Abstract
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.
Highlights
Previous studies have shown significant variances in cerebral asymmetry for language processing [26,28], especially when processing a non-fluent or new language [6,29]
Using Xue et al.’s [29] paradigm and a larger sample, Chen et al further showed that the neurofunctional predictors of visual word learning effi
The present study extended these two studies [2,29] by investigating whether pre-training fusiform asymmetry would be predictive of long-term retention of the learned visual words, an outcome that has more practical importance than immediate training effects
Summary
Previous studies have shown significant variances in cerebral asymmetry for language processing [26,28], especially when processing a non-fluent or new language [6,29]. Some researchers found that males show more left-lateralized activation and females show more bilateral activation during language processing [11,15,20]. This suggested that males and females might recruit different optimal neural networks to learn a new script.
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