3 - PSY308 Biopsychology The anatomy of the nervous system:...

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PSY308 Biopsychology The anatomy of the nervous system: Function
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Overview Major divisions of the brain e.g.) forebrain, midbrain, hindbrain Functions of different brain areas/systems e.g.) Basal Ganglia, Limbic system
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Divisions of the nervous system Rosenzweig M.R. et al., Biological Psychology (2005)
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Hindbrain Medulla Pons Nucleus raphe & Reticular formation : overall Arousal (consciousness) Reticular formation Rise of cranial nerves in this area Fiber (Axon) crossings
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Hindbrain: Cerebellum Purkinje cells Control of fine movement (timing and coordination) -found only in the cerebellum
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Midbrain Superior colliculi Inferior colliculi Tegmentum Tectum Visual Auditory
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Tegmentum Periaqueductal gray (PAG) Red nucleus (RN) Substantia nigra compacta (SNc) Substantia nigra reticulara (SNr) Ventral tegmental area (VTA) Midbrain dopamine system PAG Analgesia/Pain information RN Motor control e.g. crawling, swinging arms SNc SNr Motor system VTA Reward circuitry Coronal section of rat midbrain
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Forebrain Diencephalon Thalamus Hypothalamus Segment of optic chiasm Pituitary gland
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3 - PSY308 Biopsychology The anatomy of the nervous system:...

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