These observations and surmises have evidently exercised a great influence upon SWEDENBORG’s conception of the function of the cerebral cortex; but they alone could impossibly have aided him in reaching the enlightened standpoint at which he arrived. No, the most determining and decisive factor for him in this question evidently was a great mass of _clinical and pathological observations_ which he had collected and synthesized, namely, symptoms of disturbances of consciousness and sensibility, which had been exhibited by such patients, who, as was shown by post mortem examination, had been injured in the cerebral cortex. And I shall later refer to some of these cases in connection with the consideration of the brain’s motor functions, because these patients nearly always also exhibited motor disturbances. But even here I may quote some of SWEDENBORG’s own words, which will show what importance he attached to these testimonies: ›It is the cerebrum or the cortical substance in which the soul disposes and unfolds its purest and most simple organic forms of activity, and what the cerebrum is, appears from a change of the faculties in some diseases, as in apoplexy, epilepsy, paralysis, etc., likewise in many morbid states of the animal mind in a cerebrum wounded by various accidents;› (›The Brain›, No. 86). And in another place he says: ›If the cerebrum is either inflamed or obstructed, or flaccid, or injured otherwise, the intellectual faculty is unsettled; as in paralysis, melancholy, in cases of delirium, in atrophy, apoplexy, in fevers, and other diseases; nay, the determination of the will also is similarly affected. For each single cortical substance contributes its share to this intellectory, that is, to this organ of the understanding, etc.› (›The Brain›, No. 104, r). All these observations concerning the consequences of injury to the cerebral cortex—and the above-mentioned discoveries regarding the structure of the cerebral substance and the hypotheses concerning the relation of the cerebral cortex and cortical elements to the ›spiritus animalis› and the perceptions,—these _clinical_ and _anatomical experiences taken together_ seem to have led SWEDENBORG to the conviction that the activity of the soul and not least that just now in question, the sensory, had its seat in the cortex of the cerebrum.