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Spelling impairments in Spanish dyslexic adults.

ABSTRACT: Spelling deficits have repeatedly been observed in children with dyslexia. However, the few studies addressing this issue in dyslexic adults have reported contradictory results. We investigated whether Spanish dyslexics show spelling deficits in adulthood and which components of the writing production process might be impaired in developmental dyslexia. In order to evaluate the involvement of the lexical and the sublexical routes of spelling as well as the graphemic buffer, lexical frequency, phonology-to-orthography consistency and word length were manipulated in two writing tasks: a direct copy transcoding task and a spelling-to-dictation task. Results revealed that adults with dyslexia produced longer written latencies, inter-letter intervals, writing durations and more errors than their peers without dyslexia. Moreover, the dyslexics were more affected by lexical frequency and word length than the controls, but both groups showed a similar effect of P-O consistency. Written latencies also revealed that while the dyslexics initiated the response later in the direct copy transcoding task than in the spelling-to-dictation task, the controls showed the opposite pattern. However, the dyslexics were slower than the controls in both tasks. Results were consistent with the hypothesis that spelling difficulties are present in adults with dyslexia, at least in a language with a transparent orthography such as Spanish. These difficulties seem to be associated with a deficit affecting both lexical processing and the ability to maintain information about the serial order of the letters in a word. However, the dyslexic group did not differ from the control group in the application of the P-O conversion procedures. The spelling impairment would be in addition to the reading deficit, leading to poorer performance in direct copy transcoding compared to spelling-to-dictation.

SUBMITTER: Afonso O

PROVIDER: S-EPMC4403306 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Spelling impairments in Spanish dyslexic adults.

Afonso Olivia O Suárez-Coalla Paz P Cuetos Fernando F

Frontiers in psychology 20150420

Spelling deficits have repeatedly been observed in children with dyslexia. However, the few studies addressing this issue in dyslexic adults have reported contradictory results. We investigated whether Spanish dyslexics show spelling deficits in adulthood and which components of the writing production process might be impaired in developmental dyslexia. In order to evaluate the involvement of the lexical and the sublexical routes of spelling as well as the graphemic buffer, lexical frequency, ph ...[more]

PMID: 25941507

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Project description:Learning to read involves efficient binding of visual to auditory information. Aberrant cross-modal binding skill has been observed in both children and adults with developmental dyslexia. Here, we examine the contribution of episodic memory to acquisition of novel cross-modal bindings in typical and dyslexic adult readers. Participants gradually learned arbitrary associations between unfamiliar Mandarin Chinese characters and English-like pseudowords over multiple exposures, simulating the early stages of letter-to-letter sound mapping. The novel cross-modal bindings were presented in consistent or varied locations (i.e., screen positions), and within consistent or varied contexts (i.e., co-occurring distractor items). Our goal was to examine the contribution, if any, of these episodic memory cues (i.e., the contextual and spatial properties of the stimuli) to binding acquisition, and investigate the extent to which readers with and without dyslexia would differ in their reliance on episodic memory during the learning process. Participants were tested on their ability to recognize and recall the bindings both during training and then in post-training tasks. We tracked participants' eye movements remotely with their personal webcams to assess whether they would re-fixate relevant empty screen locations upon hearing an auditory cue-indicative of episodic memory retrieval-and the extent to which the so-called "looking-at-nothing behavior" would modulate recognition of the novel bindings. Readers with dyslexia both recognized and recalled significantly fewer bindings than typical readers, providing further evidence of their persistent difficulties with cross-modal binding. Looking-at-nothing behavior was generally associated with higher recognition error rates for both groups, a pattern that was particularly more evident in later blocks for bindings encoded in the inconsistent location condition. Our findings also show that whilst readers with and without dyslexia are capable of using stimulus consistencies in the input-both location and context-to assist in audiovisual learning, readers with dyslexia appear particularly reliant on consistent contextual information. Taken together, our results suggest that whilst readers with dyslexia fail to efficiently learn audiovisual binding as a function of stimulus frequency, they are able to use stimulus consistency-aided by episodic recall-to assist in the learning process.

Project description:IntroductionSpelling difficulty is a common symptom of aphasia and can entail editing difficulties. Previous research has shown that extensive editing is related to a lower production rate in text writing for persons with aphasia, yet editing difficulty is not commonly examined. It is not known if editing difficulty is related to reading and writing skills or to aspects of the word.AimsTo analyse spelling and editing processes as well as errors in a dictation task performed by Swedish-speaking adults with post-stroke aphasia. Furthermore, the study aimed to identify any relationships between spelling and editing difficulties and characteristics of individual words. Finally, relationships between successful edits and reading and phonological ability were investigated and specific editing strategies or behaviours identified. Correlation analyses were performed between measures of spelling and editing and word frequency and length as well as participants' scores on tests of reading, phonological spelling and phonological decoding.Methods & proceduresA total of 16 Swedish speaking participants with post-stroke aphasia wrote a word-dictation task in a keystroke logging program and were tested for phonological spelling, phonological decoding and reading ability. Spelling errors were categorized and analysed.Outcomes & resultsThe most common error type was omission of letter(s) and there was evidence of aphasia-specific writing errors. Both spelling and editing difficulty were related to word frequency and word length. Successful editing was related to participants' scores on the phonological spelling task, but not to phonological decoding or reading ability. Specific editing strategies could be identified, and some strategies were individual, while others were more commonly used.Conclusions & implicationsWord length and word frequency should be taken into consideration in spelling tests for persons with aphasia, and the presence of editing difficulty should be taken into account when assessing spelling difficulties. Treatment for writing difficulties in aphasia should include training in successful editing strategies and individual fitting of digital writing aids. What this paper adds What is already known on the subject Post-stroke aphasia often causes writing and spelling difficulties. Spelling difficulties may entail editing difficulties, in turn causing extensive and/or unsuccessful editing. Extensive editing is known to impede productivity in text writing. Still, editing behaviour, abilities relating to editing or what features of a word that causes editing difficulty has not been investigated for persons with aphasia. What this paper adds to existing knowledge This study adds an in-depth analysis of spelling ability, spelling errors and editing behaviour for persons with aphasia, using keystroke logging and a single-word dictation task. Results showed that both features of the target word (frequency and word length) and the individual abilities of the person with aphasia (score on a phonological spelling task) related to spelling and editing difficulty, editing behaviour and successful editing. Specific editing strategies were analysed and described. What are the potential or actual clinical implications of this work? Word length and word frequency should be taken into consideration when testing single-word spelling for persons with aphasia. When assessing spelling difficulties, both correctness of spelling as well as the presence and nature of any editing difficulties should be taken into account and treatment for writing difficulties in should include training in successful editing strategies. The fitting of digital writing aids for persons with aphasia should be individual, since many of the editing strategies used were individual.

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Project description:BackgroundThe pandemic caused by COVID-19 has meant for spanish citizens a constant adaptation to health measures in order to try to stop transmission of the virus. During this adaptation process, different psychosocial aspects have caused consequences for people?s mental health to a greater or lesser extent. Makes sense of an emotional torrent who has gone through fear, anxiety, loneliness and anger. The interaction between perception and reality has given rise to situations where loneliness and social isolation have been imposed and lived with a load of emotional discomfort. In others, social isolation and measures to stop the pandemic have been accepted as a protection system and has been experienced since serenity and the feeling of self-protection fostering individual resilience. Studying the predictors of resilience is going to be key since it is the ideal antidote to stop the appearance of mental disorders associated with the pandemic (such as depression, anxiety, post-traumatic stress, social phobia, cleaning obsessions, and generalized anxiety disorder). The objective of this research is to analyze the relationship between resilience and experiential COVID-19 factors.MethodsSample was comprised of Spanish adults (n = 1000; age 18-79 [mean =40.43],793 female, 201 male, and 2 non binary sex). These people participating in an online study focused on the impact of COVID-19 experiences. The research has been cross-sectional, descriptive and correlational design. The instrument created for this research was a specific online questionnaire, including the "Scale of resilience" (RS, Wagnild & Young, 1993, Spanish version, Sánchez-Teruel, et al., 2015). That questionnaire has been administered during the months of April 2022 to July 2022.ResultsThe results obtained show how people who have been able to face the pandemic in a responsive and adaptive way have high resilience. Specifically, those participants that accepting the use of masks, vaccinations and confinement obtained high resilience.ConclusionsUsing public funding and allocating research to the development of programs to promote resilience, adaptative beliefs and prosocial behaviors becomes basic to live in a world in constant change.

Dataset Information

Spelling impairments in Spanish dyslexic adults.

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Spelling impairments in Spanish dyslexic adults.

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