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→Handedness and language: expanded scope of Wada. While I agree that fMRI (and TMS!) is great for investigation, Wada test is still clinical standard of care. |
m →Movement and sensation: minor: "homunculus" technically a Latin word, :. pl > "homunculi" |
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===Movement and sensation===
In the [[1940s]], [[Canada | Canadian]] [[neurosurgery | neurosurgeon]] [[Wilder Penfield]] and his [[neurologist]] colleague [[Herbert Jasper]] developed a technique of brain mapping out help reduce [[Adverse effect (medicine) | side effect]]s caused by [[surgery]] to treat [[epilepsy]]. They stimulated [[motor cortex | motor]] and [[somatosensory cortex | somatosensory cortices]] of the brain with small electrical currents to activate discrete brain regions. They found that stimulation of one hemisphere's motor cortex could produce [[muscle]] contraction on the opposite side of the body. Furthermore, the functional map of the motor and [[Somatosensory system|sensory]] cortices is fairly consistent from person to person; Penfield and Jasper's famous pictures of the motor and sensory [[homunculus|homunculi]]
===Split brain patients===
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