TABLE 2.

Explanation of various topological features.

Items	Abbreviation	Explanation
Global efficiency	Eglob	The Eglob measures the global efficiency of the parallel information transfer in the network.
Local efficiency	Eloc	The Eloc shows how efficient the communication is among the first neighbors of the node when it is removed.
Shortest path length	Lp	The Lp of a network quantifies the ability for information to propagate in parallel.
Clustering coefficient	Cp	The Cp of a network indicates the extent of the local interconnectivity or cliquishness in a network.
Nodal betweenness	Bnod	Bnod of a node captures the influence of the node over information flow between all the other nodes in the network.
Nodal degree	Knodal	Knodal is a simple measurement of connectivity of a node with the rest of nodes in a network.
Nodal efficiency	Enodal	Enodal measures the ability of information propagation between a given node with the rest of nodes in a network.
Nodal path length	NLp	The NLp of a network quantifies the ability for information to propagate in parallel.
Small worldness	–	Small worldness has a higher local interconnectivity but also has an approximately equivalent shortest path length compared with random networks.
Rich-club organization	–	Rich club organization is a property common to complex networks and is hypothesized to be a basis for efficient global information transfer and complex neurological function in the brain, which defined as the density of connections between rich-club nodes.