Outlines of Physiological Psychology: A Text-book of Mental Science for Academies and Colleges |
Other editions - View all
Outlines of Physiological Psychology. A Text-book of Mental Science for ... George Trumbull Ladd No preview available - 2023 |
Common terms and phrases
activity æsthetical amount animals appear areas bodily body brain called cells central organs cerebellum cerebral centres cerebral cortex cerebral hemispheres cerebrum changes character color color-tones complex condition connected consciousness convolutions cortex dependent electrical empiristic end-organs energy excited exist experience external fact feeling fibres fissure frontal functions gray matter images impulses increase intensity interval irritation kind layer lesions limbs lobe localization mechanism medulla medulla oblongata membrane ment mental phenomena mind molecular motion motor movements muscles muscular sensations nature nerve nerve-cells nerve-commotion nerve-fibres nervous elements nervous substance nervous system object observers occipital lobes optic ovum peculiar perception physiological psychology point of regard posterior posterior horn principle produced psychical psycho-physical reaction-time reflex relations result retina sensation-complexes sense sensory side skin smell so-called spatial spinal cord stimulus structure surface theory tion tone tracts vision visual visual perception Weber's law
Popular passages
Page 95 - The Internal Ear, or Labyrinth. — It is in this marvellously complex organ that the terminal fibrils of the auditory nerves are distributed and the end-organs of hearing are placed. It consists of three parts — the Vestibule, the Semicircular Canals, and the Cochlea.
Page ii - THE DOCTRINE OF SACRED SCRIPTURE : A Critical, Historical, and Dogmatic Inquiry into the Origin and Nature of the Old and New Testaments.
Page 398 - ... (x + 1 : x : : x : 1) — is claimed by some writers to hold true. Intellectual Feelings. — It has already been seen that intellectual elements blend more and more with the causes which determine the character of our feelings, as we pass from the lower and more obviously sensuous to the higher and more distinctively sesthetical.
Page 368 - ... as it were, by the -second, and "apperception" will not take place. As might be expected, it was found in this way, that the " discernment-time," or " apperception-time," depends upon the complexity of the operations required. To recognize three letters at once required about half the time necessary to recognize five or six. With an interval of 0.0048 sec. between the two excitations, the perception of the first was reduced to scarcely a trace of a weak shimmer ; with an interval of 0.0096 sec.,...
Page 385 - Pleasure is the concomitant of the healthy action of any or all of the organs or members supplied with afferent cerebrcspinal nerves, to an extent not exceeding the ordinary powers of reparation possessed by the system.
Page 424 - The amount of activity at any given point in the brain-cortex is the sum of the tendencies of all other points to discharge into it, such tendencies being proportionate (1) to the number of times the excitement of each other point may have accompanied that of the point in question; (2) to the intensity of such excitements; and (3) to the absence of any rival point functionally disconnected with the first point, into which the discharges might be diverted.
Page 421 - But after 1 day the impression retained about £ its original strength ; after 6 days, i ; after 30 days, £. This investigator concluded that the ratio of what is retained to what is forgotten is inversely as the logarithm of the time. Persistence of Certain After-images. — In various cases of strong or repeated impressions, the complete or partial after-images recur persistently for a long time after the impressions have ceased. Prolonged work with the microscope causes the visual images seen...
Page 384 - declares, that " a very considerable number of the facts may be brought under the following principle, namely, that states of pleasure are connected with an increase, and states of pain with an abatement, of some, or all, of the vital functions.