Viewing Neuroscience through Materialist Glasses
Dr. Steven Novella, the dogmatic materialist neurologist at Yale who has insisted that “…every single prediction [of the strict materialist understanding of the brain] has been validated” by science, has found even more scientific evidence for his personal ideology. Dr. Novella recently noted a report in Nature Neuroscience about fMRI correlates of decision-making in the brain.
In the report, “Unconscious determinants of free decisions in the human brain” authors Chun Siong Soon and colleagues at the Max Planck Institute in Germany show that brain activity in the prefrontal and parietal cortex may precede conscious decision-making by as much as ten seconds before a decision is consciously made. Each subject was asked to push a button with either the right hand or the left hand. Seven to ten seconds before the conscious decision, brain activity appeared that appeared to correlate with unconscious decision making. Sixty percent of the time, the brain activity correlated with the hand used (no correlation would be fifty percent).
The study is an interesting demonstration that brain activity as measured by fMRI (which measures local blood flow and metabolic activity) correlates to some degree with unconscious processing, as well as the well-known but weak correlation between fMRI and conscious thought. Dr. Novella notes:
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