The importance of vowel diacritics for reading in Hebrew: What can be learned from readers with prelingual deafness?

This study investigates the importance of voweldiacritics for the reading of Hebrew inindividuals with different levels ofphonological control. A paradigm calling forwritten ordered-recall of 12 lists of 8consecutively displayed Hebrew nouns was usedas a test tool. Item presentation andbetween-item interval were computer-controlled.Half of the nouns on the lists were presentedwith vowel diacritics designating their vowels.The remaining nouns appeared with their voweldiacritics removed. Thirty-nine hearingstudents (mean grade 6.5) and twenty-seven students withprelingual deafness (mean grade 6.9)participated in the experiment. Analyses of thegroups' recall rate, recall-order accuracy, andintrusion error rate indicate that, overall,adding vowel diacritics had a facilitatingeffect on the participants' quantitative andqualitative STM performance. Fine-tunedpost-hoc examinations further suggest thatproviding vowel diacritics may be particularlyworthwhile for Hebrew readers with impoverishedreading skills. These findings are discussedwith regard to their implications for thereading of Hebrew.     

The contribution of morphological awareness to reading comprehension in early stages of reading

The contribution of morphological awareness to reading comprehension in Hebrew was studied in 298 second grade students who practiced two types of inflections, plural and possessive. Reading tasks at the beginning and end of the school year indicated that all improved on all tests in that period. Orthographic word recognition and morphological awareness predicted reading comprehension at the end of year. Students with low (LPD) and high (HPD) phonological decoding skills clearly differed qualitatively in reading comprehension. In the HPD students it was predicted by awareness of possessive inflections; in the LPD students it was predicted by orthographic word recognition ability. The results highlight the importance of examining the different components of morphological awareness in readers with different levels of phonological decoding ability.     

The role of vowel signs in Hebrew: Beyond word recognition

After third grade of elementary school, native Hebrew speakers in Israel gradually become expert in reading two kinds of writing systems: the one they start with that contains signs for every phoneme of the spoken language, and another, to which they are steadily introduced, beginning with the second grade, which omits most vowels, together with few consonantal distinctions. Earlier studies indicate that single voweled words are read faster than unvoweled words, particularly in a naming task. This study examined another possible contribution of vowel signs in reading Hebrew: Its effect on memory and comprehension. It was assumed that if subvocalization facilitates memory of words while reading, and if vowel signs facilitate phonological processing, as is perhaps the case in naming tasks, then vowelization may intensify the processing of the articulatory loop and this should improve memory and comprehension. Our first two experiments assessed the contribution of vowel signs to the memory of word lists in either recognition memory or word recall tasks. The third experiment examined the contribution of vowel signs to the reading of connected texts. We found that vowel signs speeded up recognition memory of words in third graders, and improved the recall of words printed in the context of mixed lists in sixth graders. We also found that vowelization improved memory and comprehension of some prose texts.     

Reading Difficulty Characteristics in Dyslexic and Hearing-impaired Students

This study examines reading difficulty characteristics in Hebrew in three reading-impaired populations. Two are groups of dyslexics: 100 readers with impaired auditory perception and 100 readers with impaired visual perception. The third group comprises 61 readers with deep/severe hearing impairment. All were elementary schools students in the second to sixth grades. The subjects were tested with a conventional Hebrew reading test. It examined types of reading errors (e.g. changes of phonetic structure or word content), self-correction in reading, reading speed, sequential/holistic reading, the effect of reading texts with and without the Hebrew diacritical vowel signs ('punctuation'), and the effect of meaningful or meaningless text material on the amount of reading errors. The literature describes distinctions between various kinds of reading disability related to auditory impairment and visual perception, and the definition of dyslexia as being one category or including sub-groups. Our research hypothesis was that similar characteristics of reading difficulties would be found amongst auditory perception-impaired students and hearing-impaired students, and that they would differ from those of students with impaired visual perception. Our findings support this hypothesis. Many of the sub-tests revealed similarity in the reading difficulties between the hearing impaired students and those with impaired auditory perception versus the visually impaired. An unexpected finding revealed that fourth grade students in all the groups were a special sub-group in each group. These findings suggest, in accordance with a major research approach, that dyslexia should be defined in terms of dyslexia sub-groups rather than as a single category.     

Phonemic and graphemic consistency: Effects on decoding for German and American children

Speed, accuracy, and types of errors in decoding lists of words and pseudo words and performance in two phonemic awareness tasks were assessed for German and American children in the first and second grades. German children were significantly better than American children only in pseudo word decoding measures across grades. Between group analyses showed that American children committed more vowel and word substitution errors in both decoding accuracy tasks than German children. Word substitution errors were more likely in word decoding than in pseudo word decoding for children in both languages. Within group analyses indicate that variance in decoding errors and speed accounted for by word substitution versus nonword and vowel versus consonant errors differed dependent on grade and whether real or pseudo words were read. Results suggest successful reading in English depends upon more complex grapheme to phoneme correspondence rules than does reading in German.     

Predicting Foreign Language Reading Achievement in Elementary School Students

This study examined whether factors affecting first language reading acquisition also affect English Foreign Language (EFL) reading acquisition. Hebrew (L1) and EFL reading related measures were administrated to 145 fourth graders from the north of Israel who were beginning their first year of English instruction. Results from a Linear Structural Equational Analysis (LISREL) showed that the Hebrew independent variable consisting of morphological and phonological awareness, orthographic ability, and word reading (accuracy and speed) predicted EFL knowledge of letter sounds and names, word attack and reading comprehension. In addition to the Hebrew independent variable, English word recognition (accuracy and speed) predicted English reading comprehension. These results support the Linguistic Coding Differences Hypothesis (LCDH), which argues for core linguistic abilities that influence first and subsequent language reading acquisition.     

Predicting reading ability over the long term: The changing roles of letter naming,phonological awareness and orthographic processing

A cohort of 92 children was followed through sixth grade to investigate the relationship of preschool skills and first grade phonological awareness to reading and spelling. In particular, the focus was on the changing roles of letter naming, orthographic awareness, and phonological processing in prediction, as reading experience increased. Preschool letter naming was a consistently significant predictor of reading vocabulary, reading comprehension, and spelling at each grade level, but the preschool orthographic task contributed most to reading comprehension and spelling at the higher grades. Conversely, the contribution of the first grade phonemic awareness measures to reading skills dropped sharply after third grade, although they continued to contribute to spelling prediction. When preschool precursors of phonological processing were examined, letter naming was found to be a predictor of first and third grade phonemic awareness. Findings confirm the importance of letter naming as a predictor and of the role of phonemic awareness in early reading acquisition, but also highlight the contribution of orthographic processing skills to later reading.     

Longitudinal course of rapid naming in disabled and nondisabled readers

The Rapid Automatized Naming Test (Denckla and Rudel 1974) was studied cross-sectionally in an sample of kindergartners (n=342) at-risk for reading disability (Study 1), and longitudinally in an n=160 epidemiological normal sample of children tested in first, third, fifth, and eighth grades (Study 2). Study 1 showed faster absolute naming speeds for those with near perfect untimed alphabet recitation, but the stronger and more orderly relation (at r=.31, p<.0001) was between three levels of alphabet recitation accuracy and the relative number/letter naming speed advantage (ratio of mean number/letter naming speed minus mean color/object naming speed over mean color/object naming speed). In Study 2, the number/letter advantage was already strongly present by first grade, and did not increase significantly thereafter, but absolute naming times improved steadily across grades in an exponential decay function. In this sample, the relative number/letter advantage was not related to reading level. However, the absolute color/object naming speed was strongly related to reading level and vocabulary across grades. Norms for the Rapid Automatized Naming Test based on the epidemiological normal sample tested in Grades 1, 3, 5, and 8 are presented in the appendix.     

Speech perception and speech production as indicators of reading difficulty

In order to investigate the relation between reading accuracy and speech processing, 20 children from grades 2 and 3 who were skilled in reading were compared with 20 less skilled readers on a speech perception and production task. The two groups of readers were indistinguishable in their production of the two-syllable words dippy, deepy, tippy, and teepy and in their perception of the stop consonants /d/ versus /t/. Less skilled readers were significantly less accurate than the skilled readers in a vowel identification task involving the lax and tense high vowels /i/ and /i/. The error pattern for vowel identification was similar across groups, with both groups making fewer errors when short and longer segments were alternated. The results imply that vowel phonemes are less securely represented in the perceptual system of less skilled readers than are consonant phonemes. In addition, the results raise the possibility that a selective perceptual impairment underlies at least some of the phonemic awareness problems that have been associated with poor reading.     

The effects of different approaches to reading instruction on letter detection tasks in normally achieving and low achieving readers

The present study used two letter detection tasks, the classic missing letter effect paradigm and a single word versus familiar word compound version of this paradigm, to study bottom-up and top–down processes involved in reading in normally achieving as compared to low achieving elementary school readers. The research participants were children in grades first to sixth who had been taught to read by three approaches to reading instruction (ARI): the whole language/global approach, the phonic/synthetic approach or the eclectic approach. Thus, the study attempted to clarify how different ARIs activate these processes in these two types of readers. The main hypothesis was that since low achieving readers rely on top–down processes for word recognition (see, e.g., Stanovich, 1980), the whole language ARI will reduce the difference in bottom-up tasks between them and the normally achieving readers. In the two experiments included in the study, participants were required to perform a letter detection task while reading short texts in Hebrew for comprehension. Contrary to this study hypotheses, the main finding was that the whole language ARI does not compensate for difficulties in bottom-up processes of low achieving readers. Moreover, the results of this study imply that any improvement in basic processes involved in reading proficiency produced by the whole language ARI for both the normal and the low achieving readers dissipates by grade three.     

Morphological and orthographic effects on hemispheric

We tested the effects of morphological and orthographic differences between English, Hebrew, and Arabic on the functioning of the two cerebral hemispheres. University students who were native speakers of each of the three languages performed a lateralized consonant-vowel-consonant (CVC) identification task. The stimuli were presented vertically in three conditions: left visual field (LVF), right visual field (RVF), and bilaterally (BVF). Three dependent measures were used: (1) exposure duration of the stimuli in order to achieve a 50% error rate, (2) total number of errors in each presentation condition and (3) the difference between errors on the first letter and errors on the last letter, a qualitative measure of sequential processing. Arabic readers required longer exposure durations of the syllables in order to achieve a 50% error rate than Hebrew readers, who in turn, required longer exposure durations than native English readers. Readers of all three languages evinced left hemisphere specialization for this linguistic task and a bilateral advantage. The qualitative patterns revealed that the Arabic and Hebrew speakers showed the same hemispheric difference pattern, that was different from the one shown by English readers, and that Arabic readers showed a qualitative pattern suggesting higher levels of sequential processes in both hemisphere than readers of Hebrew and English. We interpret this as reflecting the adaptation of hemispheric abilities to reading languages that differ in morphological structure and orthography.     

Spelling as a self‐teaching mechanism in orthographic learning

The present study examined the possibility that spelling fulfils a self‐teaching function in the acquisition of orthographic knowledge because, like decoding, it requires close attention to letter order and identity as well as to word‐specific spelling–sound mapping. We hypothesised that: (i) spelling would lead to significant (i.e. above‐chance) levels of orthographic learning; (ii) spelling would actually result in superior learning relative to reading owing to the additional processing demands invoked when spelling; (iii) there would be stronger outcomes for post‐test spelling production compared with spelling recognition; and (iv) relative to reading, spelling would produce superior orthographic learning in the case of later‐occurring orthographic detail compared with information appearing earlier in the letter string. In a fully within‐subjects design, third grade Hebrew readers were exposed to novel letter strings presented in three conditions: spelling, reading and an unseen control condition. With the exception of the position by condition interaction (our fourth hypothesis), which, although in the expected direction, failed to attain significance, all hypotheses were supported. These data highlight yet another dimension of reading–writing reciprocity by suggesting that spelling offers a powerful self‐teaching tool in the compilation of word‐specific orthographic representations.     

Morphological processing during visual word recognition in Hebrew as a first and a second language

The present study examined whether sublexical morphological processing takes place during visual word-recognition in Hebrew, and whether morphological decomposition of written words depends on lexical activation of the complete word. Furthermore, it examined whether morphological processing is similar when reading Hebrew as a first language (L1) or as a second language (L2), and whether L1’s morphological background, Semitic or Indo-European, modulates morphological processing in L2 Hebrew (a Semitic language), among proficient readers. To reveal the sublexical processing of the Hebrew morphemes, the Root (R) and the Pattern (P), a lexical-decision task was conducted, in which all critical stimuli were non-word letter-strings manipulated to include or exclude real Hebrew morphemes. Different combinations of real (+) and pseudo (?) morphemes yielded four types of non-words (+R+P; +R?P; ?R+P, ?R?P). Three groups of proficient Hebrew readers were tested: L1 Hebrew, L1 English-L2 Hebrew, and L1 Arabic-L2 Hebrew. Results demonstrated significant differences in latency and accuracy of responses to the four morphological conditions, indicating that sublexical morphological processing occurs during visual word-recognition of morphologically structured letter-strings in Hebrew. Importantly, the activation of real Hebrew morphemes occurred in non-word stimuli, indicating that morphological processing in Hebrew is separable from lexical activation. Moreover, the same pattern of results was observed in all three L1 groups, indicating that proficient L2 readers exhibit morphological processing strategies that are tuned to the L2 morphology, regardless of their L1 background.     

Representing written vowels in university students with dyslexia compared with normal hebrew readers

The study investigates dyslexic and normal Hebrew readers’ perception of words containing a vowel letter in different orthographic and morphological contexts. In the first experiment, 72 undergraduate education students (half diagnosed with reading disabilities and half normal readers) were asked to judge pointed words with different morphological structures with and without the grapheme W. Half of the words had consistent (obligatory) W and half had inconsistent (optional) W. In the second experiment, the same procedure was repeated using the same words without pointing marks. Response latencies and accuracy were measured. In both experiments, dyslexic readers did less well than normal readers. They had lower scores on accurate lexical decisions and they took more time over these decisions. They also exhibited some deviant patterns, indicating that they cannot make use of orthographic and morphological cues that are available to normal readers, especially in the pointed experiment. Processing pointed words placed a heavier cognitive burden on the dyslexic readers. These findings are in line with other studies of adult dyslexic reader/writers, and support a reading / spelling processing model, which claims that internal orthographic representations of words are increasingly strengthened with each exposure during reading, but not all graphemes are strengthened equally. The general implication is that the ambiguities that exist in the relationships between orthography, phonology, and morphology underlie spelling knowledge, and are particularly difficult for dyslexic readers.     

How do beginners learn to read irregular words as sight words?

Learning irregular words involves mental marking of irregular letters in the spelling, a process not fully understood. In a within‐subjects experiment, we manipulated the type of scaffolding given to beginning readers to evoke mental marking. We pretested to sort 103 kindergarten and first‐grade participants into sequential decoders, who decode letter by letter, and hierarchical decoders, who recognise vowel patterns. In the control phase, children read irregular words in sentence contexts with minimal scaffolding. In the experimental phase, participants read additional irregular words in sentence contexts by ‘operating on the word’ to mark irregular letters. Results indicated that the experimental condition induced better untimed word reading, but it did not improve spelling or reading in a flash presentation. Hierarchical decoders were significantly more successful than sequential decoders in untimed word reading, spelling and reading in the flash presentation. These results suggest that learning hierarchical decoding predisposes readers to learn irregular words.