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There are two sound pathways by which we hear: bone conduction and air conduction. The air conduction pathway involves vibrations in the air being transmitted from the ear drum, through the bones of the middle ear, which act as a lever, to our fluid filled inner ear. The lever acts as an impedance matcher between the air and fluid filled inner ear. It ...


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First, a definition: "Synaesthesia is a curious condition in which an otherwise normal person experiences sensations in one modality when a second modality is stimulated." [1] There are two basic explanations for this phenomenon: the hyperconnectivity hypothesis and the disinhibition-unmasking hypothesis [2]. The former says that the condition results from ...


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Auditory information is conveyed to the brain from the cochlea via the VII cranial nerve (aka auditory vestibular nerve). Under standard conditions the vestibular system gets activated when we move our heads. If we spin around rapidly this can obviously make us feel dizzy and nauseous. The vestibular system can also be activated do to other causes. For ...



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