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Biomedical subjects

C Netley

Publications and source records attributed to C Netley.

29 records · Page 2Linked to original sources
PubMed1981

Turner syndrome in a pair of dizygotic twins: a single case study.

A pair of female dizygotic twins, one of whom had Turner syndrome (TS), was given a battery of psychological tasks. Results revealed that the TS twin showed deficits on tasks requiring spatial analyses, visual form discrimination, and visual memory. Differences in the serial recall characteristics on visual memory tasks were also noted. Results are discussed in terms of the reliability of the TS spatial deficit and the relationship between memory and spatial functioning.

Child↗
PubMed1980

The mental rotation task performance of Turner syndrome subjects.

Thirty-one female subjects with Turner syndrome (TS) and 31 normal females matched for age and verbal IQ were given a spatial task requiring the mental rotation of geometric figures. The results revealed a poorer performance by the TS group for most items involving rotations. The relationship between reaction time and angular distance on the rotation task was linear for both groups, with the TS group being significantly slower in the slope component of the relationship. The findings are discussed in terms of the mechanisms underlying the spatial deficiencies of TS subjects.

Adolescent↗
PubMed1979

Phenotypic vs. genotypic sex and cognitive abilities.

As a test of whether sex differences in cognitive functioning are determined by chromosomal constitution or hormonal events, eight subjects whose phenotypic sex differed from their genotypic sex were given a standard intelligence test. The results indicated that differences between verbal and nonverbal abilities corresponded to phenotypic rather than genotypic sex. The roles of environmental factors, sex steroid hormones and alternate genetic mechanisms in determining intellectual dimorphisms are examined.

Chromosomes, Human↗
PubMed1976

Mechanical ventilation of infants of less than 1,501 gm birth weight: Health, growth, and neurologic sequelae.

A two-year follow-up study of 73 low-birth-weight ( less than 1,501 gm) infants treated with positive pressure ventilation as neonates revealed the following: 24% incidence of lower respiratory tract infections during the first year; weight and height at two years averaging between tenth and twenty-fifth percentiles; major neurologic defects diagnosed in 14 boys (39%) and seven girls (18%) with one-year Bayley scores of less than 80. Major neurologic sequelae were closely associated with a neonatal history of seizures and intracranial hemorrhage and were more common in boys, survivors weighing more than 1,000 gm and following high-risk pregnancies.

Apnea↗
PubMed1975

Primary enuresis: relative success of three methods of treatment.

A total of 169 children with primary enuresis were treated by one of three methods--use of a special diet, imipramine, or a waking device (the Mozes detector). Of 64 who received the diet 1 (1.6%) was cured; of 62 who were treated with imipramine 13 (20.9%) were cured; and of 43 who used the detector 23 (53.5%) were cured. Results at follow-up remained substantially unchanged for cure. Improvement rate without cure during treatment was higher for the children treated with imipramine than for those treated with the detector, but at follow-up the reverse was true. Parents of children who received the special diet, because they were unimpressed by the rate of improvement, would not permit their children to continue this form of therapy for longer than 1 or 2 months.

Adolescent↗
PubMed1975

Parental characteristics in relation to diagnosis and neurological status in childhood psychosis.

Twenty-six psychotic children were examined by means of psychological tests and EEGs. The parents of these patients were also tested with the EPI and the Grid Test of Thought Disorder. The mothers of children with the symptom of autism tended to have some cognitive disorganization, which was less common in the mothers of children without the symptom. The extraversion and neuroticism scores of all parents were not markedly different from population statistics. The incidence of EEG abnormality in the children was high and not related to diagnosis or other criteria. These findings are interpreted as providing suggestive evidence for a two-factor theory of childhood psychosis. It is postulated that a neurological disorder is a necessary condition for the development of such a disorder; and that a second process related to parental characteristics is also involved, which has the effect of determining the particular symptomatic manifestations seen in the psychotic child.

Autistic Disorder↗
PubMed1971

The efficacy of dietary therapy for phenylketonuria.

Ninety-four patients with classical phenylketonuria are reviewed. Early treatment with a low phenylalanine diet usually results in normal or near-normal I.Q. Twenty-seven of the 38 patients diagnosed before 2 months of age have an I.Q. in the normal range. Of the other 11, six are dull normal, four are borderline and one is frankly retarded. Adequate reasons are given for the less than optimal results in these 11 early-treated patients. Twenty-one of the 28 patients presenting with abnormal electroencephalograms showed normal tracings soon after initiation of diet and four of the other seven improved. Nine of 12 on continuous anticonvulsant medication at the time of presentation were able to discontinue this soon after institution of dietary measures. Eighteen of the 19 sibling pair comparisons revealed a better ultimate I.Q. in the early-treated sib. A plea for early diagnosis by continuation of newborn screening programs and for centralization of diagnostic confirmation and treatment is made.

Age Factors↗