Filippos Vlachos

University of Thessaly | UTH · Παιδαγωγικό Τμήμα Ειδικής Αγωγής

Developmental language disorder (DLD) is a neurodevelopmental language disorder that causes a delay in language development and deficits in all domains of language. The bulk of research up to now has focused mainly on the oral language of the DLD population; however ,written language is also impaired in DLD and remains an under researched field thu...

The present study aims to investigate the written language production in Greek of Developmental Language Disorder (DLD) children and compare it to that of typically developing (TD) children matched for gender and chronological age. The participants of the study were 31 children with DLD (7.6 years old) and 31 TD children (7.7 years old). All the pa...

The various intuitive reasoning types in many cases comprise the core of students’ misconceptions about concepts, procedures and phenomena that pertain to natural sciences. Some researchers support the existence of a relatively closer connection between the right hemisphere and intuitive thought, mainly due to a notably closer relation of individua...

Brain-Based Learning (BBL) is an educational theoretical framework based on principles that derive from important findings about the structure and function of the brain through biology, psychology, and neuroscientific research, and forms a holistic context for a comprehensive instructional approach design. In the present study, a teaching intervent...

According to DSM 5, generalized anxiety disorder (GAD) is characterized by excessive, uncontrollable worry about various topics that occupies the majority of the subject’s time for a period of at least six months. The aforementioned state causes distress and/or functional impairments. This paper presents the outcomes of a pilot study that evaluated...

Dyslexia is a neurodevelopmental disorder of word-level processing. Ιt is typically diagnosed at school age, when children are expected to learn to read and spell accurately and fluently. One of the neurobiological traits that characterize children with dyslexia is the atypical cerebral lateralization of language. Typical cerebral lateralization of...

The aim of the present study was to investigate the types of the mistakes that students with dyslexia might encounter during solving mathematical problems in relation to typically developing students. Participants were 30 students with diagnosis of dyslexia and 30 typical developing students, aged 10-13 years old. All participants were individually...

Although reading and writing are often treated as two separate processes, the research data of recent years suggest that these two functions seem to be interrelated and one depends on the other. The aim of this study was to examine whether handwriting is related to and, further, influences the development of reading abilities. To this end, we have...

Hand preference - which is related to brain dominance - is thought to be associated with cognitive development. The purpose of the study was to attempt to outline the issue of the relationship between hand preference and the development of cognitive skills. The brief review of recent large-scale surveys and meta-analyses suggests that the various f...

Developmental dyslexia and developmental dysgraphia are considered to be distinct learning difficulties that affect the child's ability to learn. Dyslexia affects all aspects of written language, while the symptoms of dysgraphia appear to be confined to difficulties in writing. However, the distinction between the two learning difficulties is often...

Dyslexia is the most common learning disability and it is characterized by a persistent failure to acquire reading skills despite normal intelligence, adequate cognitive abilities, conventional instruction and sociocultural opportunities. The main target of the present study was to extend our previous dyslexia screener web application by constructi...

Objective: The main aim of the present study is to evaluate the semantic language abilities of patients with Chronic Obstructive Pulmonary Disease (COPD) compared to normal group. Secondly to examine the role of hypoxemia, hypercapnia and pulmonary parameters on language scores. Method: We assessed 100 COPD patients with the use of a comprehensive...

The aim of this study was to review recent theoretical approaches and research data for non-verbal learning disabilities. The discussion about this disorder focuses on issues such as aetiology, characteristics, subtyping, and more generally sufficient documentation on the existence of the disorder. The data to date, as evidenced by many studies, sh...

This study focused on the area of oral speech, and more precisely, explored differences in various aspects of articulation between 15 children with dyslexia and 15 typically developing children aged 10 to 12 years old. Nine tests were administered to the participants, namely three articulation tests, five articulation speed tests, and one test for...

The purpose of this paper is to highlight the importance of providing counselling to parents of children with developmental disabilities and the benefits it can have it. This review presents the developmental disorders and parenting experience of a child with one or some of these disorders. We also present of the positive results of counselling sup...

The aim of this study was to investigate possible deficits in phonological and visual-spatial memory in children with developmental dyslexia. Participants were 14 children diagnosed with dyslexia and 14 typical developing children, who had been matched in pairs in terms of age and gender with the children of the first group. They were received seve...

Developmental dyslexia is a disorder that occurs during child development, with early indications from pre-school age. Its symptoms are characterized by deficits in various cognitive domains as well as by behavioral problems that vary in intensity and quality. The purpose of the paper is to review research that confirms the heterogeneity in the cog...

The aim of this paper is to present the contemporary multiple deficit models for understanding developmental dyslexia (DD), which replace the dominant theory of phonological deficit that attribute dyslexia to a single underlying cause, a deficit in phonological processing. We refer to the reasons that led to this transition from the single to multi...

Το βιβλίο κινείται στο χώρο της Εκπαιδευτικής Νευροεπιστήμης, ενός νέου επιστημονικού κλάδου, ο οποίος αποτελεί σταυροδρόμι και σημείο συνάντησης των θετικών επιστημών με τις ανθρωπιστικές και κοινωνικές επιστήμες. Αντικείμενο του είναι η σύντομη παρουσίαση της λειτουργίας του εγκεφάλου με βάση πρόσφατα ευρήματα από το χώρο των νευροεπιστημών, και...

Laterality refers to humans’ tendency to prefer one side of their body instead of the other. Τhe inborn lateralization of cerebral hemispheres is most often expressed through the humans’ handedness. Therefore, one common approach to investigate the relationship between cerebral lateralization and cognition is to consider handedness as an indicator...

The aim of this longitudinal study was to examine whether specific skills developed during preschool years could predict the reading performance in children with low reading abilities in the first and second grade of primary school. In this longitudinal study 287 children (146 boys and 141 girls) participated, of whom we separated as children with...

Εισαγωγή: Αν και τα τελευταία χρόνια οι δάσκαλοι δείχνουν μεγάλο ενδιαφέρον για τις νευροεπιστήμες και επιθυμούν να εφαρμόζουν νευροεπιστημονικά ευρήματα στη διδασκαλία τους, πολλά ευρήματα έχουν παρερμηνευτεί με αποτέλεσμα την επικράτηση λανθασμένων πεποιθήσεων, των νευρομύθων.Σκοπός: Σκοπός της έρευνας ήταν η μελέτη της έκτασης της διάδοσης των ν...

Traditional definitions of Developmental Dyscalculia state that a child must substantially underachieve on mathematical abilities tests relative to the level expected given age, education and intelligence. However, cognitive developmental neuropsychological studies nowadays suggest that not only core numerical but also cognitive skills of children...

Developmental dyslexia is defined as an unexpected specific and persistent failure to acquire efficient reading skills despite conventional instruction, adequate intelligence and sociocultural opportunity. The main aim of the present research protocol was to construct a web screening battery of tests in order to screen children's reading, orthograp...

This study examines thesentence processing ability of mild cognitive impairment (MCI) subtypes. In addition to standard MCI neuropsychological tests, an experimental approach was applied to assess language. 133 people (93 MCI/40 controls) participated in novel computerized sentence processing tasks. Results presented statistically significant diffe...

Research results with regard to handedness and braille reading performance are contradictory. The present study investigated (a) the effects of handedness on braille reading performance in people with blindness (or severe visual impairment) and (b) the potential effects of vision loss (or type) of blindness on braille reading. Forty-nine (27 males...

74 άτομα με διάγνωση δυσλεξία, από τους οποίους 28.4% ήταν μαθητές Γ' Λυκείου και 62.2% απόφοιτοι. (Μ.Ο. ηλικίας 19.5 έτη). Στους συμμετέχοντες χορηγήθηκε ερωτηματολόγιο για τη συγκέντρωση δημογραφικών στοιχείων, εκπαιδευτικού ιστορικού και εκπαιδευτικών επιλογών, και πραγματοποιήθηκε συνέντευξη για τη συλλογή ποιοτικών χαρακτηριστικών των επιλογών...

Although very often teachers show a great interest in introducing findings from the field of neuroscience in their classrooms, there is growing concern about the lack of academic instruction on neuroscience on teachers' curricula because this has led to a proliferation of neuromyths. We surveyed 479 undergraduate (mean age = 19.60 years, SD = 2.29)...

Developmental dyslexia is defined as an unexpected specific and persistent failure to acquire efficient reading skills despite conventional instruction, adequate intelligence and sociocultural opportunity. The main aim of the present research protocol was to construct a web screening battery of tests in order to screen children’s reading, orthograp...

p>Στην εργασία αυτή επιχειρούμε να αναδείξουμε πως οι πρόσφατες νευροεπιστημονικές έρευνες έχουν συνεισφέρει στο πεδίο της ειδικής αγωγής. Σκοπός μας είναι να αναδείξουμε πως οι σύγχρονες νευροαπεικονιστικές και ηλεκτροφυσιολογικές τεχνικές έχουν συμβάλλει: α) στη μελέτη και την κατανόηση των ιδιαίτερα περίπλοκων διαδικασιών που υποστηρίζουν την αν...

p> Εισαγωγή : Ο χώρος της εκπαίδευσης έχει ως αντικείμενο τη διδασκαλία και τη μάθηση. Οι Νευροεπιστήμες, από την άλλη μεριά, μελετούν το πώς ο εγκέφαλος μαθαίνει, γιατί κάποιοι μαθητές εμφανίζουν μαθησιακές δυσκολίες και το τι μπορεί να γίνει για να αντιμετωπιστούν οι δυσκολίες αυτές. Δεν αποτελεί, λοιπόν, έκπληξη, ότι το ενδιαφέρον των δασκάλων γ...

Apert syndrome is a rare genetic syndrome that is usually associated with intellectual disability. There is still limited knowledge about the syndrome’s cognitive-linguistic characteristics. The aim of this study was to evaluate the language and nonverbal abilities of two children (twins) with Apert syndrome aged 8.6 years, and to examine whether t...

Learning disabilities is a generic term that refers to a heterogeneous group of disorders. The aim of the present pilot study was to examine the efficacy of a new web neurocognitive screening tool, the " askisi " that was developed to provide a brief screening measure for learning difficulties. Participants were twenty children who had been initial...

The present study aimed to assess the effect of age and gender on second grade children’s reading performance. Two hundred and eighty-seven children aged 7.1–8.2 years were divided into two age subgroups (the younger, 85–91 months and the older, 92–98 months) and were examined in reading accuracy, fluency, and comprehension tasks. Results showed a...

Background: Previous studies have shown that AD patients present a stepwise regression to their cognitive functioning from a mature adult to that of an infant. Objectives: The present study aimed to compare Alzheimer's disease (AD) patients' and 4-10 year old children's drawing performance, taking into account that drawing is currently considere...

Patients with chronic obstructive pulmonary disease (COPD) and obstructive sleep apnea syndrome (OSAS) show similar neurocognitive impairments. Effects are more apparent in severe cases, whereas in moderate and mild cases the effects are equivocal. The exact mechanism that causes cognitive dysfunctions in both diseases is still unknown and only sug...

The present study aimed to assess the effect of age and gender on preschool children’s specific motor skills. Three hundred children (154 boys and 146 girls) aged 60 to 71 months, were divided into two age subgroups (60-65 and 66-71 months) and were examined in three motor tasks: bead threading, shape copying and postural stability, assessing visua...

The aim of this study was to examine if specific skills that are developed during preschool years could predict the reading performance in the first and second grade of primary school. 287 children participated in this longitudinal study. At the kindergarten level, phonological awareness, rapid automatized naming, phonological short-term memory, au...

The aim of this paper was to review studies investigating the arithmetic and calculation skills in people with autism spectrum disorders. Focusing on the neurobiological and cognitive processes activated by autistic individuals during mathematical and calculatory tasks, we tried to delineate potential differences in calculatory thought among indivi...

The present study examined the link between learning styles and dyslexia in secondary school students, using the Visual-Auditory-Kinesthetic (VAK) learning styles model. According to the VAK model, most people possess a dominant or preferred learning style, however some people have a mixed and evenly balanced blend of the three styles. Our hypothes...

The study of multiple abilities or intelligences could be a very promising field of research for students with learning difficulties, in order to build into alternative learning plans to enhance language acquisition and reading ability. The main purpose of the present study was to assess the relationship between dyslexia and multiple intelligences...

The present study examined the link between learning styles and dyslexia in secondary school students, using the Visual-Auditory-Kinesthetic (VAK) learning styles model. According to the VAK model, most people possess a dominant or preferred learning style, however some people have a mixed and evenly balanced blend of the three styles. Our hypothes...

The aim of the present study is twofold. First, we tested the view that individuals who do not develop a typically strong behavioral laterality are distributed differentially among the two genders across age. Second, we examined whether left-handedness and mixed-handedness are associated with an elevated risk of some developmental or cognitive defi...

Dyslexia is the most common and carefully studied of the learning disabilities in school-age children. It is characterized by a marked impairment in the development of reading skills, and affects a large number of people. The prevalence of dyslexia shows considerable cross-national variation. Additionally, a plethora of research studies have indica...

Handedness is marked by the preference of one hand over another for fine motor tasks, especially writing. Usually, only one hand is considered dominant; however, there are individuals who exhibit the ability to use both hands equally (mixed-handers). The aim of this study was to identify the incidence for handedness in a sample of Greek adolescents...

Research results with regard to handedness and dyslexia have been ambiguous. The present study investigated the relationship between handedness and dyslexia in secondary school students based on genetic (Right-Shift) and hormonaldevelopmental theories of handedness. A total of 135 students (45 dyslexics and 70 age- and sex-matched controls) partici...

The incidence of non-right-handedness in the general population is estimated to be approximately 10%. However, it has long been noted, that the prevalence of non-right-handedness among various clinical populations is significantly greater than that of the typical population. The aim of this study was to evaluate handedness distribution in a sample...

In this thorough review of literature, we showed that the majority of OSAS patients suffer from attentional, memory and psychomotor speed decline, while others present impairments in high order cognitive functions such as executive functions and language impairment as well. CPAP treatment is not always helpful in improving cognitive functions, sugg...

Το βιβλίο αυτό προσπαθεί να προσεγγίσει το φαινόμενο της αριστεροχειρίας, της χρησιμοποίησης δηλαδή του αριστερού χεριού αντί του δεξιού για την πλειονότητα των χειρωνακτικών δραστηριοτήτων του ανθρώπου. Κινούμενο στους χώρους της ψυχοβιολογίας του επιστημονικού δηλαδή πεδίου που διερευνά τη σχέση των βιολογικών συστημάτων και λειτουργιών με τη συμ...

In a recent study, Bruckner, Kastner-Koller, Deimann, and Voracek (2011) investigated the relationship between hand preference and drawing during preschool years. The present study offers interpretations in a larger framework which could contribute to the better understanding of that relationship, and provides future directions in this area.

The present study aims to present the main neuroscientific findings that influence educational process. At first, we present the “neuromyths”, the early attempts in translating neuroscientific research to practice which involve a degree of over-simplification and misinterpretation. Consequently, we present the opportunities that offer current brain...

Dyslexia is a multi-symptomatic and heterogeneous disorder incorporating a wide variety of cognitive difficulties, and which is neurobiological in origin. This article attempts to provide a brief overview of contemporary and often controversial theories and research findings on the causes of dyslexia. Our first aim was to give a picture of the exte...

Dyslexia is a multi-symptomatic and heterogeneous disorder incorporating a wide variety of cognitive difficulties, and which is neurobiological in origin. This article attempts to provide a brief overview of contemporary and often controversial theories and research findings on the causes of dyslexia. Our first aim was to give a picture of the exte...

The present study aimed to assess the effect of age and sex on preschool children’s phonological awareness. Three hundred children (154 boys and 146 girls) aged 61 to 72 months, were divided into two age subgroups (61-66 and 67-72 months) and were examined during four tasks: syllable segmentation, initial first letter sound identification, syllable...

The present study aims to present the main neuroscientific findings that influence educational process. At first, we present the “neuromyths”, the early attempts in translating neuroscientific research to practice which involve a degree of over-simplification and misinterpretation. Consequently, we present the opportunities that offer current brain...

This study of the systematic relationship between cerebral laterality and individual differences in cognitive functions is one of the most challenged and difficult to achieve goals of neuropsychology, having attracted the specific interest of the scientific community the last decades. The research in both clinical populations and normal subjects su...

Dyslexia, a specific reading disability, is one of the most common psychological problems which seriously impairs school achievement and interferes with the acquisition of knowledge of written sources. As the hereditary component of dyslexia is becoming more and more firmly established nowadays, there has been a growing interest in investigations o...

Given the paucity of research that has examined associations between learning styles and chosen academic discipline in connection with performance on different second language (L2) verbal fluency tasks, the authors undertook the current study with the aim of investigating the relationship between Greek students' learning styles and performance on E...

In this study we evaluated the effectiveness of the writing criteria that are proposed to be applied during the construction of physics texts so that students with dyslexia do not confront reading difficulties with them. The evaluation of the criteria achieved by the accomplishment of an experimental investigation among students with dyslexia (expe...

The main aims of this study were a) to assess the cerebellar deficit hypothesis examining children's performance in cerebellar and cognitive tasks associated with the dyslexic syndrome and b) to investigate if there is a differentiation in articulation speed in children with dyslexia. A battery consisted of five cerebellar tests, five cognitive tes...

Traditionally, the cerebellum has been considered to control coordinated movement. However, in recent years it has been argued that it contributes to higher cognitive functions. This review aims to present recent evidence concerning the role of the cerebellum and discusses how it can contribute to reading. The procedure used involves findings comin...

This study assessed possible influences of age, sex and handedness on visual-motor organisation. Twenty left-handed (10 boys and 10 girls) and an equal number of right-handed children participated in this study and they were examined on their performance on ROCF test over a period of five years. Our results showed an improvement in visual-motor ski...

Given that during the preschool years, children are rapidly developing patterns of behaviour and motor skills, the aim of this study was to investigate the effect of handedness on motor performance, in a sample of 5- to 6-year-old children attending normal kindergarten.Three hundred preschool children (116 boys and 184 girls), aged 5 to 6 years old...

The interest in the role of cerebellum in cognitive functioning has been increasing in recent days, based on both theoretical considerations and empirical evidence. The first aim of this study was to provide an introductory overview of the recently acknowledged role of the cerebellum in a number of cognitive processes, with special emphasis on its...

The cerebellum is one of the most consistent sites of neuroanatomic abnormality in autism, but the motor consequences of the possible cerebellar dysfunction are poorly documented. The purpose of the present study was to examine individuals with autism, mental retardation and a normally intelligent comparison group of children in their performance o...

Background There is considerable interest in differences in students' approaches to learning, particularly in the difference between â–˜deepâ–™ approaches (characterized by contextualization, critical review and recognition of the value of the content) and â–˜surfaceâ–™ approaches (characterized by rote learning for functional purposes). The Revise...

The present study aimed to assess the effect of age and sex on children's writing performance, as well as to investigate possible age and sex differences between proficient, intermediate and poor writers. Two hundred and ten children aged 7 to 12 years were examined during spontaneous writing, copying and writing to dictation, using the writing sca...

Previous research has shown that studying orientations are important factors in determining academic performance. The main purpose of this study was to investigate how Greek students' approaches to studying in combination with gender, academic discipline, and professional degree in English affect performance on verbal fluency tasks in English as a...

The present study investigated the influence of sex, handedness, level in second language (L2) and Faculty choice on the performance of phonological, syntactical and semantic tasks in L2. Level in L2 and sex were the most affecting factors. Subjects who achieved higher scores on L2 tasks had strong second language aptitude skills since they were th...

The aim of our study was to investigate possible relationships between writing and drawing performance of school-aged children, in order to compare the two skills at the within-individual level. The sample consisted of 182 right- and left-handed children, aged 8 to 12 years. Children were examined by the Greek adaptation of the Luria-Nebraska neuro...

The aim of the present study was to investigate the effect of hand preference on children's drawing development. An equal number of left- and right-handed children (N = 182), aged 7 to 12 years were asked to complete four different drawing tasks. During the drawing process, directionality of horizontal, vertical, and circular strokes as well as seq...

The present study investigated possible differences in left- and right-handers' writing performance. An equal number of left- and right-handed Greek children (N = 182) ages 7 to 12 years were examined using the Greek adaptation of Luria-Nebraska's neuropsychological battery in spontaneous writing, copying, and writing to dictation. Analysis showed...

This study evaluates the performance of children with diagnosed dysgraphia and a control group on the Rey-Osterrieth Complex Figure test. A group of 48 Greek elementary school children aged 6.6 to 12.5 years who were in regular school placement participated. All had been diagnosed with dysgraphia, using the writing scale of the Luria-Nebraska Neuro...

Sex differences in cognition have been the focus of intense debate for years. In this study, we examined the hypothesis that the pattern of sex differences in a visuospatial task may be differential due to environmental factors such as the participation of females in technical and scientific courses. A total of 452 undergraduate students (146 males...

Assessed hand preference in 7- to 9-yr.-old and 13- to 15-yr.-old pupils with Down syndrome (n = 41) was compared with control schoolchildren (n = 50) of the same ages. A significant increase in left-handedness and mixed-handedness was noted in Down syndrome groups compared with the normal population. Younger Down syndrome pupils were less consiste...

This study examined the association between handedness, gender and neurosurgical disorders. The Annett’s handedness inventory was used to assess handedness in 417 patients who had been admitted to Patras’ university neurosurgical clinic over the last six months. The patients for neurosurgery did not differ in handedness from the average obtained in...

This study examines the association between handedness, gender and neurosurgical disorders. The Annett’s handedness inventory was used to assess handedness in 417 patients who had been admitted to Patras’ university neurosurgical clinic over the last six months. The patients for neurosurgery did not differ in handedness from the average obtained in...

Development of visuomotor skills in 420 left-banded and 420 right-handed school children were investigated using the Rey-Osterrieth Complex Figure. Analysis indicate that the visuomotor skills involved in copying a complex figure improve with age until the mean age of 10.5 yr., in both sex and handedness groups. Further analysis showed that girls p...

The visual-motor organization of the child was investigated with the primary aim of defining the relationships between the cognitive changes taking place during problem solving (mnemonic reproduction of a complex figure) and the structural functional elements involved. The sample consisted of 840 right-handed and left-handed children aged 5.5 to 12...

The present study was to assess differences between left- and right-handed children on the variable of visual-motor organization, as demonstrated by copying of a complex figure. The sample consisted of 420 right-handed and 389 left-handed children aged 5.5 to 12.5 years, who were group-matched on the basis of age, sex and hand-preference. Analysis...

In this study we used the Rey-Osterrieth complex figure to examine the visuomotor organization of 514 boys and girls, aged 5.5 to 20.5 yr. All were left-handed as judged by the Edinburgh Handedness Inventory. Statistical evaluation showed significant differences in teh visuomotor organization for boys and girls across the various age groups. Statis...