only a limited range of the energy inputs available. For example, whales communicate using low-frequency sounds that are inaudible to humans and can carry across vast expanses of ocean. Also, they might not be aware that some animals use sound frequencies that are out of our hearing range. Most students would be quite surprised to learn that their ears produce measurable sounds of their own that are normally inaudible to the brain. They may believe that what they perceive is all that there is. Younger students are often unaware of the limitations of their senses. Misconception 1: Our senses provide a complete and accurate picture of the world Over the past decade, scientists have begun to understand the intricate mechanisms that enable the ear to convert the mechanical vibrations of sound to electrical energy, thereby allowing the brain to process and interpret these signals. This notion is different from the long-held view that the brain processes information one step at a time in a single brain region. It perceives and interprets them using a "computational" approach that involves several regions of the brain interacting all at once. ![]() The brain then works as the central processor of sensory impulses. 11Ĭontemporary hearing research is guided by lessons learned from sensory research, namely that specialized nerve cells respond to different forms of energy-mechanical, chemical, or electromagnetic-and convert this energy into electrochemical impulses that can be processed by the brain. A recent study showed that men who hunt experience an increased risk of high-pitched hearing loss of 7 percent for every five years that they hunt? Nearly all (95 percent) of these same hunters report that they do not use hearing protection while hunting.
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