PSY200 Test #1

Card Set Information

PSY200 Test #1
2010-01-26 18:10:09
Ch.2 and Ch.3

Show Answers:

  1. Action potential
    A brief change in a neuron's electrical charge.
  2. Cerebral cortex
    The convoluted outer layer of the cerebrum.
  3. Left Hemisphere
    Usually handles verbal processing, language, speech, writing
  4. Right Hemisphere
    Handles nonverbal processing, including visual-spatial and musical tasks, and perception of others emotions
  5. Soma
    Cell Body
  6. Dendrites
    Branching structures that receive signals from other cells
  7. Axon
    Fiber that carries signals away from soma to other cells
  8. Myelin sheath
    Insulating materiel that encases some axons
  9. Resting Potential
    Neurons stable
  10. Action Potential
    Voltage spike that travels along axon
  11. Absolute refractory period
    Brief time after action potential before another action potential can begin
  12. All-or-none law
    A neuron either fires or doesn't fire
  13. Neurotransmitters
    Chemicals that transmit information from one neuron to another.
  14. Reuptake
    A process in which neurotransmitters are sponged up from the synaptic cleft by the presynaptic membrane.
  15. Synaptic cleft
    A microscopic gap between the terminal button of a neuron and the cell membrane of another neuron.
  16. Mirror neurons
    Neurons that are activated by performing an action or by seeing another monkey or person perform the same action
  17. Antagonist
    A chemical that opposes the action of a neurotransmitter.
  18. Synapse
    A junction where information is transmitted from one neuron to the next.
  19. Mean
    The arithmetic average of the scores in a distribution.
  20. Median
    The score that falls exactly in the center of a distribution of scores.
  21. Mode
    The score that occurs most frequently in a distribution.
  22. Correlation coefcient
    A numerical index of the degree of relationship between two variables.
  23. Standard deviation
    An index of the amount of variability in a set of data.