The Mystery of Phantom Limbs

The video explores the concept of Phantom Limb, an illusion where amputees feel sensations in missing limbs. It explains how the brain constructs reality, sometimes leading to phantom sensations. An experiment is described where a fake arm is stroked alongside a real one, causing the brain to perceive two arms. The video highlights the brain's role in body perception and the absence of pain sensation within the brain, allowing neurosurgeons to operate while patients are awake.

What is the Phantom Limb phenomenon?

• A condition where a person can feel sensations in a missing limb

• A type of optical illusion involving mirrors

• A psychological disorder related to body image

• A rare genetic mutation affecting limb growth

In the Phantom Limb illusion experiment, what is used to create the illusion of a second arm?

• A fake rubber arm

• A mirror

• A virtual reality headset

• A hologram

How does the brain determine the position of our limbs?

• By using only visual cues

• By using auditory signals

• By relying solely on muscle memory

• By combining information from position, touch, and muscle signals

What is responsible for the Phantom Limb illusion according to the video?

• The heart's rhythm

• The body's nervous system

• The brain's body map

• The spinal cord

Why can neurosurgeons operate on the brain while the patient is awake?

• Because the brain is not connected to the nervous system

• Because the brain regenerates quickly

• Because the brain has no sense of pain

• Because the brain is not essential for consciousness