scholarly journals Best practices in clinical developmental structural neuroimaging

2020 ◽  
Author(s):  
Lea L. Backhausen ◽  
Megan Herting ◽  
Christian K. Tamnes ◽  
Nora C. Vetter
Keyword(s):  
Neurodevelopmental Disorders ◽  
Clinical Symptoms ◽  
Developmental Trajectories ◽  
Scientific Practices ◽  
Brain Morphometry ◽  
Hyperactivity Disorder ◽  
Oppositional Defiant ◽  
Hands On ◽  
The Impact ◽  
Immense Potential

Structural magnetic resonance imaging (sMRI) offers immense potential for increasing our understanding of how anatomical brain development relates to clinical symptoms of neurodevelopmental disorders, including attention deficit hyperactivity disorder (ADHD), conduct disorder (CD), and oppositional defiant disorder (ODD). Clinical developmental sMRI may help identify neurobiological risk factors or markers that may ultimately assist in diagnosis and treatment. However, researchers and clinicians aiming to conduct clinical developmental sMRI studies face several methodological challenges. This review offers hands-on guidelines for clinical developmental sMRI. First, we present brain morphometry metrics and review evidence on typical developmental trajectories throughout adolescence, together with atypical trajectories in ADHD, CD, and ODD. Next, we discuss challenges and good scientific practices in study design, image acquisition and analysis, and recent options to implement quality control. Finally, we discuss the impact of choices on statistical analysis and interpretation of results. We call for greater completeness and transparency in methods reports to advance understanding of brain structural alterations in neurodevelopmental disorders.

scholarly journals Best Practices in Structural Neuroimaging of Neurodevelopmental Disorders

2021 ◽  
Author(s):  
Lea L. Backhausen ◽  
Megan M. Herting ◽  
Christian K. Tamnes ◽  
Nora C. Vetter
Keyword(s):  
Best Practices ◽  
Neurodevelopmental Disorders ◽  
Clinical Symptoms ◽  
Developmental Trajectories ◽  
Scientific Practices ◽  
Structural Magnetic Resonance Imaging ◽  
Brain Morphometry ◽  
Hands On ◽  
Immense Potential ◽  
Structural Brain Alterations

AbstractStructural magnetic resonance imaging (sMRI) offers immense potential for increasing our understanding of how anatomical brain development relates to clinical symptoms and functioning in neurodevelopmental disorders. Clinical developmental sMRI may help identify neurobiological risk factors or markers that may ultimately assist in diagnosis and treatment. However, researchers and clinicians aiming to conduct sMRI studies of neurodevelopmental disorders face several methodological challenges. This review offers hands-on guidelines for clinical developmental sMRI. First, we present brain morphometry metrics and review evidence on typical developmental trajectories throughout adolescence, together with atypical trajectories in selected neurodevelopmental disorders. Next, we discuss challenges and good scientific practices in study design, image acquisition and analysis, and recent options to implement quality control. Finally, we discuss choices related to statistical analysis and interpretation of results. We call for greater completeness and transparency in the reporting of methods to advance understanding of structural brain alterations in neurodevelopmental disorders.

Cognitive Developmental Trajectories in Adult ADHD Patients and Controls: A Comparative Study

2021 ◽  
pp. 108705472097854
Author(s):  
Ji Sun Hong ◽  
Young Sik Lee ◽  
Minha Hong ◽  
Bongseog Kim ◽  
Yoo Sook Joung ◽  
...  
Keyword(s):  
Working Memory ◽  
Divided Attention ◽  
Intelligence Quotient ◽  
Adult Adhd ◽  
Clinical Symptoms ◽  
Developmental Trajectories ◽  
Healthy Controls ◽  
Hyperactivity Disorder ◽  
Full Scale Intelligence Quotient ◽  
Neuropsychological Functions

Objective: There is an updated conceptualization of whole-lifespan attention-deficit hyperactivity disorder (ADHD), promoted by awareness of probable persistence of impairment into adulthood. We investigated cognition trajectories from adolescence to mid-adulthood in ADHD. Method: Data of 240 patients with ADHD and 244 healthy controls (HCs) were obtained; clinical symptoms and neuropsychological functions were assessed using the various tests. Results: Compared to HCs, patients with ADHD except 35 to 44 age interval showed lower full scale intelligence quotient. They showed decreased verbal comprehensive scores except in the 35 to 44 age interval and working memory scores in all intervals. In the Comprehensive Attention Test, patients with ADHD showed increased working memory error frequencies except in the 15 to 17 age interval and divided attention omission error in all intervals. Conclusion: Adults with ADHD showed deficits not in simple attention but in complex attention, including divided attention and working memory.

Child and Adolescent Psychiatry

2014 ◽  
Author(s):  
Daniel T. Chrzanowski ◽  
Elisabeth B. Guthrie ◽  
Matthew B. Perkins ◽  
Moira A. Rynn
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Children And Adolescents ◽  
Attention Deficit ◽  
Neurodevelopmental Disorders ◽  
Externalizing Disorders ◽  
Autism Spectrum ◽  
Spectrum Disorder ◽  
Multiple Informants ◽  
Hyperactivity Disorder ◽  
Oppositional Defiant

Common disorders of children and adolescents include neurodevelopmental disorders (e.g., intellectual disability, autistic spectrum disorder, and learning disorders), internalizing disorders (e.g., mood and anxiety disorders), and externalizing disorders (e.g., oppositional defiant disorder and conduct disorder). The assessment of a child or adolescent patient always includes multiple informants, the context in which the child’s difficulties occur, and a functional behavioral assessment. Patients with autism spectrum disorder tend to have persistent deficits in social communication and social interaction, a restricted repertoire of behaviors and interests, and abnormal cognitive functioning. Children with disruptive mood dysregulation disorder experience chronic and severe irritability and frequent temper outbursts. Attention deficit hyperactivity disorder is characterized by hyperactivity, impulsivity, and inattention before 12 years of age. Behavior therapy has been effectively used to treat children and adolescents with neurodevelopmental disorders, attention deficit hyperactivity disorder, tic disorders, feeding and elimination disorders, and externalizing disorders. Fluoxetine is approved for treatment of depression in children and escitalopram, for adolescents. Methylphenidate and amphetamine preparations are first-line treatment for children with attention deficit hyperactivity disorder.

scholarly journals Design Fluency in Children with ADHD and Comorbid Disorders

2020 ◽  
Vol 10 (3) ◽  
pp. 172
Author(s):  
Anaïs Fournier ◽  
Bruno Gauthier ◽  
Marie-Claude Guay ◽  
Véronique Parent
Keyword(s):  
Brain Injuries ◽  
Cognitive Profile ◽  
Comorbid Disorders ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Oppositional Defiant ◽  
Design Fluency ◽  
Performance Results ◽  
Executive Impairment ◽  
The Impact

Background: Attention deficit/hyperactivity disorder (ADHD) is often associated with frontal executive impairment in children. Oppositional defiant disorder (ODD) and anxiety disorders (AD) frequently accompany ADHD, but the impact of these comorbid disorders on cognition remains elusive. The five-point test (FPT), a design fluency task, has been shown to be sensitive to neurological damage, specifically to frontal lobe lesions in patients with brain injuries. The purpose of this study was to compare the performances of neurotypical children with that of children with ADHD, ADHD-ODD, and ADHD-AD on the FPT in order to examine whether these groups could be distinguished from one another based on their cognitive profile. Methods: A total of 111 children aged 8 to 11 years old participated in the study. Six measures from the FPT were used to characterize their performance. Results: Statistically significant differences between groups were observed for five of the six FPT measures. Essentially, children with ADHD-ODD made more repeated designs than the three other groups (control p > 0.001, ADHD p = 0.008, ADHD-AD p = 0.008), while children with ADHD-AD produced fewer total and correct designs than the control and ADHD groups (p = 0.009). Conclusions: This suggests that comorbidities have an additive impact on the cognitive profile of children with ADHD. Design fluency may be a sensitive measure for capturing the subtle cognitive deficits that are likely to be involved in these disorders.

Attention Deficit and Disruptive Behavior Disorder Symptoms

2001 ◽  
Vol 17 (1) ◽  
pp. 25-35 ◽  
Author(s):  
G. Leonard Burns ◽  
James A. Walsh ◽  
David R. Patterson ◽  
Carol S. Holte ◽  
Rita Sommers-Flanagan ◽  
...  
Keyword(s):  
Attention Deficit ◽  
Rating Scales ◽  
Behavior Disorder ◽  
Disruptive Behavior Disorder ◽  
Subjective Rating ◽  
Time Interval ◽  
Assessment Procedure ◽  
Frequency Count ◽  
Hyperactivity Disorder ◽  
Oppositional Defiant

Summary: Rating scales are commonly used to measure the symptoms of attention deficit/hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), and conduct disorder (CD). While these scales have positive psychometric properties, the scales share a potential weakness - the use of vague or subjective rating procedures to measure symptom occurrence (e. g., never, occasionally, often, and very often). Rating procedures based on frequency counts for a specific time interval (e. g., never, once, twice, once per month, once per week, once per day, more than once per day) are less subjective and provide a conceptually better assessment procedure for these symptoms. Such a frequency count procedure was used to obtain parent ratings on the ADHD, ODD, and CD symptoms in a normative (nonclinical) sample of 3,500 children and adolescents. Although the current study does not provide a direct comparison of the two types of rating procedures, the results suggest that the frequency count procedure provides a potentially more useful way to measure these symptoms. The implications of the results are noted for the construction of rating scales to measure the ADHD, ODD, and CD symptoms.

Disorder-specific alterations of tactile sensitivity in neurodevelopmental disorders

2020 ◽  
Author(s):  
Jason He ◽  
Ericka Wodka ◽  
Mark Tommerdahl ◽  
Richard Edden ◽  
Mark Mikkelsen ◽  
...  
Keyword(s):  
Clinical Symptoms ◽  
Autism Spectrum ◽  
Typically Developing ◽  
Hyperactivity Disorder ◽  
The Core ◽  
Children With Asd ◽  
Tactile Detection ◽  
Spectrum Disorders ◽  
Sensory Processes ◽  
Core Symptoms

Alterations of tactile processing have long been identified in autism spectrum disorders (ASD) and attention-deficit/hyperactivity disorder (ADHD). However, the extent to which these alterations are disorder-specific, rather than disorder-general, and how they relate to the core symptoms of each disorder, remains unclear. We measured and compared tactile detection, discrimination and order judgment thresholds between a large sample of children with ASD, ADHD, ASD + ADHD combined and typically developing controls. The pattern of results suggested that while difficulties with tactile detection and order judgement were more common in children with ADHD, difficulties with tactile discrimination were more common in children with ASD. Strikingly, subsequent correlation analyses found that the disorder-specific alterations suggested by the group comparisons were also exclusively related to the core symptoms of each respective disorder. These results suggest that disorder-specific alterations of lower-level sensory processes exist and are specifically related to higher-level clinical symptoms of each disorder.

Role of Nutraceuticals in Health Promotion and Disease Prevention: A Review in the Indian Context

2020 ◽  
Vol 19 (2) ◽  
pp. 139-145
Author(s):  
Sheena Chhabra ◽  
Apurva Bakshi ◽  
Ravineet Kaur
Keyword(s):  
Health Promotion ◽  
Disease Prevention ◽  
Human Health ◽  
Health Issues ◽  
Scholarly Literature ◽  
Indian Context ◽  
The Impact ◽  
Immense Potential ◽  
Specific Health

Nutraceuticals have been around for quite some time. As the nomenclature suggests, they are placed somewhere between food (nutra-) and medicine (-ceuticals) in terms of their impact on human health. Researches have focused on the impact of various types of nutraceuticals on health, their efficacy in health promotion and disease prevention, and often on suitable uses of certain categories of nutraceuticals for specific health issues. However, we are still far from utilizing the immense potential of nutraceuticals for benefiting human health in a substantial manner. We review the available scholarly literature regarding the role of nutraceuticals in health promotion, their efficacy in disease prevention and the perception of nutraceuticals' health benefits by consumers. Thereafter we analyze the need for regulation of nutraceuticals and various provisions regarding the same.

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