Evidence for general cognitive ability (g) in heterogeneous stock mice and an analysis of potential confounds

@article{Galsworthy2002EvidenceFG,
  title={Evidence for general cognitive ability (g) in heterogeneous stock mice and an analysis of potential confounds},
  author={Michael J. Galsworthy and Jose Luis Paya-Cano and Santiago Monle{\'o}n and Robert Plomin},
  journal={Genes},
  year={2002},
  volume={1}
}
The heterogeneous stock (HS) is a genetically outbred line of mice established more than 30 years ago from an 8‐way cross of C57BL/6, BALB/c, RIII, AKR, DBA/2, I, A/J and C3H inbred mouse strains. The present study compared the performance of 40 HS mice across a battery of diverse cognitive tasks under a variety of motivations. Indices of emotionality were also included in order to assess their influence on performance. All measures of ability loaded positively on an unrotated first principal… 
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