TB8 B&B Lecture 2; Structure and function of the hippocampus

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  • Created by: mint75
  • Created on: 24-04-16 19:35

1. Which of these characterises cognitive maps re; coding in the hippocampus?

  • The hippocampus provides a internal map coding for spatial relations between objects in the environment
  • Relational frameworks can be disassociated from associations. e.g can learn which cup was rewarded with food, but couldnt infer the BEST cup to search if one was rewarded more than another
  • A unique role of the hippocampus in mental time travel, recollection involves relations between items and contexts v.s familiarity = declarative memory
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2. How do NMDA receptors facilitate LTP?

  • NMDA expel glutamate from the channel, creating a greater influx of NA and CA and a greater action potential
  • NMDA expel MG2+ from the channel, creating a greater influx of NA and CA and a lower action potential
  • NMDA expel MG2+ from the channel, creating a greater influx of NA and CA and a greater action potential
  • NMDA expel MG2+ from the channel, creating a greater influx of glutamate and a greater action potential

3. What is the LTP feature of associativity?

  • Weak AND strong active pathways during the memory are enhanced and all aspects of the memory are bound together
  • Only strong active pathways during the memory are enhanced and all aspects of the memory are bound together
  • Only weak active pathways during the memory are enhanced and all aspects of the memory are bound together

4. In a study of transgenic mice, what was impaired when NMDA receptors on CA1 were knocked out?

  • Spatial learning
  • Classical learning
  • Semantic memory
  • Semantic memory and position encoding

5. Which are the three areas DIRECTLY following the hippocampus?

  • Entorhinal cortex, perirhinal cortex, parahippocampal cortex
  • Rhinal sulcus, Lateral ventricle, entorhinal cortex
  • Entorhinal cortex, fornix, parahippocampal cortex
  • Fornix, parahippocampal cortex, STS

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