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






2. 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)






3. Is a receptor blocker; binds with a receptor but does not activate it - actually prevents the natural ligand from binding with the receptor






4. Accessory Nerve - moves the head






5. If head is rotated - eye movements occur in the same direction






6. Is everything anterior to the central sulcus






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






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






10. Vestibulocochlear Nerve - hearing and balance






11. 3 layers of tissues that cover and protect CNS; dura mater (outermost layer) - arachnoid mater (middle layer) - Pia mater (innermost layer)






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






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






14. Trigerminal Nerve - face sensation






15. Controls sexual activity






16. Colored part of the eye






17. Phantom limb pain - hypnotic induction and the success rate of placebo treatments






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






19. The synchronization of the menstrual or estrous cycles of a group of females - which occurs only in the presence of a pheromone in a male'S urine






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






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






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






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






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






25. Completely disactivates the prefrontal cortex (PFC); due to high levels of norepinephrine (NE)






26. Those biological considerations which are DISTANT; Evolutionary Psychology - Comparative Psychology - Ethology






27. Has neurons for reflexes






28. Vagus Nerve - heart rate and digestion






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






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






31. 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






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






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






34. Hormone secreted during the night by the pineal body; role in circadian and seasonal rhythms






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






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






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






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






39. There are 12 add more






40. Junction of the sagittal and coronal sutures of the skull; often used as a reference point for stereotaxic brain surgery






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






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






43. Occurs for body temperature - blood glucose levels - blood concentration - etc -hormones are important






44. 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






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






46. Decreasing effects of a medication due to repeated administration






47. Consummatory stimulus






48. Are direct antagonists; binds with a receptor but does not activate it - but prevents the natural ligand from binding with the receptor






49. 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






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