Genetic influences on mechanically-assessed activity level in childrenAlexis C Wood
MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Kings College London, UK
J Child Psychol Psychiatry 48:695-702. 2007
..Yet it is poorly understood, due partly to limitations on parent and teacher ratings, which are typically used as measurements of these symptoms...
Is overactivity a core feature in ADHD? Familial and receiver operating characteristic curve analysis of mechanically assessed activity levelAlexis C Wood
Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King s College London, London, UK
J Am Acad Child Adolesc Psychiatry 48:1023-30. 2009
..Furthermore, we aimed to investigate the degree of shared familial influences on these measures and the ADHD diagnosis...
Separation of cognitive impairments in attention-deficit/hyperactivity disorder into 2 familial factorsJonna Kuntsi
MRC Social, Genetic, and Developmental Psychiatry Centre, Institute of Psychiatry, King s College London, London SE5 8AF, United Kingdom
Arch Gen Psychiatry 67:1159-67. 2010
..A better understanding of the etiological pathways is important for the development of targeted interventions and for identification of suitable intermediate phenotypes for molecular genetic investigations...
Hyperactive-impulsive symptom scores and oppositional behaviours reflect alternate manifestations of a single liabilityAlexis C Wood
MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Kings College London, De Crespigny Park, London, SE5 8AF, UK
Behav Genet 39:447-60. 2009
..In middle childhood, symptoms of hyperactivity-impulsivity and oppositional behaviour may represent the same underlying liability, whereas the inattentive domain is more distinct...
The genetic association between ADHD symptoms and reading difficulties: the role of inattentiveness and IQYannis Paloyelis
MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King s College London, UK
J Abnorm Child Psychol 38:1083-95. 2010
....
Actigraph data are reliable, with functional reliability increasing with aggregationAlexis C Wood
Institute of Psychiatry, Kings College London, London, England
Behav Res Methods 40:873-8. 2008
..We also examined possible instrumental effects on actigraph data and found these to be nonsignificant, further supporting the reliability and validity of actigraph data as a method of activity level assessment...
High heritability for a composite index of children's activity level measuresAlexis C Wood
Social, Genetic and Developmental Psychiatry, Institute of Psychiatry, P O Box 80, De Crespigny Park, London SE5 8AF, UK
Behav Genet 38:266-76. 2008
..The high heritabilities found are encouraging in this respect...
Why cognitive performance in ADHD may not reveal true potential: findings from a large population-based sampleJonna Kuntsi
MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King s College London, De Crespigny Park Box P080, London SE5 8AF, UK
J Int Neuropsychol Soc 15:570-9. 2009
..The degree to which cognitive impairments in ADHD can be modulated by energetic or motivational factors has important implications for clinical and educational interventions...