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






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






3. Thymoleptics = relieves mania of bipolar disorder (lithium carbonate - valproic acid - carbamazepine)






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






5. Some brain communications are with the same side of the body






6. Combines input from diverse brain regions; receives sensory information/sends motor impulses






7. 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






8. Choroid Plexus > Ventricle 1 & 2 > Foramen of Monro > Ventricle 3 > Aqueduct of Sylvius > Ventricle 4 > Foramen of Magendie lateral aperture) > Foramina of Luschka (lateral aperture) - subarachnoid space (outside of brain) and spinal cord > re-absorp






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






10. A large network of neural tissue located in the central region of the brain stem - from the medulla to the diencephalon






11. Result in either tolerance (and possible withdrawal symptoms) or sensitization (increase effectiveness of the drug)






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. Stimulates bone growth and produces the hormones: somatotropin - prolactin - thyroid-stimulating - adrenocorticotropic (ACTH) - follicle-stimulating - luteinnizing






14. The female reproductive cycle of mammals other than primates






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






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






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






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






19. 'little brain'






20. The viscous substance between cornea and lens






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






22. Measure changes in the electrical resistance of the skin (sweat gland activity)






23. Most pervasive excitatory neurotransmitter in the brain






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






25. Neurotransmitter in CNS - hormone in peripheral vascular system; deficiencies > depression - ADD; noradrenergic nuclei = locus coeruleus






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






27. Cumulative effects of repeated stimulation from a presynaptic neuron






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






29. 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






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






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






32. Convoluted of hills (gyri) and valleys (sulci) divided into two hemispheres (left and right) which are further divided into four lobes (occipital - parietal - temporal and frontal)






33. Sits just above the hindbrain - contains cranial nerves - parts of the reticular formation -important relay stations for sensory information and the substantia nigra






34. There are 12 add more






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






36. 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






37. Is used as an anaesthetic for children and animals but causes psychosis in adults






38. Readiness with which molecules/drugs/medications join together; varies widely from medication to medication






39. Moving forward






40. Made from within - natural






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






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






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






44. 1. Stage I (non-REM sleep) 2. Stage II (non-REM sleep 3. Stage III (non-REM sleep - slow-wave sleep) 4. Stage IV (non-REM sleep - slow-wave sleep) 5. Rapid Eye Movement Sleep (REM sleep) ~takes about 90 minutes for one full sleep cycle






45. Attaches to the binding site on a receptor and interferes with the receptor'S action - but NOT by interfering with the principal ligand'S binding site (noncompetitive binding)






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






47. 'little net'






48. Include tolerance (possible withdrawal) and sensitivity






49. Maintains balance/posture and coordinates body movements






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