What will I learn about: how early pioneers of neuroscience mapped the human brain by studying the bizarre behaviors and autopsies of brain-damaged historical figures like King Henri II?

Discover how early pioneers of neuroscience mapped the human brain by studying the bizarre behaviors and autopsies of brain-damaged historical figures like King Henri II.

What will I learn about: the three-part architecture of your brain, from the lower brain's basic survival functions to the cortex's complex decision-making and sensory processing?

Understand the three-part architecture of your brain, from the lower brain's basic survival functions to the cortex's complex decision-making and sensory processing.

What will I learn about: Learn how neurons and glial cells form the crucial building blocks of your mind, and uncover how the starvation of these cells drove a historical assassin to insanity?

Learn how neurons and glial cells form the crucial building blocks of your mind, and uncover how the starvation of these cells drove a historical assassin to insanity.

What will I learn about: Explore how 100 billion neurons communicate across synapses using chemical neurotransmitters that either excite or inhibit the flow of information?

Explore how 100 billion neurons communicate across synapses using chemical neurotransmitters that either excite or inhibit the flow of information.

What will I learn about: how your brain's neural pathways remain elastic throughout your life, enabling extraordinary adaptations like blind individuals using echolocation to 'see' their surroundings?

Find out how your brain's neural pathways remain elastic throughout your life, enabling extraordinary adaptations like blind individuals using echolocation to 'see' their surroundings.

The Tale of the Dueling Neurosurgeons

The History of the Human Brain as Revealed by True Stories of Trauma, Madness and Recovery

Sam Kean

★ 4.5 / 5(112 ratings)

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Categories:

Science

If You're Curious About These Questions...

You should listen to this audiobook

💡Did you know that a single, freak injury to the brain can completely rewrite a person’s personality, memories, and even their moral compass?
💡Have you ever wondered how a 16th-century royal duel and a series of bizarre medical accidents paved the way for our modern understanding of the human mind?
💡Are you curious about the strange case studies that reveal how our brains create consciousness, emotions, and even the sensation of 'phantom' limbs?

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Key Takeaways from The Tale of the Dueling Neurosurgeons

✓Discover how early pioneers of neuroscience mapped the human brain by studying the bizarre behaviors and autopsies of brain-damaged historical figures like King Henri II.
✓Understand the three-part architecture of your brain, from the lower brain's basic survival functions to the cortex's complex decision-making and sensory processing.
✓Learn how neurons and glial cells form the crucial building blocks of your mind, and uncover how the starvation of these cells drove a historical assassin to insanity.
✓Explore how 100 billion neurons communicate across synapses using chemical neurotransmitters that either excite or inhibit the flow of information.
✓Find out how your brain's neural pathways remain elastic throughout your life, enabling extraordinary adaptations like blind individuals using echolocation to 'see' their surroundings.

Learning Tools

Reinforce what you learned from The Tale of the Dueling Neurosurgeons

Mind Map

The Tale of the Dueling Neurosurgeons

History of Neuroscience+

Brain Anatomy & Cells+

Communication & Plasticity+

Specific Regions & Functions+

Limbic System & Decisions+

Memory Processing+

Syndromes & Malfunctions+

Consciousness & Identity+

Quiz — Test Your Understanding

Question 1 of 10

How did early pioneers of neuroscience primarily learn about the inner workings of the healthy human brain?

A. By conducting psychological experiments on healthy volunteers.
B. By performing non-invasive brain scans on people completing complex tasks.
C. By studying individuals with brain damage and performing autopsies after they died.
D. By analyzing the chemical composition of neurotransmitters in live patients.

Question 2 of 10

What was the underlying cause of King Henri II's hallucinations following his jousting accident?

A. Damage to his frontal lobes, which disrupted his planning and strategizing.
B. Swelling and tissue decay in his occipital lobes at the back of his brain.
C. A severed corpus callosum that prevented his brain hemispheres from communicating.
D. A tumor in his temporal lobes that affected his language and recognition processing.

Question 3 of 10

What is the primary function of glial cells in the human brain?

A. They generate the electrical impulses needed to transmit sensory information.
B. They act as the primary receptors for hormones like somatropin.
C. They are exclusively responsible for storing and retrieving long-term memories.
D. They feed and stabilize the massive network of neurons.

Question 4 of 10

How do the brains of blind individuals who use echolocation demonstrate neuroplasticity?

A. Their auditory cortex grows significantly larger to process the high frequency of echoes.
B. The nerve cells in their ears connect to the visual cortex, allowing auditory input to stimulate brain regions responsible for vision.
C. They develop new glial cells that act as secondary sensory receptors for spatial orientation.
D. Their frontal lobes take over the visual processing functions of the damaged occipital lobes.

Question 5 of 10

Why might an amputee experience sensation in a missing or 'phantom' limb?

A. The absent limb is still represented by a dedicated strip of gray matter in the somatosensory cortex.
B. The 'where-stream' of the visual cortex continues to project the limb's physical image.
C. Hormones related to pain and trauma are still circulating in the bloodstream.
D. The limbic system generates a powerful emotional memory of the missing limb.

Question 6 of 10

What did the case of Elliot, whose limbic system was severed from his frontal lobes by a tumor, reveal about human decision-making?

A. Decision-making relies entirely on the rational processing of the frontal lobes.
B. Without the limbic system, a person loses all general intelligence and memory.
C. Good decision-making requires communication between the emotional limbic system and the rational frontal lobes.
D. The frontal lobes can independently compensate for the loss of emotional regulation over time.

Question 7 of 10

How do hormones differ from neurotransmitters in the way they communicate within the body?

A. Hormones travel through the bloodstream and have far-reaching effects, while neurotransmitters cross microscopic synapses between neurons.
B. Hormones act much faster than neurotransmitters to trigger immediate reflex actions.
C. Hormones are only produced in the frontal lobes, whereas neurotransmitters are produced throughout the entire body.
D. Hormones communicate exclusively via electrical impulses, while neurotransmitters rely entirely on chemical changes.

Question 8 of 10

What is the root cause of Korsakoff’s syndrome, a condition characterized by memory failure and compulsive lying?

A. A genetic mutation that causes neurons to misfire and short-circuit the brain.
B. A malfunction in the brain stem that disrupts normal sleep paralysis.
C. An overproduction of growth hormones by the pituitary gland.
D. A severe lack of vitamin B1, which is often prevented from being absorbed due to alcoholism.

Question 9 of 10

Which specific brain structure is primarily responsible for processing both short-term and long-term memories?

A. The cerebellum
B. The hippocampus
C. The amygdala
D. The thalamus

Question 10 of 10

What unusual symptom is experienced by individuals suffering from Capgras syndrome?

A. They lose the ability to articulate words but can still perfectly understand the language of others.
B. They become convinced that they are dead and have lost their 'glow.'
C. They recognize their loved ones visually but feel no emotional connection, believing them to be imposters.
D. They experience their own limbs as alien and disconnected from their bodies.