Book Excerpt: Why the Brain Isn’t the Self

The article challenges the common assumption that the brain is the seat of the self, a view rooted in neuroscience and philosophy.

Historically, thinkers like René Descartes (17th century) proposed that the brain, specifically the pineal gland, was the interface between the immaterial mind and the physical body.

Modern neuroscience often equates brain activity with consciousness, implying that the self is an emergent property of neural processes.

However, the article argues that this perspective may be incomplete, as it overlooks the role of the body and environment in shaping identity.

For instance, studies on patients with brain injuries or conditions like Alzheimer’s disease show that while cognitive functions may decline, aspects of the self—such as emotional memories or personal values—can persist, suggesting the self is not solely dependent on the brain.