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Sound localization is the ability to correctly identify the directional location of sounds, typically quantified in terms of azimuth (angle around the horizontal plane) and elevation (defined in various ways as an angle from the horizontal plane). The time, intensity, and spectral differences in the sounds arriving at the two ears are used in ...
The brain utilizes subtle differences in loudness, tone and timing between the two ears to allow us to localize sound sources. [10] Localization can be described in terms of three-dimensional position: the azimuth or horizontal angle, the zenith or vertical angle, and the distance (for static sounds) or velocity (for moving sounds). [ 11 ]
Flowchart of sound passage - middle ear. The middle ear plays a crucial role in the auditory process, as it essentially converts pressure variations in air to perturbations in the fluids of the inner ear. In other words, it is the mechanical transfer function that allows for efficient transfer of collected sound energy between two different ...
The neuroscience of music is the scientific study of brain-based mechanisms involved in the cognitive processes underlying music.These behaviours include music listening, performing, composing, reading, writing, and ancillary activities.
VOT is a primary cue signaling the difference between voiced and voiceless plosives, such as "b" and "p". Other cues differentiate sounds that are produced at different places of articulation or manners of articulation. The speech system must also combine these cues to determine the category of a specific speech sound.
Depending on where the source is located, our head acts as a barrier to change the timbre, intensity, and spectral qualities of the sound, helping the brain orient where the sound emanated from. [5] These minute differences between the two ears are known as interaural cues. [5]
Auditory agnosia is a form of agnosia that manifests itself primarily in the inability to recognize or differentiate between sounds.It is not a defect of the ear or "hearing", but rather a neurological inability of the brain to process sound meaning.
Volley theory states that groups of neurons of the auditory system respond to a sound by firing action potentials slightly out of phase with one another so that when combined, a greater frequency of sound can be encoded and sent to the brain to be analyzed.