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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. Oculomotor Nerve - moves eye pupil






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. 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






4. The earlier onset of puberty seen in female animals that are housed with males caused by a pheromone in the male'S urine and first observed in mice






5. 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






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






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






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






9. Produce drowsiness and sleepiness






10. Bunch of dopaminergic neurons starting in the substantia nigra and ending in the neostriatum






11. Sign






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






13. In the limbic system - is a fiber bundle - connects hippocampus with stuff (including the mammillary bodies of the hypothalamus)






14. Found in the ventricles and spinal canal






15. Are found in the diencephalon






16. 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






17. Occurs during the deepest stages of slow-wave sleep; regular - synchronous electrical activity of less than 4 Hz






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






19. An ovary or teste






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






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






22. Glossopharyngeal Nerve - taste swallow






23. Self-dissolving






24. Associated with (spoken) language reception/comprehension - memory processing - and emotional control; contains Wernicke'S area and the auditory cortex






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






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






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






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

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29. Optic Nerve - sight






30. 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






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






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






33. Made from within - natural






34. Causes mesolimbic dopamine hyperactivity; etiology of schizophrenia






35. Occurs when their is damage to the septal area and results in unchecked aggressive and vicious behavior






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






37. Most pervasive excitatory neurotransmitter in the brain






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






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






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






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






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






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






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






45. hormone - secreted by the pituitary gland -signals the adrenal gland to secrete corticosteroid hormones -ACTH is a critical component of the HPA Axis that controls the stress response






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






47. Midbrain - medulla and the pons






48. Hypoglossal Nerve - moves the tongue






49. 'covering'






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