Hodos NETWORKS & TRACTS

Lesson text is an educational draft awaiting anatomical review.

Fourteen lessons · orient, compare, explain

Lessons

A curriculum of relationships for neurosurgical residents. Each lesson moves from a reference view to a question you can explain.

  1. 01 · Reading the evidence · 4 relationships · 8 minutes

    What the anatomy image can establish

    Use one region to distinguish a surface landmark, an atlas boundary, a reconstruction and a measured functional observation.

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  2. 02 · Reading the evidence · 4 relationships · 8 minutes

    Reading a sparse or incomplete tractogram

    Distinguish visibility, reconstruction and quantitative support through practical display comparisons.

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  3. 03 · Regional anatomy · 10 relationships · 20 minutes

    Central region & descending motor pathways

    Orient the central region, follow the descending corridor and distinguish cortical, capsular and cerebellar contributions to movement.

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  4. 04 · Regional anatomy · 7 relationships · 16 minutes

    Internal capsule and thalamic radiations

    Read the internal capsule through its grey-matter neighbours, compare its limbs and genu, and keep reconstructed pathways separate from individual localisation.

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  5. 05 · Regional anatomy · 5 relationships · 12 minutes

    Frontal aslant tract & speech planning

    Compare lateral and medial frontal anatomy, then use task-specific observations to reason about speech impairment.

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  6. 06 · Regional anatomy · 7 relationships · 16 minutes

    Corpus callosum & the interhemispheric corridor

    Read the corpus callosum as a relationship set, then use its segmental topography to frame medial frontal, deep white matter and visual transfer questions.

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  7. 07 · Regional anatomy · 5 relationships · 12 minutes

    Optic radiation & the temporal stem

    Follow the geniculocalcarine relationship, compare temporal-stem neighbours and reason about a contralateral visual-field deficit.

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  8. 08 · Regional anatomy · 6 relationships · 14 minutes

    Ventral stream & the temporal stem

    Orient the uncinate fasciculus, compare neighbouring ventral pathways and read the temporal stem as a corridor linking anterior temporal, insular and mesial temporal anatomy.

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  9. 09 · Regional anatomy · 5 relationships · 12 minutes

    Insula, central core & interoception

    Orient the buried insular surface and its deep neighbours before considering a proposed interoceptive framework.

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  10. 10 · Regional anatomy · 7 relationships · 16 minutes

    Brainstem & cranial nerve corridors

    Read the brainstem through long tracts, cerebellar peduncles and cranial nerve exits while keeping surface relationships separate from operative instructions.

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  11. 11 · Network lectures · 6 relationships · 18 minutes

    Attention networks · orienting, reorienting & neglect

    Follow dorsal and ventral frontoparietal systems, compare their white matter, and build a network account of a spatial deficit.

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  12. 12 · Network lectures · 7 relationships · 22 minutes

    Language networks · dorsal, ventral & frontal pathways

    Move beyond two cortical centres: compare speech–sound mapping, meaning, visual input and phrase planning across cortical and white-matter relationships.

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  13. 13 · Network lectures · 6 relationships · 18 minutes

    Default mode network · hubs, subsystems & connections

    Orient medial and lateral default-network territories, compare cingulum and medial-temporal relationships, and interpret internal cognition without a “resting brain” shortcut.

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  14. 14 · Network lectures · 6 relationships · 18 minutes

    Salience network · insula, cingulate & switching

    Connect frontoinsular and cingulate anatomy to salience and control, while separating overlapping network definitions and their clinical questions.

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