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Plowden KO, Legg T, Wiley D. Attention deficit/hyperactivity disorder in adults: A case study. Arch Psychiatr Nurs 2022; 38:29-35. [PMID: 35461644 DOI: 10.1016/j.apnu.2021.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 09/06/2021] [Accepted: 12/04/2021] [Indexed: 11/02/2022]
Abstract
Attention-Deficit/Hyperactivity Disorder (ADHD) is often misdiagnosed or mistreated in adults because it is often thought of as a childhood problem. If a child is diagnosed and treated for the disorder, it often persists into adulthood. In adult ADHD, the symptoms may be comorbid or mimic other conditions making diagnosis and treatment difficult. Adults with ADHD require an in-depth assessment for proper diagnosis and treatment. The presentation and treatment of adults with ADHD can be complex and often requires interdisciplinary care. Mental health and non-mental health providers often overlook the disorder or feel uncomfortable treating adults with ADHD. The purpose of this manuscript is to discuss the diagnosis and management of adults with ADHD.
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Affiliation(s)
| | - Timothy Legg
- University of North Dakota, United States of America
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Kahathuduwa CN, Wakefield S, West BD, Blume J, Dassanayake TL, Weerasinghe VS, Mastergeorge A. Effects of L-theanine-caffeine combination on sustained attention and inhibitory control among children with ADHD: a proof-of-concept neuroimaging RCT. Sci Rep 2020; 10:13072. [PMID: 32753637 PMCID: PMC7403383 DOI: 10.1038/s41598-020-70037-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 07/21/2020] [Indexed: 01/01/2023] Open
Abstract
We examined the acute effects of L-theanine, caffeine and their combination on sustained attention, inhibitory control and overall cognition in boys with attention deficit hyperactivity disorder (ADHD). L-Theanine (2.5 mg/kg), caffeine (2.0 mg/kg), their combination and a placebo were administered in a randomized four-way repeated-measures crossover with washout, to five boys (8-15 years) with ADHD. Functional magnetic resonance imaging (fMRI) was performed during a Go/NoGo task and a Stop-signal task ~ 1 h post-dose. NIH Cognition Toolbox was administered ~ 2 h post-dose. Treatment vs. placebo effects were examined in multi-level mixed-effects models. L-Theanine improved total cognition composite in NIH Cognition Toolbox (p = 0.040) vs. placebo. Caffeine worsened and L-theanine had a trend of worsening inhibitory control (i.e. increased Stop-signal reaction time; p = 0.031 and p = 0.053 respectively). L-Theanine-caffeine combination improved total cognition composite (p = 0.041), d-prime in the Go/NoGo task (p = 0.033) and showed a trend of improvement of inhibitory control (p = 0.080). L-Theanine-caffeine combination was associated with decreased task-related reactivity of a brain network associated with mind wandering (i.e. default mode network). L-Theanine-caffeine combination may be a potential therapeutic option for ADHD-associated impairments in sustained attention, inhibitory control and overall cognitive performance.
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Affiliation(s)
- Chanaka N Kahathuduwa
- Department of Laboratory Sciences and Primary Care, School of Health Professions, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX, USA.
- Department of Psychiatry, School of Medicine, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX, USA.
- Department of Human Development and Family Studies, College of Human Sciences, Texas Tech University, Lubbock, TX, USA.
| | - Sarah Wakefield
- Department of Psychiatry, School of Medicine, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX, USA
- Department of Human Development and Family Studies, College of Human Sciences, Texas Tech University, Lubbock, TX, USA
| | - Blake D West
- Department of Human Development and Family Studies, College of Human Sciences, Texas Tech University, Lubbock, TX, USA
| | - Jessica Blume
- Department of Human Development and Family Studies, College of Human Sciences, Texas Tech University, Lubbock, TX, USA
| | - Tharaka L Dassanayake
- Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
- School of Psychology, The University of Newcastle, Callaghan, NSW, Australia
| | - Vajira S Weerasinghe
- Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Ann Mastergeorge
- Department of Human Development and Family Studies, College of Human Sciences, Texas Tech University, Lubbock, TX, USA
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