Blog Post: The immune system and the brain: complement or casualty?

For a long time it has been assumed that the sole purpose of the immune system is to defend the body against infection. However, research is now showing that your immune system is doing much more than this. In fact, it is doing some extremely clever multitasking. These non-immune duties are important for the healthy development of your brain and consequently your mental health. If they go awry, they may cause mental disorder.

– Laura Westacott

Read more here.

Aphasia: A blog post by All Things Linguistic

The human brain has two hemispheres. In most people, the left hemisphere governs language.  We know this because in 1861, the physician Paul Broca studied a patient who lost the ability to use all but a single word: “tan.” During a postmortem study of that patient’s brain, Broca discovered a large lesion in the left hemisphere, now known as “Broca’s area.” Scientists today believe that Broca’s area is responsible in part for naming objects and coordinating the muscles involved in speech. Behind Broca’s area is Wernicke’s area, near the auditory cortex. That’s where the brain attaches meaning to speech sounds. Damage to Wernicke’s area impairs the brain’s ability to comprehend language. Aphasia is caused by injury to one or both of these specialized language areas.

– Gretchen McCulloch

Read more here.