Test your basic knowledge |

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. Includes the tectum and tegmentum






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






3. Areas in the brain receiving incoming sensory information or sending out motor-impulse commands






4. Found in the ventricles and spinal canal






5. Activates one of 5 types of receptors in the CNS - cognition - motor activity - reward - muscle tone - sleep - mood - attention - learning -higher level effects of dopamine = D2






6. Important to motor system






7. States that performance is worst at extremely low or extremely high levels of arousal and optimally at an intermediate level






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






9. 'little net'






10. Is characteristic of indirect antagonists






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






12. Occurs when a neuron is hyperpolarized and characterized by sufficient strength of stimulation triggering a new action potential






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






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






15. Causes mesolimbic dopamine hyperactivity; etiology of schizophrenia






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






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






18. Regulates body temperature






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






20. Decreasing effects of a medication due to repeated administration






21. Expression of traits






22. 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






23. Midbrain - medulla and the pons






24. Physiologically different from the other four stages of sleep (i.e. the similarity between the summed electrical activity of neurons measured on the scalp (EEG) during REM sleep and during wakefulness






25. Sleep tests (i.e. to diagnosis sleep apnea)






26. Serotonin = 5-HT -regulation of mood - anxiety - aggression - sleep - appetite - sexuality -rostral and caudal raphe nuclei






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






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






29. Motor neurons found in the Somatic (voluntary) and Autonomic (involuntary) Nervous Systems






30. Refers to both the somatosensory cortex and motor cortex (they are a little different but very interrelated)






31. An ovary or teste






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






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






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






35. 'little brain'






36. Are direct antagonists; binds with a receptor but does not activate it - but prevents the natural ligand from binding with the receptor






37. Include tolerance (possible withdrawal) and sensitivity






38. Begins where spinal cord ends - 3 structures: the medulla - the pons - the cerebellum






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






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






41. One of the primary noradrenergic nuclei whose ascending axons project to frontal cortex - thalamus - hypothalamus - limbic system






42. Occurs during the deepest stages of slow-wave sleep; regular - synchronous electrical activity of less than 4 Hz






43. Accessory Nerve - moves the head






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






45. Self-dissolving






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. The visual image of the world on the retina






48. Produce drowsiness and sleepiness






49. Is regulated by the hypothalamus






50. Pass the easiest through the blood-brain barrier