The Origin and Nature of the Emotions: Miscellaneous Papers | ||
Recapitulation
Psychology,—the science of the human soul and its relations,—under the mechanistic theory of life, must receive a new definition. It becomes a science of man's activities as determined by the environmental stimuli of his phylogeny and of his ontogeny.
On this basis we postulate that throughout the history of the race nothing has been lost, but that every experience of the race and of the individual has been retained for the guidance of the individual and of the race; that for the accomplishment of this end there has been evolved through the ages a nerve mechanism of such infinite delicacy and precision that in some unknown manner it can register permanently within itself every impression received in the phylogenetic and ontogenetic experience of the individual; that each of these nerve mechanisms or brain patterns has its own connection with the external world, and that each is
Finally, as for life's origin and life's ultimate end, we are content to say that they are unknown, perhaps unknowable. We know only that living matter, like lifeless matter, has its own place in the cosmic processes; that the gigantic forces which operated to produce a world upon which life could exist, as a logical sequence, when the time was ripe, evolved life; and finally that these cosmic forces are still active, though none can tell what worlds and what races may be the result of their coming activities.
Address delivered before Sigma Xi, Case School of Science, Cleveland, Ohio, May 27, 1913, and published in Science, August 29, 1913.
Control blood negative; no adrenalin present.
Positive adrenalin reaction produced by fright of ten minutes'
duration.
Adrenalin still present, but in lesser amounts under the influence of
the longer period of fright. The glands had probably become partly
exhausted.
Compare the well-stained, clearly defined Purkinje cells in A with the faint traces of the Purkinje cells which are barely visible in B.
The Origin and Nature of the Emotions: Miscellaneous Papers | ||