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accompanied Amoeba amphipod animal behavior Animal Intelligence animal mind animal's annelid antennae ants appears auditory bees Bethe body Chemical Sense chemical stimulation cilia coelenterates color comparative psychology consciousness Crustacea Daphnia direction discrimination earthworm effect evidence experimental eyes fact filter paper fish food-taking reaction Forel frogs function geotropism gravity hive human insects instinct intensity involve Jennings Jour labyrinth larvae latter learning by experience light Lloyd Morgan mechanical stimulation memory image ment mental method mollusks monkeys move movements Nagel negative reaction nest object observed odor orientation Paramecium perception phototaxis phototropic placed planarian positive reaction possible probably produced Protozoa Psych psychic rats rays react response says sensation quality sense organ sensory side smell sound space perception species spider statocyst statoliths stimulus structure suggests swimming tendency tentacles thinks tion tropism turn vibrations vision visual Wasmann wasps worms Yerkes
Page 24 - In no case may we interpret an action as the outcome of the exercise of a higher psychical faculty, if it can be interpreted as the outcome of the exercise of one which stands lower in the psychological scale, (p.
Page 3 - When the understanding is once stored with these simple ideas, it has the power to repeat, compare, and unite them, even to an almost infinite variety, and so can make at pleasure new complex ideas. But it is not in the power of the most exalted wit or enlarged understanding, by any quickness or variety of thought, to invent or frame one new simple idea in the mind, not taken in by the ways before mentioned; nor can any force of the understanding destroy those that are there...
Page 8 - Dogs get lost hundreds of times and no one ever notices it or sends an account of it to a scientific magazine. But let one find his way from Brooklyn to Yonkers and the fact immediately becomes a circulating anecdote.
Page 9 - ... graves. This did not quite finish the remarkable circumstances attending this funeral of the ants. Some six or seven of the ants had attempted to run off without performing their share of the task of digging ; these were caught and brought back, when they were at once attacked by the body of ants and killed upon the spot. A single grave was quickly dug, and they were all dropped into it.
Page 8 - In a few minutes two of the ants advanced and took up the dead body of one of their comrades ; then two others, and' so on, until all were ready to march. First walked two ants bearing a body, then two without a burden ; then two others with another dead ant, and so on, until the line was extended to about forty pairs, and the procession now moved slowly onwards, followed by an irregular body of about two hundred ants.
Page 14 - I know, indeed, that brutes do many things better than we do, but I am not surprised at it; for that, also, goes to prove that they act by force of nature and by springs, like a clock, which tells better what the hour is than our judgment can inform us.
Page 110 - Having become satisfied on this point, it next darts along that thread till it reaches either the fork itself or a junction of two or more threads, the right one of which it instantly determines as before. If the fork is not removed when the spider has arrived it seems to have the same charm as any fly : for the spider seizes it, embraces it, and runs about on the legs of the fork as often as it is made to sound, never seeming to learn by experience that other things may buzz besides its natural...
Page 30 - By associative memory I mean that mechanism by \ which a stimulus brings about not only the effects which its nature and the specific structure of the irritable organ call for, but by which it brings about also the effects of other stimuli which formerly acted upon the organism almost or quite | simultaneously with the stimulus in question.
Page 13 - And at the outset of our discussion of the former, we are obliged to acknowledge that all psychic interpretation of animal behavior must be on the analogy of human experience. We do not know the meaning of such terms as perception, pleasure, fear, anger, visual sensation, etc., except as these processes form a part of the contents of our own minds. Whether we will or no, we must be anthropomorphic in the notions we form of what takes place in the mind of an animal.
Page 170 - when it chances to cross from the shaded region into the sunlight, it in most cases immediately ceases swimming, turns over and sinks passively to the bottom. But in this case when it again becomes active, it does not move indifferently in any direction as it does when in the shadow; instead it usually turns in such a way as to move back into the shaded region."2 This is precisely what I said and what I meant; I repeat the statement in the light of further observations made during September, 1906....