Torleiv Høien

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MRI technique was used to examine the size and symmetry of the plana temporale in 19 dyslexic students in grade 8 and in carefully matched control subjects. The results demonstrated a high frequency of planum symmetry among the dyslexics (70%) whereas symmetry was observed in only 30% of the control subjects. It was not possible to demonstrate any clear(More)
Impaired social interaction, communication and imaginative skills characterize autistic syndromes. In these syndromes urinary peptide abnormalities, derived from gluten, gliadin, and casein, are reported. They reflect processes with opioid effect. The aim of this single blind study was to evaluate effect of gluten and casein-free diet for children with(More)
The purpose of this study was to investigate the power of early measures of phonological skills (phonemic awareness, rapid naming, short-term memory) in predicting later reading skills at various points of time. About 70 children were followed from the end of kindergarten to the middle of grade 2. Correlation analyses were performed as well as a linear(More)
OBJECTIVE To illuminate a possible three-way association between dyslexia, immune disorders, and left-handedness. Geschwind's, Behan's, and Galaburda's hypotheses have been of special interest in this connection. DESIGN Statistical analysis based on general assessment of the prevalence of the three aforementioned conditions. PARTICIPANTS There were 734(More)
Current models of word recognition are mainly constructed within the frameworks of either dual-route or connectionist theories. The most important test of a word recognition model is how it succeeds in accounting for various reading behaviors. In the present paper dual-route and connectionist word recognition models are briefly described and evaluated. As a(More)
In order to examine the relationships among various phonological skills and reading comprehension, Latvian children were followed from grade 1 to grade 2 and were tested with a battery of phonological, word reading, and reading comprehension tasks. A principal component analysis of the phonological tasks revealed three salient factors: a phonemic awareness(More)
Written spelling was assessed in 16 subjects with dementia of the Alzheimer type (DAT) using an information processing approach. The results were compared to the performance in a group of healthy elderly subjects. The Alzheimer subjects scored significantly lower in word spelling and nonword spelling ability than the controls (F(1, 7) = 187, p < .0001), and(More)
The planum temporale is a triangular region on the upper surface of the temporal lobe. This area of the brain is important for language processing and shows a left-right asymmetry of size in most brains. Particular interest has been focused on the size and asymmetry of the planum temporale in brains of individuals with developmental dyslexia. Magnetic(More)
After reviewing the various theories trying to explain the different forms of dyslexia, the author attempts to show how studying the different stages in learning to read and the processes brought into play at each stage allow for a different approach to the problem. Based on work done by Utha Frith, the author sets out three main strategies that go together(More)
The reading aloud of single words in 16 subjects with dementia of the Alzheimer's type (DAT) was compared with the performance of control subjects. The assessment included a computerised test-battery designed to assess word recognition ability and the efficiency of the two underlying reading strategies; the lexical and the non-lexical strategy. The DAT(More)