The Characteristics of Visual Perception Attentional Focus in Eye Tracking Experiments of the Elderly

Jongha, Kim

doi:10.14774/jkiid.2020.29.4.035

Cited by 2 publications

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“…Hwang과 Sung ( 2019 실시간 문장처리 연구는 사건관련전위(event-related brain potentials, ERP), 기능적 자기공명영상법(functional magnetic resonance imaging, fMRI), 시선추적(eye-tracking) 등의 다양한 기술 을 활용하여 진행되어 왔다 (Kemmer, Coulson, De Ochoa, & Kutas, 2004;Kim, Sung, Lee, & Sim, 2018;Stine-Morrow, Noh, & Shake, 2010). 이 가운데 시선추적기법은 대상자가 문장을 처리하 는 과정 동안의 시선의 움직임을 추적하여, 대상자가 인지적 처리 를 위해 정보를 획득하고 처리하는 과정을 확인할 수 있다 (Kim, 2020). 이러한 시선추적기법을 활용하여 문장처리 과정을 알아보 는 연구에서는 보통 시각적 자극을 제시하여 문장처리를 위한 맥 락을 제공한다.…”

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Effects of Differential Presentation of Noun Types on Sentence Processing in Elderly Adults: An Eye-tracking Study

Kim¹,

Sung²

2021

Commun Sci Disord

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Objectives: The purpose of this study is to investigate how aging influences sentence processing when noun-phrases are presented differently.Methods: A total of 40 participants participated in the study ranging in age from 19 to 71. All were presented with sentences and pictures under either dative or accusative conditions. After that, they were asked to judge if the sentences were correct or incorrect.Results: First, there were significant differences between the older adults and younger adults in accuracy. The older group showed lower accuracy in the sentence judgment task. Second, there were significant differences between the older adults and younger adults in response time. The older group needed more time due to their lower cognitive resources. They made more errors when accusative noun phrases were provided. Third, the fixation proportion of the target stimulus between regions were significant in both types of dative and accusative noun phrase presentation. The older group showed lower proportions in the last region of the sentence.Conclusion: These results shows that both the elderly and the young gradually deal with the meaning of words through the noun phrase information. However, the elderly showed difficulty in assigning the correct thematic roles by using case-markers, given the lower proportion of fixation in the region where the target stimuli are presented. It is expected that difficulties in the communication process of the elderly will be better understood through this study.

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