Writing in the air: Facilitative effects of finger writing in older adults

Autoři: Yoshihiro Itaguchi aff001;  Chiharu Yamada aff002;  Kazuyoshi Fukuzawa aff002
Působiště autorů: Department of Computer Science, Shizuoka University, Hamamatsu, Japan aff001;  Department of Psychology, Waseda University, Tokyo, Japan aff002
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
doi: https://doi.org/10.1371/journal.pone.0226832


Kūsho, which refers to a behavior in which one moves the index finger as a substitute for a pen in the air or on a surface, mostly used when trying to recall the shape of a written character or the spelling of a word, has been known to facilitate cognitive task performance among kanji writing-system users. This study investigates whether the facilitative effect of kūsho, the existence of which has been exclusively confirmed in younger adults, is present in old age. Moreover, to further understand the interaction between finger movement and cognitive processing, we analyzed the correlation between the kūsho effect and factors such as age, mini-mental state examination (MMSE) score, and number of years of education. The kūsho effect was assessed by a task where participants mentally assembled a set of kanji subparts to form an actual character. The results showed a significant facilitative effect of kūsho and a strong negative correlation between kūsho effect and education. This study confirms the benefits of finger movement for solving cognitive tasks involving visual processing of written language among older adults and suggests the kūsho effect may be mediated by education.

Klíčová slova:

Behavior – Cognition – Cognitive impairment – Elderly – Fingers – Language – Vision


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