Enum: EdgeDirectionality

Whether a connectivity edge is genuinely directed. Only directed models such as DCM and Granger causality qualify; a seed-to-voxel PPI or correlation is undirected, and its sign travels with the edge rather than implying a direction.

The one vocabulary nothing reads off the page: ConnectivityEdge.directionality is derived from ConnectivityDetails.connectivity_method, since the method decides it and no wording can override it.

URI: neurostudy:EdgeDirectionality

Permissible Values

Value	Meaning	Description
directed	None	The method supports a claim about which region influences which
undirected	None	The method gives a symmetric relationship only, whatever the wording of the p...

Slots

Name	Description
directionality	Whether this edge is genuinely directed

In Subsets

• mvp

Identifier and Mapping Information

Schema Source

• from schema: https://neurostuff.org/schemas/neuroimaging-study-storage

LinkML Source

name: EdgeDirectionality
description: 'Whether a connectivity edge is genuinely directed. Only directed models
  such as DCM and Granger causality qualify; a seed-to-voxel PPI or correlation is
  undirected, and its sign travels with the edge rather than implying a direction.

  The one vocabulary nothing reads off the page: `ConnectivityEdge.directionality`
  is derived from `ConnectivityDetails.connectivity_method`, since the method decides
  it and no wording can override it.'
in_subset:
- mvp
from_schema: https://neurostuff.org/schemas/neuroimaging-study-storage
rank: 1000
permissible_values:
  directed:
    text: directed
    description: The method supports a claim about which region influences which.
    in_subset:
    - mvp
  undirected:
    text: undirected
    description: The method gives a symmetric relationship only, whatever the wording
      of the paper.
    in_subset:
    - mvp