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A dynamic developmental theory of attention-deficit/hyperactivity disorder (ADHD) predominantly hyperactive/impulsive and combined subtypes.
- T. Sagvolden, E. Johansen, H. Aase, V. Russell
- Psychology, Medicine
- The Behavioral and brain sciences
- 1 June 2005
Attention-deficit/hyperactivity disorder (ADHD) is currently defined as a cognitive/behavioral developmental disorder where all clinical criteria are behavioral. Inattentiveness, overactivity, and… Expand
Rodent Models of Attention-Deficit/Hyperactivity Disorder
- T. Sagvolden, V. Russell, H. Aase, E. Johansen, M. Farshbaf
- Psychology, Medicine
- Biological Psychiatry
- 1 June 2005
An ideal animal model should be similar to the disorder it models in terms of etiology, biochemistry, symptomatology, and treatment. Animal models provide several advantages over clinical research:… Expand
The Conscious Perception of the Sensation of Fatigue
- A. S. C. Gibson, D. Baden, +5 authors T. D. Noakes
- Psychology, Medicine
- Sports medicine
- 2003
In this review, fatigue is described as a conscious sensation rather than a physiological occurrence. We suggest that the sensation of fatigue is the conscious awareness of changes in subconscious… Expand
Animal models of attention-deficit hyperactivity disorder
- V. Russell, T. Sagvolden, E. Johansen
- Psychology, Medicine
- Behavioral and Brain Functions
- 15 July 2005
Although animals cannot be used to study complex human behaviour such as language, they do have similar basic functions. In fact, human disorders that have animal models are better understood than… Expand
Neurobiology of animal models of attention-deficit hyperactivity disorder
- V. Russell
- Psychology, Medicine
- Journal of Neuroscience Methods
- 15 April 2007
Attention-deficit hyperactivity disorder (ADHD) is a heterogeneous, highly heritable, disorder resulting from complex gene-gene and gene-environment interactions. The defining symptoms of… Expand
Response variability in Attention-Deficit/Hyperactivity Disorder: a neuronal and glial energetics hypothesis
- V. Russell, R. Oades, +4 authors T. Sagvolden
- Psychology, Medicine
- Behavioral and Brain Functions
- 23 August 2006
1. AbstractBackgroundCurrent concepts of Attention-Deficit/Hyperactivity Disorder (ADHD) emphasize the role of higher-order cognitive functions and reinforcement processes attributed to structural… Expand
Hypodopaminergic and hypernoradrenergic activity in prefrontal cortex slices of an animal model for attention-deficit hyperactivity disorder — the spontaneously hypertensive rat
- V. Russell
- Psychology, Medicine
- Behavioural Brain Research
- 10 March 2002
Evidence supports dysfunction of dopaminergic and noradrenergic systems in patients with attention-deficit hyperactivity disorder (ADHD). Noradrenergic and dopaminergic systems exert distinct… Expand
Differences between electrically-, ritalin- and d-amphetamine-stimulated release of [3H]dopamine from brain slices suggest impaired vesicular storage of dopamine in an animal model of…
- V. Russell, A. D. Villiers, T. Sagvolden, M. Lamm, J. J. F. Taljaard
- Chemistry, Medicine
- Behavioural Brain Research
- 1 July 1998
The spontaneously hypertensive rat (SHR) has behavioural characteristics which make it a suitable animal model for Attention-Deficit Hyperactivity Disorder (ADHD). The drugs of choice in the… Expand
Maternal separation alters nerve growth factor and corticosterone levels but not the DNA methylation status of the exon 17 glucocorticoid receptor promoter region
- W. Daniels, L. Fairbairn, +4 authors Dan J Stein
- Biology, Medicine
- Metabolic Brain Disease
- 9 October 2009
Separating rat pups from their mothers during the early stages of life is an animal model commonly used to study the development of psychiatric disorders such as anxiety and depression. The present… Expand
Origins of altered reinforcement effects in ADHD
- E. Johansen, P. Killeen, +5 authors T. Sagvolden
- Psychology, Medicine
- Behavioral and Brain Functions
- 18 February 2009
Attention-deficit/hyperactivity disorder (ADHD), characterized by hyperactivity, impulsiveness and deficient sustained attention, is one of the most common and persistent behavioral disorders of… Expand