Network Neuroscience

Question 1

Review how the brain makes accurate goal-directed movements of the body, and explain the role of the posterior parietal cortex in this process

Question 2

Describe three major large-scale brain networks, their major anatomical substrates, and hypothesized roles in cognition

Answer 2

default-mode network
central-executive network
salience network

Question 3

Differentiate between structural connectivity and functional connectivity in brain networks, explain “effective connectivity,” and discuss how global access of information in the cerebral cortex is thought to underscore consciousness

Answer 3

structural
functional 
effective connectivity 
subliminal
preconscious 
conscious

Question 4

Explain what a seizure is in general terms, and distinguish between focal aware, focal impaired, and secondarily generalized seizure classifications

Answer 4

hyperexcitability of populations of neurons
usually large pyramidal neurons

focal aware
focal impaired
secondarily generalized

Question 5

Explain how focal impaired seizures are thought to disrupt consciousness (network inhibition hypothesis)

Question 6

Explain what a migraine is and how network coordination helps explain the pan-sensory amplifications associated with migraine disorder

Answer 6

a recurring type of headache characterized by elevated sensitivity to multiple sensory modalities (called “pan-sensory gain”)