INORGANIC RESPONSE--FATIGUE, STAIRCASE, AND MODIFIED RESPONSE

Fatigue in metals--Fatigue under continuous
stimulation--Staircase effect--Reversed responses due to
molecular modification in nerve and in metal, and their
transformation into normal after continuous
stimulation--Increased response after continuous stimulation 118

CHAPTER XV

INORGANIC RESPONSE--RELATION BETWEEN STIMULUS AND
RESPONSE--SUPERPOSITION OF STIMULI

Relation between stimulus and response--Magnetic
analogue--Increase of response with increasing
stimulus--Threshold of response--Superposition of
stimuli--Hysteresis 131

CHAPTER XVI

INORGANIC RESPONSE--EFFECT OF CHEMICAL REAGENTS

Action of chemical reagents--Action of stimulants on
metals--Action of depressants on metals--Effect of 'poisons'
on metals--Opposite effect of large and small doses 139

CHAPTER XVII

ON THE STIMULUS OF LIGHT AND RETINAL CURRENTS

Visual impulse: (1) chemical theory; (2) electrical
theory--Retinal currents--Normal response positive--Inorganic
response under stimulus of light--Typical experiment on the
electrical effect induced by light 148

CHAPTER XVIII

INORGANIC RESPONSE--INFLUENCE OF VARIOUS CONDITIONS ON THE
RESPONSE TO STIMULUS OF LIGHT

Effect of temperature--Effect of increasing length of
exposure--Relation between intensity of light and magnitude
of response--After-oscillation--Abnormal effects: (1)
preliminary negative twitch; (2) reversal of response; (3)
transient positive twitch on cessation of light; (4) decline
and reversal--Resume 158

CHAPTER XIX

VISUAL ANALOGUES

Effect of light of short duration--After-oscillation--Positive
and negative after-images--Binocular alternation of
vision--Period of alternation modified by physical
condition--After-images and their revival--Unconscious visual
impression. 170

CHAPTER XX

GENERAL SURVEY AND CONCLUSION 181

INDEX 193

ILLUSTRATIONS

FIG. PAGE

1. MECHANICAL LEVER RECORDER 3

2. ELECTRIC M