Reading vertically and horizontally mirrored text: An eye movement investigation.

This study examined the cognitive processes involved in reading vertically and horizontally mirrored text. We tracked participants' eye movements while they were reading the Potsdam Sentence Corpus which consists of 144 sentences with target words that are manipulated for length and frequency. Sentences were presented in three different conditions: In the normal condition, text was presented with upright letters, in the vertical condition, each letter was flipped around its vertical (left-right) axis while in the horizontal condition, letters were flipped around their horizontal (up-down) axis. Results show that reading was slowed down in both mirror conditions and that horizontal mirroring was particularly disruptive. In both conditions, we found larger effects of word length than in the normal condition indicating that participants read the sentences more serially and effortfully. Similarly, frequency effects were larger in both mirror conditions in later reading measures (gaze duration, go-past time, and total reading time) and particularly pronounced in the horizontal condition. This indicates that reading mirrored script involves a late checking mechanism that is particularly important for reading a horizontally mirrored script. Together, our findings demonstrate that mirroring affects both early visual identification and later linguistic processes.

Priming effects in reading words with vertically and horizontally mirrored letters.

We conducted two masked priming experiments to examine how the orthographic system processes words with mirrored letters. In both experiments, four different primes were used: an identity prime, an unrelated control prime, and two mirror-primes in which letters were either mirrored at their vertical or horizontal axis. Task was varied between experiments: In Experiment 1, we used a lexical decision task, and in Experiment 2, we used a cross-case same-different match task. We expected to see priming effects in both mirror-conditions with stronger effects in the vertically than in the horizontally mirrored letters. In the lexical decision task, we observed only vertical priming effects for words, whereas in the same-different task, priming effects were present in both mirror-conditions and for both words and non-words. We discuss the implications of our findings for extant models of orthographic processing.

Expanding horizons of cross-linguistic research on reading: The Multilingual Eye-movement Corpus (MECO).

Scientific studies of language behavior need to grapple with a large diversity of languages in the world and, for reading, a further variability in writing systems. Yet, the ability to form meaningful theories of reading is contingent on the availability of cross-linguistic behavioral data. This paper offers new insights into aspects of reading behavior that are shared and those that vary systematically across languages through an investigation of eye-tracking data from 13 languages recorded during text reading. We begin with reporting a bibliometric analysis of eye-tracking studies showing that the current empirical base is insufficient for cross-linguistic comparisons. We respond to this empirical lacuna by presenting the Multilingual Eye-Movement Corpus (MECO), the product of an international multi-lab collaboration. We examine which behavioral indices differentiate between reading in written languages, and which measures are stable across languages. One of the findings is that readers of different languages vary considerably in their skipping rate (i.e., the likelihood of not fixating on a word even once) and that this variability is explained by cross-linguistic differences in word length distributions. In contrast, if readers do not skip a word, they tend to spend a similar average time viewing it. We outline the implications of these findings for theories of reading. We also describe prospective uses of the publicly available MECO data, and its further development plans.

Transposed and substituted letter effects across reading development: A longitudinal study.

Reading development involves several changes in orthographic processing. A key question is, "how does the coding of letters develops in children learning to read?" Masked priming effects of transposition and substitution primes have been taken to index the importance of letter position and identity coding. Somewhat contradicting results for developing readers have led to opposing theories. Here, we present new evidence from a large longitudinal study with over 100 children from grade 2 to 4. We investigate three different issues concerning transposition and substitution priming: (a) comparing priming both against an all-different and an identity baseline, (b) testing priming effects for nonword targets, and (c) taking into account interindividual differences in orthographic knowledge. The analyses of the longitudinal data show, respectively, (a) an increase of priming effects over development in comparison to both baselines, (b) identity priming for nonword targets in the elementary school years, and (c) an additional impact of orthographic knowledge on priming effects for word, but not nonword, targets that is similar to the effect of grade. Taken together, our examination suggests that letter identity is coded relatively strictly, whereas letter position is coded relatively flexibly already early in reading development for words, but not for nonwords. We discuss how this pattern fits with different developmental models of orthographic processing. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Eye movements of children and adults reading in three different orthographies.

In this study, we investigated developmental aspects of eye movements during reading of three languages (English, German, and Finnish) that vary widely in their orthographic complexity and predictability. Grapheme-phoneme correspondence rules are rather complex in English and German but relatively simple in Finnish. Despite their differences in complexity, the rules in German and Finnish are highly predictable, whereas English has many exceptions. Comparing eye movement development in these three languages allows us to investigate whether orthographic complexity and predictability have separate effects on eye movement development. Three groups of children, matched on years of reading instruction, along with a group of proficient adult readers in each language were tested. All participants read stimulus materials that were carefully translated and back-translated across all three languages. The length and frequency of 48 target words were manipulated experimentally within the stimulus set. For children, word length effects were stronger in Finnish and German than in English. In addition, in English effects of word frequency were weaker and only present for short words. Generally, English children showed a qualitatively different reading pattern, while German and Finnish children's reading behavior was rather similar. These results indicate that the predictability of an orthographic system is more important than its complexity for children's reading development. Adults' reading behavior, in contrast, was remarkably similar across languages. Our results demonstrate that eye movements are sensitive to language-specific features in children's reading, but become more homogenous as reading skill matures. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

The dynamics of morphological processing in developing readers: A cross-linguistic masked priming study.

Empirical evidence from masked priming research shows that skilled readers can rapidly identify morphological structure in written language. However, comparatively little is known about how and when this skill is acquired in children. The current work investigated the developmental trajectory of morphological processing in a 2-year longitudinal study involving two large cohorts of German and French primary school children. The masked priming paradigm was used within an experimental design that allowed us to dissociate effects of (a) nonmorphological embedded word activation, (b) morpho-orthographic decomposition, and (c) morpho-semantics. Four priming conditions were used: affixed word (farmer-FARM), affixed nonword (farmity-FARM), nonaffixed nonword (farmald-FARM), and unrelated control (workald-FARM). The results revealed robust embedded word priming effects across both languages. However, morpho-orthographic and morpho-semantic effects were evident only in the French sample. These findings are discussed in the context of a theoretical framework that specifies the distinct roles played by embedded words and affixes, their distinct developmental trajectories, and how the intrinsic linguistic properties of a given language may affect morphological processing.

Sentiment Analysis of Children and Youth Literature: Is There a Pollyanna Effect?

If the words of natural human language possess a universal positivity bias, as assumed by Boucher and Osgood's (1969) famous Pollyanna hypothesis and computationally confirmed for large text corpora in several languages (Dodds et al., 2015), then children and youth literature (CYL) should also show a Pollyanna effect. Here we tested this prediction applying an unsupervised vector space model-based sentiment analysis tool called SentiArt (Jacobs, 2019) to two CYL corpora, one in English (372 books) and one in German (500 books). Pitching our analysis at the sentence level, and assessing semantic as well as lexico-grammatical information, both corpora show the Pollyanna effect and thus add further evidence to the universality hypothesis. The results of our multivariate sentiment analyses provide interesting testable predictions for future scientific studies of literature.

Context facilitation in text reading: A study of children's eye movements.

Words are seldom read in isolation. Predicting or anticipating upcoming words in a text, based on the context in which they are read, is an important aspect of efficient language processing. In sentence reading, words with congruent preceding context have been shown to be processed faster than words read in neutral or incongruous contexts. The onset of contextual facilitation effects is found very early in the first-pass-reading eye-movement and electroencephalogram (EEG) measures of skilled adult readers. However, the effect of contextual facilitation on children's eye movements during reading remains largely unexplored. To fill this gap, we tracked children's and adults' eye movements while reading stories with embedded words that were either strongly or weakly related to a clear narrative theme. Our central finding is that children showed late contextual facilitation effects during text reading as opposed to both early and late facilitation effects found in skilled adult readers. Contextual constraint had a similar effect on children's and adults' initiation of regressive saccades, whereas children invested more time in rereading relative to adults after encountering weakly contextually constrained words. Quantile regression analyses revealed that contextual facilitation effects had an early onset in adults' first-pass reading, whereas they only had a late onset in children's gaze durations. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Double-letter processing in developmental and skilled handwriting production: Evidence from kinematics.

In this study, we investigated the effects of double-letter processing on handwriting production in beginning and skilled writers of German. One hundred and thirty-seven children from Grades 2 and 3 and 31 adult participants were asked to copy words with double consonants (e.g., "Kanne") and matched words without double consonants (e.g., "Kante") from a computer screen onto a pen tablet, while their handwriting was recorded with high spatio-temporal resolution. Handwriting productions were analysed in terms of Reading Duration, Writing Onset Duration, and Letter Duration at the letter positions preceding or forming the onset of the corresponding consonant clusters. Our results showed that second graders take less time to initiate writing words with double consonants than words without double consonants, while both second and third graders take less time to read words with double consonants than words without double consonants. Critically, although second and third graders write down a letter faster when it corresponds to the first letter of a double-letter unit than a consonant cluster, it is the other way around for adults. We interpret these findings within extant theories of handwriting production and offer an explanation for the different nature of the effects observed in beginning and skilled writers.

Orthographic consistency influences morphological processing in reading aloud: Evidence from a cross-linguistic study.

The present study investigated whether morphological processing in reading is influenced by the orthographic consistency of a language or its morphological complexity. Developing readers in Grade 3 and skilled adult readers participated in a reading aloud task in four alphabetic orthographies (English, French, German, Italian), which differ in terms of both orthographic consistency and morphological complexity. English is the least consistent, in terms of its spelling-to-sound relationships, as well as the most morphologically sparse, compared to the other three. Two opposing hypotheses were formulated. If orthographic consistency modulated the use of morphology in reading, readers of English should show more robust morphological processing than readers of the other three languages, because morphological units increase the reliability of spelling-to-sound mappings in the English language. In contrast, if the use of morphology in reading depended on the morphological complexity of a language, readers of French, German, and Italian should process morphological units in printed letter strings more efficiently than readers of English. Both developing and skilled readers of English showed greater morphological processing than readers of the other three languages. These results support the idea that the orthographic consistency of a language, rather than its morphological complexity, influences the extent to which morphology is used during reading. We explain our findings within the remit of extant theories of reading acquisition and outline their theoretical and educational implications.

The repeated name penalty effect in children's natural reading: Evidence from eye tracking.

We report data from an eye tracking experiment on the repeated name penalty effect in 9-year-old children and young adults. The repeated name penalty effect is informative for the study of children's reading because it allows conclusions about children's ability to direct attention to discourse-level processing cues during reading. We presented children and adults simple three-sentence stories with a single referent, which was referred to by an anaphor-either a pronoun or a repeated name-downstream in the text. The anaphor was either near or far from the antecedent. We found a repeated name penalty effect in early processing for children as well as adults, suggesting that beginning readers are already susceptible to discourse-level expectations of anaphora during reading. Furthermore, children's reading was more influenced by the distance of anaphor and antecedent than adults', which we attribute to differences in reading fluency and the resulting cognitive load during reading.

Morphological processing in single-word and sentence reading.

Research on morphological processing has been mainly conducted in the single-word reading domain using the lexical-decision task. Similar research in the sentence reading domain has been conducted using eye-tracking techniques, yet the experimental paradigms used in each domain are not directly comparable. In the present study, we investigated morphological processing in single-word reading using the masked priming paradigm (Experiments 1a, 1b, 3), and in sentence reading using the fast priming paradigm in eye tracking (Experiment 2). The study was conducted in German using the same prefixed and suffixed items in both tasks. All experiments yielded an identical pattern of results, indicating early processing of the embedded stems, independently of whether these stems were combined with a prefix, a suffix, or a nonmorphological letter sequence. We interpret our findings in relation to previous results in the literature and discuss their implications for reading research both in the single-word and sentence-reading domains. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Comparing length and frequency effects in children across modalities.

Although it is well established that beginning readers rely heavily on phonological decoding, the overlap of the phonological pathways used in visual and auditory word recognition is not clear. Especially in transparent languages, phonological reading could use the same pathways as spoken word processing. In the present study, we report a direct comparison of lexical decision performance in the visual and auditory modality in beginning readers of a transparent language. Using lexical decision, we examine how marker effects of length and frequency differ in the two modalities and how these differences are modulated by reading ability. The results show that both frequency and length effects are stronger in the visual modality, and the differences in length effects between modalities are more pronounced for poorer readers than for better readers. This suggests that visual word recognition in beginning readers of a transparent language initially is based on phonological decoding and subsequent matching in the phonological lexicon, especially for poor readers. However, some orthographic processing seems to be involved already. We claim that the relative contribution of the phonological and orthographic route in beginning readers can be measured by the differences in marker effects between auditory and visual lexical decision.

Syllabic processing in handwritten word production in German children and adults.

Syllables are thought to be processing units in handwritten word production. Yet, little is known about whether the orthographic characteristics of different languages influence syllabic processing during handwriting, which is critical for the evaluation and further development of extant models of handwritten language production. In the present study, we manipulated syllabic ambiguity, a characteristic of the German language, to investigate the role of syllables in handwritten word production in German. Forty-four 10 to 12-year-old children and fourteen adults were asked to write on pen tablets five-letter disyllabic words that varied in terms of their syllabic ambiguity, while their handwriting was recorded with high spatiotemporal resolution. Productions were analyzed in terms of Mean Stroke Duration (MSD) and Writing Onset Duration (WOD). Increased MSD at syllable boundaries was observed across conditions for both children and adults. There was no difference in WOD across conditions. Our findings offer support for the idea that syllables are functional units in handwriting production in German and motivate the further development of the spelling module in models of handwritten language production.

Compound reading in German: Effects of constituent frequency and whole-word frequency in children and adults.

Current models of morphological processing differ in their assumptions about the recognition of compound words. The relative contribution of the first and second constituent and the whole-word remains unsolved. Particularly for beginning readers, the first constituent might have a privileged role attributable to more sequential decoding strategies. In a series of lexical decision experiments, the influence of constituent and whole-word frequencies on compound recognition was examined in German developing readers as well as adults. Results showed that whole-word and first constituent frequency interactively influenced response times in children. For adults, an effect of whole-word frequency only was obtained for the children's stimuli set, and noninteracting effects of whole-word frequency and first constituent frequency were found when using adult frequency measures. Together, the results suggest that developing readers already decompose compounds and that hybrid interactive models of morphological processing are most suitable to explain compound recognition across development. The applicability of amorphous models is also discussed. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Orthographic Networks in the Developing Mental Lexicon. Insights From Graph Theory and Implications for the Study of Language Processing.

In this study, we examine the development of orthographic networks in the mental lexicon using graph theory. According to this view, words are represented by nodes in a network and connected as a function of their orthographic similarity. With a sampling approach based on a language corpus for German school children, we were able to simulate lexical development for children from Grade 1-8. By sampling different lexicon sizes from the corpus, we were able to analyze the content of the orthographic lexicon at different time points and examined network characteristics using graph theory. Results show that, similar to semantic and phonological networks, orthographic networks possess small-word characteristics defined by short average path lengths between nodes and strong local clustering. Moreover, the interconnectivity of the network decreases with growth. Implications for the study of the effect of network measures on language processing are discussed.

Individual differences in children's pronoun processing during reading: Detection of incongruence is associated with higher reading fluency and more regressions.

In two eye tracking experiments, we tested fourth graders' and adults' sensitivity to gender feature mismatches during reading of pronouns and their susceptibility to interference of feature-matching entities in the sentence. In Experiment 1, we showed children and adults two-phrase sentences such as "Leon{m}/Lisa{f} shooed away the sparrow{m}/the seagull{f} and then he{m} ate the tasty sandwich." Eye tracking measures showed no qualitative differences between children's and adults' processing of the pronouns. Both age groups showed longer gaze durations on subject mismatching than on matching pronouns, and there was no evidence of interference of a gender-matching object. Strikingly, in contrast to the adults, not all fourth graders reported detection of the subject gender mismatch. In Experiment 2, we replicated earlier results with a larger sample of children (N = 75) and found that only half of the fourth graders detected the gender mismatch during reading. The detectors' reading pattern at the pronoun differed from that of the non-detectors. Children who reported detection of the mismatch showed a reading pattern more similar to the adults. Children who did not report detection of the mismatch had comparably slower gaze durations and were less likely to make regressions directly at the pronoun. We conclude that children who read more fluently use their available processing resources to immediately repair grammatical inconsistencies encountered in a text.

The development of wrap-up processes in text reading: A study of children's eye movements.

Reading comprehension is the product of constructing a coherent mental model of a text. Although some of the processes that are necessary to construct such a mental model are executed incrementally, others are deferred to the end of the clause or sentence, where integration processing is wrapped up before the reader progresses further in the text. In this longitudinal study of 65 German-speaking children across Grades 2, 3, and 4, we investigated the development of wrap-up processes at clause and sentence boundaries by tracking the children's eye movements while they read age-appropriate texts. Our central finding was that children in Grade 2 showed strong wrap-up effects that then slowly decreased across school grades. Children in Grades 3 and 4 also increasingly used clause and sentence boundaries to initiate regressions and rereading. Finally, children in Grade 2 were shown to be significantly disrupted in their reading at line breaks, which are inherent in continuous text. This disruption decreased as the children progressed to Grades 3 and 4. Overall, our results show that children exhibit an adultlike pattern of wrap-up effects by the time they reach Grade 4. We discuss this developmental trajectory in relation to models of text processing and mechanisms of eye-movement control. (PsycINFO Database Record

Verification of nonwords: The baseword frequency effect in children's pseudohomophone reading.

In this study, we investigated the baseword frequency effect in children and its implications for models of visual word recognition. The baseword frequency effect reflects the finding that response latencies in the lexical decision task to nonwords derived from high-frequency basewords (e.g., GREAN derived from GREEN) are shorter than for those derived from low-frequency basewords (e.g., SLEAT derived from SLEET). Importantly, the baseword frequency effect presents a challenge to current activation-based models of visual word recognition. One explanation for this effect is that the orthographic representations of high-frequency basewords are easier to access. This allows a quick progression to a verification stage in which the exact spelling of a stimulus is checked, upon which the lexicality decision is then based. The main goal of this study was to investigate whether such a verification mechanism is specifically modulated by the quality of the orthographic lexicon. We tested whether the baseword frequency effect was evident in children's lexical decisions to pseudohomophones (PsH) and whether verification accuracy varied as a function of children's orthographic knowledge. The baseword frequency effect in response latency was observed in both German-speaking adults and children. Children's spelling skills significantly influenced the accuracy of the verification stage in their responses to PsH. These findings imply that verification is an integral part of word reading and thus should be included in computational models of visual word recognition.

The Developmental Lexicon Project: A behavioral database to investigate visual word recognition across the lifespan.

With the Developmental Lexicon Project (DeveL), we present a large-scale study that was conducted to collect data on visual word recognition in German across the lifespan. A total of 800 children from Grades 1 to 6, as well as two groups of younger and older adults, participated in the study and completed a lexical decision and a naming task. We provide a database for 1,152 German words, comprising behavioral data from seven different stages of reading development, along with sublexical and lexical characteristics for all stimuli. The present article describes our motivation for this project, explains the methods we used to collect the data, and reports analyses on the reliability of our results. In addition, we explored developmental changes in three marker effects in psycholinguistic research: word length, word frequency, and orthographic similarity. The database is available online.