brain networks

Question 1

Motor circuit, oculomotor circuit, associative circuits, limbic circuit

Answer 1

large-scale networks, involving several brain regions and characterized by long-distance connections

Question 2

large-scale networks play essential role in

Answer 2

integration of cognitive functions

Those with most attention on them are the Default Mode Network, Central Executive Network and Salience Network

Question 3

Default Mode Network

Answer 3

network that is active when a subject is awake and at rest (not cognitively activated but daydreaming or spontaneous thought)

Question 4

default mode network inhibited by

Answer 4

Inhibited by stimuli that activate exogenous attention

Question 5

Inhibited by stimuli that activate exogenous attention

Answer 5

memory tasks (ie. Active retrieval of memories) and in social behavior

Question 6

principle nodes - default mode network

Answer 6

Posterior cingulate cortex

Medial prefrontal cortex

Angular gyrus

Question 7

default mode network - Includes other brain structures forming

Answer 7

additional “subsystems”

Question 8

default mode network - one of more relevant is the subsystem with the

Answer 8

mesial portions of the temporal lobes (hippocampus, parahippocampal gyrus), which is active in memory tasks

Question 9

Central Executive Network

Answer 9

supports cognitively demanding functions, which include working memory, problem solving, and decision making

Question 10

CEN main nodes are

Answer 10

Dorsolateral prefrontal cortex (DLPFC)

Posterior parietal cortex

Question 11

Salience Network

Answer 11

activated in response to behaviorally relevant stimuli; also plays a role in teh integration of the emotional aspects of experience and in rewards processes

Question 12

Salience Network main nodes

Answer 12

Anterior cingulate cortex

Anterior insula