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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.
  • 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. 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






2. Tremors - rigidity of limbs - poor balance and difficulty initiating movements

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






4. Important to motor system






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






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






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






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






9. The visual image of the world on the retina






10. Located in the midbrain - a group of neurons which produce dopamine and degenerate in Parkinson'S Disease






11. learning and memory -neurotransmitter released at the neuromuscular junction of skeletal muscle axons to excite the muscle to contract






12. Abducens Nerve - moves eye






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






14. 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






15. Adenine - Guanine - Thymine - Cytosine






16. Is found in PTSD/CPTSD patients and persons exposed to chronic stress






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






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






19. Functions as both a hormone and a neurotransmitter in the brain






20. The midbrain; a region that surrounds the cerebral aqueduct; includes tectum and the tegmentum






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






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






23. Produce drowsiness and sleepiness






24. Are postsynaptic potentials that are found in the dendrites and vary in their intensity






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






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






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






28. There are 12 add more






29. Precursor to GABA (the most inhibitory/regulatory/pervasive neurotransmitter)






30. Absolute; relative






31. Occurs under drug-induced conditions - including excessive use of marijuana; high body temperature - autonomic instability and muscle rigidity






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






33. Glandular system control center - produces the hormones oxytocin and antidiuretic; functions in both the nervous system and endocrine sytem - In the forebrain - regulates motivated behaviors (eating - drinking - aggression - sexual behavior






34. 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






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






36. Holds the lens in place






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






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






39. Located in the forebrain - basal ganglia -> movement -speech and other complex behaviors






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






41. Is characteristic of indirect antagonists






42. Synchronized EEG activity during its deeper stages






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






44. Supernormal






45. Is regulated by the hypothalamus






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






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






48. 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)






49. All have similar molecular structure - so many 'dirty' medications






50. ...







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