Maps of the Auditory Cortex
Autor: | Brian Barton, Alyssa A. Brewer |
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Rok vydání: | 2016 |
Předmět: |
0301 basic medicine
Auditory Pathways Speech perception Nerve net 1.1 Normal biological development and functioning Sensory system Auditory cortex Macaque Brain mapping Article 03 medical and health sciences 0302 clinical medicine Underpinning research biology.animal medicine Psychology Animals Humans tonotopy Auditory Cortex Behavior Brain Mapping Neurology & Neurosurgery biology General Neuroscience Neurosciences Ear Magnetic Resonance Imaging 030104 developmental biology medicine.anatomical_structure Visual cortex auditory field maps periodotopy phase-encoded fMRI Neurological Cognitive Sciences Nerve Net Tonotopy cortical mapping Neuroscience 030217 neurology & neurosurgery |
Zdroj: | Annual review of neuroscience, vol 39, iss 1 |
ISSN: | 1545-4126 0147-006X |
Popis: | One of the fundamental properties of the mammalian brain is that sensory regions of cortex are formed of multiple, functionally specialized cortical field maps (CFMs). Each CFM comprises two orthogonal topographical representations, reflecting two essential aspects of sensory space. In auditory cortex, auditory field maps (AFMs) are defined by the combination of tonotopic gradients, representing the spectral aspects of sound (i.e., tones), with orthogonal periodotopic gradients, representing the temporal aspects of sound (i.e., period or temporal envelope). Converging evidence from cytoarchitectural and neuroimaging measurements underlies the definition of 11 AFMs across core and belt regions of human auditory cortex, with likely homology to those of macaque. On a macrostructural level, AFMs are grouped into cloverleaf clusters, an organizational structure also seen in visual cortex. Future research can now use these AFMs to investigate specific stages of auditory processing, key for understanding behaviors such as speech perception and multimodal sensory integration. |
Databáze: | OpenAIRE |
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