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Gre Psychology: Experimental/natural Science Biology

Subjects : gre, psychology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Emotional perception and expression (particularly fearful emotions and detection of threat)






2. Has a major role in metabolism - stimulation/maintenance - produces the hormones thyroxin and calcitonin






3. Glossopharyngeal Nerve - taste swallow






4. Has neurons for reflexes






5. Increasing effects/effectiveness of a medication due to repeated administration






6. Located in the midbrain - a group of neurons which produce dopamine and degenerate in Parkinson'S Disease






7. Sign






8. A 90-minute activity cycle occurs throughout the day as well as throughout sleep (in humans) waxing and waning alertness controlled by a biological clock in the caudal brainstem that also controls cycles of REM and slow-wave sleep






9. Moving forward






10. Pass the easiest through the blood-brain barrier






11. A BEHAVIOR; insistent urge of sleepiness forces us to seek sleep/a bad






12. When a neuron reaches its excitation threshold - the neuron will produce an action potential of FIXED amplitude regardless of the magnitude of the stimulation






13. Tremors - rigidity of limbs - poor balance and difficulty initiating movements

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14. Occurs under drug-induced conditions - including excessive use of marijuana; high body temperature - autonomic instability and muscle rigidity






15. Part of limbic system; protrusion of the bottom of the brain at the posterior end of the hypothalamus - contains some hypothalamic nuclei






16. Increases heartrate - dilates/constricts blood vessels - increases blood sugar - produces hormones epinephrine and norepinephrine






17. Fluid filled cavities in the middle of the brain - linking to the spinal canal that runs down the middle of the spinal cord; this fluid is cerebrospinal fluid






18. Functions in metabolism (carbohydrate - protein - lipid) and in the endocrine system'S salt/water balance - produces the hormones cortisol and aldosterone






19. Governs eating/drinking (lateral and ventromedial hypothalami) and sexual activity (anterior portion






20. Located underneath the cerebral cortex and includes the bottom portion of the forebrain - cerebellum - basal ganglia - medulla - pons - midbrain - thalamus - hypothalamus - amygdala - hippocampus






21. Most brain communications are with the opposite side of the body






22. Symptom of narcolepsy; complete paralysis that occurs while AWAKE/conscious; will suddenly fall to floor paralyzed for a few minutes






23. Forebrain -band of nerve fibers connecting the two cerebral hemispheres






24. 'covering'






25. Contains delta activity - stages III and IV






26. In the CNS - is an amino acid that stabilizes neural activity






27. The earlier onset of puberty seen in female animals that are housed with males caused by a pheromone in the male'S urine and first observed in mice






28. Follow Hering'S Opponent Process of color vision - and only have two types: red-green and yellow-blue; other levels of color vision are tri-chromatic






29. 'little brain'






30. Means 'Savory' in Japanese and is a taste receptor found on the tongue; activated by glutamate present in meats - cheese and other protein heavy foods






31. Portion of a sensory field to which a cell responds






32. Occurs for body temperature - blood glucose levels - blood concentration - etc -hormones are important






33. Having two copies of each chromosomes in most cells (except the gametes) - e.g. most mammals






34. The scientific study of animal behavior; documentation of species-specific instinctual behaviors






35. The slowing and eventual cessation of estrous cycles in groups of female animals that are housed together; caused by a pheromone in the animals urine and first observed in mice






36. Adenine - Guanine - Thymine - Cytosine






37. Receptors whose activation directly affects potassium or chloride ion channels in the neuron - (many drugs of abuse substitute for natural GABA- alcohol - benzos - barbituates






38. Symptom of narcolepsy - paralysis occurring just before a person falls alseep






39. A region of the visual association cortex located in the extrastriate cortex at the base of the brain that has special face-recognizing circuits (more important in right hemisphere)






40. Regulates body temperature






41. Occurs at the onset of puberty; a hypothalamic hormone that stimulates the pituitary gland to secrete gonadotropin






42. Audition: protrusions on top of midbrain; part of auditory system






43. These cells perform a variety of functions but do not transmit information; one type forms the myelin sheath






44. Affect multiple receptors; highly preferential to which type of receptor they affect






45. Automatic and rapidly acquired reactions - not attributable to reinforcement or conditioning






46. SCN = controls circadian rhythms - located directly above the optic chasm in the anterior portion of the hypothalamus - receives input from the eyes which is why light exposure affects our sleep-wake cycles






47. Cells that integrate information across the retina; rather than sending signals toward the brain - amacrine cells link bipolar cells to other bipolar cells and ganglion cells to other ganglion cells






48. The visual image of the world on the retina






49. First described by Descartes - a combination of antagonistic muscle movements (e.g. those involved in walking)






50. A peptide - also known as OREXIN - produced by neurons whose cell bodies are located in the hypothalamus; their destruction causes narcolepsy