Psychology: General IntroductionScribner, 1907 - 389 |
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activity animal areas aroused attention attitude auditory basilar membrane behavior binocular vision bodily body centers central nervous central nervous system cerebellum cerebral cortex cerebrum character characteristics cochlea color complex concept consciousness coördinated definite direct discussion elaborate example explain external fact feeling fibers figure function fusion habit higher human hypnosis ideas ideational illustration impressions impulses indirect individual instinctive intensity introspection lation memory images ment mental modes motor movement muscles muscular nature nerve cells nervous organization nervous system object observer organ of Corti organs of sense perception perience phases of experience physical physiological possible psychology reaction recognition recognized reference relation result retina rience scientific sciousness semicircular canals sensations sensory factors single social sory sound space space perception spatial spinal cord stimulation structure surface tactual tendency thought tion tones tympanic membrane unity vibrations visual word
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Strona 157 - I find it also acknowledged that the estimate we make of the distance of objects considerably remote is rather an act of judgment grounded on experience than of sense. For example, when I perceive a great number of intermediate objects, such as houses, fields, rivers, and the like, which I have experienced to take up a considerable space, I thence form a judgment or conclusion, that the object I see beyond them is at a great distance. Again, when an...
Strona 156 - It is, I think, agreed by all that Distance, of itself and immediately, cannot be seen. For, distance being a line directed endwise to the eye, it projects only one point in the fund of the eye, which point remains invariably the same, whether the distance be longer or shorter.
Strona 165 - From these observations it appears that similar phases of flickering illumination if timed to fall coincidently on conjugate retinal areas do very slightly reinforce each other in sensation, and if timed exactly alternately do very slightly mutually reduce. But the broad outcome of the observations is that so far from bright phases at one eye effacing dark phases at the corresponding spot of the other eye, there is hardly a trace of any such interference.
Strona 375 - If one learns some manual termittent. art, he finds that the incoordinations with which he begins are only gradually eliminated, but finally he learns the combination which is advantageous and from that point on the improvement seems for a time to be very rapid. It is sometimes advantageous in a course of training to give up practice for a time in order that the various elements of the coordination may have an opportunity to readjust themselves and in order that the new efforts at development may...
Strona 339 - Two sections, A and B, from the first thoracic spinal ganglion of a cat. B is from the ganglion which had been electrically stimulated through its nerve for five hours. A, from the corresponding resting ganglion. The shrinkage of the structures connected with the stimulated cells is the most marked general change.
Strona 339 - B is from the ganglion which has been electrically stimulated through its nerve for five hours. A is from a corresponding resting ganglion. The nuclei N of the fatigued cells arc seen to take a darker stain and to be very irregular in outline. The general protoplasm of the cell bodies is also less uniform in density in the fatigued cells. the dendrites is probably a very much more radical change than occurs under the ordinary conditions of sleep. The synapses or interlacing of fibers, which connect...
Strona 253 - Did human mental advance result from the development of language, or did language result from the development of ideas? The only answer to this question is that language and ideational processes developed together and are necessary to each other.
Strona 91 - there have been a few cases in which the same person has been able to observe directly both the normal color sensations and the partially color-blind series." Fortunately for descriptive science, truly : but how fortunate for psychology in Judd's sense? How has the development of red-green vision aided man in the struggle for existence (4) ? or what has man gained by the "unique compromise process "(92) which gives rise to the purple sensation? These and...
Strona 349 - Suggestibility has very frequently been emphasized to the exclusion of the converse fact that the hypnotized subject is quite incapable of subjecting any ideas to critical comparison.
Strona 342 - ... maintained through the nerve centers in the medulla, while the rest of the nervous system is closed to external stimulation and to any well-ordered activities. Dreams as dissociated groups of ideas. One effect of the uncoupling of the various nerve tracts in the organs of the central nervous system above the medulla is that any processes which take place in these higher organs because of strong stimulations, or because of some abnormal excitability in the nervous system, are fleeting and irregular....