Although Attention Deficit Hyperactivity Disorder (ADHD) is considered the most common child psychiatric disorder, little is known about the functional neurological deficits associated with this disorder. ADHD is now considered a chronic disorder in many affected individuals, with symptoms of overactivity, inattention, and impulsivity spanning from childhood through adulthood. As children these individuals are at-risk for academic failure and conduct problems. Adults who have retained the symptoms are more likely to experience occupational difficulties, abuse drugs, develop an antisocial personality disorder, and function less successfully in society. Functional neuroimaging techniques such as positron emission tomography (PET), that assess interactions between behavior and regional brain physiology may lead to the development of a better understanding of ADHD and more effective treatments. The objective of this Mentored Clinical Scientist Development Award is to develop the nominee's skills in applying functional neuroimaging techniques to better understand deficits in ADHD. The major goals of this award are to: 1) Develop into an independent researcher; 2) Study brain-environment interactions in ADHD; 3) Acquire expertise in functional neuroimaging techniques (i.e., PET) as it can be applied to ADHD; 4) Develop an independent laboratory studying brain-environment processes in ADHD. Skills acquired in the training program will be applied to pilot studies to assess the effect of task parameters and methylphenidate on regional cerebral blood flow (rCBF) in PET.
Specific aims of the pilot studies are: 1) To assess the effect of practice on rCBF and task performance in ADHD and Control adults; 2) To examine how chronic methylphenidate administration in ADHD adults modulates the effects of practice on task performance and rCBF; 3) Establish further areas of study for the postaward phase for the candidate.

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Clinical Investigator Award (CIA) (K08)
Project #
5K08MH001053-06
Application #
6391305
Study Section
Clinical Neuroscience and Biological Psychopathology Review Committee (CNBP)
Program Officer
Wynne, Debra K
Project Start
1997-07-01
Project End
2003-06-30
Budget Start
2001-07-01
Budget End
2003-06-30
Support Year
6
Fiscal Year
2001
Total Cost
$110,814
Indirect Cost
Name
University of Maryland Baltimore
Department
Psychiatry
Type
Schools of Medicine
DUNS #
003255213
City
Baltimore
State
MD
Country
United States
Zip Code
21201
Miller, Meghan; Hanford, Russell B; Fassbender, Catherine et al. (2011) Affect recognition in adults with ADHD. J Atten Disord 15:452-60
Schweitzer, Julie B; Lee, Douglas O; Hanford, Russell B et al. (2004) Effect of methylphenidate on executive functioning in adults with attention-deficit/hyperactivity disorder: normalization of behavior but not related brain activity. Biol Psychiatry 56:597-606
Schweitzer, Julie B; Lee, Douglas O; Hanford, Russell B et al. (2003) A positron emission tomography study of methylphenidate in adults with ADHD: alterations in resting blood flow and predicting treatment response. Neuropsychopharmacology 28:967-73