CONTENTS

CHAPTER PAGE
Editorial Introduction[vii]
Preface[xiii]
IThe Qualities of Taste
The Taste Manifold—The Classification of Tastes—Taste Blends and Fusions—The Poverty of Taste—Psychological Analysis of the Taste Qualities—Distribution of the Taste Qualities—The Vocabulary of Taste.
[1]
IIThe Organization of the Tastes
System and Organization in Other Senses—Taste Mixtures and Compounds—Compensation, Antagonism, and Neutralization—Contrast Phenomena—After Images of Taste—The Schema of Taste Relations.
[27]
IIIThe Sensitiveness of Taste
Various Measures of Sensitiveness—The Threshold of Taste Sensation—Relative Sensitivity of Taste and Smell—The Discrimination of Tastes—Adaptation and Fatigue—Acquired Tastes—The Early Development of Taste.
[43]
IVTime Relations of Taste Qualities
The Inertia of the Taste Organs—Reaction Time to Taste Stimuli—Determinants of Reaction Time to Taste.
[55]
VThe Sense Organ of Taste
Comparison with other Sense Organs—The Salivary Glands and Their Activity—The Tongue: Its Muscles and Covering Membranes—Classification of Papillæ—The Determination of the Taste Areas.
[60]
VISensory Elements of the Taste Mechanism
Taste Buds and Their General Characteristics—Supporting Cells, Gustatory Cells, and Nerve Filaments—Relations Among the Structures within the Taste Bud—The Sensory Nerves of Taste—The Cerebral Taste Centers.
[78]
VIITaste-Producing Substances
Adequate and Inadequate Stimuli—Adequate Taste Stimuli—Inadequate Taste Stimuli.
[92]
VIIIThe Function of the Taste Mechanism
The Function of Tongue and Salivary Glands—The Function of the Taste Buds.
[103]
IXThe Development of Taste in the Individual
Development Before Birth—Development of Taste in Infancy and Childhood—Taste in the Adult—Structural and Functional Differences Among Individuals—Individual Differences Due to Pathological Changes—Racial Differences in the Structure and Function of the Taste Organs.
[116]
XEvolution of Taste
Sensitivity of the Unicellular Organisms—“The Chemical Sense”—Chemical Sense in Fishes—Land-Dwelling Animals.
[128]
XIGustatory Imagination and Memory
The Nature and Frequency of Mental Images—Mental Images of Taste—Taste in Dreams and in Hallucinations.
[144]
XIIUnusual and Abnormal Taste Experiences
Gustatory Hallucinations and Auræ—Partial and Complete Ageusia—Taste Hallucinations of the Insane—Synæsthesias of Taste—Perversions of Taste.
[151]
XIIIFood and Flavor
The Biological Rôle of Taste—Taste and Digestion—Experimental Evidences—The Function of Taste in the Organic Economy.
[158]
XIVThe Æsthetic Value of Taste
The Higher and Lower Senses—Bounty of Nature and Ecclesiastical Censorship—The Psychophysical Attributes—The Tendency to Adaptation—Spatial Attributes of Taste Qualities—Immediate Affective Value of Taste—Development in the Individual and the Race—The Imaginative Value of Taste—The Non-Social Character of the Lower Senses—The Unsystematic Relations of Taste Qualities—The Motive of Æsthetic Products.
[168]
Index[197]

ILLUSTRATIONS

Diagram showing relations between the taste qualities[40]
Sketch of the tongue[69]
Diagram showing some of the various courses which have been advocated for the taste fibers in man[88]

THE SENSE OF TASTE

CHAPTER I
The Qualities of Taste

The Taste Manifold

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 would also be likely to think it impossible and thankless to attempt to reduce to their necessary limits the various kinds of substance of which this infinitude of things is made up. But the chemist would readily be able to show him that the infinitude of substances consisted, as a matter of fact, only of various forms and combinations of less than one hundred “elements,” and that from these elements one could produce, by appropriate selection and apportionment, any one of the infinitude of substances.