Unit 1: Biological Basis of Behavior A-H

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Across
  1. 1. The brain region behind the forehead, involved in planning and judgment.
  2. 3. Analysis that begins with sensory input and moves up to higher processing.
  3. 4. A brief electrical charge that travels down the axon of a neuron.
  4. 6. The brain’s main excitatory neurotransmitter.
  5. 11. The main inhibitory neurotransmitter in the brain.
  6. 13. Neurons in the retina that transmit visual info to the brain.
  7. 16. In vision, the process by which the lens of the eye shifts to focus on a particular object.
  8. 17. The theory that sleep helps strengthen the neural connections for memory.
  9. 19. The band of fibers connecting the brain’s two hemispheres.
  10. 23. The transparent outer layer of the eye that helps focus light.
  11. 25. Photoreceptors in the retina responsible for color vision and detail.
  12. 26. Theory that nerve impulses match a tone’s frequency to determine pitch.
  13. 27. Brain region that controls hunger, thirst, body temperature, and the pituitary gland.
  14. 28. The brain and spinal cord, responsible for processing and coordination.
  15. 31. Branchlike parts of a neuron that receive messages.
  16. 33. Drugs that reduce neural activity and slow body functions.
  17. 34. Units of heredity made of DNA that code for proteins.
  18. 35. Cells that support and protect neurons, and assist in learning and thinking.
  19. 40. A neurotransmitter involved in muscle activation, memory, and learning.
  20. 41. A condition where a person responds to visual stimuli without conscious awareness.
  21. 43. The idea that the brain processes information on conscious and unconscious tracks.
  22. 46. The number of wave cycles per second in sound or light.
  23. 47. The sense of taste.
  24. 48. Chemical messengers that regulate body processes.
  25. 49. The part of the brain that processes auditory information.
  26. 50. A theory that dreams are the brain's attempt to make sense of random neural activity.
Down
  1. 2. A region in the frontal lobe responsible for speech production.
  2. 5. The relatively slow brain waves associated with relaxation and wakefulness.
  3. 7. A drug or chemical that inhibits or blocks neurotransmitter actions.
  4. 8. The brain’s outer layer, responsible for higher cognitive functions.
  5. 9. The nerve that carries visual information from the retina to the brain.
  6. 10. All the nerves outside the brain and spinal cord.
  7. 12. The part of the peripheral nervous system that controls involuntary functions.
  8. 14. Theory that spinal cord "gates" can block or allow pain signals.
  9. 15. Awareness of ourselves and our environment.
  10. 18. Part of the brain that processes sensory information like touch and body position.
  11. 20. Known for work on visual processing with Torsten Wiesel.
  12. 21. The smallest difference between stimuli detectable 50% of the time.
  13. 22. A hindbrain structure that helps coordinate movement and balance.
  14. 24. A drug or chemical that enhances the activity of neurotransmitters.
  15. 29. The oldest part of the brain, responsible for automatic survival functions.
  16. 30. The “master gland” that controls other glands in the endocrine system.
  17. 32. The minimum stimulation needed to detect a particular stimulus 50% of the time.
  18. 33. When a neuron's membrane potential becomes less negative, allowing it to fire.
  19. 35. The complete genetic material of an organism.
  20. 36. A condition marked by the inability to understand or express speech.
  21. 37. A brain structure involved in memory formation and storage.
  22. 38. The principle that a neuron either fires completely or not at all.
  23. 39. The height of a wave, which determines the loudness of a sound.
  24. 42. A neurotransmitter involved in reward, pleasure, and motor control.
  25. 44. A limbic system structure involved in processing emotions like fear and aggression.
  26. 45. The point where the optic nerve leaves the eye, creating a gap in vision.