Week 2

Question 1

The prefrontal cortex is innervated by which thalamic area?

Answer 1

Mediodorsal nucleus

Question 2

First layer of the neocortex contains

Answer 2

connections - synapses, dendrites but no cell bodies

called aneural/neuropil

Question 3

All of the input to the cortex comes via the

Answer 3

thalamus

Question 4

Two main types of neurons found in the cortex

Answer 4

Stellate and pyramidal

Question 5

Inhibitory neurons are all which type of neuron

Answer 5

interneuron/stellate

Question 6

Diameter of a minicolumn

Answer 6

20-40 μm wide

Question 7

A minicolumn contains how many cells?

Answer 7

80-120 (neurones)

Question 8

Macroscale methods utilise

Answer 8

MRI tractography

Question 9

Mesoscale refers to

Answer 9

Approximately what you can see with a conventional light microscope

Question 10

MRI tractography basis of action

Answer 10

MRI tractography utilises the property of water movement in fibre tracts; water movement is less restricted in the direction of the fibre tracts compared to its movement perpendicular to them

Question 11

Pros of MRI tractography

Answer 11

The non-invasive property of MRI means that repeated scans of individuals over time can document the developmental changes in brain connectivity throughout development and ageing