Word scanning in native and non-native languages: insights into reading with declined accommodation

Wataru Teramoto, Shinji Kawano, Shuji Mori, Kaoru Sekiyama

Research output: Contribution to journalArticlepeer-review


This study investigated the effects of declined accommodation on reading performance in non-native and native languages. Eighteen native Japanese speakers participated: eight presbyopes and ten non-presbyopes. In the experiment, participants were asked to scan, or sequentially read six-word items presented in two-line texts, identify a non-word target as quickly as possible, and indicate its location. In addition to the participant type (presbyopes/non-presbyopes) and language of the reading material (Japanese/English), viewing distance (35 cm/70 cm) and contrast (18%/100%) were manipulated. The results showed that the presbyopes exhibited worse reading performance than the non-presbyopes at closer distances irrespective of the language. Notably, the inferiority of the presbyopes’ reading performance was more pronounced when they read in a non-native language than in their native language. It should be noted that differences in reading performance between the presbyopes and non-presbyopes were subtle for high-contrast words at longer viewing distances, indicating that age- or cohort-related perceptual, motor, and cognitive differences were almost negligible, but accommodation mattered. These results suggest that the effect of accommodation decline is influenced by the language of the reading material.

Original languageEnglish
Pages (from-to)2411-2421
Number of pages11
JournalExperimental Brain Research
Issue number9
Publication statusPublished - Sept 1 2019

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)


Dive into the research topics of 'Word scanning in native and non-native languages: insights into reading with declined accommodation'. Together they form a unique fingerprint.

Cite this