1.1. The Consciousness of Consciousness
WHEN ASKED the question, what is consciousness? we become conscious of consciousness. And most of us take this consciousness of consciousness to be what consciousness is. This is not true.
In being conscious of consciousness, we feel it is the most self-evident thing imaginable. We feel it is the defining attribute of all our waking states, our moods and affections, our memories, our thoughts, attentions, and volitions. We feel comfortably certain that consciousness is the basis of concepts, of learning and reasoning, of thought and judgment, and that it is so because it records and stores our experiences as they happen, allowing us to introspect on them and learn from them at will. We are also quite conscious that all this wonderful set of operations and contents that we call consciousness is located somewhere in the head.
On critical examination, all of these statements are false. They are the costume that consciousness has been masquerading in for centuries. They are the misconceptions that have prevented a solution to the problem of the origin of consciousness. To demonstrate these errors and show what consciousness is not, is the long but I hope adventurous task of this chapter.
The Extensiveness of Consciousness
To begin with, there are several uses of the word consciousness which we may immediately discard as incorrect. We have for example the phrase “to lose consciousness” after receiving a blow on the head. But if this were correct, we would then have no word for those somnambulistic states known in the clinical literature where an individual is clearly not conscious and yet is responsive to things in a way in which a knocked-out person is not. Therefore, in the first instance we should say that the person suffering a severe blow on the head loses both consciousness and what I am calling reactivity, and they are therefore different things.
This distinction is also important in normal everyday life. We are constantly reacting to things without being conscious of them at the time. Sitting against a tree, I am always reacting to the tree and to the ground and to my own posture, since if I wish to walk, I will quite unconsciously stand up from the ground to do so. Immersed in the ideas of this first chapter, I am rarely conscious even of where I am. In writing, I am reacting to a pencil in my hand since I hold on to it, and am reacting to my writing pad since I hold it on my knees, and to its lines since I write upon them, but I am only conscious of what I am trying to say and whether or not I am being clear to you.
If a bird bursts up from the copse nearby and flies crying to the horizon, I may turn and watch it and hear it, and then turn back to this page without being conscious that I have done so. In other words, reactivity covers all stimuli my behavior takes account of in any way, while consciousness is something quite distinct and a far less ubiquitous phenomenon. We are conscious of what we are reacting to only from time to time. And whereas reactivity can be defined behaviorally and neurologically, consciousness at the present state of knowledge cannot. But this distinction is much more far-reaching. We are continually reacting to things in ways that have no phenomenal component in consciousness whatever. Not at any time. In seeing any object, our eyes and therefore our retinal images are reacting to the object by shifting twenty times a second, and yet we see an unshifting stable object with no consciousness whatever of the succession of different inputs or of putting them together into the object. An abnormally small retinal image of something in the proper context is automatically seen as something at a distance; we are not conscious of making the correction. Color and light contrast effects, and other perceptual constancies all go on every minute of our waking and even dreaming experience without our being in the least conscious of them. And these instances are barely touching the multitude of processes which by the older definitions of consciousness one might expect to be conscious of, but which we definitely are not. I am here thinking of Titchener’s designation of consciousness as “the sum total of mental processes occurring now.” We are now very far from such a position.
But let us go further. Consciousness is a much smaller part of our mental life than we are conscious of, because we cannot be conscious of what we are not conscious of. How simple that is to say; how difficult to appreciate! It is like asking a flashlight in a dark room to search around for something that does not have any light shining upon it. The flashlight, since there is light in whatever direction it turns, would have to conclude that there is light everywhere. And so consciousness can seem to pervade all mentality when actually it does not.
The timing of consciousness is also an interesting question. When we are awake, are we conscious all the time? We think so. In fact, we are sure so! I shut my eyes and even if I try not to think, consciousness still streams on, a great river of contents in a succession of different conditions which I have been taught to call thoughts, images, memories, interior dialogues, regrets, wishes, resolves, all interweaving with the constantly changing pageant of exterior sensations of which I am selectively aware. Always the continuity. Certainly this is the feeling. And whatever we’re doing, we feel that our very self, our deepest of deep identity, is indeed this continuing flow that only ceases in sleep between remembered dreams. This is our experience. And many thinkers have taken this spirit of continuity to be the place to start from in philosophy, the very ground of certainty which no one can doubt. Cogito, ergo sum. But what could this continuity mean? If we think of a minute as being sixty thousand milliseconds, are we conscious for everyone of those milliseconds? If you still think so, go on dividing the time units, remembering that the firing of neurons is of a finite order ? although we have no idea what that has to do with our sense of the continuity of consciousness. Few persons would wish to maintain that consciousness somehow floats like a mist above and about the nervous system completely ununited to any earthly necessities of neural refractory periods.
It is much more probable that the seeming continuity of consciousness is really an illusion, just as most of the other metaphors about consciousness are. In our flashlight analogy, the flashlight would be conscious of being on only when it is on. Though huge gaps of time occurred, providing things were generally the same, it would seem to the flashlight itself that the light had been continuously on. We are thus conscious less of the time than we think, because we cannot be conscious of when we are not conscious. And the feeling of a great uninterrupted stream of rich inner experiences, now slowly gliding through dreamy moods, now tumbling in excited torrents down gorges of precipitous insight, or surging evenly through our nobler days, is what it is on this page, a metaphor for how subjective consciousness seems to subjective consciousness.
But there is a better way to point this out. If you close your left eye and stare at the left margin of this page, you are not at all conscious of a large gap in your vision about four inches to the right. But, still staring with your right eye only, take your finger and move it along a line of print from the left margin to the right, and you will see the top of it disappear into this gap and then reappear on the other side. This is due to a two-millimeter gap on the nasal side of the retina where the optic nerve fibers are gathered together and leave the eye for the brain.1 The interesting thing about this gap is that it is not so much a blind spot as it is usually called; it is a non-spot. A blind man sees his darkness.2
But you cannot see any gap in your vision at all, let alone be conscious of it in any way. Just as the space around the blind spots is joined without any gap at all, so consciousness knits itself over its time gaps and gives the illusion of continuity.
Examples of how little we are conscious of our everyday behavior can be multiplied almost anywhere we look. Playing the piano is a really extraordinary example.3 Here a complex array of various tasks is accomplished all at once with scarcely any consciousness of them whatever: two different lines of near hieroglyphics to be read at once, the right hand guided to one and the left to the other; ten fingers assigned to various tasks, the fingering solving various motor problems without any awareness, and the mind interpreting sharps and flats and naturals into black and white keys, obeying the timing of whole or quarter or sixteenth notes and rests and trills, one hand perhaps in three beats to a measure while the other plays four, while the feet are softening or slurring or holding various other notes. And all this time the performer, the conscious performer, is in a seventh heaven of artistic rapture at the results of all this tremendous business, or perchance lost in contemplation of the individual who turns the leaves of the music book, justly persuaded he is showing her his very soul! Of course consciousness usually has a role in the learning of such complex activities, but not necessarily in their performance, and that is the only point I am trying to make here.
Consciousness is often not only unnecessary; it can be quite undesirable. Our pianist suddenly conscious of his fingers during a furious set of arpeggios would have to stop playing. Nijinsky somewhere says that when he danced, it was as if he were in the orchestra pit looking back at himself; he was not conscious of every movement, but of how he was looking to others. A sprinter may be conscious of where he is relative to the others in the race, but he is certainly not conscious of putting one leg in front of the other; such consciousness might indeed cause him to trip. And anyone who plays tennis at my indifferent level knows the exasperation of having his service suddenly ‘go to pieces’ and of serving consecutive double faults! The more doubles, the more conscious one becomes of one’s motions (and of one’s disposition!) and the worse things get.4
Such phenomena of exertion are not to be explained away on the basis of physical excitement, for the same phenomena in regard to consciousness occur in less strenuous occupations. Right at this moment, you are not conscious of how you are sitting, of where your hands are placed, of how fast you are reading, though even as I mentioned these items, you were. And as you read, you are not conscious of the letters or even of the words or even of the syntax or the sentences and punctuation, but only of their meaning. As you listen to an address, phonemes disappear into words and words into sentences and sentences disappear into what they are trying to say, into meaning. To be conscious of the elements of speech is to destroy the intention of the speech.
And also on the production side. Try speaking with a full consciousness of your articulation as you do it. You will simply stop speaking. And so in writing, it is as if the pencil or pen or typewriter itself spells the words, spaces them, punctuates properly, goes to the next line, does not begin consecutive sentences in the same way, determines that we place a question here, an exclamation there, even as we ourselves are engrossed in what we are trying to express and the person we are addressing. For in speaking or writing we are not really conscious of what we are actually doing at the time. Consciousness functions in the decision as to what to say, how we are to say it, and when we say it, but then the orderly and accomplished succession of phonemes or of written letters is somehow done for us.
Consciousness Not a Copy of Experience
Although the metaphor of the blank mind had been used in the writings ascribed to Aristotle, it is really only since John Locke thought of the mind as a tabula rasa in the seventeenth century that we have emphasized this recording aspect of consciousness, and thus see it crowded with memories that can be read over again in introspection. If Locke had lived in our time, he would have used the metaphor of a camera rather than a slate. But the idea is the same. And most people would protest emphatically that the chief function of consciousness is to store up experience, to copy it as a camera does, so that it can be reflected upon at some future time.
So it seems. But consider the following problems: Does the door of your room open from the right or the left? Which is your second longest finger? At a stoplight, is it the red or the green that is on top? How many teeth do you see when brushing your teeth? What letters are associated with what numbers on a telephone dial? If you are in a familiar room, without turning around, write down all the items on the wall just behind you, and then look.
I think you will be surprised how little you can retrospect in consciousness on the supposed images you have stored from so much previous attentive experience. If the familiar door suddenly opened the other way, if another finger suddenly grew longer, if the red light were differently placed, or you had an extra tooth, or the telephone were made differently, or a new window latch had been put on the window behind you, you would know it immediately, showing that you all along ‘knew’, but not consciously so. Familiar to psychologists, this is the distinction between recognition and recall. What you can consciously recall is a thimbleful to the huge oceans of your actual knowledge.
Experiments of this sort demonstrate that conscious memory is not a storing up of sensory images, as is sometimes thought. Only if you have at some time consciously noticed your finger lengths or your door, have at some time counted your teeth, though you have observed these things countless times, can you remember. Unless you have particularly noted what is on the wall or recently cleaned or painted it, you will be surprised at what you have left out. And introspect upon the matter. Did you not in each of these instances ask what must be there? Starting with ideas and reasoning, rather than with any image? Conscious retrospection is not the retrieval of images, but the retrieval of what you have been conscious of before,5 and the reworking of these elements into rational or plausible patterns.
Let us demonstrate this in another way. Think, if you will, of when you entered the room you are now in and when you picked up this book. Introspect upon it and then ask the question: are the images of which you have copies the actual sensory fields as you came in and sat down and began reading? Don’t you have an image of yourself coming through one of the doors, perhaps even a bird’s-eye view of one of the entrances, and then perhaps vaguely see yourself sitting down and picking up the book? Things which you have never experienced except in this introspection! And can you retrieve the sound fields around the event? Or the cutaneous sensations as you sat, took the pressure off your feet, and opened this book? Of course, if you go on with your thinking you can also rearrange your imaginal retrospection such that you do indeed ‘see’ entering the room just as it might have been; and ‘hear’ the sound of the chair and the book opening, and ‘feel’ the skin sensations. But I suggest that this has a large element of created imagery ? what we shall call narratizing a little later ? of what the experience should be like, rather than what it actually was like.
Or introspect on when you last went swimming: I suspect you have an image of a seashore, lake, or pool which is largely a retrospection, but when it comes to yourself swimming, lo! Like Nijinsky in his dance, you are seeing yourself swim, something that you have never observed at all! There is precious little of the actual sensations of swimming, the particular waterline across your face, the feel of the water against your skin, or to what extent your eyes were underwater as you turned your head to breathe.6 Similarly, if you think of the last time you slept out of doors, went skating, or ? if all else fails ? did something that you regretted in public, you tend not to see, hear, or feel things as you actually experienced them, but rather to re-create them in objective terms, seeing yourself in the setting as if you were somebody else. Looking back into memory, then, is a great deal invention, seeing yourself as others see you. Memory is the medium of the must-have-been. Though I have no doubt that in any of these instances you could by inference invent a subjective view of the experience, even with the conviction that it was the actual memory.
Consciousness Not Necessary for Concepts
A further major confusion about consciousness is the belief that it is specifically and uniquely the place where concepts are formed. This is a very ancient idea: that we have various concrete conscious experiences and then put the similar ones together into a concept. This idea has even been the paradigm of a slew of experiments by psychologists who thought they were thus studying concept formation. Max M?ller, in one of his fascinating discussions in the last century, brought the problem to a point by asking, whoever saw a tree? “No one ever saw a tree, but only this or that fir tree, or oak tree, or apple tree … Tree, therefore, is a concept, and as such can never be seen or perceived by the senses.”7 Particular trees alone were outside in the environment, and only in consciousness did the general concept of tree exist.
Now the relation between concepts and consciousness could have an extensive discussion. But let it suffice here simply to show that there is no necessary connection between them. When M?ller says no one has ever seen a tree, he is mistaking what he knows about an object for the object itself. Every weary wayfarer after miles under the hot sun has seen a tree. So has every cat, squirrel, and chipmunk when chased by a dog. The bee has a concept of a flower, the eagle a concept of a sheer-faced rocky ledge, as a nesting thrush has a concept of a crotch of upper branch awninged with green leaves. Concepts are simply classes of behaviorally equivalent things. Root concepts are prior to experience. They are fundamental to the aptic structures that allow behavior to occur at all.8 Indeed what M?ller should have said was, no one has ever been conscious of a tree. For consciousness, indeed, not only is not the repository of concepts; it does not usually work with them at all! When we consciously think of a tree, we are indeed conscious of a particular tree, of the fir or the oak or the elm that grew beside our house, and let it stand for the concept, just as we can let a concept word stand for it as well. In fact, one of the great functions of language is to let the word stand for a concept, which is exactly what we do in writing or speaking about conceptual material. And we must do this because concepts are usually not in consciousness at all.