Auditory perception

“ There is every reason then to believe that auditory tonal images are the sole primary and essential guides to the minute alterations of tension in the muscles of the larynx necessary for the production of corresponding vocal sounds. By humming a tune we concentrate our attention and thereby limit the activity of neural processes to systems and communities of neurones employed for the perception of tonal images and their activation in motor processes ”

“ And having found, that the Auditory Nerve was not perished, but that he could hear the sound of a Lute-string, holding one end thereof in his Teeth; and had some perception of any very vehement sound, I supposed the defect to lie in the want of due Tension of the Tympanum of his Ear; whose use I took to be, onely to preserve the Auditory Nerve, and Brain, and inward parts of the Ear from outward injury by cold, Dull, &c and to be no more to Hearing, than glass in the window is in a Room to seeing, i.e. ”

“ Among all our impressions, those of sight and hearing are those most easily revived. Now, though the visual faculty has at its disposal a very rich, varied, and delicate motor apparatus, this is not the case with the auditory. ”

“ It is owing to them and to their mechanism that we ought to feel, from the same excitant, a sensation of sound or one of colour, that is to say, impressions which appear, when compared, as the most different in the world. Now, so far as we can make out, the histological structure of our auditory centre is the same as that of our visual centre. ”

“ The ideas which audible impressions leave in the region of the brain, that corresponds to the auditory nerves, are, next to the ideas of sight, the most vivid and definite of any; and all the observations above made upon the ideas of sight may be applied to those of hearing, proper changes and allowances being made. ”

“ The Sense of Hearing.—The external ear, although curiously shaped, is not the most important part of the organ whose function it is to take cognizance of sounds. In the transmission of sound to the brain, the vibrations of the air produced by the sonorous body are collected by the external ear, and conducted through the auditory canal to the drum of the ear, which is so arranged that it may be relaxed or tightened like the head of an ordinary drum. ”

“ An audile is one in whom the sense of hearing is predominant. [In motiles the impulse is towards motor action.]
"Suppose the psychic is a visual and the communicator an audile, might not that difference make a marked difficulty in the adjustment necessary for communicating clearly?... A visual might see apparitions more easily, and have more difficulty in automatic writing; and an audile might easily hear voices and write with more difficulty, etc.... A proper name is purely an auditory concept. ”

“ In hearing, the minute auditory nerves merely receive an impulse from the vibrations or wavelets of the elastic atmosphere, and this constitutes what we call noise, tones, music, voice. But these tones or noises are in the mind only; they are not appreciated by the exercise of any other sense. ”

“ The pulses created in the air by a sounding body are received by the ear and the impulses which they impart to the auditory nerve pass to the brain and we become conscious of a sound. The ear is capable of marvelous discrimination and accuracy. "In order to form an idea of the extent of this power imagine an auditor in a large music hall where a full band and chorus are performing. Here, there are sounds mingled together of all varieties of pitch, loudness, and quality ”

“ How exciting it would be to find a music critic whose auditory nerves were as sensitive as his visual or gustatory nerves! Surely it’s not asking too much of people engaged in the business of sound that they be able not only to listen but to hear. ”

“ They are probably acquainted with a whole world of physical facts of which we are utterly ignorant. Our auditory apparatus supplies us with a knowledge of sounds. What are these sounds? They are vibrations of matter which are capable of producing corresponding or sympathetic vibrations of the drums of our ears or the bones of our skull. When we carefully examine the subject, and count the number of vibrations that produce our world of sounds of varying pitch, we find that the human ear can only respond to a limited range of such vibrations. ”

“ But if there should be, as possibly there may be, something in the ear, similar to what we find in the eye, that ability would not be entirely owing to memory. Possibly the vibrations given to the auditory nerves by a particular sound may actually continue some time after the cause of those vibrations is past, and the agreement or disagreement of a subsequent sound become by comparison with them more discernible. ”

“ So when we attend to the irritative ideas of sound in our ears, which are generally not attended to, we can hear them; and can see the spectra of objects, which remain in the eye, whenever we please to exert our voluntary power in aid of those weak actions of the retina, or of the auditory nerve. ”

“ If we had an ear for height and an ear for depth, just as we have an eye for the right and an eye for the left, we should also find that symmetrical sound-structures existed for our auditory organs. The contrast of major and minor for the ear corresponds to inversion for the eye, which is also only symmetry for the mind, but not for sensation. ”

“ Communication exists externally with the middle ear by the round and oval windows and internally with the internal auditory canal, through which passes the eighth cranial or auditory nerve, the special nerve of hearing, which is distributed to the inner ear only. ”

“ Hearing is finally a psychological or mental condition, a state of consciousness, but is always associated with certain physiological processes, which are initiated by a physical stimulus in the form of waves in a fluid surrounding the hair-cells of the auditory end-organ; which waves may again be traced to the movements of the bones of the middle ear, caused by the swinging to and fro of the drum-head, owing to vibrations of the air produced by a sounding body. ”

“ The auditory type, however, confuses elements that are similar in sound or accent. The auditory and kinesthetic types depend largely on reading aloud for memorizing, while the visual type is scarcely aided by it. These differences are of much importance for all the various kinds of professional activity. ”

“ The appreciation of line, on the other hand, seems to be due to mental association with touching and feeling, and therefore is rather a matter of attention and judgment.”
“Will you kindly explain me also?” asked the musician, who had been telling how no one knows his own voice in a phonograph, because every one hears his own speech reverberate through his inner, as well as his outer ear.
“Music is the most emotional and the most rhythmical of the arts,” continued the psychologist, “because the auditory nerve keeps close company in the brain with nerves from the heart and lungs. ”

“ In the case of ordinary sounds, the compression of the air in the wave is so slight that only the delicate auditory nerves respond to the impact, hence we naturally conclude that sounds are perceived only by the ear. ”

“ At most the high note is felt as a thinner, brighter streak against a darker background. In an article on Space, published in the Journal of Speculative Philosophy for January, 1879, I ventured to suggest that possibly the auditory nerve termini might be "excited all at once by sounds of any pitch, as the whole retina would be by every luminous point if there were no dioptric apparatus affixed." ”

“ The outer ear collects the vibrations, the middle ear conducts them, and the internal converts them into a special physiological condition of the hair-cells and the auditory nerve. This condition is communicated to the other links in the anatomical hearing chain, until the highest part of the brain, or cortex, is reached. Hearing, from the physiological point of view, is the outcome of a series of processes having their development in a corresponding series of centres, or collections of nerve-cells. ”

“ Against the six elementary visual sensations are to be set auditory elements to the number of hundreds or thousands. From the fact that every distinguishable pitch gives a tone which seems as simple and unblended as any other, the conclusion would seem to be that each was an element ”

“ On the other hand, they [183] are not so rich, and contain less detail than visual images do.
The meaning of auditory messages is seldom very clear; but there are cases where it is wonderfully so. Such are the chief features of provoked auditory phenomena. I have given too little attention to this phase of manifestation, to be able to enter into a more complete analysis of it.
Clairaudience is more frequent; perhaps this is due to the negligence of experimenters, who do not think of using the methods of induction I have just described. ”

“ At last, we said (p. 23) , there results some simple and massive process in the auditory centres of the hemispherical cortex, to which, as a whole, the feeling of musical pitch directly corresponds. Already, in discussing the localization of functions in the brain, I had said (pp. 158-9) that consciousness accompanies the stream of innervation through that organ and varies in quality with the character of the currents, being mainly of things seen if the occipital lobes are much involved, of things heard if the action is focalized in the temporal lobes, etc., etc. ”

“ Yet the auditory-motor associations are probably always latent at the least, that is, they are unconsciously brought into play. Even those who read and think without the slightest use of sound imagery are, at last analysis, dependent on it. They are merely handling the circulating medium, the money, of visual symbols as a convenient substitute for the economic goods and services of the fundamental auditory symbols. ”

“ And even though he be a physiologist, and knows that the force of sensation in this case is due to the propagation of vibrations to the auditory centre by other channels than the usual one of the ear, the deeply organized impulse to measure the strength of an external stimulus by the intensity of the sensation asserts its force. ”

“ The same thing is true in regard to the other senses; 50 for how can it be said that shell-fish, birds of prey, animals covered with spines, those with feathers and those with scales would be affected in the same way by the sense of touch? and how can the sense of hearing perceive alike in animals which have the narrowest auditory passages, and in those that are furnished with the widest, or in those with hairy ears and those with smooth ones? For we, even, hear differently when we partially stop up the ears, from what we do when we use them naturally. ”

“ The influence of resonance and pitch, echo and absorption of tones, i.e., the location of the sound, is of great importance. Finally, it must not be forgotten that people’s ability to hear varies with the weather. Colds reduce the power, and not a few people are influenced by temperature, atmospheric pressure, etc. These considerations show the degree in which auditory illusions can be of importance even in tests of their nature and existence. They show above all that the same object of comparison under the same circumstances must be used in every test. ”

“ In the middle of the parterre.' It is clear that the pure audile, seeking to develop only a single one of his faculties, may, like the pure visualizer, perform astounding feats of memory—Mozart, for example, noting from memory the Miserere of the Sistine Chapel after two hearings; the deaf Beethoven, composing and inwardly repeating his enormous symphonies. On the other hand, the man of auditory{307} type, like the visual, is exposed to serious dangers; for if he lose his auditory images, he is without resource and breaks down completely. ”

“ In the inner chamber of the ear physical movements are in some wholly inscrutable manner translated into sensations of sound, and the confused aggregation of waves and ripples in the air, beating against the tympanic membrane there, takes effect in producing impulses which travel up the auditory nerve and expend their energy finally in the creation of sensations of melody and tune, which arouse emotions, revive memories, and stir sometimes the deepest feelings of our minds. ”

“ A gift even to a number of people of poor intelligence, it may or may not be associated with the sense of rhythm, which, as we have seen, is dependent upon the mental perception of successive movements associated with a sound. Both correct modulation and rhythm are essential for melody. The sense of hearing is the primary incitation to the voice. ”

“ The sonorous figures are formed in the auditory organ, and even in the auditory nerves, just as they have been represented upon an infinitely small scale in the air. The nerve becomes in hearing a sonorous figure. ”

“ You've watched the same thing at work in certain forms of hypnotic experimentation, haven't you?
“Through the operation of entirely understandable causes the mind gains the power to react to vibrations that normally pass unperceived; is able to project itself through this keying up of perception into a wider area of consciousness than the normal. Just as in certain diseases of the ear the sufferer, though deaf to sounds within the average range of hearing, is fully aware of sound vibrations far above and far below those the healthy ear registers.” ”