| 1. |
- Gillberg, Christopher, 1950, et al.
(författare)
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Handedness in Swedish 10-year-olds. Some background and associated factors.
- 1984
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Ingår i: Journal of Child Psychology and Psychiatry, and Allied Disciplines. - 0021-9630. ; 25:3, s. 421-432
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Tidskriftsartikel (refereegranskat)abstract
- Forty-five left-handed and 46 right-handed 10-year-old children were subjected to a limited set of neurological tests and a square tracing task. 'Pathological' handedness was diagnosed in cases showing poor performance with the non-preferred hand on the squares task. The frequency of left-handedness in the population was estimated at 9.2%. The boy : girl ratio was 1.6:1. 'Pathological' handedness was twice as common among left-handers as among right-handers. Neurological dysfunction was more common in 'pathological' handers, especially left-handers. Reduced pre-. peri- and neonatal optimality was seen in boys with 'pathological handedness'. School achievement problems and behaviour problems were much more common in left-handed boys than in other study groups. The results lend partial support for the extended pathological left-handedness model recently hypothesized by Bishop, but it is suggested that left-handedness in boys is more often a symptom of pathological shift of handedness than is left-handedness in girls.
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| 2. |
- Gillberg, Christopher, 1950, et al.
(författare)
-
Hyperkinetic disorders in seven-year-old children with perceptual, motor and attentional deficits.
- 1983
-
Ingår i: Journal of Child Psychology and Psychiatry, and Allied Disciplines. - 0021-9630. ; 24:2, s. 233-246
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Tidskriftsartikel (refereegranskat)abstract
- One hundred and forty-one seven-year-old Swedish children took part in an extensive neuropsychiatric study involving total population samples of children who had shown perceptual, motor and attentional deficits in pre-school, and blindly examined comparison children. The present paper reports on generalized hyperkinesis, i.e. hyperactivity in the child in all of three different assessment settings. About a third of children diagnosed according to strict criteria as suffering from 'Minimal Brain Dysfunction' showed generalized hyperkinesis. In children without perceptual-motor deficits, hyperkinesis was very much rarer. A total population frequency for generalized hyperkinesis in the range of 1-3% is reported as probable. Heredity for delayed maturation, non-optimal pre-, peri- and neonatal factors and adverse psychosocial factors were found to interact in the shaping of the disorder.
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| 3. |
- Gillberg, Christopher, 1950
(författare)
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Infantile autism and other childhood psychoses in a Swedish urban region. Epidemiological aspects.
- 1984
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Ingår i: Journal of Child Psychology and Psychiatry, and Allied Disciplines. - 0021-9630. ; 25:1, s. 35-43
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Tidskriftsartikel (refereegranskat)abstract
- A total population screening of children born during 1962-1976 and living in the Gothenburg region at the end of 1980 was carried out in order to obtain prevalence figures for infantile autism and other childhood psychoses. It was found that the prevalence figure for infantile autism was 2.0 per 10,000 and for other childhood psychoses 1.9 per 10,000. Boys were much more often affected by infantile autism than girls. In the case of other psychoses, no such over-representation was seen. A majority of the children were mentally retarded, and only 4% had tested IQs exceeding 100. The results are in good agreement with the three earlier epidemiological studies concerned with childhood psychosis.
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| 4. |
- Gillberg, Christopher, 1950, et al.
(författare)
-
Perceptual, motor and attentional deficits in six-year-old children. Epidemiological aspects.
- 1982
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Ingår i: Journal of Child Psychology and Psychiatry, and Allied Disciplines. - 0021-9630. ; 23:2, s. 131-144
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Tidskriftsartikel (refereegranskat)abstract
- A total population study of 4797 six-year-old children attending the public preschools in the city of Göteborg (Gothenburg) has been carried out. A questionnaire with 34 questions about MBD-related problems was distributed to all pre-school teachers. Three thousand four hundred and forty-eight questionnaires were completed. Factor analysis of the questionnaire and empirical results from a pilot study provided the basis for selecting for further study children with pre-school signs and symptoms suggestive of MBD. Neurological, psychiatric and psychological assessment of 82 children with, and 59 children without, pre-school symptoms of MBD revealed that in the index groups 41% of the children, and in the control group 3% of the children, had MBD. Extrapolation procedures gave a total population frequency of 1.2% with severe MBD and a further 5.9% with mild-moderate MBD. A very large questionnaire refusal rate (28%) is discussed. The relevance of the calculated frequency figures, especially as regards the mild-moderate MBD category, cannot be properly evaluated until long-term follow-up has been completed.
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| 5. |
- Gillberg, Christopher, 1950
(författare)
-
Perceptual, motor and attentional deficits in Swedish primary school children. Some child psychiatric aspects.
- 1983
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Ingår i: Journal of Child Psychology and Psychiatry, and Allied Disciplines. - 0021-9630. ; 24:3, s. 377-403
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Tidskriftsartikel (refereegranskat)abstract
- One hundred and forty-one seven-year-old children took part in an extensive neuropsychiatric study. Eight-two of these children had been selected and sampled from a group of 3448 children for whom questionnaires concerning motor control, perception and attention/behaviour had been completed by pre-school teachers. They all showed pre-school signs of both attention deficit and motor/perception dysfunction. The fifty-nine remaining children had been randomly sampled from the group of 3448 children to serve as controls. The study was carried out in a blind fashion. The present paper reports on results of the neuropsychiatric study with special regard to psychiatric disorders in so-called MBD syndromes, defined in accordance with operational criteria. Prevalence figures for marked psychiatric abnormality in MBD were shown to be higher than for psychiatric abnormality in children with 'neuroepileptic' disorders in the Isle of Wight study. Psychotic behaviour was found to be specifically associated with MBD. Hereditary and neuropathogenic factors singly or together possibly caused the 'MBD handicap'. Non-optimal psychosocial factors appear to interact with the MBD syndrome in the moulding of psychiatric disorders.
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