Eye movements and visual word recognition

2007 ◽  
pp. 88-106
Author(s):  
Richard Shillcock
Keyword(s):  
Eye Movements ◽  
Word Recognition ◽  
Lexical Decision ◽  
Visual Word Recognition ◽  
Visual Word ◽  
Single Word ◽  
Frequency Effects ◽  
Normal Reading ◽  
Isolated Word ◽  
The Relationship

This article examines the relationship between eye movements and word recognition, moving from what we know about isolated word recognition to the reading of text. There are clear points of contact between behaviour in laboratory tasks with isolated words and word recognition in text; for instance, Schilling et al. (1998) have shown consistent word frequency effects in naming, lexical decision, and fixation times in silent reading. However, there are also major differences between these two domains. Radach and Kennedy (2004) cite “integration with work on single word recognition” as an issue for future reading research. Equally, though, research on isolated visual word recognition can benefit from a consideration of normal reading; when a word is processed in isolation, its normal context has been replaced by a “null” context. The article concentrates on some of the anatomical and computational principles governing access to the mental lexicon. First, it considers eye movements in reading isolated words and then explores how fixation in word recognition is controlled. Finally, the article discusses the issues raised by binocularity.

scholarly journals Is RoAsT tougher than StEAk?: The effect of case mixing on perception of multi-letter graphemes

Psihologija ◽  
2010 ◽  
Vol 43 (1) ◽  
pp. 103-116 ◽  
Author(s):  
Jelena Havelka ◽  
Clive Frankish
Keyword(s):  
Word Recognition ◽  
Lexical Decision ◽  
Visual Word Recognition ◽  
Word Reading ◽  
Response Times ◽  
Visual Word ◽  
Decision Task ◽  
Response Latencies ◽  
Visual Segmentation ◽  
Word Shape

Case mixing is a technique that is used to investigate the perceptual processes involved in visual word recognition. Two experiments examined the effect of case mixing on lexical decision latencies. The aim of these experiments was to establish whether different case mixing patterns would interact with the process of appropriate visual segmentation and phonological assembly in word reading. In the first experiment, case mixing had a greater effect on response times to words when it led to visual disruption of the multi-letter graphemes (MLGs) as well as the overall word shape (e.g. pLeAd), compared to when it disrupted overall word shape only (e.g. plEAd). A second experiment replicated this finding with words in which MLGs represent either the vowel (e.g. bOaST vs. bOAst) or the consonant sound (e.g. sNaCK vs. sNAcK). These results confirm that case mixing can have different effect depending on the type of orthographic unit that is broken up by the manipulation. They demonstrate that graphemes are units that play an important role in visual word recognition, and that manipulation of their presentation by case mixing will have a significant effect on response latencies to words in a lexical decision task. As such these findings need to be taken into account by the models of visual word recognition.

Dual and Single Route Models for Beginning Readers

2009 ◽  
Vol 217 (3) ◽  
pp. 159-174 ◽  
Author(s):  
Eric Maris ◽  
Rinske de Graaff Stoffers
Keyword(s):  
Word Recognition ◽  
Lexical Decision ◽  
Visual Word Recognition ◽  
Second Step ◽  
Phonological Recoding ◽  
Single Word ◽  
Multinomial Processing Tree ◽  
Single Mechanism ◽  
Dual Route ◽  
Dual Route Model

There has been a lot of attention for the idea that the reading of a single word (visual word recognition) involves a single mechanism only. This mechanism first maps the orthographic input onto a sublexical phonological code via which, in a second step, the lexicon is accessed. This mechanism is called a single route phonological model, and it should be contrasted with a dual route model, which also assumes an orthographic route. This orthographic route maps the orthographic input onto a lexical orthographic code without phonological recoding. In this paper, both the single route phonological and the dual route models were formulated as multinomial processing tree (MPT) models. These two MPT models were applied to the data of two experiments in which the participants (children in Grades 1 and 2) had to give a combined naming and lexical decision response to four types of stimuli (words and three types of nonwords). The dual route model gave a much better explanation of these data than the single route phonological model.

scholarly journals Do ‘blacheap’ and ‘subcheap’ both prime ‘cheap’? An investigation of morphemic status and position in early visual word processing

2018 ◽  
Vol 71 (8) ◽  
pp. 1645-1654 ◽  
Author(s):  
Lauren Heathcote ◽  
Kate Nation ◽  
Anne Castles ◽  
Elisabeth Beyersmann
Keyword(s):  
Word Recognition ◽  
Lexical Decision ◽  
Visual Word Recognition ◽  
Word Processing ◽  
Visual Word ◽  
Early Stages ◽  
Complex Words ◽  
Morphological Relationship ◽  
Prime Target ◽  
Real Complex

Much research suggests that words comprising more than one morpheme are decomposed into morphemes in the early stages of visual word recognition. In the present masked primed lexical decision study, we investigated whether or not decomposition occurs for both prefixed and suffixed nonwords and for nonwords which comprise a stem and a non-morphemic ending. Prime–target relatedness was manipulated in three ways: (1) primes shared a semantically transparent morphological relationship with the target (e.g., subcheap-CHEAP, cheapize-CHEAP); (2) primes comprised targets and non-affixal letter strings (e.g., blacheap-CHEAP, cheapstry-CHEAP); and (3) primes were real, complex words unrelated to the target (e.g., miscall-CHEAP, idealism-CHEAP). Both affixed and non-affixed nonwords significantly facilitated the recognition of their stem targets, suggesting that embedded stems are activated independently of whether they are accompanied by a real affix or a non-affix. There was no difference in priming between stems being embedded in initial and final string positions, indicating that embedded stem activation is position-independent. Finally, more priming was observed in the semantically interpretable affixed condition than in the non-affixed condition, which points to a semantic licensing mechanism during complex novel word processing.

The Effects of Frequency, Repetition and Stimulus Quality in Visual Word Recognition

1984 ◽  
Vol 36 (3) ◽  
pp. 507-518 ◽  
Author(s):  
Dennis Norris
Keyword(s):  
Word Recognition ◽  
Lexical Decision ◽  
Word Frequency ◽  
Visual Word Recognition ◽  
Visual Word ◽  
Stimulus Quality ◽  
Verification Model

This paper describes a lexical decision experiment, which examined the relation between word frequency, repetition and stimulus quality. In contrast to earlier studies (Stanners, Jastrzembski and Westbrook, 1975; Becker and Killion, 1977), frequency and stimulus quality were found to interact. The implications of this result for models of word recognition are discussed within the framework of Becker's verification model.

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