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Thorsson M, Galazka MA, Johnson M, Åsberg Johnels J, Hadjikhani N. Visuomotor tracking strategies in children: associations with neurodevelopmental symptoms. Exp Brain Res 2024; 242:337-353. [PMID: 38078961 PMCID: PMC11297076 DOI: 10.1007/s00221-023-06752-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/19/2023] [Indexed: 01/25/2024]
Abstract
Children with neurodevelopmental disorders (NDDs) often display motor problems that may impact their daily lives. Studying specific motor characteristics related to spatiotemporal control may inform us about the mechanisms underlying their challenges. Fifty-eight children with varying neurodevelopmental symptoms load (median age: 5.6 years, range: 2.7-12.5 years) performed an interactive tablet-based tracking task. By investigating digit touch errors relative to the target's movement direction, we found that a load of neurodevelopmental symptoms was associated with reduced performance in the tracking of abrupt alternating directions (zigzag) and overshooting the target. In contrast, reduced performance in children without neurodevelopmental symptoms was associated with lagging behind the target. Neurodevelopmental symptom load was also associated with reduced flexibility in correcting for lateral deviations in smooth tracking (spiral). Our findings suggest that neurodevelopmental symptoms are associated with difficulties in motor regulation related to inhibitory control and reduced flexibility, impacting motor control in NDDs.
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Affiliation(s)
- Max Thorsson
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
| | - Martyna A Galazka
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Division of Cognition and Communication, Department of Applied Information Technology, University of Gothenburg, Gothenburg, Sweden
| | - Mats Johnson
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jakob Åsberg Johnels
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Section of Speech and Language Pathology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Nouchine Hadjikhani
- Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Athinoula A. Martinos Center for Biomedical Imaging, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
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2
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Ahire N, Awale RN, Wagh A. Electroencephalogram (EEG) based prediction of attention deficit hyperactivity disorder (ADHD) using machine learning. APPLIED NEUROPSYCHOLOGY. ADULT 2023:1-12. [PMID: 37647332 DOI: 10.1080/23279095.2023.2247702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
"Attention-Deficit Hyperactivity Disorder (ADHD)" is a neuro-developmental disorder in children under 12 years old. Learning deficits, anxiety, depression, sensory processing disorder, and oppositional defiant disorder are the most frequent comorbidities of ADHD. This research focuses on ADHD in children, considering its common occurrence and frequent coexistence with other mental disorders. The study utilizes the resting-state open-eye "Electroencephalogram" (EEG) signals of 61 children with ADHD and 60 healthy children. Morphological and "Power Spectral Density" (PSD) features associated with ADHD are analysed and "Principal Component Analysis" (PCA) is employed to reduce data dimensionality. Classification algorithms including AdaBoost, "K-Nearest Neighbour" (KNN) classifier, Naive Bayes, and random forest are utilized, with the Bernoulli Naive Bayes classifier achieving the highest accuracy of 96%. This study found some relevant characteristics for classification at the frontal (F), central (C), and parietal (P) electrode placement sites. Finally, this reveals distinct EEG patterns in children with ADHD and the study provides a potential supplementary method for ADHD diagnosis.
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Affiliation(s)
- Nitin Ahire
- Department of Electronics and Telecommunication, Xavier Institute of Engineering, Mumbai, India
| | - R N Awale
- Department of Electrical Engineering, VJTI, Mumbai, India
| | - Abhay Wagh
- Department of Technical Education, VJTI, Mumbai, India
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McCracken HS, Murphy BA, Ambalavanar U, Glazebrook CM, Yielder PC. Sensorimotor integration and motor learning during a novel force-matching task in young adults with attention-deficit/hyperactivity disorder. Front Hum Neurosci 2023; 16:1078925. [PMID: 36684834 PMCID: PMC9849696 DOI: 10.3389/fnhum.2022.1078925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 12/12/2022] [Indexed: 01/06/2023] Open
Abstract
Introduction Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder that exhibits unique neurological and behavioral characteristics. Those with ADHD often have noted impairments in motor performance and coordination, including during tasks that require force modulation. The present study provides insight into the role of altered neural processing and SMI in response to a motor learning paradigm requiring force modulation and proprioception, that previous literature has suggested to be altered in those with ADHD, which can also inform our understanding of the neurophysiology underlying sensorimotor integration (SMI) in the general population. Methods Adults with ADHD (n = 15) and neurotypical controls (n = 15) performed a novel force-matching task, where participants used their right-thumb to match a trace template that varied from 2-12% of their Abductor Pollicis Brevis maximum voluntary contraction. This motor task was completed in pre, acquisition, and post blocks. Participants also completed a retention test 24 h later. Median nerve somatosensory-evoked potentials (SEPs) were collected pre and post motor acquisition. SEPs were stimulated at two frequencies, 2.47 Hz and 4.98 Hz, and 1,000 sweeps were recorded using 64-electrode electroencephalography (EEG) at 2,048 Hz. SEP amplitude changes were normalized to each participant's baseline values for that peak. Results Both groups improved at post measures (ADHD: 0.85 ± 0.09; Controls: 0.85 ± 0.10), with improvements maintained at retention (ADHD: 0.82 ± 0.11; Controls: 0.82 ± 0.11). The ADHD group had a decreased N18 post-acquisition (0.87 ± 0.48), while the control N18 increased (1.91 ± 1.43). The N30 increased in both groups, with a small increase in the ADHD group (1.03 ± 0.21) and a more pronounced increase in controls (1.15 ± 0.27). Discussion Unique neural differences between groups were found after the acquisition of a novel force-matching motor paradigm, particularly relating to the N18 peak. The N18 differences suggest that those with ADHD have reduced olivary-cerebellar-M1 inhibition when learning a novel motor task dependent on force-modulation, potentially due to difficulties integrating the afferent feedback necessary to perform the task. The results of this work provide evidence that young adults with ADHD have altered proprioceptive processing when learning a novel motor task when compared to neurotypical controls.
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Affiliation(s)
- Heather S. McCracken
- Faculty of Health Sciences, University of Ontario Institute of Technology, Oshawa, ON, Canada
| | - Bernadette A. Murphy
- Faculty of Health Sciences, University of Ontario Institute of Technology, Oshawa, ON, Canada,*Correspondence: Bernadette A. Murphy,
| | - Ushani Ambalavanar
- Faculty of Health Sciences, University of Ontario Institute of Technology, Oshawa, ON, Canada
| | - Cheryl M. Glazebrook
- Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada,Health, Leisure & Human Performance Research Institute, University of Manitoba, Winnipeg, MB, Canada
| | - Paul C. Yielder
- Faculty of Health Sciences, University of Ontario Institute of Technology, Oshawa, ON, Canada,Faculty of Health, School of Medicine, Deakin University, Waurn Ponds, VIC, Australia
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Brinkerhoff SA, Mathew GM, Murrah WM, Chang AM, Roper JA, Neely KA. Sleep restriction impairs visually and memory-guided force control. PLoS One 2022; 17:e0274121. [PMID: 36054227 PMCID: PMC9439228 DOI: 10.1371/journal.pone.0274121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 08/23/2022] [Indexed: 11/18/2022] Open
Abstract
Sleep loss is a common phenomenon with consequences to physical and mental health. While the effects of sleep restriction on working memory are well documented, it is unknown how sleep restriction affects continuous force control. The purpose of this study was to determine the effects of sleep restriction on visually and memory-guided force production magnitude and variability. We hypothesized that both visually and memory-guided force production would be impaired after sleep restriction. Fourteen men participated in an eleven-day inpatient sleep study and completed a grip force task after two nights of ten hours’ time in bed (baseline); four nights of five hours’ time in bed (sleep restriction); and one night of ten hours’ time in bed (recovery). The force task entailed four 20-second trials of isometric force production with the thumb and index finger targeting 25% of the participant’s maximum voluntary contraction. During visually guided trials, participants had continuous visual feedback of their force production. During memory-guided trials, visual feedback was removed for the last 12 seconds of each trial. During both conditions, participants were told to maintain the target force production. After sleep restriction, participants decreased the magnitude of visually guided, but not memory-guided, force production, suggesting that visual attention tasks are more affected by sleep loss than memory-guided tasks. Participants who reported feeling more alert after sleep restriction and recovery sleep produced higher force during memory-guided, but not visually guided, force production, suggesting that the perception of decreased alertness may lead to more attention to the task during memory-guided visual tasks.
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Affiliation(s)
- Sarah A. Brinkerhoff
- School of Kinesiology, Auburn University, Auburn, Alabama, United States of America
- * E-mail:
| | - Gina M. Mathew
- Program in Public Health, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - William M. Murrah
- Department of Educational Foundations, Leadership, and Technology, Auburn University, Auburn, Alabama, United States of America
| | - Anne-Marie Chang
- Department of Biobehavioral Health, College of Health and Human Development, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Jaimie A. Roper
- School of Kinesiology, Auburn University, Auburn, Alabama, United States of America
| | - Kristina A. Neely
- School of Kinesiology, Auburn University, Auburn, Alabama, United States of America
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Galloway-Long H, Huang-Pollock C, Neely K. Ahead of the (ROC) Curve: A Statistical Approach to Utilizing Ex-Gaussian Parameters of Reaction Time in Diagnosing ADHD Across Three Developmental Periods. J Int Neuropsychol Soc 2022; 28:821-834. [PMID: 34488917 PMCID: PMC9521363 DOI: 10.1017/s1355617721000990] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Performance on executive function (EF) tasks is only modestly predictive of a diagnosis of Attention Deficit Hyperactivity Disorder (ADHD), despite the common assumption that EF deficits are ubiquitous to the disorder. The current study sought to determine whether ex-Gaussian parameters of simple reaction time are better able to discriminate between children and adults with and without ADHD, compared with traditional measures of inhibitory control. METHODS Receiver Operating Characteristic (ROC) analyses and the area under the curve (AUC) were used to examine the ability of performance on two commonly used tasks of inhibitory control (i.e. stop signal reaction time (SSRT) and go-no-go tasks) to predict ADHD status in preschool (N = 108), middle childhood (N = 309), and young adulthood (N = 133). RESULTS Across all samples, SSRT, go-no-go percentage of failed inhibits, and standard deviation of reaction (SDRT) time to "go" trials, all successfully discriminated between individuals with and without ADHD. Ex-Gaussian decomposition of the RT distribution indicated that both larger tau and larger sigma drove findings for SDRT. Contrary to predictions, traditional measures of inhibitory control were equal if not better predictors of ADHD status than ex-Gaussian parameters. CONCLUSIONS Findings support ongoing work to quantify the separate contributions of cognitive subprocesses that drive task performance, which in turn is critical to developing and improving process-based approaches in clinical assessment.
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Affiliation(s)
- Hilary Galloway-Long
- Department of Psychology, The Pennsylvania State University, University Park, PA, USA
- VA Puget Sound Healthcare System, American Lake Division, WA, USA
| | - Cynthia Huang-Pollock
- Department of Psychology, The Pennsylvania State University, University Park, PA, USA
| | - Kristina Neely
- School of Kinesiology, Auburn University, Auburn, AL, USA
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6
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Leisman G, Melillo R. Front and center: Maturational dysregulation of frontal lobe functional neuroanatomic connections in attention deficit hyperactivity disorder. Front Neuroanat 2022; 16:936025. [PMID: 36081853 PMCID: PMC9446472 DOI: 10.3389/fnana.2022.936025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 07/29/2022] [Indexed: 12/21/2022] Open
Abstract
Frontal lobe function may not universally explain all forms of attention deficit hyperactivity disorder (ADHD) but the frontal lobe hypothesis described supports an internally consistent model for integrating the numerous behaviors associated with ADHD. The paper examines the developmental trajectories of frontal and prefrontal lobe development, framing ADHD as maturational dysregulation concluding that the cognitive, motor, and behavioral abilities of the presumptive majority of ADHD children may not primarily be disordered or dysfunctional but reflect maturational dysregulation that is inconsistent with the psychomotor and cognitive expectations for the child’s chronological and mental age. ADHD children demonstrate decreased activation of the right and middle prefrontal cortex. Prefrontal and frontal lobe regions have an exuberant network of shared pathways with the diencephalic region, also having a regulatory function in arousal as well as with the ascending reticular formation which has a capacity for response suppression to task-irrelevant stimuli. Prefrontal lesions oftentimes are associated with the regulatory breakdown of goal-directed activity and impulsivity. In conclusion, a presumptive majority of childhood ADHD may result from maturational dysregulation of the frontal lobes with effects on the direct, indirect and/or, hyperdirect pathways.
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Affiliation(s)
- Gerry Leisman
- Movement and Cognition Laboratory, Department of Physical Therapy, University of Haifa, Haifa, Israel
- Department of Neurology, University of Medical Sciences of Havana, Havana, Cuba
- *Correspondence: Gerry Leisman,
| | - Robert Melillo
- Movement and Cognition Laboratory, Department of Physical Therapy, University of Haifa, Haifa, Israel
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7
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Nastou E, Ocklenburg S, Hoogman M, Papadatou-Pastou M. Handedness in ADHD: Meta-Analyses. Neuropsychol Rev 2022; 32:877-892. [PMID: 35064524 DOI: 10.1007/s11065-021-09530-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/11/2021] [Indexed: 01/02/2023]
Abstract
Meta-analyses have shown that several neurodevelopmental and psychiatric disorders, such as autism spectrum disorder and schizophrenia, are associated with a higher prevalence of atypical (left-, non-right-, or mixed-) handedness. One neurodevelopmental disorder for which this association is unclear is attention deficit hyperactivity disorder (ADHD). Here, some empirical studies have found evidence for a higher prevalence of atypical handedness in individuals with ADHD compared to neurotypical individuals. However, other studies failed to establish such an association. Therefore, meta-analytic integration is critical to estimate whether or not there is an association between handedness and ADHD. We report the results of three meta-analyses (left-, mixed-, and non-right-handedness) comparing handedness in individuals with ADHD to controls (typically developing individuals). The results show evidence of a trend towards elevated levels of atypical handedness when it comes to differences in left- and mixed-handedness (p = 0.09 and p = 0.07, respectively), but do show clear evidence of elevated levels of non-right-handedness between individuals with ADHD and controls (p = 0.02). These findings are discussed in the context of the hypothesis that ADHD is a disorder in which mostly right-hemispheric brain networks are affected. Since right-handedness represents a dominance of the left motor cortex for fine motor behavior, such as writing, as well as a left-hemispheric dominance for language functions, and about 90% of individuals are right-handers, this hypothesis might explain why there is not stronger evidence for an association of left-handedness with ADHD. We suggest that the mechanisms involved in the pathogenesis of ADHD might show an overlap with the mechanisms involved in handedness strength, but not handedness direction.
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Affiliation(s)
- Evgenia Nastou
- Department of Primary Education, National and Kapodistrian University of Athens, 13A Navarinou Street, 10680, Athens, Greece
| | | | | | - Marietta Papadatou-Pastou
- Department of Primary Education, National and Kapodistrian University of Athens, 13A Navarinou Street, 10680, Athens, Greece. .,Biomedical Research Foundation, Academy of Athens, Athens, Greece.
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8
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Fietsam AC, Tucker JR, Kamath MS, Huang-Pollock C, Wang Z, Neely KA. Manual dexterity and strength and in young adults with and without Attention-Deficit/Hyperactivity Disorder (ADHD). Neurosci Lett 2022; 766:136349. [PMID: 34785312 PMCID: PMC9578534 DOI: 10.1016/j.neulet.2021.136349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 01/03/2023]
Abstract
Manual motor deficits are common in children with attention deficit/hyperactivity disorder (ADHD); however, it is unclear whether these impairments persist into adulthood. The aim of this study was to examine manual dexterity and strength in young adults with ADHD aged 18-25 years. Sixty-one individuals with confirmed ADHD and 56 adults without ADHD completed Purdue Pegboard tasks for manual dexterity and maximal hand- and pinch-grip tests for strength. In the Purdue Pegboard task, participants placed pins using the right, left, and both-hands, respectively. In addition, participants built assemblies using pins, washers, and collars with alternating hand movements. The results demonstrated that women without ADHD out-performed the other three groups in the right-hand, bimanual, and assembly PPB tasks. Both maximal hand strength tests demonstrated that men were stronger than women, but no differences were observed between adults with and without ADHD. The current findings suggest that adults with ADHD may have deficits in manual dexterity and tasks requiring bimanual coordination.
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Affiliation(s)
| | | | | | | | - Zheng Wang
- Department of Applied Physiology and Kinesiology, University of Florida, FL, United States
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9
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Braun CMJ, Sahakian T, Duval J, Delisle J. Opposed attentional hemi-bias on a visuoconstructive task in children with severe hyperactivity versus severe inattention. Laterality 2021; 27:257-272. [PMID: 34396912 DOI: 10.1080/1357650x.2021.1967371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Twenty six empirical investigations have now established that children and adults with DSM-defined Attention deficit/Hyperactivity disorder (ADHD) of the Hyperactive type (ADHD-H) or, more commonly, Combined Hyperactive/Inattentive types (ADHD-C) manifest a small but significant visual attentional bias to the right side (left subclinical neglect), consistently suggesting the existence of a subtle right hemisphere dysfunction or hemispheric imbalance in hyperactive people. Only one research team has investigated and compared the DSM-defined Inattentive subtype (ADHD-I) to the Hyperactive subtype (ADHD-H), confirming that line bisection is biased to the right in ADHD-H and discovering that it is biased to the left in ADHD-I. We aimed to test whether a similar crossed double dissociation would extend to Rey's Complex Figure Copy Task (RCF-CT), a simple visuospatial-constructive task. Clinical files of 205 juvenile clients from 6 to 16 years of age from a neuropsychological private clinic specialized in ADHD were analysed. Extreme scores on the Connors-3 Hyperactivity vs Inattention Parent Rating scales associated, respectively, with significant rightward and significant leftward emplacement of the drawing on the page on the RCF-CT. These results replicate previous findings and extend the "energetics" model of hemispheric specialization.
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Affiliation(s)
| | - Taline Sahakian
- Department of Psychology, UQAM, Montréal, Canada.,Department of Child Psychiatry, Charles LeMoyne Hospital, Greenfield Park, Canada
| | - Julie Duval
- Department of Psychology, UQAM, Montréal, Canada.,Centre d'Intervention Multidisciplinaire pour l'Élève (CIME), Sainte Julie, Canada
| | - Josée Delisle
- Centre d'Intervention Multidisciplinaire pour l'Élève (CIME), Sainte Julie, Canada
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10
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Onandia-Hinchado I, Pardo-Palenzuela N, Diaz-Orueta U. Cognitive characterization of adult attention deficit hyperactivity disorder by domains: a systematic review. J Neural Transm (Vienna) 2021; 128:893-937. [PMID: 33620582 DOI: 10.1007/s00702-021-02302-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/06/2021] [Indexed: 02/06/2023]
Abstract
Attention deficit hyperactivity disorder (ADHD) is reportedly the most frequent neurodevelopmental disorder diagnosed during childhood, and it is recognized as a common condition in adulthood. We review the evidence to help identify cognitive domains associated to deficits in adult ADHD. A systematic review with narrative synthesis was performed, assessing studies on adult ADHD, neuropsychology and research on involved cognitive domains in adults 18+ years old with an established diagnosis of ADHD, in seven electronic databases (PubMed, PsychInfo, WebOfScience, Embase, Scopus, OvidSPMedline, and Teseo), and Worldcat and OpenGrey grey literature databases. 93 studies were included for this review, encompassing findings from a total 5574 adults diagnosed only with ADHD, medication-naïve or non-medicated at the moment of the assessment and 4880 healthy controls. Adults diagnosed with ADHD may show, when compared to healthy controls, a cognitive profile characterized by deficits across all attention modalities, processing speed, executive function (mainly working memory and inhibition with emphasis on reward delay and interference control), verbal memory, reading skills, social cognition and arithmetic abilities. A cognitive characterization of adult ADHD by domains is established beyond the sole consideration of attention and executive function problems. Along with these, verbal memory, language (mainly reading), social cognition and arithmetic abilities may also contribute to a more comprehensive characterization of the cognitive profile in adult ADHD.
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Affiliation(s)
| | | | - Unai Diaz-Orueta
- Department of Psychology, Maynooth University, Room 3.11, John Hume Building, North Campus, Maynooth, Co. Kildare, Ireland.
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11
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Etter NM, Cadely FA, Peters MG, Dahm CR, Neely KA. Speech motor control and orofacial point pressure sensation in adults with ADHD. Neurosci Lett 2021; 744:135592. [PMID: 33359925 PMCID: PMC10726419 DOI: 10.1016/j.neulet.2020.135592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 12/08/2020] [Accepted: 12/18/2020] [Indexed: 11/20/2022]
Abstract
Attention-Deficit Hyperactivity Disorder (ADHD) is a predominant neurobehavioral disorder of childhood with motor and sensory symptoms often persisting into adulthood. Motor control theories highlight the importance of the bidirectional relationship between sensation and movement for maintaining skilled behaviors like speech. The impact of ADHD on speech in adults has not been well established. The purpose of this study is to assess group differences in quantitative speech and oral somatosensory measures in adults with and without ADHD and to describe the relationship between ADHD symptomology and speech production. A total of 50 adults (18-26 years) were recruited and divided in two groups based on diagnosis: those with (n = 28) and those without (n = 22) ADHD. All participants provided a speech sample to measure articulatory accuracy and speech rate and completed quantitative point-pressure testing using tactile detection and discrimination on bilateral sites on the lower lip and lateral edge of the tongue tip. Independent t-tests corrected for multiple comparisons identified significant group differences using FDR corrected q values in speech production for correct syllables per second and overall speech rate (q<.05). Additionally, there were significant group differences (q<.05) for detection and discrimination threshold estimates at one testing location. Bivariate correlations identified a relationship between several speech measures and self-reported ADHD symptoms such that as symptom severity increased, speech accuracy for correct syllables per second decreased. Young adults with ADHD have subtle differences in speech production compared to non-ADHD control participants. Speech scientists might consider screening for ADHD when collecting normative data samples.
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Affiliation(s)
- Nicole M Etter
- Department of Communication Sciences and Disorders, Pennsylvania State University, University Park, PA, USA.
| | - Farlah A Cadely
- Veterans Affairs Maryland Healthcare System (BT VAMHCS), Baltimore, MD, USA
| | - Madison G Peters
- Department of Communication Sciences and Disorders, Pennsylvania State University, University Park, PA, USA
| | - Crystal R Dahm
- School of Theatre, Pennsylvania State University, University Park, PA, USA
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12
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Kim K, Kim HJ. Normal executive attention but abnormal orienting attention in individuals with sluggish cognitive tempo. Int J Clin Health Psychol 2020; 21:100199. [PMID: 33363582 PMCID: PMC7753035 DOI: 10.1016/j.ijchp.2020.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/20/2020] [Indexed: 11/23/2022] Open
Abstract
Background/objective: Sluggish Cognitive Tempo (SCT) is an attentional disorder characterized by the symptoms of slowness in behavior or thinking, a lack of en.ergy, difficulty initiating and sustaining effort, daydreaming, and drowsiness. The aim of the present study was to investigate the distinctive attentional characteristics of SCT as compared to Attention-Deficit/Hyperactivity Disorder (ADHD). Method: A total of 110 adults were recruited and divided into four groups: SCT+ADHD, SCT, ADHD, and healthy controls. The Revised version of Attention Networks Test was used to investigate each group’s attentional profile. Results: The results revealed that the two SCT groups (SCT+ADHD and SCT) showed a significantly weaker orienting network due to the problems of engaging and disengaging attention than the other two groups. Additionally, the two ADHD groups (SCT+ADHD and ADHD) showed a significantly weaker executive control network than the other two groups. Conclusions: The findings demonstrate an attentional distinction between the SCT and the ADHD groups with a greater dysfunction in the orienting network in the SCT group as compared to the ADHD group. Furthermore, a greater executive control dysfunction was observed in the ADHD group as compared to the SCT group.
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Affiliation(s)
- Kiho Kim
- Department of Psychology of Counseling, Sejong Cyber University, Seoul, South Korea
| | - Hyo-Jeong Kim
- Department of Psychology, Seoul National University, Seoul, South Korea
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13
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Assari S, Akhlaghipour G. Not Race or Age but Their Interaction Predicts Pre-Adolescents' Inhibitory Control. ACTA ACUST UNITED AC 2020; 3:50-71. [PMID: 33283174 DOI: 10.22158/ct.v3n2p50] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background African American pre-adolescents are at a higher risk of risky behaviors such as aggression, drug use, alcohol use, and subsequent poor outcomes compared to Caucasian pre-adolescents. All these high-risk behaviors are connected to low levels of inhibitory control (IC). Aim We used the Adolescent Brain Cognitive Development (ABCD) data to compare Caucasian and African American pre-adolescents for the effect of age on pre-adolescents IC, a driver of high-risk behaviors. Methods This cross-sectional analysis included 4,626 pre-adolescents between ages 9 and 10 from the ABCD study. Regression was used to analyze the data. The predictor variable was age measured in months. The main outcome was IC measured by a stop-signal task (SST). Race was the effect modifier. Results Overall, age was associated with IC. Race also showed a statistically significant interaction with age on pre-adolescents' IC, indicating weaker effects of age on IC for African American than Caucasian pre-adolescents. Conclusion Age-related changes in IC are more pronounced for Caucasian than African American pre-adolescents. To eliminate the racial gap in brain development between African American and Caucasian pre-adolescents, we should address structural and societal barriers that alter age-related development for racial minority pre-adolescents. Social and public policies, rather than health policies, are needed to address structural and societal barriers that hinder African American adolescents' brain development. Interventions should add resources to the urban areas that many African American families live in so their children can have better age-related brain development. Such changes would be essential given IC in pre-adolescents is a predictor of a wide range of behaviors.
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Affiliation(s)
- Shervin Assari
- Department of Urban Public Health, Charles R Drew University of Medicine and Science, Los Angeles, CA.,Department of Family Medicine, Charles R Drew University of Medicine and Science, Los Angeles, CA
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Kamath MS, Dahm CR, Tucker JR, Huang-Pollock CL, Etter NM, Neely KA. Sensory profiles in adults with and without ADHD. RESEARCH IN DEVELOPMENTAL DISABILITIES 2020; 104:103696. [PMID: 32526674 PMCID: PMC7786815 DOI: 10.1016/j.ridd.2020.103696] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/14/2020] [Accepted: 05/13/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Our previous work demonstrates that adults with ADHD produce more force at the fingertips compared to adults without ADHD. One possibility is that somatosensation is impaired in ADHD. However, ADHD is often comorbid with anxiety, and anxiety influences sensory responsivity. AIMS The goal of the current work was to evaluate differences in the self-report of sensory experiences in adults with and without ADHD, while controlling for internalizing behaviors. METHODS AND PROCEDURES Forty-five adults (23 with ADHD) completed a semi-structured interview for the diagnosis of ADHD, the Adolescent/Adult Sensory Profile (AASP), and the Achenbach Adult Self Report (ASR). OUTCOMES AND RESULTS Adults with ADHD reported more hyper- and hypo- sensitivity compared to adults without ADHD, even when controlling for internalizing behaviors. Specifically, between group differences were found for low registration, sensation seeking, and sensory sensitivity scores, but not for sensation avoiding, and for movement, visual, touch, activity, audition, or taste/smell. CONCLUSIONS AND IMPLICATIONS These findings demonstrate that sensory hyper- and hypo- sensitivity may be features of ADHD in adults. Further, they demonstrate that internalizing behaviors influence the perception of sensory experiences and thus should be accounted for in studies of sensory processing, integration, and modulation in adults with ADHD.
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Affiliation(s)
- M S Kamath
- School of Kinesiology, Auburn University, Auburn, AL, USA
| | - C R Dahm
- School of Theatre, The Pennsylvania State University, USA
| | - J R Tucker
- Department of Biomedical Engineering, The Pennsylvania State University, USA
| | | | - N M Etter
- Department of Communication Sciences and Disorders, The Pennsylvania State University, USA
| | - K A Neely
- Department of Communication Sciences and Disorders, The Pennsylvania State University, USA.
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15
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Breitling-Ziegler C, Tegelbeckers J, Flechtner HH, Krauel K. Economical Assessment of Working Memory and Response Inhibition in ADHD Using a Combined n-back/Nogo Paradigm: An ERP Study. Front Hum Neurosci 2020; 14:322. [PMID: 32848679 PMCID: PMC7426064 DOI: 10.3389/fnhum.2020.00322] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 07/20/2020] [Indexed: 11/25/2022] Open
Abstract
The development of cognitive interventions in attention-deficit/hyperactivity disorder (ADHD) often requires the assessment of multiple cognitive functions. However, experimental settings consisting of various tasks are particularly strenuous for patients and can thus result in poor data quality. For the economical assessment of working memory and response inhibition, this study aims to validate a combined n-back/nogo paradigm by comparing it to single task versions and to demonstrate its applicability for ADHD research. Twenty-five healthy individuals and 34 ADHD patients between 9 and 16 years participated in this event-related potential (ERP) study. Healthy controls underwent single task versions of a 2-back working memory task and a go/nogo response inhibition task as well as the introduced combined 2-back/nogo task. This combined task demonstrated a comparable ERP structure for working memory and response inhibition aspects as single task versions. Behaviorally, higher working memory performance during the combined paradigm indicated lower task difficulty, while high correlations between combined and single task versions still indicated valid working memory measures. For response inhibition performance, different task versions resulted in similar outcomes. The application of the combined n-back/nogo paradigm in ADHD patients revealed the expected working memory and response inhibition deficits, increased omission errors, reaction times, and standard deviation of reaction time, as well as diminished n-back P3 and nogo P3 amplitudes. We conclude that the combined n-back/nogo task is an effective paradigm for the economical assessment of working memory and response inhibition deficits in ADHD on a behavioral and neurophysiological level.
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Affiliation(s)
- Carolin Breitling-Ziegler
- Department of Child and Adolescent Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Jana Tegelbeckers
- Department of Child and Adolescent Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg, Magdeburg, Germany.,Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Hans-Henning Flechtner
- Department of Child and Adolescent Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Kerstin Krauel
- Department of Child and Adolescent Psychiatry and Psychotherapy, Otto von Guericke University Magdeburg, Magdeburg, Germany.,Center for Behavioral Brain Sciences, Otto von Guericke University Magdeburg, Magdeburg, Germany
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Benedetti V, Gavazzi G, Giovannelli F, Bravi R, Giganti F, Minciacchi D, Mascalchi M, Cincotta M, Viggiano MP. Mouse Tracking to Explore Motor Inhibition Processes in Go/No-Go and Stop Signal Tasks. Brain Sci 2020; 10:brainsci10070464. [PMID: 32698348 PMCID: PMC7408439 DOI: 10.3390/brainsci10070464] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023] Open
Abstract
Response inhibition relies on both proactive and reactive mechanisms that exert a synergic control on goal-directed actions. It is typically evaluated by the go/no-go (GNG) and the stop signal task (SST) with response recording based on the key-press method. However, the analysis of discrete variables (i.e., present or absent responses) registered by key-press could be insufficient to capture dynamic aspects of inhibitory control. Trying to overcome this limitation, in the present study we used a mouse tracking procedure to characterize movement profiles related to proactive and reactive inhibition. A total of fifty-three participants performed a cued GNG and an SST. The cued GNG mainly involves proactive control whereas the reactive component is mainly engaged in the SST. We evaluated the velocity profile from mouse trajectories both for responses obtained in the Go conditions and for inhibitory failures. Movements were classified as one-shot when no corrections were observed. Multi-peaked velocity profiles were classified as non-one-shot. A higher proportion of one-shot movements was found in the SST compared to the cued GNG when subjects failed to inhibit responses. This result suggests that proactive control may be responsible for unsmooth profiles in inhibition failures, supporting a differentiation between these tasks.
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Affiliation(s)
- Viola Benedetti
- Section of Psychology—Department of Neuroscience, Psychology, Drug Research and Child’s Health (NEUROFARBA), University of Florence, 50135 Florence, Italy; (V.B.); (F.G.); (F.G.)
| | | | - Fabio Giovannelli
- Section of Psychology—Department of Neuroscience, Psychology, Drug Research and Child’s Health (NEUROFARBA), University of Florence, 50135 Florence, Italy; (V.B.); (F.G.); (F.G.)
| | - Riccardo Bravi
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (R.B.); (D.M.)
| | - Fiorenza Giganti
- Section of Psychology—Department of Neuroscience, Psychology, Drug Research and Child’s Health (NEUROFARBA), University of Florence, 50135 Florence, Italy; (V.B.); (F.G.); (F.G.)
| | - Diego Minciacchi
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy; (R.B.); (D.M.)
| | - Mario Mascalchi
- Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50134 Florence, Italy;
| | - Massimo Cincotta
- Unit of Neurology of Florence, Central Tuscany Local Health Authority, 50143 Florence, Italy;
| | - Maria Pia Viggiano
- Section of Psychology—Department of Neuroscience, Psychology, Drug Research and Child’s Health (NEUROFARBA), University of Florence, 50135 Florence, Italy; (V.B.); (F.G.); (F.G.)
- Correspondence:
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Shapiro ZR, Huang-Pollock C, Graham JW, Neely K. Making the Most of It: Application of Planned Missingness Design to Increase the Efficiency of Diagnostic Assessment. JOURNAL OF PSYCHOPATHOLOGY AND BEHAVIORAL ASSESSMENT 2020; 42:314-327. [PMID: 32523240 DOI: 10.1007/s10862-019-09780-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Multimethod assessment is recommended as "best practice" in clinical assessment and is often implemented through the combined use of symptom rating scales and structured interviews. While this approach increases confidence in the validity of assessment, it also increases burden, expense, and leads to the accumulation of redundant information. To address this problem, we evaluate the use a planned missingness design within the framework of adult Attention Deficit/Hyperactivity Disorder (ADHD) assessment. In a sample of 169 young adults, we fit a two-method measurement (TMM) model using ADHD symptoms obtained from rating scales and a structured diagnostic interview. Based on an estimated 8:1 differential between the cost of conducting an in-person diagnostic interview vs. completing questionnaires online, we conducted a series of Monte Carlo simulations to determine the utility of combining TMM with a planned missingness design. We find that even when costs are kept constant, statistical power of the TMM/planned missingness design was equal to the power that would have been obtained had nearly twice the number of participants with complete data been recruited. Conversely, costs could be decreased by 20-25%, while maintaining statistical power equivalent to a design with complete data. Our results suggest the TMM design is a promising technique for reducing the cost and burden of diagnostic assessment within research settings.
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Affiliation(s)
- Zvi R Shapiro
- The Pennsylvania State University, University Park, PA 16802, USA
| | | | - John W Graham
- The Pennsylvania State University, University Park, PA 16802, USA
| | - Kristina Neely
- School of Kinesiology, Auburn University, Auburn, AL, USA
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Parental Education on Youth Inhibitory Control in the Adolescent Brain Cognitive Development (ABCD) Study: Blacks' Diminished Returns. Brain Sci 2020; 10:brainsci10050312. [PMID: 32455841 PMCID: PMC7287691 DOI: 10.3390/brainsci10050312] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 05/12/2020] [Accepted: 05/19/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Non-Hispanic Black (NHB) youth are at a higher risk of high-risk behaviors compared to non-Hispanic White (NHW) youth. Some of this racial gap is shown to be due to weaker effects of parental educational attainment on reducing the prevalence of behavioral risk factors such as impulsivity, substance use, aggression, obesity, and poor school performance for NHBs, a pattern called Minorities' Diminished Returns. These diminishing returns may be due to lower than expected effects of parental education on inhibitory control. AIM We compared NHW and NHB youth for the effect of parental educational attainment on youth inhibitory control, a psychological and cognitive construct that closely predicts high-risk behaviors such as the use of drugs, alcohol, and tobacco. METHODS This was a cross-sectional analysis that included 4188 youth from the Adolescent Brain Cognitive Development (ABCD) study. The independent variable was parental educational attainment. The main outcome was youth inhibitory control measured by the stop-signal task (SST), which was validated by parent reports on the Child Behavior Checklist (CBCL). RESULTS In race/ethnicity-stratified models, high parental educational attainment was associated with a higher level of inhibitory control for NHB than NHW youth. In the pooled sample, race/ethnicity showed a statistically significant interaction with parental educational attainment on youth inhibitory control suggesting that high parental educational attainment has a smaller boosting effect on inhibitory control for NHB than NHW youth. CONCLUSION Parental educational attainment boosts inhibitory control for NHW but not NHB youth. To minimize the racial gap in youth brain development, we need to address societal barriers that diminish the returns of family economic and human resources, particularly parental educational attainment, for racial and ethnic minority youth. Social and public policies should address structural and societal barriers such as social stratification, segregation, racism, and discrimination that hinder NHB parents' abilities to effectively mobilize their human resources and secure tangible outcomes for their developing youth.
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Boroujeni YK, Rastegari AA, Khodadadi H. Diagnosis of attention deficit hyperactivity disorder using non-linear analysis of the EEG signal. IET Syst Biol 2019; 13:260-266. [PMID: 31538960 PMCID: PMC8687398 DOI: 10.1049/iet-syb.2018.5130] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 04/21/2019] [Accepted: 06/28/2019] [Indexed: 09/01/2023] Open
Abstract
Attention deficit hyperactivity disorder (ADHD) is a common behavioural disorder that may be found in 5%-8% of the children. Early diagnosis of ADHD is crucial for treating the disease and reducing its harmful effects on education, employment, relationships, and life quality. On the other hand, non-linear analysis methods are widely applied in processing the electroencephalogram (EEG) signals. It has been proved that the brain neuronal activity and its related EEG signals have chaotic behaviour. Hence, chaotic indices can be employed to classify the EEG signals. In this study, a new approach is proposed based on the combination of some non-linear features to distinguish ADHD from normal children. Lyapunov exponent, fractal dimension, correlation dimension and sample, fuzzy and approximate entropies are the non-linear extracted features. For computing, the chaotic time series of obtained EEG in the brain frontal lobe (FP1, FP2, F3, F4, and Fz) need to be analysed. Experiments on a set of EEG signal obtained from 50 ADHD and 26 normal cases yielded a sensitivity, specificity, and accuracy of 98, 92.31, and 96.05%, respectively. The obtained accuracy provides a significant improvement in comparison to the other similar studies in identifying and classifying children with ADHD.
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Affiliation(s)
- Yasaman Kiani Boroujeni
- Department of Molecular and Cell Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Ali Asghar Rastegari
- Department of Molecular and Cell Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Hamed Khodadadi
- Department of Electrical Engineering, Khomeinishahr Branch, Islamic Azad University, Isfahan, Iran.
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Garic D, Broce I, Graziano P, Mattfeld A, Dick AS. Laterality of the frontal aslant tract (FAT) explains externalizing behaviors through its association with executive function. Dev Sci 2019; 22:e12744. [PMID: 30159951 PMCID: PMC9828516 DOI: 10.1111/desc.12744] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 08/25/2018] [Indexed: 01/12/2023]
Abstract
We investigated the development of a recently identified white matter pathway, the frontal aslant tract (FAT) and its association with executive function and externalizing behaviors in a sample of 129 neurotypical male and female human children ranging in age from 7 months to 19 years. We found that the FAT could be tracked in 92% of those children, and that the pathway showed age-related differences into adulthood. The change in white matter microstructure was very rapid until about 6 years, and then plateaued, only to show age-related increases again after the age of 11 years. In a subset of those children (5-18 years; n = 70), left laterality of the microstructural properties of the FAT was associated with greater attention problems as measured by the Child Behavior Checklist (CBCL). However, this relationship was fully mediated by higher executive dysfunction as measured by the Behavior Rating Inventory of Executive Function (BRIEF). This relationship was specific to the FAT-we found no relationship between laterality of a control pathway, or of the white matter of the brain in general, and attention and executive function. These findings suggest that the degree to which the developing brain favors a right lateralized structural dominance of the FAT is directly associated with executive function and attention. This novel finding provides a new potential structural biomarker to assess attention deficit hyperactivity disorder (ADHD) and associated executive dysfunction during development.
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Affiliation(s)
- Dea Garic
- Department of Psychology, Florida International University, Miami, FL, 33199
| | - Iris Broce
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, 94143
| | - Paulo Graziano
- Department of Psychology, Florida International University, Miami, FL, 33199
| | - Aaron Mattfeld
- Department of Psychology, Florida International University, Miami, FL, 33199
| | - Anthony Steven Dick
- Department of Psychology, Florida International University, Miami, FL, 33199
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Brief Report: Flanker Visual Filtering Ability in Older Adolescents with Autism Spectrum Disorder. J Autism Dev Disord 2018; 49:422-428. [PMID: 30259287 DOI: 10.1007/s10803-018-3755-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Recent research has documented impaired ability to resist interference from visual distractors in individuals with autism spectrum disorder (ASD) and suggests that this phenomenon may be more pronounced in young versus older children (Christ et al., Neuropsychology 25(6):690-701, 2011). The present study extends previous findings by examining visual filtering inhibitory ability within an older adolescent population. A flanker visual filtering task was administered to 36 adolescents with ASD and 44 adolescents without ASD (age: 11-20 years). Analysis revealed no evidence of group differences in visual filtering performance. Taken together with previous research, these results suggest that during early adolescence the previously observed impairment may resolve or compensatory strategies develop, allowing individuals with ASD to perform as well as their neurotypical peers.
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