Final Exam Cog Sci 1 Midterm 1 UC Berkeley Questions and Answers 2024

Final Exam Cog Sci 1 Midterm 1 UC Berkeley Questions and Answers 2024 oligodendrocyte - CORRECT ANSWER-glial cell responsible for myelinating axons, thus insulating action potentials astrocyte - CORRECT ANSWER-glial cell responsible for bringing in nutrients microglia - CORRECT ANSWER-glial cell responsible for cleaning up dead cells neurotransmission - CORRECT ANSWER-electrical signal through neuron translated chemically to next cell resting potential - CORRECT ANSWER-a neuron at rest is charged at approximately - 70mV stimulus (action potential) - CORRECT ANSWER-something that causes the current neuron to depolarize toward the threshold potential depolarization - CORRECT ANSWER-when all Na+ channels open if the threshold of excitation is reached repolarization - CORRECT ANSWER-the peak action potential where K+ channels open and begin to leave the cell, causing the cell to be less positive. The action potential is sent. hyperpolarization - CORRECT ANSWER-the refractory period where an action potential cannot fire because K+ keeps leaving, making the action potential even more negative than normal Kandel's experiment - CORRECT ANSWER-used sea slugs and classical conditioning to link the tail electrocution and touching of the gill, so if the tail was touched, the gill would retract (shows Hebbian learning) Hebbian learning - CORRECT ANSWER-neurons that fire together wire together (if two cells consistently fire at the same time, then the strength of the connection between them will grow stronger) MEG (magnetoencephalography) - CORRECT ANSWER-superconducting sensors measure neuronal electrical activity fMRI (functional magnetic resonance imaging) - CORRECT ANSWER-magnetism used to measure blood oxygen levels (blood flow) (low temporal) EEG (electroencephalogram) - CORRECT AN