From neurosurgeon Michael Egnor at Plough Quarterly:
I watched the CAT scan images appear on the screen, one by one. The baby’s head was mostly empty. There were only thin slivers of brain – a bit of brain tissue at the base of the skull, and a thin rim around the edges. The rest was water.
Her parents had feared this. We had seen it on the prenatal ultrasound; the CAT scan, hours after birth, was much more accurate. Katie looked like a normal newborn, but she had little chance at a normal life. She had a fraternal-twin sister in the incubator next to her. But Katie only had a third of the brain that her sister had. I explained all of this to her family, trying to keep alive a flicker of hope for their daughter.
I cared for Katie as she grew up. At every stage of Katie’s life so far, she has excelled. She sat and talked and walked earlier than her sister. She’s made the honor roll. She will soon graduate high school. More.
Egnor goes on to talk about similar examples. Brain imaging techniques have done for materialism in neuroscience what the match did for the haystack.
See also: Neurosurgeon: Craniopagus twins demonstrate separate “souls” without separate brains
11-year-old conjoined twins have a connected brain, see through each others’ eyes, but have separate minds
Post-modern science: The illusion of consciousness sees through itself
Neuroscience tried wholly embracing naturalism, but then the brain got away