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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. Relays nerve impulses - processes sensory impulses - reflex behavior and contains nerve cell bodies






2. Bunch of dopaminergic neurons starting in the substantia nigra and ending in the neostriatum






3. A single - unfertilized cell created during conception; the combined egg + sperm






4. 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






5. Caudate nucleus and putamen






6. Occurs when an external stimulation - regardless of intensity - will not trigger a new action potential






7. A drug that facilitates the effects of a particular neurotransmitter on the postsynaptic cell






8. An area that combines input from diverse brain regions






9. 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






10. Opening in the iris; dilates and contracts allowing different levels of light in






11. 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






12. Actually are two kinds: monochorionic and dichorionic (blastocyst splis into two before day 4)






13. If a synapse is active at about the same time that a postsynaptic neuron is active - that synapse will be strengthened






14. Causes mesolimbic dopamine hyperactivity; etiology of schizophrenia






15. Bunch of dopaminergic neurons starting in the ventral tegmental area and ending in the nucleus accumbens - amygdala and hippocampus






16. Consummatory stimulus






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






18. 'little net'






19. In the limbic system - is a fiber bundle - connects hippocampus with stuff (including the mammillary bodies of the hypothalamus)






20. Acetylcholine - glutamate - gamma-aminobutyric acid - dopamine - serotonin - norepinephrine - endorphin






21. The maintenance of water balance in the body






22. Occurs intermittently during early stages of slow-wave sleep and REM sleep 3.5-7.5 Hz






23. Is characteristic of indirect antagonist drugs






24. 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






25. Binding of a drug to a receptor site that does not interfere with the binding site for the principal ligand






26. Is found at the base of the brain - underneath the thalamus (**remember hypo-below)






27. Hypothalamic-pituitary-adrenal axis -controls stress response






28. Projects to ventral tegmental area






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






30. Hormone secreted during the night by the pineal body; role in circadian and seasonal rhythms






31. Damage to this are causes clumsiness and loss of balance






32. These two developed the criteria for habituation; basic process is a form of synaptic depression that occurs presyntaptically.






33. Emotional perception and expression (particularly fearful emotions and detection of threat)






34. 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






35. Includes comparative (evolution/genetics/animal behavior/ethology) and behavioral regulation






36. Contains receptors to detect when the body needs food or fluids; the hunger center; lesions lead to aphagia






37. Includes the thalamus and hypothalamus; region of forebrain surrounding the 3rd ventricle






38. Occur in amacrine - bipolar and horizontal cells; govern/encompass the opponent-process level of color vision






39. Decreasing effects of a medication due to repeated administration






40. Irregular electrical activity of 13-30 Hz - state of arousal - attentive






41. Is everything anterior to the central sulcus






42. Bunch of dopaminergic neurons starting in the ventral tegmental area and ending in prefrontal cortex






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






44. Olfactory Nerve - smell






45. Absolute; relative






46. Research indicates that the expressing of negative emotions is associated with increased immune function; inhibiting negative emotions with decreasing immune function






47. Part of a glial cell that wraps around the axon of a neuron - providing insulation that facilitates speed of propagation of action potential






48. Viscous substance between cornea and lens; transparent substance between lens and retina






49. An ovary or teste






50. A patient who had intact intelligence but an inability to learn/remember anything new (severe anterograde amnesia)