知觉学习改善老年前期人群感知能力研究

Perceptual Learning Improves Perceptual Ability in Pre-Elderly

摘要: 近十年来，中国老年人群轻度认知障碍逐年增长，而目前的认知干预任务难度较大，收益甚微。本研究采用知觉学习作为认知训练方式，通过视听觉辨别任务，采用2 (组别：实验组、控制组) × 2 (测验时间：前测、后测) × 3 (刺激类型：视觉、听觉、视听觉)的被试间实验设计来评估知觉学习的训练收益。结果发现，进行知觉学习认知训练的人群相比于前测任务，后测任务的正确率得到了显著提高。进一步的竞争模型分析显示，进行知觉学习认知训练的人群的视听整合的峰值更高。

Abstract: In the past decade, the mild cognitive impairment of the elderly population in China has increased year by year, and the current cognitive intervention task is difficult and has little benefit. In this study, perceptual learning was used as a cognitive training method, and the inter-subject experimental design of 2 (group: experimental group, control group), × 2 (test time: pre-test, post-test) ×3 (stimulus type: visual, auditory, audio-visual) was used to evaluate the training benefit of perceptual learning through the audio-visual discrimination task. The results showed that the accuracy of the post-test task was significantly improved compared with the pre-test task in the group of people who underwent perceptual learning cognitive training. In addition, a further comparison of the differences between the probability of audio-visual cumulative distributive functions (CDFs) and race model CDFs showed that the peak of audiovisual integration was higher in the the population undergoing perceptual learning cognitive training.