Mirror invariance or generalisation is the ability to recognise objects as being the same regardless of their spatial orientation. However, when, for example, learning to read Roman script, children need to hone these skills so that they can readily discriminate between mirror letters such as b/d or p/b. Korean Hangul makes a particularly interesting comparison as it has both lateral and vertical perceptually similar mirror letter pairs (i.e., ㅏㅓ, ㅑㅕ, ㅗㅜ, ㅛㅠ). In the current study, we investigated the mirror generalisation effect in native readers of Korean Hangul. We used a similar negative priming paradigm as used by (Ahr et al., Brain and Cognition 117:1–8, 2017) with Roman script readers. In contrast to their findings, we did not find evidence of negative priming due to either lateral (e.g., ㅏ + ㅓ) or vertical (e.g., ㅗ + ㅜ) mirror letter primes in Korean readers. One explanation for these results is that adult readers of Korean Hangul may not experience mirror invariance to the same extent as Roman script readers due to script-specific characteristics. Thus, learning to read this distinctive script may result in readers being less sensitive to mirror reversals than Roman script readers.

镜像不变性或泛化是能够将对象识别为相同的能力，而不管其空间方向如何。但是，例如，在学习阅读罗马文字时，孩子们需要磨练这些技能，以便他们能够轻松地区分镜像字母，例如 b/d 或 p/b。韩文进行了特别有趣的比较，因为它具有横向和纵向感知相似的镜像字母对（即，ㅏㅓ、ㅑㅕ、ㅗㅜ、ㅛㅠ）。在目前的研究中，我们调查了韩文母语读者的镜像泛化效应。我们使用了与罗马脚本阅读器（Ahr 等人，Brain and Cognition 117:1-8, 2017）类似的负启动范式。与他们的发现相反，我们没有发现由于横向（例如，ㅏ + ㅓ）或垂直（例如，ㅗ + ㅜ) 韩国读者中的镜像字母素数。对这些结果的一种解释是，由于特定于脚本的特征，韩国韩文的成年读者可能不会像罗马脚本读者那样体验镜像不变性。因此，学习阅读这种独特的文字可能会导致读者对镜像反转的敏感度低于罗马文字阅读者。