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. 2016 Jun 2;56(11):674–686. doi: 10.2176/nmc.ra.2016-0069

Table 1.

Subcortical tracts, mapping tasks, and symptoms induced by the direct electrical stimulation

Subcortical tracts Tasks Symptoms*)
Arcuate fascicle

  • Picture naming

  • Word repetition

  • Phonemic paraphasia24)

  • Repetition disturbance26)

IFOF

  • Picture naming

  • PPTT

  • Semantic paraphasia44,45)

Fronto-striatal tract

  • Spontaneous movement

  • Inhibition of movement67,72)

SLF I

  • Spatial 2-back test

  • Spatial working memory disturbance38)

II

  • Line bisection test

  • Visuospatial agnosia35)

III

  • Picture naming
Frontal aslant tract

  • Picture naming

  • Inhibition of speech72,75)

Optic radiation

  • 4-screen picture naming

  • Phosphene66)

  • Blurred vision66)

ILF (posterior part)

  • Picture naming

  • Word reading

  • Visual paraphasia55)

  • Dyslexia50)

Pyramidal tract

  • Spontaneous movement

  • Muscle contraction67)

Somatosensory tract

  • Subjective sensation

  • Dysesthesia24)

IFOF: inferior fronto-occipital fascicle, ILF: inferior longitudinal fascicle, PPTT: pyramids and palm trees test, SLF: superior longitudinal fascicle. An asterisk shows reference numbers.