The Measure of Mind
The hard problem, machine minds, and the neural correlates researchers can measure but still cannot fully explain. This wing holds the live, unresolved fight over what consciousness actually is, integrated information against global workspace and everything contesting both.

Blindsight: Seeing Without Knowing You See
Ask a patient with V1 damage what is in their blind field and they say nothing. Ask them to guess and they are right far more often than chance allows. What that proves is the contested part.

Global Workspace Theory: Consciousness as the Brain's Broadcast
Consciousness as a broadcast: one representation wins the competition and goes out to the whole brain at once. What the theory explains, and the line it does not cross.

Qualia: The Redness of Red and the Limits of Science
Philosophy says experience carries properties no instrument can reach: ineffable, intrinsic, private, yours alone. A serious literature says nothing answers to that description.

Sleep and Dreams: The Nightly Voyage Out of Waking
A stage of sleep is a rule for reading a signal, and the rule was rewritten in 2007. REM is not the dreaming stage, and everything known about dream content is known from what people said after waking.

Synaesthesia: The People Who Taste Words and See Sound
Letters with colors, words with tastes. The evidence that separates synaesthesia from metaphor is a test you can score, and the test is more interesting than the phenomenon.

Anesthesia: The Reversible Off-Switch for the Self
We switch consciousness off on purpose hundreds of millions of times a year and still cannot fully say how. Anesthesia is our closest thing to an experiment on the mind itself.

The Hard Problem: Why Does Any of This Feel Like Anything?
We can map every neuron in a brain and still not explain why any of it is accompanied by experience. The one problem neuroscience cannot yet touch.

Integrated Information Theory: Putting a Number on Consciousness
The theory that tries to put a number on consciousness. Phi says how conscious any system is, and its predictions are as bold as they are contested.

Machine Consciousness: Could a Program Ever Wake Up?
A machine can act aware in every measurable way and still leave us no test for whether anything is actually experienced inside. The honest state of the question.

The Split-Brain: Two Minds Inside One Skull?
Cut the cable between the two hemispheres and each half can see, choose, and answer on its own. The clearest evidence that one skull might hold two minds, and why that reading is now contested.