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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. When a neuron reaches its excitation threshold - the neuron will produce an action potential of FIXED amplitude regardless of the magnitude of the stimulation






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






3. Auditory receptor cells in the cochlea that turn sound vibrations -> neural impulses






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






5. 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






6. Produces acetylcholine. One of the earliest sites of cell death in Alzheimer'S Disease (neurological disorder associated with a deficiency in acetylcholine) is in the basal forebrain






7. A drug that opposes/inhibits the effects of a particular neurotransmitter on the postsynaptic cell






8. Are found in the diencephalon






9. 'Roof'






10. Is used to treat Parkinson'S Disease






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






12. Controls sexual activity






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






14. Abducens Nerve - moves eye






15. 3 layers of tissues that cover and protect CNS; dura mater (outermost layer) - arachnoid mater (middle layer) - Pia mater (innermost layer)






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






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






18. Skin senses that register the sensations of pressure - warmth and cold






19. Has neurons for reflexes






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






21. Involved in the effects of odors/pheromones in reproductive behavior - a nucleus that receives olfactory information from the olfactory bulb and accessory olfactory bulb






22. Regulates body temperature






23. The visual image of the world on the retina






24. Referred to as the satiety center; lesions lead to obesity and hyperphagia






25. Has a calcium-related role and produces the hormone parathyroid






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






27. Smooth electrical activity of 8-12 Hz -medium frequency - awake but in a restful state (^ eyes closed but conscious)






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






29. Vagus Nerve - heart rate and digestion






30. 'covering'






31. Most pervasive excitatory neurotransmitter in the brain






32. Is found in the frontal lobe (which is divided into the prefrontal lobes and ___ ___)






33. 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






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






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






36. Sign






37. 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






38. Those biological considerations which are IMMEDIATE;Behavioral/Cognitive Neuroscience (i.e. how the nervous and endocrine systems influence behaviors/thoughts)






39. A chemical released by one animal that affects the behavior or physiology of another animal; usually smelled or tasted






40. Related to plasticity - the term Lashley used to describe different parts of the cortex being interchangeable in their roles in learning






41. 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






42. Is found between the arachnoid mater and Pia mater; this is where CSF cushions (and bathes) the brain - giving it the floating quality (and keeping it moist/circulating)






43. Consummatory stimuli - sign stimuli - supernormal stimuli - releaser






44. An ovary or teste






45. Trigerminal Nerve - face sensation






46. Controls sexual activity; lesions inhibit sexual behavior; stimulation increases aggressive sexual behavior






47. 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






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






49. Holds the lens in place






50. Contains delta activity - stages III and IV