Functional neuroimaging of language builds on almost 150 years of study in neurology, psychology, linguistics, anatomy, and
physiology. In recent years, there has been an explosion of research using functional imaging technology, especially positron
emission tomography (PET) and functional magnetic resonance imaging (fMRI), to understand the relationship between brain mechanisms
and language processing. These methods combine highresolution anatomic images with measures of languagespecific brain activity
to reveal neural correlates of language processing. This article reviews some of what has been learned about the neuroanatomy
of language from these imaging techniques. We first discuss the normal case, organizing the presentation according to the
levels of language, encompassing words (lexicon), sound structure (phonemes), and sentences (syntax and semantics). Next,
we delve into some unusual language processing circumstances, including second languages and sign languages. Finally, we discuss
abnormal language processing, including developmental and acquired dyslexia and aphasia.