Jamie Piercy - Academia.edu (original) (raw)
Papers by Jamie Piercy
Journal of the International Neuropsychological Society : JINS, Jan 5, 2015
We studied the associations between early postnatal growth gains and neuropsychological outcome i... more We studied the associations between early postnatal growth gains and neuropsychological outcome in very preterm-born children. Specifically, we wished to establish whether relationships exist between gains in head circumference (relative to gains in body-weight or length), from birth to hospital discharge, and intellectual, language, or motor, performance at preschool age. We used data from 127 preschoolers, born <33 weeks, all graduates of the William Beaumont Hospital Neonatal Intensive-Care Unit (NICU) in Royal Oak, MI. Cognitive, motor, and language outcomes were evaluated using the Wechsler Preschool and Primary Scales of Intelligence-Revised, Peabody Developmental Scales - 2nd Edition, and the Preschool Language Scale - 3rd Edition, respectively. Differences between Z-scores at birth and hospital discharge, calculated for three anthropometric measures (head circumference, weight, length), were variables of interest in separate simultaneous multiple regression procedures. We...
Postgraduate Medicine, 2012
Focusing on behavioral criteria for attention-deficit/hyperactivity disorder (ADHD) diagnosis lea... more Focusing on behavioral criteria for attention-deficit/hyperactivity disorder (ADHD) diagnosis leads to considerable neuropsychological profile heterogeneity among diagnosed children, as well as variable response to methylphenidate (MPH) treatment. Documenting "cold" executive working memory (EWM) or "hot" self-regulation (SR) neuropsychological impairments could aid in the differential diagnosis of ADHD subtypes and may help to determine the optimal MPH treatment dose. In this study, children with ADHD inattentive type (n = 19), combined type (n = 33), and hyperactive-impulse type (n = 4) underwent randomized controlled MPH trials; neuropsychological, behavioral, and observational data were collected to evaluate the children's responses. Those with moderate or significant baseline EWM/SR impairment showed robust MPH response, whereas response for those with lower baseline impairment was equivocal. Implications for medication use and titration, academic achievement, and long-term treatment efficacy are examined. result from a shared genetic etiology, 20 a predisposition to comorbid disorders (eg, conduct problems) inadvertently leading to poor achievement, 21 behavioral interference with academic performance (eg, noncompliance, limited ontask behavior), 22 and/or cognitive and neuropsychological deficits. Although ADHD is widely recognized as a frontalsubcortical circuit disorder, 5,25 behavioral criteria and rating scales are often used for diagnosis, which leads to considerable symptom heterogeneity 26 as well as ratings that are insensitive to neurocognitive functioning. 27 Furthermore, most frontal-subcortical circuit disorders lead to impaired attention, 28 rendering the differential diagnosis of ADHD difficult when behavioral criteria are used. 29
Journal of the International Neuropsychological Society : JINS, Jan 5, 2015
We studied the associations between early postnatal growth gains and neuropsychological outcome i... more We studied the associations between early postnatal growth gains and neuropsychological outcome in very preterm-born children. Specifically, we wished to establish whether relationships exist between gains in head circumference (relative to gains in body-weight or length), from birth to hospital discharge, and intellectual, language, or motor, performance at preschool age. We used data from 127 preschoolers, born <33 weeks, all graduates of the William Beaumont Hospital Neonatal Intensive-Care Unit (NICU) in Royal Oak, MI. Cognitive, motor, and language outcomes were evaluated using the Wechsler Preschool and Primary Scales of Intelligence-Revised, Peabody Developmental Scales - 2nd Edition, and the Preschool Language Scale - 3rd Edition, respectively. Differences between Z-scores at birth and hospital discharge, calculated for three anthropometric measures (head circumference, weight, length), were variables of interest in separate simultaneous multiple regression procedures. We...
Postgraduate Medicine, 2012
Focusing on behavioral criteria for attention-deficit/hyperactivity disorder (ADHD) diagnosis lea... more Focusing on behavioral criteria for attention-deficit/hyperactivity disorder (ADHD) diagnosis leads to considerable neuropsychological profile heterogeneity among diagnosed children, as well as variable response to methylphenidate (MPH) treatment. Documenting "cold" executive working memory (EWM) or "hot" self-regulation (SR) neuropsychological impairments could aid in the differential diagnosis of ADHD subtypes and may help to determine the optimal MPH treatment dose. In this study, children with ADHD inattentive type (n = 19), combined type (n = 33), and hyperactive-impulse type (n = 4) underwent randomized controlled MPH trials; neuropsychological, behavioral, and observational data were collected to evaluate the children's responses. Those with moderate or significant baseline EWM/SR impairment showed robust MPH response, whereas response for those with lower baseline impairment was equivocal. Implications for medication use and titration, academic achievement, and long-term treatment efficacy are examined. result from a shared genetic etiology, 20 a predisposition to comorbid disorders (eg, conduct problems) inadvertently leading to poor achievement, 21 behavioral interference with academic performance (eg, noncompliance, limited ontask behavior), 22 and/or cognitive and neuropsychological deficits. Although ADHD is widely recognized as a frontalsubcortical circuit disorder, 5,25 behavioral criteria and rating scales are often used for diagnosis, which leads to considerable symptom heterogeneity 26 as well as ratings that are insensitive to neurocognitive functioning. 27 Furthermore, most frontal-subcortical circuit disorders lead to impaired attention, 28 rendering the differential diagnosis of ADHD difficult when behavioral criteria are used. 29