Specific transfer effects following variable priority dual-task training in older adults
Specific transfer effects following variable priority dual-task training in older adults
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DOI：
10.3233/rnn-150581
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发表时间：
2017-01-01
影响因子：
2.8
通讯作者：
Bherer, Louis
中科院分区：
文献类型：
--
作者：
Lussier, Maxime;Bugaiska, Aurelia;Bherer, Louis
目的：过去针对老年人的分散注意力训练研究表明，可变优先级训练（VPT）往往比固定优先级训练（FPT）有更大的改善。然而，目前尚不清楚 VPT 是否会导致更大的转移效应。 方法：在这项研究中，83 名年龄在 55 岁至 65 岁之间的老年人接受了 5 次每次 1 小时的 VPT、FPT 或活性安慰剂疗程。 VPT 和 FPT 受试者在具有可变刺激时间的复杂双任务条件下进行训练，以便在致力于并发任务的注意力优先级方面促进更灵活和自我引导的策略。提供实时个性化反馈以鼓励改进。活跃安慰剂组参加了计算机课程。使用近模态迁移任务和远模态迁移任务来评估迁移效应的泛化。结果：结果表明，在近模态迁移任务中，VPT 比 FPT 诱导的迁移效应明显更大。还观察到在远模态转移任务中 VPT 比 FPT 的转移效应更大的证据。此外，VPT 在转移效应方面优于 FPT 的优势具体在于协调两个并发任务的能力。结论：本研究的结果有助于更好地理解 VPT 注意力训练对转移效应的好处，这是认知训练有效性和相关性的重要结果。
Purpose: Past divided attention training studies in older adults have suggested that variable priority training (VPT) tends to show larger improvement than fixed priority training (FPT). However, it remains unclear whether VPT leads to larger transfer effects.Methods: In this study, eighty-three older adults aged between 55 and 65 received five 1-hour sessions of VPT, FPT or of an active placebo. VPT and FPT subjects trained on a complex dual-task condition with variable stimulus timings in order to promote more flexible and self-guided strategies with regard to attentional priority devoted to the concurrent tasks. Real-time individualized feedback was provided to encourage improvement. The active placebo group attended computer classes. Near and far modality transfer tasks were used to assess the generalization of transfer effects.Results: Results showed that VPT induced significantly larger transfer effects than FPT on a near modality transfer task. Evidence for larger transfer effects in VPT than FPT on a far modality transfer task was also observed. Furthermore, the superiority of VPT on FPT in transfer effects was specific to the ability to coordinate two concurrent tasks.Conclusions: Results of this study help better understand the benefits of VPT attentional training on transfer effects, which is an essential outcome for cognitive training effectiveness and relevancy.