82 research outputs found
Development of Sustained Attention Assessed Using the Continuous Performance Test among Children 6-15 Years of Age
Schizotypy in Community Samples: The Three-Factor Structure and Correlation with Sustained Attention
The Taipei Adolescent Twin/Sibling Family Study I: Behavioral Problems, Personality Features, and Neuropsychological Performance
Performance on the Wisconsin Card Sorting Test among adolescents in Taiwan: norms, factorial structure, and relation to schizotypy
ANALYSIS OF VERTICAL TRANSMISSION OF SCHIZOTYPY: A STUDY OF TAIWANESE JUVENILE TWINS AND THEIR PARENTS
Literature, Logic and Mathematics in the Fourteenth Century
This thesis assesses the extent to which fourteenth-century Middle English poets were interested in, and influenced by, traditions of thinking about logic and mathematics. It attempts to demonstrate the imaginative appeal of the logical problems called sophismata, which postulate absurd situations while making use of a stable but evolving, and distinctly recognisable, pool of examples. Logic and mathematics were linked. The ‘puzzle-based’ approach of late-medieval logic stemmed in part from earlier arithmetical puzzle collections. The fourteenth-century application of the ‘sophismatic’ method to problems concerned with what might now be called ‘Physics’ or ‘Mechanics’ sustained the symbiotic relationship of the two disciplines. An awareness of the importance of this tradition is perhaps indicated by the prominence of logical and mathematical tropes and scenarios in the works of three authors in particular: Geoffrey Chaucer, John Gower and the Gawain-poet. It is argued that, in the poetry of all three, what may loosely be called ‘sophismatic tropes’ are used to present concerns that the poets share with the logical and mathematical thought of their time. Certain themes recur, including the following: problematic promises; problematic reference to non-existent things; problems associated with divisibility, limits and the idea of a continuum; and, most importantly, problems focused on the contingency, or otherwise, of the future. The debate over future contingency was one of the fiercest scholastic controversies of the fourteenth century, with profound implications for both logical and theological thought. It is suggested here that the scholastic debate about future contingency has a visible impact on Chauntecleer’s prophetic dream in the Nun’s Priest’s Tale, Troilus’s apparent determinism in Troilus and Criseyde, Gower’s presentation of causation in the Confessio Amantis, and the Gawain-poet’s treatment of covenants. The conclusion reached is that fourteenth-century logical and mathematical texts had a significantly wider cultural effect than is generally recognised
Diagnosis of zygosity by questionnaire and polymarker polymerase chain reaction in young twins
Genetic and Environmental Influences on the Wisconsin Card Sorting Test Performance in Healthy Adolescents: A Twin/Sibling Study
This study aimed to estimate the relative contributions from genetic and environmental factors to the Wisconsin Card Sorting Test (WCST) performance, a widely used measurement for assessing frontal lobe function . Participants included 350 pairs of twins (257 MZ and 93 DZ) and 47 same- sex sib- pairs, aged 12-16 years, systematically recruited from junior high schools in Taipei. A computerized version of the WCST was administered for each participant and its nine indexes were used for subsequent analysis. Univariate analysis in structural equation modeling was performed for each WCST index using Mx program. The ACE model for each WCST index indicated no significant genetic influence, whereas the shared environmental influence ranged from 30 to 38% for four indexes ( Perseverative Errors, Perseverative Responses, Categories Achieved, and Conceptual Level Responses). We concluded that WCST performance might be an indicator more for environmental insult than for genetic influences on frontal lobe function
DEVELOPMENT OF SUSTAINED ATTENTION ASSESSED USING THE CONTINUOUS PERFORMANCE TEST AMONG CHILDREN 6-15 YEARS OF AGE.
The Continuous Performance Test (CPT) is a widely used measure of sustained attention, which may rely on the efficiency of cognitive inhibition. We examined the relationships of age and sex with CPT performance among 341 randomly selected school children 6-15 years of age. Multiple regression analyses revealed that the hit rate, false alarm rate, and sensitivity of both the undegraded and the degraded CPT were associated with age by a quadratic relationship. The age-development curves for the hit rate and sensitivity were convex, whereas that for the false alarm rate was concave. Sex was associated with the hit rate and sensitivity on the degraded CPT only. Our findings are consistent with the hypothesis that sustained attention develops during the primary school ages. The data reported are essential for identifying children with conditions associated with sustained attention deficit, such as attention-deficit hyperactivity disorder, as well as those at an increased risk for developing schizophrenia
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