How does the brain create the experience of consciousness?

Consciousness is one of neuroscience’s biggest open questions. Most researchers think it arises when multiple brain systems exchange information efficiently, allowing the brain to combine sensation, memory, and attention into a unified experience. Networks in the cortex, thalamus, and brainstem are often studied because they are important for wakefulness and awareness. Although many theories exist, no single brain location has been proven to create consciousness by itself.