The Development of Certain Instincts And Habits in Chicks
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Form To test the animals' responses to forms, black cards, cut as previous cards, were used in the regular card-holders of the appar- atus. The cards bore two-dimensional forms above the openings through which a chick had to pass on its way out of the appar- 54 FREDERICK S. BREED atus. That is, forms were cut out of white paper and pasted midway between the two sides and a little below the top of the card. The chicks were first tested with a square and a triangle of equal area. The triangle had... a base of 8.13 cm. and an altitude of 6.35 cm. The square was 5.08 x 5.08 cm. No. 11, a chick that had succeeded in acquiring the black-white habit to the point of making one error in the last twenty trials, reacted in the square-triangle test as shown in table 14.
TABLE 14 Reactions to Form Chick no. 11. Hatched 12/10, '07. Sex, F.
Square -Triangle Series Date Rigiit Wrong A Jan. 31 1 it it 2'.'.'.'..'.'.'.'.'.'.'.'..'..'..'..'.'.'..'.'.'..'..'..'....'. Feb. 1 3 " 3 4 " 4 5 " 5 6 " 6 7 " 7 8 " 8 9 " 10 10 " 11 11 " 12 12 " 13 13 " 14 14 " 15 15 " 17 Not only were the results here purely negative, but one had only to watch the chick to become convinced that the prob- ability of its forming the habit of selecting the square was almost nil.
What to read after The Development of Certain Instincts And Habits in Chicks?
You can find similar books in the "Read Also" column, or choose other free books by Breed, Frederick Stephen, 1876- to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Form To test the animals' responses to forms, black cards, cut as previous cards, were used in the regular card-holders of the appar- atus. The cards bore two-dimensional forms above the openings through which a chick had to pass on its way out of the appar- 54 FREDERICK S. BREED atus. That is, forms were cut out of white paper and pasted midway between the two sides and a little below the top of the card. The chicks were first tested with a square and a triangle of equal area. The triangle had... a base of 8.13 cm. and an altitude of 6.35 cm. The square was 5.08 x 5.08 cm. No. 11, a chick that had succeeded in acquiring the black-white habit to the point of making one error in the last twenty trials, reacted in the square-triangle test as shown in table 14.
TABLE 14 Reactions to Form Chick no. 11. Hatched 12/10, '07. Sex, F.
Square -Triangle Series Date Rigiit Wrong A Jan. 31 1 it it 2'.'.'.'..'.'.'.'.'.'.'.'..'..'..'..'.'.'..'.'.'..'..'..'....'. Feb. 1 3 " 3 4 " 4 5 " 5 6 " 6 7 " 7 8 " 8 9 " 10 10 " 11 11 " 12 12 " 13 13 " 14 14 " 15 15 " 17 Not only were the results here purely negative, but one had only to watch the chick to become convinced that the prob- ability of its forming the habit of selecting the square was almost nil.
What to read after The Development of Certain Instincts And Habits in Chicks?
You can find similar books in the "Read Also" column, or choose other free books by Breed, Frederick Stephen, 1876- to read onlineMoreLess
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