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according action activity Anaxagoras animals appear apperceptive arise Aristotle association auditory nerve bodily body brain called cause colour combination complex conceive concepts condition connexion consciousness consequence consider corresponding degree Democritus desire dissimilation distance distinct distinguish effect elements emotions Empedocles ence ethnic psychology excited existence experience external fact faculties feelings fibres follows fusion ical images imagination immediately impressions intellectual kind knowledge less magnitude manner matter means medullary substance memory ment mental monad motion movement nature nerves object observe optic nerve organ original pain particular passions perceive perception phenomena physiological pleasure present principle processes produced Protagoras psychical psychology psychophysical qualities reason regard relation retina rience Scholium sensation sense sensible sensorium sight similar simple ideas smell Socrates soul sound stimulus substance successive suppose taste Theaet Theaetetus things thought tion touch truth understanding vibrations visual volition Weber's law words
Page 658 - Common sense says, we lose our fortune, are sorry and weep; we meet a bear, are frightened and run; we are insulted by a rival, are angry and strike. The hypothesis here to be defended says that this order of sequence is incorrect...
Page 276 - Suppose a man born blind, and now adult, and taught by his touch to distinguish between a cube and a sphere of the same metal, and nighly of the same bigness, so as to tell, when he felt one and the other, which is the cube, which the sphere. Suppose then the cube and sphere placed on a table, and the blind man to be made to see; quaere, whether by his sight, before he touched them, he could now distinguish and tell which is the globe, which the cube?
Page 280 - The common degrees of these are easily distinguished; tho' it is not impossible but in particular instances they may very nearly approach to each other. Thus in sleep, in a fever, in madness, or in any very violent emotions of soul, our ideas may approach to our impressions : As on the other hand it sometimes happens, that our impressions are so faint and low, that we cannot distinguish them from our ideas.
Page 233 - ... trouble myself to examine wherein its essence consists; or by what motions of our spirits or alterations of our bodies we come to have any sensation by our organs, or any ideas in our understandings; and whether those ideas do in their formation, any or all of them, depend on matter or not. These are speculations which, however curious and entertaining, I shall decline, as lying out of my way in the design I am now upon. It shall suffice to my present purpose, to consider the discerning faculties...
Page 317 - The white medullary substance of the brain is also the immediate instrument by which ideas are presented to the mind ; or, in other words, whatever changes are made in this substance, corresponding changes are made in our ideas ; and vice versa.
Page 280 - There is another division of our perceptions, which it will be convenient to observe, and which extends itself both to our impressions and ideas. This division is into SIMPLE and COMPLEX. Simple perceptions or impressions and ideas are such as admit of no distinction nor separation. The complex are the contrary to these, and may be distinguished into parts. Tho...
Page 645 - But the feeling of an absence is toto coelo other than the absence of a feeling. It is an intense feeling. The rhythm of a lost word may be there without a sound to clothe it ; or the evanescent sense of something which is the initial vowel or consonant may mock us fitfully, without growing more distinct Every one must know the tantalizing effect of the blank rhythm of some forgotten verse, restlessly dancing in one's mind, striving to be filled out with words.
Page 234 - Every man being conscious to himself that he thinks; and that which his mind is applied about whilst thinking being the IDEAS that are there, it is past doubt that men have in their minds several ideas, — such as are those expressed by the words whiteness, hardness, sweetness, thinking, motion, man, elephant, army, drunkenness, and others: it is in the first place then to be inquired, HOW HE COMES BY THEM?
Page 667 - That the skin is much affected under the sense of great fear, we see in the marvellous manner in which perspiration immediately exudes from it. This exudation is all the more remarkable, as the surface is then cold, and hence the term, a cold sweat; whereas the sudorific glands are properly excited into action when the surface is heated.