Dendrites and cognition: A negative pilot study in the rat☆
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Signs of a Flynn effect in rodents? Secular differentiation of the manifold of general cognitive ability in laboratory mice (Mus musculus) and Norwegian rats (Rattus norvegicus) over a century—Results from two cross-temporal meta-analyses
2022, IntelligenceCitation Excerpt :Some recent data indicate that GCAs are (to a limited degree) translatable between different species (of, e.g., primates) evaluated using a common behavioral-psychometric assessment framework (for different approaches to addressing this issue, see Kaufman, Reynolds, & Kaufman, 2019; Woodley of Menie & Peñaherrera-Aguirre, 2022). Crinella and Yu (1995) argued that the apparently weak GCA factor in their study of unlesioned rats, relative to Anderson's (1993, 1995) findings of such a factor, may in part be a function of the use of different strains (specifically Long-Evans vs. Sprague-Dawley), controlling for strain (by modeling it as a random effect) did not eliminate heterogeneity in GCA variance in either the mouse or rat experimental populations. Moreover, no direct evidence was found for a significant difference between these two strains when GCA variance was (re)extracted from the relevant correlation matrices (see Fig. 7).7
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This work was supported by the UAB Alzheimer's Disease Center.
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The author wishes to thank Valisa Rutledge for superb technical support.