PSYB65H3 Chapter : PSYB65 Ch 5

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4 Jan 2012
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Our brain organizes movement that utilizes a parallel and hierarchical system that relies on functional segregation if not, our time would be spent programming out the sequences of movements rather than actually moving. Anesthetic you get @ the dentist works by its ability to block sodium channels in the trigeminal nerve (cranial nerve v) thus preventing them f/ opening. Many of the adjustments that we make to our movements are guided by somatosensory feedback (think of the former darts champion g. o and his infected arms) Many of the automatic adjustments that make to movements occur unconsciously these adjustments are made w/o the involvement of higher cortical areas and are resistant to interference f/ higher cortical areas. Much of the somatosensory info that we receive about the world comes f/ sensory receptors in the skin (we can feel lots of diff sensations like vibration, pressure, pain, and touch)