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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. Attaches to a binding site on receptor and interferes with the action of the receptor without affecting the binding site for the principal ligand (noncompetitive binding)






2. Ventral part of midbrain - includes periaqueductal gray matter - reticular formation - red nucleus - and substantia nigra






3. Found that developmental changes occurring in puberty make the brain more susceptible to the psychotic effects of NDMA antagonist and therefore also related to the emergence of symptoms of schizophrenia






4. EEG desynchrony (rapid -irregular waves) - lack of muscle tonus - rapid eye movements - penile erection/vaginal secretion - dreams; EEG synchrony (slow waves) - moderate muscle tonus - slow/absent eye movements - lack of genital activity






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






6. Sudden - sharp waveforms found only in Stage II of sleep; spontaneously occur about one per minute but also to unexpected noises






7. 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






8. Found in the hypothalamus - function to maintain the water balance in the body






9. Somewhat excitatory - also involved in synaptic plasticity - learning and short-term memory






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






11. Consummatory stimuli - sign stimuli - supernormal stimuli - releaser






12. The viscous substance between cornea and lens






13. Caudate nucleus and putamen






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






15. An ovary or teste






16. Oculomotor Nerve - moves eye pupil






17. The increase in REM sleep seen after a period of REM sleep deprivation






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






19. The female reproductive cycle of most primates - including humans; recognized by growth of the lining of the uterus - ovulation - development of a corpus luteum - and (if pregnancy does not occur) menstration






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






21. Affect sex characteristics/development and produce estrogen/progesterone (in females - ovaries) and testosterone (in male - testes)






22. 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






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






24. Extensive research in dreams - said BAH to Freud; proposed the activation-synthesis hypothesis (dreams are nothing more than the product of random electrical impulses)






25. These two brain structures contain entry/exits for most of the cranial nerves and control vital functions (heart rate -digestion - respiration)






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






27. Include the Nigrostriatal system - Mesolimbic system and Mesocortical system






28. Lesions to this brain structure that is crucial to memory will produce anterograde amnesia






29. Short bursts of waves 12-14 Hz that occur 2-5 times a minute during stages 1-4 of sleep; most characteristic of sleep Stage II; some believe sleep spindles are involved in keeping one asleep (decline in older people)






30. Most pervasive excitatory neurotransmitter in the brain






31. The restorative effect of introducing a new female sex partner to a male that has apparently become 'exhausted' by sexual activity






32. Controls circadian rhythms - produces melatonin (daylight signals go to the eyes to the hypothalamus to the pineal gland)






33. Are found in the diencephalon






34. If head is rotated - eye movements occur in the same direction






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






36. Pass the easiest through the blood-brain barrier






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






38. 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






39. 3 layers of tissues that cover and protect CNS; dura mater (outermost layer) - arachnoid mater (middle layer) - Pia mater (innermost layer)






40. Can occur after long term antipsychotic tx (opposite of Parkinson'S?); oversensitivity to dopamine






41. Produce drowsiness and sleepiness






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






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






44. Is an oversensitivity to dopamine (D2)






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






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






47. Include indolamines (serotonin) and catecholamines (dopamine - norepinephrine and epinephrine)






48. Pleasure center of the brain; discovered by Olds & Milner






49. Similarity of alleles for a trait in an organism (i.e. heterozygous or homozygous)






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