Neuroanatomist Jill Bolte Taylor had an opportunity few brain scientists would wish for: One morning, she realized she was having a massive stroke. As it happened -- as she felt her brain functions slip away one by one, speech, movement, understanding -- she studied and remembered every moment. This is a powerful story about how our brains define us and connect us to the world and to one another.
Besides explaining left and right brain function she also reveals her thoughts and feelings during a stroke. It is also an example of a nice educational presentation.
No lectern, no walls. Her slides are simple but serve a necessary role. She also uses another powerful visual aid (but I won't give it away—watch it).
Talking of strokes, here are 4 simple signs to recognize stroke and probably save lifes