White matter tracts

Arcuate Fasciculus

Sound to motor mapping (dorsal)

superior longtitudinal fasciculus

Dorsal integration of auditory and motor systems

Inferior fronto-occipital fasciculus

Sound/visual input to meaning (ventral)

uncinate fasciculus

semantic memory access and retrieval

inferior longitudinal fasciculus

visual-semantic integration

middle longitudinal fasciculus

temporal-temporal integration

Frontal Aslant Tract

Speech initiation and control

conduction aphasia, stuttering, apraxia

arculate fasciculus

conduction aphasia, agrammatic speech

superior longitudinal fasciculus

Alexia without agraphia, semantic paraphrasis

inferior fronto-occipital fasciculus

anomia, semantic dementia, reduced fluency

unicate fasciculus

Alexia, visual agnosia, semantic dementia

inferior longitudinal fasciculus

impaired semantic comprehension/processing

middle longitudinal fasciculus

nonfluent aphasia, akinetic mutism, stuttering

frontal aslant tract