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临床表现 临床表现

Sergio Grueso1, Gonzalo Sánchez-Benavides2,3, Oriol Grau-Rivera2,3

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概括

在第二语言的高熟练程度,无论收购年龄,提高认知功能,如非语言推理和处理速度. 这种双语优势有利于非语言技能,而不是口头记忆.

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科学领域:

  • 神经科学是一个神经科学.
  • 认知心理学 认知心理学
  • 语言学的语言学.

背景情况:

  • 双语被认为是一种认知储备因素,但它对认知衰老和痴呆症延迟的影响仍在争论中.
  • 了解哪种类型的双语体验最有效地减轻与年龄相关的认知衰退对于痴呆症预防策略至关重要.

研究的目的:

  • 调查第二语言学习年龄和熟练程度对老年人认知表现的影响.
  • 为了比较不同双语个人资料的认知结果,包括早期与晚期的获取以及高与低的熟练程度.

主要方法:

  • 从ALFA研究中分析了2502名没有受损的成年人 (44-74岁) 的认知表现.
  • 参与者被分为早期高熟练,晚期高熟练和晚期低熟练的双语群体,根据学习年龄和西班牙语 (L1) 和加泰罗尼亚语 (L2) 的熟练程度.
  • 对年龄,教育,性别和其他认知储备因素进行统计分析.

主要成果:

  • 高熟练的双语者 (早期和晚期) 在非语言推理和处理速度方面明显优于晚期低熟练的双语者.
  • 早期高熟练双语者在视觉空间处理,工作记忆和注意力方面比晚期低熟练双语者更有优势.
  • 在各组的一般认知衰退 (MMSE) 或情节性口语记忆方面没有发现显著差异.

结论:

  • 高水平的第二语言 (L2) 熟练程度和积极的L1-L2使用与更好的认知表现有关,而不依赖于获取年龄 (AoA).
  • 双语的认知益处似乎集中在非语言功能上,对口头情节性记忆或词汇检索没有重大影响.