43: Learning And Memory

Question 1

How do short term memory structures connect to the neocortex and amygdala?

Answer 1

Via the nucleus basalis of Meynert

Question 2

What type of nts does the nucleus basalis of Meynert use? What disease process is it indicated in?

Answer 2

Cholinergic; Alzheimers

Question 3

Where is spatial memory stored?

Answer 3

Hippocampus

Question 4

Place cells

Answer 4

Special pyramidal cells in CA1

Question 5

When do place cells fire?

Answer 5

When in specific places, especially if you got a reward there

Question 6

Three cell types that send info to place cells

Answer 6

1. Grid cells
2. Head direction cells
3. Border neurons

Question 7

Grid cells

Answer 7

Create a grid map of place you are in (triangular or hexagonal

Question 8

Location in brain of grid cells

Answer 8

Entorhinal cortex

Question 9

Border neurons

Answer 9

Fire when near a border or wall

Question 10

Head direction cells

Answer 10

Tell you what direction your head was pointing to see an area

Question 11

Basis of production of memory and learning

Answer 11

Plasticity

Question 12

Two ways to alter plasticity

Answer 12

Change synaptic function + change physical structure of neurons

Question 13

Three ways to change structure of neurons

Answer 13

1. Gain/lose synapses
2. Structural changes in dendrites
3. Structural changes in somas

Question 14

Two ways to change synapstic functioning

Answer 14

1. Post-tetanic potentiation

2. Long-term potentiation

Question 15

What nts can be used in long-term potentiation?

Answer 15

The model is based on EAA, but can be seen with other nts too