Sex Effects on Mirror Overflow during Finger Tapping in Children with ADHD

2021 ◽  
pp. 1-11
Author(s):  
C. Chen ◽  
K.S. Rosch ◽  
K.E. Seymour ◽  
D. Crocetti ◽  
E. M. Mahone ◽  
...  
Keyword(s):  
Structural Connectivity ◽  
Typically Developing ◽  
Motor Variability ◽  
Children With Adhd ◽  
Sex Effects ◽  
Hyperactivity Disorder ◽  
Age Range ◽  
Girls With Adhd ◽  
Sequencing Task ◽  
Age And Sex

Abstract Objectives: The presence of excessive mirror overflow in children with Attention Deficit/Hyperactivity Disorder (ADHD) is discussed in numerous published reports. These reports, however, include a limited age range in their samples. The objective of this study is to examine the effects of diagnosis and sex on mirror overflow and standard deviation (SD) of tap time in children with and without ADHD across a larger age range (5–12 years) of children. Methods: One-hundred and forty-eight children with ADHD and 112 age- and sex-matched typically developing (TD) children completed a finger sequencing task. Mirror overflow, SD of tap time, and mean tap time were measured using finger twitch transducers. Results: Results reveal a significant diagnostic effect on mirror overflow such that boys and girls with ADHD demonstrate increased overflow compared to same-sex TD children. Boys with ADHD demonstrated more variable tap times compared to TD boys; no diagnostic effect was observed in the girls. Conclusions: Boys with ADHD exhibit anomalous motor variability; girls with ADHD show similar levels of variability as TD girls. Boys and girls with ADHD exhibit similar levels of excessive mirror overflow. This lack of sex differences on mirror overflow is distinct from reports finding sex effects on overflow and could result from an examination of a broader age range than is included in prior reports. Adolescent data would provide a greater understanding of the trajectory of anomalous mirror overflow across development. Examination of functional and structural connectivity would expand the current understanding of the neurobiological foundation of motor overflow.

scholarly journals Event-Based Prospective Memory Deficit in Children with ADHD: Underlying Cognitive Factors and Association with Symptoms

2021 ◽  
Vol 18 (11) ◽  
pp. 5849
Author(s):  
Floriana Costanzo ◽  
Elisa Fucà ◽  
Deny Menghini ◽  
Antonella Rita Circelli ◽  
Giovanni Augusto Carlesimo ◽  
...  
Keyword(s):  
Prospective Memory ◽  
Positive Influence ◽  
Attentional Focus ◽  
Adhd Group ◽  
Typically Developing ◽  
Children With Adhd ◽  
The Road ◽  
Hyperactivity Disorder ◽  
Event Based

Event-based prospective memory (PM) was investigated in children with Attention deficit/hyperactivity disorder (ADHD), using a novel experimental procedure to evaluate the role of working memory (WM) load, attentional focus, and reward sensitivity. The study included 24 children with ADHD and 23 typically-developing controls. The experimental paradigm comprised one baseline condition (BC), only including an ongoing task, and four PM conditions, varying for targets: 1 Target (1T), 4 Targets (4T), Unfocal (UN), and Reward (RE). Children with ADHD were slower than controls on all PM tasks and less accurate on both ongoing and PM tasks on the 4T and UN conditions. Within the ADHD group, the accuracy in the RE condition did not differ from BC. A significant relationship between ADHD-related symptoms and reduced accuracy/higher speed in PM conditions (PM and ongoing trials), but not in BC, was detected. Our data provide insight on the adverse role of WM load and attentional focus and the positive influence of reward in the PM performance of children with ADHD. Moreover, the relation between PM and ADHD symptoms paves the road for PM as a promising neuropsychological marker for ADHD diagnosis and intervention.

scholarly journals Increased Delay Discounting on a Novel Real-Time Task among Girls, but not Boys, with ADHD

2015 ◽  
Vol 22 (1) ◽  
pp. 12-23 ◽  
Author(s):  
Keri S. Rosch ◽  
Stewart H. Mostofsky
Keyword(s):  
Real Time ◽  
Delay Discounting ◽  
Diagnostic Group ◽  
Group Differences ◽  
The Novel ◽  
Typically Developing ◽  
Subjective Ratings ◽  
Time Discounting ◽  
Children With Adhd ◽  
Girls With Adhd

AbstractThe aim of this study was to examine delay discounting in girls and boys with ADHD-Combined type (ADHD-C) relative to typically developing (TD) children on two tasks that differ in the extent to which the rewards and delays were experienced by participants. Children ages 8–12 years with ADHD-C (n=65; 19 girls) and TD controls (n=55; 15 girls) completed two delay discounting tasks involving a series of choices between smaller, immediate and larger, delayed rewards. The classic delay discounting task involved choices about money at delays of 1–90 days and only some of the outcomes were actually experienced by the participants. The novel real-time discounting task involved choices about an immediately consumable reward (playing a preferred game) at delays of 25–100 s, all of which were actually experienced by participants. Participants also provided subjective ratings of how much they liked playing the game and waiting to play. Girls with ADHD-C displayed greater delay discounting compared to boys with ADHD-C and TD girls and boys on the real-time discounting task. Diagnostic group differences were not evident on the classic discounting task. In addition, children with ADHD-C reported wanting to play the game more and liking waiting to play the game less than TD children. This novel demonstration of greater delay discounting among girls with ADHD-C on a discounting task in which the rewards are immediately consumable and the delays are experienced in real-time informs our understanding of sex differences and motivational processes in children with ADHD. (JINS, 2016, 22, 12–23)

scholarly journals Probabilistic Learning in Children With Attention-Deficit/Hyperactivity Disorder

2020 ◽  
pp. 108705472090509 ◽  
Author(s):  
Marjolein Luman ◽  
Tieme W. P. Janssen ◽  
Marleen Bink ◽  
Rosa van Mourik ◽  
Athanasios Maras ◽  
...  
Keyword(s):  
Instrumental Learning ◽  
Learning Task ◽  
Learning Phase ◽  
Learning Problems ◽  
Typically Developing ◽  
Probabilistic Learning ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Initial Learning ◽  
Reward Probability

Objective: The current study examined instrumental learning in ADHD. Method: A total of 58 children with ADHD and 58 typically developing (TD) children performed a probabilistic learning task using three reward probability conditions (100%, 85%, 70% reward). After a learning phase, application of what was learned was assessed in a test phase. Results: Results showed that children with ADHD performed less accurate compared with TD children during the learning phase, particularly in the 100% and 85% reward probability conditions. These findings were accompanied by a blunted learning rate in the first few task trials. Furthermore, children with ADHD showed poorer application of what was learned. Conclusion: To conclude, children with ADHD show initial learning problems, but increased performance in a similar manner as TD children independent of the probability of reward, although they fail to apply their knowledge. Findings are of clinical relevance as the application of knowledge is important to successfully adapt to daily challenges in life.

scholarly journals Can auditory warning signals normalize eye movements in children with ADHD?

2020 ◽  
Vol 29 (12) ◽  
pp. 1635-1644
Author(s):  
Johan Lundin Kleberg ◽  
Matilda A. Frick ◽  
Karin C. Brocki
Keyword(s):  
Reaction Times ◽  
Saccadic Latency ◽  
Temporary Increase ◽  
Typically Developing ◽  
Warning Signals ◽  
Attention Task ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Latency Variability ◽  
Auditory Warning

Abstract Attenuated baseline arousal has been hypothesized to underlie symptoms of attention deficit/hyperactivity disorder (ADHD). A behavioral signature of reduced baseline arousal is an increased beneficiary effect of warning signals in reaction tasks. This paradoxical effect is believed to be caused by a temporary increase in arousal induced by warning signals. In a preregistered study, we tested the hypothesis that children with high levels of ADHD symptoms would be hyperresponsive to warning signals in a well-established visual attention task (the gap/overlap paradigm). Previous studies using this task have found slower and more variable saccadic reaction times in children with ADHD compared to typically developing children, suggesting that these eye movement metrics are candidate biomarkers. We examined 71 children, of which 1/3 had a diagnosis of ADHD, using both dimensional analyses and group comparisons. Previously reported findings of reduced saccadic latency and increased latency variability were replicated. Importantly, saccadic latency was normalized by auditory warning signals. Analyses of pupil dilation, a physiological index of arousal and locus coeruleus-noradrenergic activity, confirmed that warning signals led to enhanced arousal. Our findings are novel and contribute to our understanding of arousal and attention in ADHD and have implications for treatment and interventions.

Night-to-Night Variability of Sleep in Children With ADHD and Typically Developing Controls

2015 ◽  
Vol 22 (10) ◽  
pp. 942-946 ◽  
Author(s):  
Abbey Poirier ◽  
Penny Corkum
Keyword(s):  
Mental Health ◽  
Sleep Duration ◽  
Sleep Problems ◽  
Mental Health Disorders ◽  
Typically Developing ◽  
Children With Adhd ◽  
Sleep Parameters ◽  
Health Disorders ◽  
Objective Research ◽  
Age And Sex

Objective: Research results on the nature of sleep problems in children with ADHD are highly inconsistent. It is frequently reported that children with ADHD show more night-to-night variability in sleep than their typically developing (TD) peers, but this finding is also inconsistent. Lack of methodological control may account for these inconsistent findings. The current study examined the night-to-night variability of sleep between TD children and children with ADHD who were rigorously diagnosed, medication naïve, and free from comorbid mental health disorders. Method: Sleep parameters were analyzed for night-to-night variability across 4 weekday nights using actigraphy in 50 children with ADHD and 50 age- and sex-matched TD children. Results: There was a significant night-to-night variability for only sleep duration, but this was similar in both groups. Conclusion: These findings suggest that sleep problems in children with ADHD are not due to greater variability in sleep parameters relative to their TD peers.

scholarly journals Development of Hot and Cold Executive Function in Boys and Girls With ADHD

2016 ◽  
Vol 21 (4) ◽  
pp. 305-315 ◽  
Author(s):  
Erik Winther Skogli ◽  
Per Normann Andersen ◽  
Kjell Tore Hovik ◽  
Merete Øie
Keyword(s):  
Executive Function ◽  
Developmental Trajectories ◽  
Phenotypic Traits ◽  
Adhd Group ◽  
Typically Developing ◽  
Test Results ◽  
Children With Adhd ◽  
Emotional Salience ◽  
Girls With Adhd

Objective: To investigate the development of executive function with pronounced emotional salience (hot EF) and less pronounced emotional salience (cold EF) in boys and girls with ADHD relative to typically developing (TD) children. Method: Seventy-five children with ADHD and 47 TD children were assessed with hot and cold EF tests at baseline and after 2 years. Results: Despite considerable maturation, the ADHD group remained impaired on all cold EF tests relative to TD children after 2 years. There was no effect of gender on cold EF test results. Females with ADHD outperformed TD counterparts on hot EF at baseline. Females with ADHD showed deteriorating hot EF performance, while TD counterparts showed improved hot EF performance across time. Conclusion: Enduring cold EF impairments after 2 years may reflect stable phenotypic traits in children with ADHD. Results indicate divergent developmental trajectories of hot EF in girls with ADHD relative to TD counterparts.

scholarly journals Head motion in children with ADHD during resting-state brain imaging

2014 ◽  
Author(s):  
Xiang-zhen Kong
Keyword(s):  
Resting State ◽  
Head Motion ◽  
Control Group ◽  
Adhd Group ◽  
Typically Developing ◽  
Children With Adhd ◽  
Neural Imaging ◽  
Hyperactivity Disorder ◽  
Healthy Control ◽  
Motion Parameters

Resting-state functional MRI (rs-fMRI) has become an important method for analyzing the neural mechanisms underlying mental disorders. But studies targeting head motion during an rs-fMRI examination are rare. Since head motion may pollute the data in the neural imaging studies and further mislead the understanding of the causes of some disorders, systematic investigations on this topic were badly needed. To this end, in this study, children with attention-deficit/hyperactivity disorder (ADHD) and demographically-matched typically developing control (TDC) participants underwent an rs-fMRI examination. We obtained a summary motion index and six mean single head motion parameters (three translational and three rotational) for each participant. With the summary index, we found that motion was significantly increased in the ADHD group and the results showed that the increase was mainly contributed by the motion around and along the superior-to-inferior direction. Moreover, the classification analysis showed that these head motion parameters during scanning could accurately distinguish children with ADHD from the healthy control group. These results suggest that accounting for head motion during scanning may be helpful for ADHD diagnosis and treatment with neuroimaging.

scholarly journals Sensory Behaviours and Resting Parasympathetic Functions among Children with and without ADHD

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Ivan Neil Gomez ◽  
Lissa Martha Domondon ◽  
Hector WH Tsang ◽  
Chetwyn CH Chan ◽  
Cynthia YY Lai
Keyword(s):  
Sensory Processing ◽  
Sensory Profile ◽  
Controlled Environment ◽  
Typically Developing ◽  
Experimental Protocol ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Adhd Children ◽  
The Relationship ◽  
Moderate Positive Correlation

Previous studies suggest that parasympathetic functions support sensory behaviours. However, the relationship between sensory behaviours and parasympathetic functions remain inconclusive and inconsistent among children with and without attention-deficit hyperactivity disorder (ADHD). This research aims to examine the sensory behaviours and resting parasympathetic functions among children with and without ADHD. We compared sensory behaviours and baseline parasympathetic functions of 64 participants, with 42 typically developing and 24 ADHD male children aged 7–12 years. Sensory behaviours were evaluated using the sensory profile. Baseline parasympathetic functions were indexed using the normalized unit of heart rate variability high-frequency bands (HF n.u.). Children underwent an experimental protocol consisting of watching a silent cartoon movie while HF n.u. is continuously monitored, within a controlled environment. The results of this research showed significantly lower HF n.u. (t(64) = 7.84, p < 0.01 ) and sensory processing total score (t(64) = 14.13 =  p < 0.01 ) among children with ADHD compared to their typically developing peers. Likewise, a significant moderate positive correlation (r = 0.36, p < 0.05 ) was found between the HF n.u. and sensory profile total scores among children with ADHD. Children with ADHD have significantly lower resting state parasympathetic functions compared to their typically developing peers.

scholarly journals Friendships of Adolescents With Attention-Deficit/Hyperactivity Disorder

2020 ◽  
Vol 35 (4) ◽  
pp. 266-279
Author(s):  
Cynthia Maya Beristain ◽  
Judith Wiener
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Behavior Problems ◽  
Attention Deficit ◽  
Typically Developing ◽  
Hyperactivity Disorder ◽  
Best Friends ◽  
Frequency Of Contact ◽  
Girls With Adhd

The purpose of this study was to determine whether adolescents with and without attention-deficit/hyperactivity disorder (ADHD) differ regarding their friendships. The sample comprised 107 adolescents (59 ADHD, 48 typically developing comparison), ages 13 to 18 years. Adolescents and their parents completed questionnaires that measured the number and duration of the adolescents’ friendships, the frequency of contact they had with their friends, and the characteristics of their friends. Adolescents with and without ADHD did not differ in the number of friends they nominated, the duration of their friendships, and the frequency of contact with friends. Adolescents with ADHD were more likely to have friends who were younger or older by two or more years and close friends with behavior problems than comparison adolescents. Girls with ADHD had fewer of their friendships corroborated by parents than girls without ADHD, and fewer of their best friends attending their school. Only girls with ADHD had friends whom they initially met online.

scholarly journals Dissociable effects of ADHD and Methylphenidate treatment on the capture and the inhibition of impulsive actions

2020 ◽  
Author(s):  
Aurélie Grandjean ◽  
Isabel Suarez ◽  
Aline Miquee ◽  
David DaFonseca ◽  
Laurence Anne Casini
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Attention Deficit ◽  
Selective Inhibition ◽  
Typically Developing ◽  
Interference Control ◽  
Typically Developing Children ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Prepotent Response

The deficit in “interference control” commonly reported in children with Attention Deficit Hyperactivity Disorder (ADHD) could be due to at least two distinct processes, which are not disentangled in most studies: a larger susceptibility to activating prepotent response impulses and a deficit in suppressing them. In this study, we investigated the effect of 1/ADHD and 2/ MPH, on these two components of interference control.We compared interference control between children with ADHD without medication, children with ADHD under methylphenidate (MPH), and typically developing children performing a Simon conflict task.The main findings were that 1/ children with ADHD were more susceptible to reacting impulsively but less efficient at suppressing impulsive actions than typically developing children, and 2/ MPH improved the selective inhibition of impulsive actions but did not modify the strength of response impulse activation.

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