Vision comes to mind.
An overview is presented in which visual awareness is regarded as the epitome of the general mind-body problem. An experimental solution of the problem is considered first, followed by a philosophical outlook. It is argued that the scientific approach may eventually discover the neural correlate of visual awareness, but visual perceptions, even simple qualia like 'brightness' or 'color', occur in the mind of a conscious observer and are not reducible to observable activity of a specific set of neurons in the brain.
Cogan
A I
AI
Smith-Kettlewell Eye Research Institute, San Francisco, CA 94115, USA.
D001364:Awareness; D001921:Brain / Q000502:physiology*; D003243:Consciousness; D006801:Humans; D009474:Neurons / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*