15- Memory

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Author:
carolinc
ID:
83214
Filename:
15- Memory
Updated:
2011-05-08 15:51:48
Tags:
anterograde retrograde
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Description:
what does memory entail?
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  1. What are the 2 types of memory?
    Retrograde and Anterograde
  2. What are the subcategories of Anterograde memory?
    Short Term Memory(STM) and Long Term Memory (LTM)
  3. Where does STM (working memory) occur?
    Prefrontal Cortex
  4. Where does LTM occur?
    Hippocampus
  5. What was H.M unable to do after his surgery?
    unable to learn new info--> anterograde memory
  6. What kind of surgery did patient H.M have?
    amygdala-hippocampectomy
  7. T/F: Patient H.M had an intact STM (where PFC was intact)
    True
  8. T/F: Patient H.M was unable to learn new procedural skills.
    F. He was because his basal ganglia was intact
  9. T/F: Patient HM has no change in his intelligence, language, perceptual abilities, NOR personality
    True
  10. What were some cognitive neuroscience lessons learned from H.M?
    • STM and LTM supported by distinct neural systems.
    • Memories are not stored in hippocampus, but distributed throughout brain
  11. Name the parts of the brain in the papez circuit
    Hippocampus--(fornix)-> mamillary bodies-->anterior nucleus(thalamus)-->cinculate gyrus.
  12. T/F: the cortext to hippocampus connection are not bi-directional
    false, they ARE
  13. What are some clinical features of Transient Global Amnesia?
    • Acute onset of anterograde amnesia
    • no retrograde
    • lasts 2-12 hours, patient cannot learn new info between then
    • occur upon stressful situations
    • MAY be transient ischemic attack, seizure, migrane
  14. What are symptoms of herpes simplex?
    Fever and Confusion
  15. If a patient has Wernicke-Korsakoff syndrome, what part of papez circuit is damaged?
    mamillary bodies and dorsomedial nucleus of thalamus
  16. What is Wernicke-Korsakoff Syndrome due to and how long does it last?
    • Thiamine (B1 deficience)
    • lasts up to 6 weeks
  17. In chronic state of Wernicke-Korsakoff symdrom, do gait eye movements return to normal? What persists though?
    yes, but amnesia persists
  18. Wernicke-Korsakoff syndrom occurs in people with...
    poor nutrition and who are alcoholics
  19. is WK syndrome correctable?
    yes, but if not done immediately, damage can occur
  20. If the mamillary body is swollen, what kind of WK syndrome does a patient have?
    Acute
  21. If the mamillary body is shrunken, what kind of WK syndrom does a patient have?
    Chronic Korsakoff
  22. What is a cuase for Thalamic Amnesia?
    Stroke
  23. What does the parahippocampus help with?
    Spatial memory
  24. What kind of amnesia arises when there is damage in the paraphippocampal gyrus?
    Topographical Amnesia
  25. What are the 2 types of LTM?
    Declarative(explicit) and Procedural (implicit)
  26. What are the 2 types of declaritive(explicit) memory?
    episodic and semantic
  27. What is involved in procedural memory?
    skills, priming, and conditioning
  28. If a patient has parkinson's disease, what is this person lacking?
    dopamine in the substantia nigra
  29. Huntington's disease arises from atrophy to what part of the brain?
    caudate
  30. Name the parts of the Nigrostriatal pathway?
    Substantia Nigra (produces dopamine)-->Caudate/putament
  31. If the caudate is missing, what kind of movment would a patient have?
    hyperkinetic, because there's excess dopamine
  32. What is confabulation and how can it be tested?
    need to be confused and experience anterograde amnesia.
  33. The papez circuit plays a major role in what type of memory?
    LTM
  34. if a patient has a stroke and glioma in the thalamus (anterior nucleus), what is the result?
    Thalamic amnesia
  35. If the basal ganglia doesn't get any dopamine, what kind of memory porblems would the patient have?
    implicit memory problems

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