Psych Ch 2

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Anonymous
ID:
169289
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Psych Ch 2
Updated:
2012-09-06 16:10:52
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Psych Biology
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Psychology Ch 2
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  1. Phrenology- Franz Ball
    • The shape of your skull mimicked your brain (false)
    • -Discovered the brain spreads out their work 
  2. Brain Lesions
    Cut out part of your brain adn see what functions you loose
  3. EEG
    • Electrical sensors placed around brain
    • -You don't get exact info just a broud idea
  4. Pet Scan
    • -Injected with glucose
    • -Do a series of functions
    • -It lights up what parts of your brain are working
  5. MRI
    • -Injected with dye
    • -You can see structural differences with a clear pic
  6. FMRI
    • -Watch the brain operate
    • -Combo of PET and MRI scans 
    • -Uses magnetic fields 
  7. Dendrites 
    • Recieve messages from other neurons 
    • -looks like tree branch
  8. Cell Body
    • If it gets enough messages then it will send it
    • The messages are sent to the Axon
  9. Myelin Sheath
    • Covers Axon and protects from damage
    • -speeds up the neural impulses
    • -Brain can communicate with itself faster
  10. Terminal Branches of Axon
    Messages are delivered to other nuerons
  11. Excitatory vs Inhibitory
    • Once threshold is met then gate opens and domino effect occurs 
    • It happens extremely fast but because there are so many different steps it takes you a min to respond
  12. Neurotransmission
    Electrical impulses travel from one neuron to another across a tiny junction known as a synapse
  13. Reuptake
    Sending neuron will reobsorb the leftovers 
  14. Central Nervous System
    Only brain and spinal cord 
  15. Peripheral 
    • Everything else (neurons)
    • Stomatic
    • Autonomic
  16. Somatic NS
    Voluntary movements of your muscles
  17. Autonomic
    • Controls self regulated actions 
    • (heart beat, breathing)
  18. Sympathetic
    Arousing
  19. Parasympathetic
    Calming
  20. Medulla
    Heartbeat and breathing
  21. Pons
    Coordinate movements
  22. Reticular Formation
    Controlling arousal level
  23. Thalamus
    Helps filter sensory uniformation
  24. Cerebrellum
    • Little brain, helps coordinate movement and balance judge time, regulate emotions
    • *Alcohol effects this 
  25. Limbic System
    • several structures in brain 
    • associated with motivation, emotions, ect
  26. Hippocampus
    Associated with Memory forming 
  27. Amygdala
    Almond shaped, fear and aggression
  28. Hypothalamus
    • Below thyalamus
    • Motivation and drives, 
    • 4 F's
  29. The 4 F's
    Feeding, Fleeing, Fighting, Mating 
  30. Cerebral Cortex
    • All of complex abilities
    • language, think, lie, move body
  31. Frontal lobe
    Abstract thinking, planning, speaking, personality
  32. Perietal lobe
    Sensory info to touch
  33. Occipital lobe
    Visual info
  34. Temporal lobe
    Auditory info 
  35. Cortex functions
    • Motor cortex- moving body
    • Sensory cortex
  36. Fineas Gage
    • Railroad worked and rod through head
    • -we now know the frontal lobe is associated with the personality b/c his changed drastically 
  37. Language steps 
    • 1. visual cortex- written words
    • 2. angular cortex- visual to auditory code
    • 3. Wernicke's area- interprets auditory code
    • 4. Broca's Area- Controls speech muscles 
    • 5. Motor Cortex- Word is pronounced
  38. Left Hemisphere
    Speaking
  39. Right Hemisphere
    Visual 

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