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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. Optic Nerve - sight






2. Strip of limbic cortex lying along the lateral walls of the groove separating the cerebral hemispheres - just above the corpus callosum






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






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






5. 'little brain'






6. Suggests that dreams are nothing more than the product of random electrical impulses (Hobson & McCarley)






7. Occur in amacrine - bipolar and horizontal cells; govern/encompass the opponent-process level of color vision






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






9. Moving forward






10. Are found in the diencephalon






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






12. Is a peptide neurotransmitter and a natural painkiller and antianxiety






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






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






15. An axon of a neuron in one region of the brain whose terminals form synapses with neurons in another region






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






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






18. Is found at the base of the brain - underneath the thalamus (**remember hypo-below)






19. Includes the tectum and tegmentum






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






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






22. Caudate nucleus and putamen






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






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






25. AKA the striate cortex - located at the back of the brain - and contains the visual cortex






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






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






28. Symptom of narcolepsy - paralysis occurring just before a person falls alseep






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






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






31. 'little net'






32. An ovary or teste






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






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






35. 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






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






37. Increases heartrate - dilates/constricts blood vessels - increases blood sugar - produces hormones epinephrine and norepinephrine






38. An inherited form of defective color vision in which hues with short wavelengths are confused (blue cone dysfunction); see world in green and red






39. 'Roof'






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






41. 3 layers of tissues that cover and protect CNS; dura mater (outermost layer) - arachnoid mater (middle layer) - Pia mater (innermost layer)






42. Vision: protrusions on top of the midbrain; part of visual system






43. Lesions to this brain structure that is crucial to memory will produce anterograde amnesia






44. 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






45. Vestibulocochlear Nerve - hearing and balance






46. Is characteristic of indirect antagonists






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






48. These two brain structures contain entry/exits for most of the cranial nerves and control vital functions (heart rate -digestion - respiration)






49. Extensive research in dreams - said BAH to Freud; proposed the activation-synthesis hypothesis (dreams are nothing more than the product of random electrical impulses)






50. Is used to treat Parkinson'S Disease







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