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Sex-dependent neurofunctional predictors of long-term maintenance of visual word learning.

  • Author(s): Dong, Qi
  • Mei, Leilei
  • Xue, Gui
  • Chen, Chuansheng
  • Li, Tian
  • Xue, Feng
  • Huang, Shizhi
  • et al.

A previous study has revealed sex-dependent neurofunctional predictors of visual word learning [C. Chen, G. Xue, Q. Dong, Z. Jin, T. Li, F. Xue, L. Zhao, Y. Guo, Sex determines the neurofunctional predictors of visual word learning, Neuropsychologia 45 (2007) 741-747]. The present study aimed to extend that study to investigate sex-dependent neurofunctional predictors of long-term maintenance. Twenty-three Chinese college students trained in the previous study were followed up twice: immediately (T1) and 6 months after the training (T2). At both T1 and T2, subjects were tested with the simultaneously presented same-different judgment task. Compared with the T1 performance, subjects (both males and females) showed a small but significant amount of forgetting (i.e., longer reaction times) at T2. Consistent with our hypothesis, males' performance at both T1 and T2 was predicted by the pre-training left-lateralized fusiform activation, whereas females' performance was predicted by symmetrical bilateral fusiform activation.

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