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Meet your amazing brain


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This presentation is about how the brain works from an educational point of view. It contain examples and a brief definition and an explanation of how the brain works.

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Meet your amazing brain

  1. 1. Meet your amazing brain!!! Benjamin Leiva Javier Moraga
  2. 2. 78% Water 10% Fat 8% Protein
  3. 3. /ˈɡliːə/ or /ˈɡlaɪə/
  4. 4. William Shankle of the University of California-Irvine, asserts the human brain has about 30 to 50 billion neurons. His studies show a 20 to 40 percent variance among human population.
  5. 5. 150 to 200 billion neuron cells and we keep 100 billion of them. 500 billion to 1.000 billion glial cells.
  6. 6. 100.000 Neurons 5 million Neurons 10 billion Neurons
  7. 7. The Human Brain is related to the body weight. The adult human brain weighs about 3 pounds (1 kilo and 300 grams)
  8. 8. Would a bigger brain make you smarter?
  9. 9. Back of the head. Vision. Left and Right side of the brain. Hearing, memory, and language. Forehead. Judgement, creativity, problem solving, and planning. Short-term memory Its duties include processing higher sensory and language functions. It also h a cool tie-in with the Sci Fi Channel.
  10. 10. The limbic system, it represents 20 percent of the brain by volume. Joseph LeDoux says there is no real “limbic system,” only specific structures that process emotion, such as the amygdala.
  11. 11. • Adaptability. The brain changes constantly. = It is NOT static. Everyday actions change your brain MOREOVER, it changes since you are born ultil the end!
  12. 12. Neurons can be born, die and be killed. And sometimes… YOU ARE THE KILLER!
  13. 13. Integration: How the Brain structures compete and cooperate. Brain cells are “connected” to other brain cells by physical structures such as axons, which are extensions sent out by neurons. Bloodstream creates a common network, circulating brain chemicals known as neurotransmitters (e.g., serotonin, dopamine, and acetylchoine) and hormones known as neuromodulators (e.g., ortisol and adrenaline).
  14. 14. Integration: How the Brain structures compete and cooperate. Information is also communicated through the immune system and “messenger molecules” known as peptides. The two sides of the brain, the left and right cerebral hemispheres, are connected by bundles of nerve fibers. The corpus callosum is the largest connective pathways, with about 250 million nerve fibres.
  15. 15. Richard Davidson (1992) at the Laboratory for Affective Neuroscience at the University of Wisconsin has shown that the right hemisphere is activated with negative emotions and the left hemisphere is activated with positive emotions. People with more left-hemisphere activations tend to be happier and more positive than those with a right hemisphere dominance.
  16. 16. Integration: How the Brain structures compete and cooperate “Competition within the brain” sounds a little like malfunction to be corrected. The competition concept is simple: whatever is first, whatever activities are more frequent, and whatever actions are more coherent will “win” the competition for network wiring and signal the brain to allocate space and resources to that set of behaviours.
  17. 17. • Sophistication. The brain is highly complex.
  18. 18. Neurons have a cell body, a tail-like extension called an axon, and branchlike structures called dendrites. The junction between two connected neurons is called a synapse. Neurons use both chemical and electrical signals for processing
  19. 19.  Modification of existing connections : Connections are re-programed.  Elimination of synapses : Synapses eliminated through experience.  Growth of new connections : LEARNING.
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