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Haptic recognition memory and lateralisation for verbal and nonverbal shapes
Memory ( IF 2.519 ) Pub Date : 2021-07-26 , DOI: 10.1080/09658211.2021.1957938
Polina Stoycheva 1 , Jaakko Kauramäki 1 , Fiona N Newell 2 , Kaisa Tiippana 1
Affiliation  

ABSTRACT

Laterality effects generally refer to an advantage for verbal processing in the left hemisphere and for non-verbal processing in the right hemisphere, and are often demonstrated in memory tasks in vision and audition. In contrast, their role in haptic memory is less understood. In this study, we examined haptic recognition memory and laterality for letters and nonsense shapes. We used both upper and lower case letters, with the latter designed as more complex in shape. Participants performed a recognition memory task with the left and right hand separately. Recognition memory performance (capacity and bias-free d') was higher and response times were faster for upper case letters than for lower case letters and nonsense shapes. The right hand performed best for upper case letters when it performed the task after the left hand. This right hand/left hemisphere advantage appeared for upper case letters, but not lower case letters, which also had a lower memory capacity, probably due to their more complex spatial shape. These findings suggest that verbal laterality effects in haptic memory are not very prominent, which may be due to the haptic verbal stimuli being processed mainly as spatial objects without reaching robust verbal coding into memory.



中文翻译:

语言和非语言形状的触觉识别记忆和侧化

摘要

横向效应通常是指左半球语言处理和右半球非语言处理的优势,通常在视觉和听觉的记忆任务中表现出来。相比之下,它们在触觉记忆中的作用却鲜为人知。在这项研究中,我们检查了字母和无意义形状的触觉识别记忆和侧向性。我们同时使用大写和小写字母,后者设计的形状更复杂。参与者分别用左手和右手执行识别记忆任务。识别记忆性能(容量和无偏差d') 更高,大写字母的响应时间比小写字母和无意义形状的响应时间更快。当右手在左手之后执行任务时,右手对大写字母的表现最佳。这种右手/左半球优势出现在大写字母上,而不是小写字母,小写字母的记忆容量也较低,可能是由于它们的空间形状更复杂。这些发现表明,触觉记忆中的言语侧向效应不是很突出,这可能是由于触觉言语刺激主要被处理为空间对象,而没有达到稳健的言语编码进入记忆。

更新日期:2021-09-13
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