The brainstem auditory pathway is one of the earliest
systems to become myelinated and functional.
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Research Proposal
Motivation
Speech understanding
Inferior colliculus lesions
Brainstem aphasia?

Plan
fMRI of the inferior colliculi
Subjects
Testing strategies
Anticipated results

Working hypotheses
Language areas on fMRI
Effects of asphyxia at birth
Maturation of the brain
Time-table of myelination
Learning to speak "by ear"
Metabolism in the brain
Protective mechanisms
Catastrophic factors
Brainstem damage
ICol - inferior colliculus (auditory)
Scol - superior colliculus (visual)
TzB - trapezoid body (auditory)
SOl -superior olive (auditory)
LLm - lateral lemniscus (auditory)
Mlm - medial lemniscus (motor)
January 2006
From Yakovlev & Lecours (1967) with permission
from Blackwell Scientific Publishers
Working version
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