Frequency and length effects of words on fixation durations in Turkish sentence reading


Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Enformatik Enstitüsü, Bilişsel Bilimler Anabilim Dalı, Türkiye

Tezin Onay Tarihi: 2014

Öğrenci: EMİNE EREN

Eş Danışman: DENİZ ZEYREK BOZŞAHİN, CENGİZ ACARTÜRK

Özet:

This thesis mainly examined the effect of frequency and length features of the words on eye movement parameters in reading Turkish sentences. In order to examine these word features, target words were categorized into three; uninflected words, words with short inflectional suffix, -lEr; and words with long inflectional suffixes, -lErdEkilerden. Whether frequency and length of the uninflected stems of the target words affect the fixation durations in reading across (inflectional) suffixation condition was examined. To investigate the impact of these word features, first fixation durations on the target word, sum of the fixation durations in the first pass reading and total sum of gaze durations were analyzed seperately. The results indicated that both frequency and length of the target words (frequecy and length of the uninflected stems) influenced eye movement parameters while reading Turkish sentences. The eye movement measures of gaze durations in first pass reading and total sum of fixation durations indicated that longer fixation durations were seen on the long and low frequency words than the short and high frequency words. However, the first fixation measure analyses in the groups of words with inflectional suffixes showed opposite results for the effect of word length (length of the uninflected stem) that longer words got shorter fixation durations than the shorter words.