PSY 102 Lecture Notes - Lecture 3: Midbrain, Motor Cortex, Cerebral Cortex
28 Feb 2014
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Complicated mathematics; to bring arm to the front or touch nose o o. Precise combination of muscle tension: compensate for weight of object/shape. Brain decoding sound, patterns of vibration => air molecules: waves in the air molecule, ear drums are moving -> decoding into words. Brain does tasks that we don"t listen to. Brain consists of 100000000000 neurons that connected to one another. Sensory (afferent) neurons outside world physical movement: language of the brain, vibration -> signals o. Interneurons: coordinate and take in what"s happening in the outside world: motor neurons: efferent (see glass of water, pick up glass, glial cells: support network, enable you to think about things o. Placeholders; efficient due to structure: nutrient/oxygen supplier (feed neuron, housekeeper: clean away and recycle o. Insulator message will dissipate if otherwise (cover neuron with fatty layer speed up signal) Structure of neuron s: dendrites connected to neurons receive info o.
