![]() ![]() It is in this context that we can begin to consider the goal of auditory development, the conditions under which changes in auditory mechanisms generally result in beneficial outcomes for the listener, and, conversely, conditions under which changes bring about negative consequences. An important feature of the staging is the combination of inputs from the right and left ears, which takes place several synapses after the initial impact of sound on the auditory sensory organ, the cochlea. Auditory processing occurs in a series of analysis stages, beginning with peripheral auditory mechanisms devoted to encoding sound, and proceeding to more complex stages at which sound processing leads to perception and object recognition. While the auditory system regularly interacts with other sensory modalities, much of what we understand about auditory perception and development is rooted in studies that focus the auditory signal per se. In other words, the auditory system engages in an analysis of the auditory world, so that the listener can accomplish the goal of communication and learning. Generally, the auditory system serves the role of constructing a perceptual space that extracts information from objects (animate and inanimate), groups together some objects, and segregates sounds from one another. The purpose of auditory perception and processing of auditory signals may be questioned. The ability of the auditory system to adapt in response to novel stimuli is a key feature of development throughout the nervous system, known as neural plasticity. However, non-auditory changes (attention, memory, cognition) play an important role in auditory development. While some basic abilities are well developed at birth, there is a clear prolonged maturation of auditory development well into the teenage years. In the latter case, the ability of the auditory system to perform an analysis of the scene becomes highly relevant. Coding of information has been studied for features of sound, including frequency, intensity, loudness, and location, in quiet and in the presence of maskers. Auditory signals are processed in a series of analysis stages, from peripheral to central. ![]() The auditory system constructs a perceptual space that takes information from objects and groups, segregates sounds, and provides meaning and access to communication tools such as language. Human development occurs along a trajectory that can last decades, and is studied using behavioral psychophysics, as well as physiologic measurements with neural imaging. Auditory development involves changes in the peripheral and central nervous system along the auditory pathways, and these occur naturally, and in response to stimulation. ![]()
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