On this episode of ID The Future, neurosurgery professor Michael Egnor explores the case of Tatiana and Krista, the “Craniopagus Twins.” Their condition, he says, provides evidence against strict materialism. Tatiana and Krista are connected at the thalamus (which controls such things as wakefulness, motor function and vision) through a structure called a thalamic bridge. This bridge enables them to see through each other’s eyes to and control each other’s limbs. Egnor explains how their separate personalities and thoughts nevertheless show that there is something about the mind not reducible to the brain. Egnor also goes through the mind-brain research of Roger Sperry, Benjamin Libet and Wilder Penfield.
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