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PubMed1980

Neurotoxic effects of heavy lead exposure determined with psychological tests.

Nine men exposed to high concentrations of lead in their work at a battery plant were examined with the aid of psychological tests. Intelligence tests indicated normal intellectual potential, but memory, attention, concentration and psychomotor performance were severely impaired. The clinical picture indicated an organic mental syndrome. Psychological tests are recommended for clinical evaluation of neurotoxic effects of lead exposure.

Adult↗
PubMed1995

Speech function following maxillectomy reconstructed by rectus abdominis myocutaneous flap.

Post-surgical maxillary defects have recently been reconstructed by microvascularized free flaps. However, few reports have evaluated the resulting speech function. This study compared the speech intelligibility of four maxillectomy patients who underwent reconstruction by rectus abdominis myocutaneous flaps (RAMCF) with that of four non-reconstructed patients who were treated with split-skin grafts and prostheses, to explore ways of achieving better speech function. Speech function was assessed by a Japanese language speech intelligibility test. Intelligibility scores ranged from 57.3% to 75.8% (mean, 70.4%) in the non-reconstructed group and from 66.2% to 77.2% (mean, 71.0%) in the reconstructed group. An analysis of articulatory manners and sites revealed that speech disorders resulted mainly from poor oronasal separation in the non-reconstructed group and from incorrect linguopalatal contact in the reconstructed group, especially for linguodentoalveolar and linguovelar sounds. Therefore, for higher speech function in the reconstructed group, dentoalveolar and palatal contours of the maxilla must be restored as closely as possible. This must also be done in patients whose maxillae are reconstructed by other types of microvascularized myocutaneous or cutaneous flaps that have similar postoperative palatal contours.

Adult↗
PubMed1996

[Intelligent quotient of obese children and adolescents by the Weschler scale].

The intellectual characteristics of 65 obese children and adolescents (weight for height > or = 140%), aged 8 to 13 years and 11 months, were compared to those of 35 eutrophic children and adolescents (weight for height between 90 and 110%; and stature for age > 95%) of the same age group, utilizing the Wechsler Intelligence Scale for Children--WISC. Children and adolescents of the two groups were paired according to age groups, schooling level and socioeconomic condition. The obese group was composed of new patients assisted at the Department of Pediatrics of the Federal University of S. Paulo (Escola Paulista de Medicina), Brazil. The control group was made up of children from public primary schools, from the same geographical area as those studied. The eutrophic group presented significantly better performance in the intelligence test (Intelligence Quotient--IQ) than the obese group (average IQ--91 x 85; p < 0.05). Eutrophic children and adolescents revealed a wider range of interests, better capacity for social adaptability as well as greater speed and dexterity. Although weak, there was a positive correlation between income level, weight/stature relation (W/S) and IQ. There was no correlation between IQ and level of schooling. The eutrophic boys from higher income levels showed better perceptual and spacial organizing ability and a wider range of interests than those from the lower income groups. In spite of the fact that all the average IQ results presented consistently favored the eutrophic in relation to the obese, it is not possible to confirm one group's superiority over the other, due to the wide range of intervenient factors involved in the intelligence process.

Adolescent↗
PubMed1992

[Neuropsychological and behavioral status of children with congenital heart diseases].

39 children patients with acyanoid ventricular septal defect or atrial septal defect who received cardiac operation, were compared with a age and sex matched normal control group on a battery of neuro-psychological tests, intelligence tests and children behavioral checklist. Subject were examined prior to cardiac operation and 6 months after the operation. 12 of 39 children received postoperation tests. Among them, 8 were in younger children group (5 to 8 years old), 4 were in elder children group (9 to 14 years old). Results are: 1. Neuropsychological development status: (1) Full IQ(FIQ), Verbal IQ(VIQ), and Performance IQ(PIQ) of the group with heart diseases were lower than those of normal controls, and there were significant differences. (2) In cardiac patients significant impairments were found on some scores of the Halstead-Reitan Battery in comparison with the normal control group. These findings imply that patients before cardiac operation had generalized impairments in neuropsychological function. (3) Significantly more behavioral problems especially the so called externalizing and internalizing behavioral problems, were found in cardiac patients than the controls. 2. Comparison of the pre and post operative scores were made: Both groups (cardiac patients and controls) showed significant improvements in VIQ, PIQ, FIQ and most of H-R subtests scores 6 months later. But the improvements following surgery were attributed to practice effects.

Adolescent↗
PubMed1996

Concurrent validity study of the Slosson Intelligence Test-Revised in mental retardation testing.

The new Slosson Intelligence Test-Revised and the recommended abbreviated battery of the Stanford-Binet Intelligence Scale: Fourth Edition were given to individuals whose Stanford-Binet IQs ranged from 36 to 110. The Slosson-R correlated highly with the Stanford-Binet, r = .92. However, except for the moderately retarded category, the Slosson-R unsatisfactorily matched the Stanford-Binet's assignment of individuals to IQ categories. In contrast, when all individuals were classified as either having or not having mental retardation, the match rate was much better. The Slosson-R can adequately screen for mental retardation, but its ability to accurately assign individuals to specific IQ categories appears to be limited.

Adolescent↗
PubMed2004

Application of clinically-derived malingering cutoffs on the California Verbal Learning Test and the Wechsler Adult Intelligence Test-Revised to an analog malingering study.

This study examined the comparability of the California Verbal Learning Test (CVLT) and subtests of the Wechsler Adult Intelligence Scale-Revised (WAIS-R) in clinically identified malingerers and undergraduates instructed to malinger in an analog design. Cutoffs on these measures were derived from various clinical samples of identified malingerers and were applied to these simulating malingerers to distinguish them from controls. Simulating malingerers performed significantly more poorly than controls on both tests and clinically derived cutoffs accurately discriminated between groups. As compared to the clinically-based findings from which these cutoffs were derived, sensitivity (detection of simulating malingering) tended to be lower, specificity (detection of not malingering) tended to be higher, but the overall classification rate was only slightly lower. These findings were consistent across the CVLT and subtests of the WAIS-R, several different sets of clinically derived cutoffs, and two base rates. Reasons for this pattern of findings are discussed, as are implications of the similarity between clinical and analog studies of malingering.

Adult↗