Nodes (branched structure)

 

Use to compile the location of nodes on processes (dendrites or axons).

Analysis results

ClosedTree

Each tree selected for the analysis is assigned a unique number starting at 1.

ClosedNode

Describes the node position based on its root segment. The root segment is the segment closest to the origin of the process; the other segments are referred to as daughter segments.

R is the root segment, that is, the segment from the origin to the first node.

In a bifurcating tree, the daughter segments at the first node are R-1 and R-2.

  • If R-1 ends in a node, the 2 daughter segments are R-1-1 and R-1-2.
  • If R-2 ends in a node, the 2 daughter segments are R-2-1 and R-2-2.
ClosedDistance Along Process

Length of the path from the origin to the node.

ClosedStraight Line Distance

Shortest distance from the origin to the node.

ClosedTortuosity

Tortuosity = [Distance along process] / [Straight line distance]

  • The smallest tortuosity possible is 1—This is a straight path.
  • Tortuosity increases as the segment assumes a more complex path to reach its destination.
  • Tortuosity allows segments of different lengths to be compared in terms of the complexity of the paths they take.
ClosedBase coordinates

(X,Y,Z) coordinates of the node