![]() ![]() ![]() We don’t get the words “the thought is material” in the literal sense but as a metaphor. It is like the tip of the iceberg, where the rest of the subconscious part is situated under the water, and it is difficult to get. But what about consciousness and our brain by which we orient and act?Īs Eagleman thinks, the capabilities of our brain are enormous, but they remain unrevealed. Drugs, neurotransmitters, hormones, and virus can also manipulate our behaviour. ![]() Our essence depends not only on our genes. You may advise a Huntington’s chorea patient to demonstrate his free will and stop twitching his hand, but he is unable to do it. Our essence depends on our biology, and we can’t escape it as Eagleman believes. It appears long before the uncontrolled external signs such as sudden and spastic movements of the limbs shown up. For example, the damage of the frontal cortex during Huntington’s disease caused by mutation of one gene can lead to changes in personality: the ill patients become aggressive, hypersexual and in some cases, they ignore social norms, and they are prone to impulsive acts as well. The tiny mutations in the particular genes determine and change human behaviour. ![]()
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