Category: Science - Biology

The Sense of Taste

THE casual observer would probably feel that any attempt to enumerate and arrange in a logical scheme the infinitude of tastes and flavors would be an impossible task. To him it might seem that nearly everything in the world possessed its own peculiar taste. Such an observer w...

Chapters

1. CHAPTER I

THE casual observer would probably feel that any attempt to enumerate and arrange in a logical scheme the infinitude of tastes and flavors would be an impossible task. To him it...

2. CHAPTER II

IN the case of some of the sensory modes it is possible to arrange the various elementary qualities in a schema or graph, representing in a diagrammatic way their relations to e...

3. CHAPTER III

IN a general way it is well known that exceedingly weak solutions of many substances are sufficient to provoke sensations of taste. It is also known that weak tastes which some...

4. CHAPTER IV

MANY experiments have been undertaken in the effort to measure the inertia or sluggishness of the various senses. Inasmuch as the nervous structure is a physical system set in o...

5. CHAPTER V

THE so-called higher senses are usually differentiated from the lower on the basis of their greater intellectual value. The sense of taste is one of the lower, as compared with...

6. CHAPTER VI

EACH sense mechanism has an arrangement more or less mechanical for modifying the stimulus, and another mechanism which transforms the stimulus into the nerve impulse, that mess...

7. CHAPTER VII

EVER since the doctrine of the specific energy of sensory nerves was presented by Müller, and since modified into the specific energy of sense organs or of cerebral centers, two...

8. CHAPTER VIII

WHEN sapid substances are taken into the mouth as solids, liquids, or gases they either become dissolved in the saliva or mixed with it. The glandular activity, with the resulti...

9. CHAPTER IX

THE structures concerned with the taste sensations develop early in the life of the human embryo. As early as the twelfth day the rapid development of the head end of the embryo...

10. CHAPTER X

THE study of the sense organ of taste in adult human beings consists of an examination of the taste sensations resulting from controlled stimulation of limited parts, supported...

11. CHAPTER XI

IT is a familiar fact that in one way or another and in different degrees to different individuals it is possible to have sensory experiences without the actual presence of thei...

12. CHAPTER XII

DISORDERS of taste are for the most part neither as varied nor as bizarre as the abnormal conditions of the more complex senses. Illusions of taste, hallucinations, and subjecti...

13. CHAPTER XIII

IN considering the function of the sense of taste it is common to dismiss the topic in a summary manner by pointing out the fact, that in its original primitive conditions, at l...

14. CHAPTER XIV

WHEN people are asked to state which are the higher and which the lower senses they feel no hesitation in deciding. When asked to arrange the various senses in an order of merit...