Familial mental retardation: a review and practical classification

Maris, Angelica Francesca; Barbato, Ingrid Tremel; Trott, Alexis; Montano, Marco Aurélio Echart

doi:10.1590/s1413-81232013000600023

Cited by 6 publications

(8 citation statements)

References 58 publications

(1 reference statement)

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“…These findings agree with previous research studies supporting that Non-verbal IQ score is higher than Verbal and General IQ in intellectually disabled children (Tylenda et al, 2007) especially in children with familial/environmental retardation (Maris et al, 2013), as children who participated in our study. The aforementioned results are predictable as: a) Verbal IQ is interrelated with knowledge provided by school and children's socio-cultural environment, and b) low socioeconomic status of intellectually disabled impede the provision of appropriate educational stimulants and high motivation of achievement.…”

Section: Performances Of Children With Mild Id In Verbal and Non-verbal Scales Of Wisc IIIsupporting

confidence: 94%

Evaluating fine perceptual-motor skills in children with mild intellectual disability

Koutsobina

Zakopoulou

Tziaka

et al. 2021

Adv Dev Educ Psychol

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Over the years, several studies have indicated that delay in perceptual-motor development and impaired motor organization is strongly associated with the level of cognitive functioning and performance in children. The aim of the present research study was to assess the fine perceptual-motor skills of children with mild intellectual disability 7-9-years-old and the comparison of their performance with two groups of typically developing children with the same chronological and a corresponding mental age. Our research sample consisted of 129 children between the ages of four and nine years whilst the experimental group had a total of 43 children (7-9-years-old) with mild intellectual disability. As an assessment tool of fine perceptual-motor skills we used a battery of tasks constructed in accordance with other commonly used standardized tests that measure psychomotor abilities. Furthermore, several comparisons were carried out in order to investigate our experimental hypotheses. Overall, our results revealed that children with mild intellectual disability scored lower in the tasks compared to typically developing children of equal chronological age but significantly higher than the group of typically developing children of the same mental age (preschoolers). The results of the psychometric properties of our designed tasks (reliability, validity) verify the high-quality psychometric characteristics of the designed tool.

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Section: Performances Of Children With Mild Id In Verbal and Non-verbal Scales Of Wisc IIIsupporting

confidence: 94%

Evaluating fine perceptual-motor skills in children with mild intellectual disability

Koutsobina

Zakopoulou

Tziaka

et al. 2021

Adv Dev Educ Psychol

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“…However, in several lower-income countries the possibility to have a formal IQ test is restricted to the wealthier population, therefore in Brazil for most of the individuals the diagnosis of ID and the classification of its severity are done by medical doctors that rely on clinical observations complemented by information given by parents and teachers. The DMS-V sediments this more practical approach to the diagnosis of ID, emphasizing the conceptual, social and practical skills to classify the intellectual performance into mild, moderate, severe and profound without the need of a formal IQ test [ 18 ] Although the technologies used to diagnose ID have advanced a great deal in recent years, for 30 to 60% the etiology still remains unclear, which is an even greater concern when the case is familial [ 19 ]. The overall impact of familial ID depends greatly on cultural differences, not only related to consanguinity but also to the size of the families (number of children of each generation) [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Etiology of intellectual disability in individuals from special education schools in the south of Brazil

et al. 2020

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Background Intellectual Disability (ID) is characterized by significant limitations that affect intellectual functioning, adaptive behavior, and practical skills which directly interfere with interpersonal relationships and the environment. In Western countries, individuals with ID are overrepresented in the health system, often due to associated comorbidities, and its life-time cost places ID as one of the most expensive conditions of all diagnoses in the International Classification of Diseases. Most of the people affected (75%) live in low-income countries, suffer from malnutrition, lack health care, and do not have access to adequate treatment. The aim of this study was to obtain an estimate of the diagnostic status as well as the prevalence of familial ID among individuals with serious (moderate or severe) ID in a region of the State of Santa Catarina, investigating attendees of special education schools of the Florianópolis Macroregion. Methods This was a cross-sectional study conducted between August 2011 and August 2014, through a semi-structured screening questionnaire for the collection of relevant developmental, clinical, familial and educational data, applied in an interview to guardians of students of special education schools of the macroregion of Florianópolis. Results The participant special schools enrolled close to 1700 students during the study period and the questionnaire was applied to 849 (50.5%). The male to female ratio of the participants was 1.39:1. Clear etiologic explanations were relatively scarce (24%); most diagnoses referring only to the type and the degree of impairment and for the majority (61.4%) the cause was unknown. About half were sporadic cases within their families (considering three generations). For 44.2% at least one other case of an ID-related condition in the extended family was mentioned, with 293 (34.5%) representing potential familial cases. Conclusion Here we describe the epidemiological profile, the available diagnostics, etiology, family history and possible parental consanguinity of participants with ID of special education schools in the South of Brazil. The main results show the need for etiological diagnosis and uncover the relevance of potential hereditary cases in a population where consanguineous unions have a relatively low frequency (0,6%) and highlight the need for public health actions.

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“…[1] MR is characterized by subaverage general intellectual functioning accompanied with significant limitations in adaptive functioning. [2] MR is a chronic condition that often has no readily identifiable cause or treatment.…”

Section: Introductionmentioning

confidence: 99%

“…Coexisting symptoms may include aggressiveness, psychiatric symptoms, and self-harming behaviors. [1,2] Although desirable surgical outcome of patients with mental diseases or aggressiveness has been reported, surgical management of MR with aggressiveness and psychiatric symptoms is limited. [3–8] …”

Section: Introductionmentioning

confidence: 99%

Bilateral anterior capsulotomy and amygdalotomy for mental retardation with psychiatric symptoms and aggression

2017

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Familial mental retardation: a review and practical classification

Abstract: Familial mental retardation: a review and practical classification

Cited by 6 publications

References 58 publications

Evaluating fine perceptual-motor skills in children with mild intellectual disability

Evaluating fine perceptual-motor skills in children with mild intellectual disability

Etiology of intellectual disability in individuals from special education schools in the south of Brazil

Bilateral anterior capsulotomy and amygdalotomy for mental retardation with psychiatric symptoms and aggression

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