What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
according actions activity acts animals appear associated Auditory become body Brain called cause cells centres Cerebellum Cerebral Cerebral Hemispheres changes close commissure common comparatively complex concerned condition connected Consciousness constitute continuous convolutions Corpus corresponding Cranial Nerves definite direction distinct exist external extremity fact Feeling fibres Fishes fissure frontal functions ganglia ganglion given groups Hemisphere higher human important impressions increase instance internal kind known larger latter less lobes lower means Medulla mental Mind mode motor movements muscles nature nerve nervous system object observations Olfactory optic organs pass Peduncles Perception portion posterior present principal probably processes reason received referred regard regions relation representatives result says seems seen sensations sense sensory separate side similar situated Speech Spinal Cord structure surface third thought tion upper various ventricle Visual weight whilst Writing
Page 534 - follows upon the command of our Will. Of this we are every moment conscious. But the means by which this is effected ; the energy by which the Will performs so extraordinary an operation ; of this we are so far from being immediately conscious, that it must ever escape our diligent inquiry.
Page 227 - variations of instincts : that is of variations produced by the same unknown causes which produce slight deviations of bodily structure For peculiar habits confined to the workers or sterile females, however long they might be followed, could not possibly affect the males and fertile females which alone leave descendants.
Page 226 - Under domestication instincts have been acquired, and natural instincts have been lost, partly by habit, and partly by man selecting and accumulating during successive generations peculiar mental habits and actions, which at first appeared from •what we must in our ignorance call an accident. In some cases compulsory habit alone
Page 226 - periods of life, or at different seasons of the year, or when placed under different circumstances, &c. ; in which case either the one or the other instinct might be preserved by natural selection. And such instances of diversity of instinct in the same species can be shown to occur in nature.
Page 147 - second place we have every reason for believing that there is, in company with all our mental processes, an unbroken material succession. From the ingress of a sensation to the outgoing responses in action, the mental succession is not for an instant dissevered from a physical succession
Page 537 - of Deliberation, and, concerning this process, Hobbes says : —" The whole sum of desires, aversions, hopes and fears, continued till the thing be either done or thought impossible, is what we call Deliberation." " Appetite, therefore, and aversion are simply
Page 191 - There cannot be co-ordination of many stimuli without some ganglion through which they are all brought into relation, this ganglion must be subject to the influence of each—must undergo many changes. And the quick succession of changes in a ganglion, implying as it does perpetual experiences of differences and likenesses, constitutes the raw material of Consciousness.
Page 147 - It would be incompatible with everything we know of cerebral action, to suppose that the physical chain ends abruptly in a physical void, occupied by an immaterial substance ; which immaterial substance, after working alone, imparts its results to the other edge of the physical break, and determines the active response—two shores of the material with an intervening ocean of the immaterial.
Page 406 - The concept thus formed by an abstraction of the resembling from the non-resembling qualities of objects, would again fall back into the confusion and infinitude from which it has been called out, were it not rendered permanent for consciousness, by being fixed and ratified in a verbal sign.