Invasive Neuroohysiology

Question 1

Which of these modalities allows us to record single unit activity?

1. MEG
2. Intraoperative microelectrodes
3. ECoG
4. LFPs

Answer 1

2. Intraoperative microelectrodes

Question 2

Why is referencing important when recording brain signals?

1. To minimise the contribution of ground
   related noise to the recorded signals
2. To baseline brain activity in one region against that seen in another
3. To remove features of signals associated with diseases
4. To enhance features of signals associated with diseases

Answer 2

1. To minimise the contribution of ground
   related noise to the recorded signals

Question 3

What is the primary benefit of recording from multiple brain sites?

1. To have an additional brain site for referencing
2. To record brain activity uncontaminated by the disease
3. To record brain activity implicated in the wider network associated with the disease

Answer 3

3. To record brain activity implicated in the wider network associated with the disease