1. Describe each of these methods for recording the electrical activity of the brain through invasive electrodes:

1. intracellular unit recording,
2. extracellular unit recording,
3. multiple unit recording, and
4. invasive EEG recording

2. Describe and compare these three techniques commonly used for obtaining information about the living human brain: fMRI, EEG and CT.

3. Which structures comprise the limbic system? What are the motivated behaviors that the limbic system is responsible for regulating?

4. Define the term 'membrane potential'. Name and describe the four factors that balance together to maintain the neuron's resting membrane potential at -70 mV. State how each factor separately affects the charge distribution across the neuronal membrane.

5. Define the term 'antagonist'. Give one example of an antagonistic drug and describe the mechanism by which it works.