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Neurological Quiz: Brain Functions & Structures

Test your knowledge on brain structures, functions, plasticity, and sensory homunculus in this interactive quiz. Understand neural plasticity and brain recovery processes.

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Neurological Quiz: Brain Functions & Structures

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  1. Psyc 001 Week 6

  2. Quiz 4 • Please clear your desk of everything except for a pen or pencil and a piece of paper. • No talking or use of cell phones or electronics. • Write your name, section number (or section time), and date on the piece of paper.

  3. 1. The sensory homunculus... • represents the time it takes to process information from each part of the body • represents the space in the somatosensory cortex devoted to each part of the body • represents the visual world • represents the amount of time we use each body part 2. What does the Sodium/Potassium pump do? • Moves 3 sodiums in and 2 potassiums out • Moves 2 sodiums in and 3 potassiums out • Moves 2 sodiums out and 3 potassiums in • Moves 3 sodiums out and 2 potassiumsin

  4. 3. What recovery would you see in a child who has had a brain lesion? • Good, the plasticity of the brain is very effective in young childhood • Poor, the brain is not plastic • None it would most likely cause death • Excellent, there is very little recovery time and they will always be perfectly normal 4. Which of these does NOT measure brain activity? • EEG • PET • MRI • fMRI

  5. 5. What is neural plasticity? • Ability of a neural cell to change the shape of its soma • Ability of neural circuits to change • Inability to create new neurons • Stabilization of neural circuits (no change) 6. Which lobe contains the auditory cortex? • Frontal lobe • Parietal lobe • Temporal lobe • Occipital lobe

  6. 7. What does the corpus callosum look like? (taken from the movie on Wednesday) • white/cream strip spanning into both the left and right hemispheres • red/pink strip spanning into both the left and right hemispheres • white/cream strip spanning the prefrontal cortex • red/pink strip spanning the prefrontal cortex 8. Which has the larger representation on the somatosensory homunculus? • lips • ankle • back • shoulder

  7. 9. An adult has the same neural plasticity as a child. • true • false 10. When identifying a lesion a physician would use a structural brain scan. • true • false

  8. Sodium/Potassium Pump • http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_the_sodium_potassium_pump_works.html • What does the Na+/K+ pump do? • After an AP it moves the Na+ and K+ back to their original sides of the cell wall

  9. Brain Structure vs Function Structure Function Documents changes in the brain during different activities fMRI EEG PET • Documents the physical structure of the brain • MRI • CT • As a physician when would you want to look at structure? Function? • As a researcher when would you want to look at structure? Function?

  10. Auditory Cortex • Map of pitches in the auditory cortex (carried over from the cochlea)

  11. Somatosensory Cortex • What is implicated by different sized representations in the cortex?

  12. Neural Plasticity • What is neural plasticity? • It’s the ability of neural circuitry to change • What does it look like? • Memory • Learning • http://www.ted.com/talks/michael_merzenich_on_the_elastic_brain.html

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