Major Fiber Tracts

List of white matter tracts built-in to pyAFQ

Tract Name	Color	Reference	Set	Example
Left Anterior Thalamic	Blue	[Yeatman et al., 2012]	Default	Getting started with pyAFQ - GroupAFQ
Right Anterior Thalamic	Light Blue
Left Cingulum Cingulate	Green
Right Cingulum Cingulate	Light Green
Left Corticospinal	Orange
Right Corticospinal	Light Orange
Left Inferior Fronto-occipital	Brown
Right Inferior Fronto-occipital	Light Brown
Left Inferior Longitudinal	Pink
Right Inferior Longitudinal	Light Pink
Left Superior Longitudinal	Grey
Right Superior Longitudinal	Light Grey
Left Arcuate	Teal
Right Arcuate	Light Teal
Left Uncinate	Yellow
Right Uncinate	Light Yellow
Left Posterior Arcuate	Red
Right Posterior Arcuate	Light Red
Left Vertical Occipital	Gold
Right Vertical Occipital	Light Gold
Callosum Anterior Frontal	Dark Green	[Dougherty et al., 2007]		Callosal bundles using AFQ API
Callosum Motor	Sky Blue
Callosum Occipital	Purple
Callosum Orbital	Dark Purple
Callosum Posterior Parietal	Rose
Callosum Superior Frontal	Sea Green
Callosum Superior Parietal	Pale Yellow
Callosum Temporal	Dark Red
Left Inferior Cerebellar Peduncle		[Jossinger et al., 2022]	Cerebellar	Delineating cerebellar peduncles
Right Inferior Cerebellar Peduncle
Left Middle Cerebellar Peduncle
Right Middle Cerebellar Peduncle
Left Superior Cerebellar Peduncle
Right Superior Cerebellar Peduncle
Left Acoustic Radiation		[Tzourio-Mazoyer et al., 2002]	Acoustic Radiations	Acoustic Radiations Example
Right Acoustic Radiation
Left Optic Radiation		[Caffarra et al., 2021]	Optic Radiations	Optic Radiations Example
Right Optic Radiation
Left Superior Longitudinal I		[Sagi et al., 2024]	Superior Longitudinal Sub-divisions	SLF 1/2/3 Example
Right Superior Longitudinal I
Left Superior Longitudinal II
Right Superior Longitudinal II
Left Superior Longitudinal III
Right Superior Longitudinal III
Left Optic Tract		[Kruper and Rokem, 2023]	Posterior Retinogeniculate Visual Pathway
Right Optic Tract
Left Posterior Optic Nerve
Right Posterior Optic Nerve

Custom definitions can also be provided to pyAFQ (see Defining Custom Bundle Dictionaries). The Reference column shows the paper used to create the definitions, and the Set column shows how these are grouped in the software. However, these groups can also be combined and modified.