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Nueroanatomy (Look at the slides for labeled anatomy parts of the brain,…
Nueroanatomy
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White matter
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Optic radiations
Projection fibres form lateral genetic nucleus to primary visual cortex/ Mediate geniculate nucleus to audiotory
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Imaging Techniques
Strucutural imaging
X rays and computed topography -based on differential absorption of x-rays by different tissues (e.g. brain and skull).
MRI- magnetic resonance imaging-based on differential hydrogen proton densities in different tissues.
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Diffusion tensor imaging, a MRI scan optimised to visualise fibre tracts
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Hemodynamic's techniques have a high spatial resolution for brain function but poor temporal resolutions, Electrophysiological techniques have a high temporal resolutions fo brain function, MEG has superior spatial resolution why is this the case????
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Cytoarchitecture
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Laminar organisation serves to separate out inputes and outputs and the prominence of different layers differs throughout the cerebral cortex
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Visual cortex is organised into two major streams of processing (Ventral and Dorsal) extracted and sent to specific destinations in extrastriate cortex
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Arterial Blood supply
Uses up 20% of blood oxygen and blood supply ,uses so much blood to feed sodium and pottasium pump