ISSN:
1573-899X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Conclusions 1. Ability to extrapolate was studied in mice with Robertsonian translocations Rb(8,17)1IEM; Rb(9,14)6Bnr; Rb(16,17)7Bnr; Rb(5,19)1Wh; and Rb(6,15)1ALD in their karyotype. 2. Among mice with the Rb(8,17)1IEM translocation the number of correct solutions to the extrapolation problem was significantly higher than the 50% random level; this evidently points to an influence of this chromosomal aberration on the level of elementary reasoning activity. 3. Ability to extrapolate was studied in mice of two sublines selected for large (subline L) and small (subline S) brain weight, and differing significantly (P〈0.001) for this feature. 4. In mice of the S subline the proportion of correct solutions during both first and repeated presentations was significantly above the 50% random level. In generations F3-F10 the proportion of correct solutions achieved by mice of the S subline was significantly (P 〈 0.001) higher than that achieved by mice of the L subline. No significant differences were found in generation F11-F13. No absolute correction is evidently present between brain weight and the level of elementary reasoning activity within the limits of one species. 5. In populations of laboratory mice, unable on the whole to solve this logical problem, there are groups of individuals which possess this ability to a significant degree. 6. Ability to solve an extrapolation problem as a manifestation of elementary reasoning activity in mice is largely hereditarily determined. 7. Selective lines of mice and mice with chromosomal aberrations are a convenient model with which to study the physiological and genetic basis of elementary reasoning activity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01187000
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