Today's discussion of brain areas associated with language use sparked a lot of great questions from my students. Here, an attempt to provide some answers that I didn't have readily available:
- First, a good primer on aphasia, including prevalence rates and types.
- Compare this to dyslexia, another language (reading) impairment that was brought up. In considering the causes of both, dyslexia seems to have much more complicated causal factors (injury, genetics, other organic dysfunction) than aphasia, which is almost always due to injury or stroke.
- Another interesting language-related illness: Landau-Kleffner Syndrome, which is related to abnormal electrical activity (seizures) and occurs in children. This is a much more rare condition and less is known about the causes, as only 160 cases have been reported since 1957.