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Gre Psychology: Experimental/natural Science Biology

Subjects : gre, psychology
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. 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






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






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






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






6. Found in the ventricles and spinal canal






7. Is a loss of dopamine cells in the substantia nigra of the basal ganglia; these cells are usually dark (nigra) but in Parkinson'S - the substantia nigra appears white due to cell death

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






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






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






11. 'little brain'






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






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






14. Moving forward






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






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






17. Precursor to the catecholamine neurotransmitters (DA + NE)






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






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






20. 'little net'






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






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






23. Supernormal






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






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






26. In the tegmentum (ventral part of midbrain); its neurons connect to caudate nucleus + putamen (in basal ganglia)






27. Cumulative effects of repeated stimulation from a presynaptic neuron






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






29. Maintains balance/posture and coordinates body movements






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






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






32. Lens changes initiated by the ciliary muscles to change the shape of the lens in order to focus image on the retina






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






34. Receive incoming sensory information or send out motor impulse commands






35. Produce drowsiness and sleepiness






36. 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






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






38. The Lee-Boot effect - Whitten effect - Vandenbergh effect - and the Bruce effect; all mediated by the VNO






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






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






41. An ovary or teste






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






43. Is characteristic of indirect antagonist drugs






44. Binding of drug to receptor site that doesn'T interfere with the principal ligand






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






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






47. Decreasing effects of a medication due to repeated administration






48. A behavior that has different forms or occurs with different probabilities or under different circumstances in males than females






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






50. Include tolerance (possible withdrawal) and sensitivity







Sorry!:) No result found.

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