These are excerpts and elaborations from my book "The Nature of Consciousness"
|
An Impossible Science? It was the US psychologist
Karl Lashley who first warned that… the mind is never conscious. The mind can
never perceive the processing that goes on in the brain when the mind is
thinking something. When I think about myself, I am not conscious of what my
brain is doing. Whatever it is that I am feeling, it is not what the brain is
doing. I am not aware of the billions of electrochemical processes switching
neurons on and off. One can even suspect that it
is simply impossible for a conscious being to understand what consciousness is.
The US philosopher Thomas Nagel pointed out that one is only
capable of conceiving things as they appear to her, but never as they are in
themselves. We can only experience how it feels to be ourselves. We can never
experience how it feels to be something else, for the simple reason that we are
not something else. As Nagel wrote (“What is it like to be a bat”, 1974), we
can learn all about the brain mechanisms of a bat's sonar system but we will
never have the slightest idea of what it is like to have the sonar experiences
of a bat. Likewise, understanding how
the human brain works may not be enough to understand human consciousness. The Australian philosopher
Frank Jackson ("Epiphenomenal Qualia", 1982) used the example of a
color-blind neuroscientist who can only see black and white and, no matter how
much she knows about the neurophysiology of colors, will never experience what
red feels like. Back to the beginning of the chapter "Consciousness: the Factory of Illusions" | Back to the index of all chapters |
|
|
|
|