*** ct chap. 4 pp. 63-65 How Unique You Are! ***
Consciousness, says one definition, is "the perception of what passes in a man’s own mind." Modern researchers have made great strides in understanding the physical makeup of the brain and some of the electrochemical processes that occur in it. They can also explain the circuitry and functioning of an advanced computer. However, there is a vast difference between brain and computer. With your brain you are conscious and are aware of your being, but a computer certainly is not. Why the difference?
Frankly, how and why consciousness arises from physical processes in our brain is a mystery. "I don’t see how any science can explain that," one neurobiologist commented. Also, Professor James Trefil observed: "What, exactly, it means for a human being to be conscious . . . is the only major question in the sciences that we don’t even know how to ask." One reason why is that scientists are using the brain to try to understand the brain. And just studying the physiology of the brain may not be enough. Consciousness is "one of the most profound mysteries of existence," observed Dr. David Chalmers, "but knowledge of the brain alone may not get [scientists] to the bottom of it."
Nonetheless, each of us experiences consciousness. For example, our vivid memories of past events are not mere stored facts, like computer bits of information. We can reflect on our experiences, draw lessons from them, and use them to shape our future. We are able to consider several future scenarios and evaluate the possible effects of each. We have the capacity to analyze, create, appreciate, and love. We can enjoy pleasant conversations about the past, present, and future. We have ethical values about behavior and can use them in making decisions that may or may not be of immediate benefit. We are attracted to beauty in art and morals. In our mind we can mold and refine our ideas and guess how other people will react if we carry these out.
Such factors produce an awareness that sets humans apart from other life-forms on earth. A dog, a cat, or a bird looks in a mirror and responds as if seeing another of its kind. But when you look in a mirror, you are conscious of yourself as a being with the capacities just mentioned.
The last statement is plainly false. The NGC program "Human Ape" showed precisely that our closest primate relatives have the same ability. Here is segment devoted to the mirror test and how apes perform:
