Time, place and space

Time, place and space

1. History

   • Hermann Ebbinghaus
     • Forgetting curve: shows how information is lost overtime if no attempt to recall has been made. Some bits may remain in your memory.
   • H.M Patient
     • 25% of the hippocampus remained- not 100% amnesia
   • Loni Johnson
     • Entire amnesia as both hippocompul were destroyed. Could not remember or learn memories

2. Cognitive Map

   • Mental representation of ones physical environment

3. Hippocampus

   • How information flows through
     • From distal to proximal: Dentate gyrus- ammonia's horn- subiculum- entorhinal cortex. Info comes from entorhinal cortex and goes around to all and back (like a thumb)

4. Place Cells

   • When a rat is in a specific spot, it fires these cells a lot
   • Intergrate spacial and declarative memories
   • You dont get replacement of place cells if you dont have NMDA receptors

5. Grid Cells

   • Respond to distance covered (every 5m)
     • Every time you remember an environment- you remember a pattern of grid cells.

6. Border Cells

   • Respond when close to an edge

7. Head direction Cells

   • Respond to the way your head is facing

8. Speed Cells

   • Respond to how quickly you're travelling