G F Ritchie
Overview
Explore the profile of G F Ritchie including associated specialties, affiliations and a list of published articles.
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Articles
6
Citations
339
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Recent Articles
1.
Sharp W, Walter J, Marsh W, Ritchie G, Hamburger S, Castellanos F
J Am Acad Child Adolesc Psychiatry
. 1999 Jan;
38(1):40-7.
PMID: 9893415
Objective: The investigation of attention-deficit/hyperactivity disorder (ADHD) in girls raises complex questions of referral bias and selection criteria. The authors sought to determine whether they could recruit a research sample...
2.
Castellanos F, Giedd J, Elia J, Marsh W, Ritchie G, Hamburger S, et al.
J Am Acad Child Adolesc Psychiatry
. 1997 May;
36(5):589-96.
PMID: 9136492
Objective: To determine the effects of methylphenidate (MPH) and dextroamphetamine (DEX) on tic severity in boys with attention-deficit/hyperactivity disorder (ADHD) comorbid with Tourette's syndrome. Method: A 9-week, placebo-controlled, double-blind crossover...
3.
Castellanos F, Giedd J, Marsh W, Hamburger S, Vaituzis A, Dickstein D, et al.
Arch Gen Psychiatry
. 1996 Jul;
53(7):607-16.
PMID: 8660127
Background: Anatomic magnetic resonance imaging (MRI) studies of attention-deficit hyperactivity disorder (ADHD) have been limited by small samples or measurement of single brain regions. Since the neuropsychological deficits in ADHD...
4.
Castellanos F, Ritchie G, Marsh W, Rapoport J
J Clin Psychiatry
. 1996 Mar;
57(3):116-22.
PMID: 8617696
Background: As part of a broader series of studies on unwanted repetitive behaviors, DSM-IV stereotypic movement disorder (SMD) was examined in an intellectually normal population. Repetitive nonfunctional behaviors, or stereotypies,...
5.
Castellanos F, Elia J, Kruesi M, Marsh W, Gulotta C, Potter W, et al.
Neuropsychopharmacology
. 1996 Feb;
14(2):125-37.
PMID: 8822535
Central dopaminergic activity has been assumed to play a role in the efficacy of stimulant drugs in attention deficit/hyperactivity disorder (ADHD), although supporting evidence has been scant. This study examined...
6.
Castellanos F, Elia J, Kruesi M, Gulotta C, Mefford I, Potter W, et al.
Psychiatry Res
. 1994 Jun;
52(3):305-16.
PMID: 7527565
Cerebrospinal fluid (CSF), plasma, and urinary monoamine metabolites were determined for 29 boys, aged 6-12, with attention-deficit hyperactivity disorder (ADHD). Levels of CSF 5-hydroxyindoleacetic acid (5-HIAA), homovanillic acid (HVA), and...