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“The human brain, for all its sophistication, would be useless without its link to the outside world. Consider one experiment that illustrates this point. Volunteers hallucinated when they were deprived of sensory input by being blindfolded and suspended and warm water in a sensory deprivation tank. One saw charging pink and purple elephants. Another heard a chorus, still others had taste hallucinations. Our very sanity depends on a continuous flow of information from the outside.” — Marieb Elaine N. Hoehn Katja
The human brain, for all its sophistication, would be useless without its link to the outside world. Consider one experiment that illustrates this point. Volunteers hallucinated when they were deprived of sensory input by being blindfolded and suspended and warm water in a sensory deprivation tank. One saw charging pink and purple elephants. Another heard a chorus, still others had taste hallucinations. Our very sanity depends on a continuous flow of information from the outside.