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https://www.readbyqxmd.com/read/28925800/investigation-of-attention-deficit-hyperactivity-disorder-adhd-sub-types-in-children-via-eeg-frequency-domain-analysis
#1
Ramazan Aldemir, Esra Demirci, Huseyin Per, Mehmet Canpolat, Sevgi Özmen, Mahmut Tokmakçı
This study aims to investigate the frequency domain effects and changes in Electroencephalographic (EEG) signals in children aged 7-12 years old who were diagnosed with Attention Deficit and Hyperactivity Disorder (ADHD) and which labelled subtypes of ADHD.The study's sample consisted of 20 healthy children and 20 ADHD children as control group. Of the 20 participants who were diagnosed with ADHD, 10 were classified as ADHD-I (inattentive subtype ADHD) and the other 10 were classified as ADHD-C (combined subtype ADHD)...
September 19, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28924202/coupling-and-dynamics-of-cortical-and-autonomic-signals-are-linked-to-central-inhibition-during-the-wake-sleep-transition
#2
Christine Ulke, Jue Huang, Justus T C Schwabedal, Galina Surova, Roland Mergl, Tilman Hensch
Maintaining temporal coordination across physiological systems is crucial at the wake-sleep transition. As shown in recent studies, the degree of coordination between brain and autonomic arousal influences attention, which highlights a previously unrecognised point of potential failure in the attention system. To investigate how cortical and autonomic dynamics are linked to the attentive process we analysed electroencephalogram, electrocardiogram and skin conductance data of 39 healthy adults recorded during a 2-h resting-state oddball experiment...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28921526/parsing-heterogeneity-in-attention-deficit-hyperactivity-disorder-using-eeg-based-subgroups
#3
Sandra K Loo, James J McGough, James T McCracken, Susan L Smalley
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a heterogeneous condition for which multiple efforts to characterize brain state differences are underway. The objective of this study was to identify distinct subgroups of resting electroencephalography (EEG) profiles among children with and without ADHD and subsequently provide extensive clinical characterization of the subgroups. METHODS: Latent class analysis was used with resting state EEG recorded from a large sample of 781 children with and without ADHD (N = 620 ADHD, N = 161 Control), aged 6-18 years old...
September 18, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28860979/childhood-trauma-associated-with-enhanced-high-frequency-band-powers-and-induced-subjective-inattention-of-adults
#4
Seung-Hwan Lee, Yeonsoo Park, Min Jin Jin, Yeon Jeong Lee, Sang Woo Hahn
Childhood trauma can lead to various psychological and cognitive symptoms. It has been demonstrated that high frequency electroencephalogram (EEG) powers could be closely correlated with inattention. In this study, we explored the relationship between high frequency EEG powers, inattention, symptoms of adult attention deficit hyperactivity disorder (ADHD), and childhood traumatic experiences. A total of 157 healthy Korean adult volunteers were included and divided into two groups using the Childhood Trauma Questionnaire (CTQ) score...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28830028/increased-rates-of-intermittent-rhythmic-delta-and-theta-activity-in-the-electroencephalographies-of-adult-patients-with-attention-deficit-hyperactivity-disorder
#5
Dominique Endres, Simon Maier, Bernd Feige, Nora Bel Mokhtar, Kathrin Nickel, Peter Goll, Simon A Meyer, Swantje Matthies, Dieter Ebert, Alexandra Philipsen, Evgeniy Perlov, Ludger Tebartz van Elst
INTRODUCTION: Adult attention-deficit hyperactivity disorder (ADHD) is a common neurodevelopmental disorder. In subgroups of patients with a (para)epileptic pathomechanism, this might be due to intermittent rhythmic delta or theta activity (IRDA/IRTA). PARTICIPANTS AND METHODS: Using a fully data-driven analysis, we compared the IRDA/IRTA rates in the resting electroencephalography (EEG) results of 97 adult patients with ADHD and 30 control subjects. The IRDA/IRTA rates before hyperventilation (HV) and for HV difference (difference between IRDA/IRTA rate after and before HV) were compared between groups using a linear model...
August 19, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28803030/neurofeedback-sham-neurofeedback-and-cognitive-behavioural-group-therapy-in-adults-with-attention-deficit-hyperactivity-disorder-a-triple-blind-randomised-controlled-trial
#6
Michael Schönenberg, Eva Wiedemann, Alexander Schneidt, Jonathan Scheeff, Alexander Logemann, Philipp M Keune, Martin Hautzinger
BACKGROUND: Many studies suggest that electroencephalographic (EEG) neurofeedback might be beneficial in the treatment of attention-deficit hyperactivity disorder (ADHD). However, numbers of well controlled studies are low and neurofeedback techniques are regarded as highly controversial. The present trial examined the efficacy (compared with sham neurofeedback) and efficiency (compared with meta-cognitive therapy) of a standard EEG neurofeedback protocol in adults with ADHD. METHODS: We did a concurrent, triple-blind, randomised, controlled trial using authorised deception in adults with ADHD from one centre (University of Tübingen) in Tübingen, Germany...
August 9, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28800715/an-eeg-study-of-children-with-and-without-adhd-symptoms-between-group-differences-and-associations-with-sluggish-cognitive-tempo-symptoms
#7
Matthew A Jarrett, Philip A Gable, Ana T Rondon, Lauren B Neal, Hannah F Price, Dane C Hilton
OBJECTIVE: We examined differences between those with and without ADHD symptoms on resting state electroencephalography (EEG) indices and unique relations with sluggish cognitive tempo (SCT) symptoms. METHOD: Children with ADHD symptoms ( n = 21) and healthy controls ( n = 20) were assessed using rating scales, a neuropsychological task measuring sustained attention and inhibitory control, and EEG activity during a resting state period. Between-group, correlational, and regression analyses were conducted...
August 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28778058/response-to-adrenocorticotropic-in-attention-deficit-hyperactivity-disorder-like-symptoms-in-electrical-status-epilepticus-in-sleep-syndrome-is-related-to-electroencephalographic-improvement-a-retrospective-study
#8
Attila Altunel, Emine Özlem Altunel, Ali Sever
INTRODUCTION: Encephalopathy with electrical status epilepticus in sleep (ESES) syndrome is a rare epilepsy syndrome of childhood that is characterized by sleep-induced epileptiform discharges and problems with cognition or behavior. The neuropsychiatric symptoms in ESES syndrome, among which the ADHD-like symptoms are prominent, bear a close resemblance to symptoms in various developmental disorders. Positive response to adrenocorticotropic hormone (ACTH) is associated with the normalization of the EEG and improvement of neuropsychiatric function...
August 1, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28748735/an-eeg-investigation-of-the-attention-related-impact-of-mindfulness-training-in-youth-with-adhd-outcomes-and-methodological-considerations
#9
Annabel Sibalis, Karen Milligan, Carson Pun, Trish McKeough, Louis A Schmidt, Sidney J Segalowitz
OBJECTIVE: The current study examined the impact of an activity-based mindfulness treatment on EEG indices of attention in youth with ADHD aged 11 to 17 years compared with a waitlist control group. METHOD: Pre- and post-treatment, EEG was recorded as participants completed a single-point focus rest task and two active attention tasks. Theta power, beta power, and theta/beta ratio (TBR) were calculated during each task. RESULTS: A significant group by time by task interaction was found that indicated significant improvement in attentional ability, indexed by decreased TBR, for the treatment group but not controls...
July 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28690646/effects-of-lamotrigine-on-attention-deficit-hyperactivity-disorder-in-pediatric-epilepsy-patients
#10
Seung-A Han, Eu Jeen Yang, Mi-Kyoung Song, Sun Jun Kim
PURPOSE: The purpose of this study was to investigate the effects of lamotrigine for the treatment of attention-deficit hyperactivity disorder (ADHD) symptoms in children with epilepsy. METHODS: Pediatric patients newly diagnosed with epilepsy (n=90 [61 boys and 29 girls]; mean age, 9.1±3.4 years) were enrolled. All patients were evaluated with the Korean ADHD rating scale (K-ARS)-IV before treatment with lamotrigine and after doses had been administered. The mean interval of ADHD testing was approximately 12...
June 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28620288/age-related-changes-in-resting-state-eeg-activity-in-attention-deficit-hyperactivity-disorder-a-cross-sectional-study
#11
Katarzyna Giertuga, Marta Z Zakrzewska, Maksymilian Bielecki, Ewa Racicka-Pawlukiewicz, Malgorzata Kossut, Anita Cybulska-Klosowicz
Numerous studies indicate that attention deficit/hyperactivity disorder (ADHD) is related to some developmental trends, as its symptoms change widely over time. Nevertheless, the etiology of this phenomenon remains ambiguous. There is a disagreement whether ADHD is related to deviations in brain development or to a delay in brain maturation. The model of deviated brain development suggests that the ADHD brain matures in a fundamentally different way, and does not reach normal maturity at any developmental stage...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28587767/frontal-alpha-asymmetry-predicts-inhibitory-processing-in-youth-with-attention-deficit-hyperactivity-disorder
#12
Alissa J Ellis, Chantelle Kinzel, Giulia C Salgari, Sandra K Loo
INTRODUCTION: Atypical asymmetry in brain activity has been implicated in the behavioral and attentional dysregulation observed in ADHD. Specifically, asymmetry in neural activity in the right versus left frontal regions has been linked to ADHD, as well as to symptoms often associated with ADHD such as heightened approach behaviors, impulsivity and difficulties with inhibition. Clarifying the role of frontal asymmetry in ADHD-like traits, such as disinhibition, may provide information on the neurophysiological processes underlying these behaviors...
July 28, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28577262/altered-eeg-spectral-power-during-rest-and-cognitive-performance-a-comparison-of-preterm-born-adolescents-to-adolescents-with-adhd
#13
Anna-Sophie Rommel, Sarah-Naomi James, Gráinne McLoughlin, Daniel Brandeis, Tobias Banaschewski, Philip Asherson, Jonna Kuntsi
Preterm birth has been associated with an increased risk for ADHD-like behavioural symptoms and cognitive impairments. However, direct comparisons across ADHD and preterm-born samples on neurophysiological measures are limited. The aim of this analysis was to test whether quantitative EEG (QEEG) measures identify differences or similarities in preterm-born adolescents, compared to term-born adolescents with and without ADHD, during resting-state and cognitive task conditions. We directly compared QEEG activity between 186 preterm-born adolescents, 69 term-born adolescents with ADHD and 135 term-born control adolescents during an eyes-open resting-state condition (EO), which previously discriminated between the adolescents with ADHD and controls, and during a cued continuous performance task (CPT-OX)...
June 2, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28478887/investigating-the-neurobiology-of-schizophrenia-and-other-major-psychiatric-disorders-with-transcranial-magnetic-stimulation
#14
REVIEW
Rachel E Kaskie, Fabio Ferrarelli
Characterizing the neurobiology of schizophrenia and other major psychiatric disorders is one of the main challenges of the current research in psychiatry. The availability of Transcranial Magnetic Stimulation (TMS) allows to directly probe virtually any cortical areas, thus providing a unique way to assess the neurophysiological properties of cortical neurons. This article presents a review of studies employing TMS in combination with Motor Evoked Potentials (TMS/MEPs) and high density Electroencephalogram (TMS/hd-EEG) in schizophrenia and other major psychiatric disorders...
May 3, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28449561/differences-in-resting-state-quantitative-electroencephalography-patterns-in-attention-deficit-hyperactivity-disorder-with-or-without-comorbid-symptoms
#15
Jun Won Kim, Soo Yeon Kim, Jae-Won Choi, Kyoung Min Kim, Sojeong Hannah Nam, Kyung Joon Min, Young Sik Lee, Tae Young Choi
Objective: The aim of the present study was to evaluate the role of comorbid psychiatric symptoms on quantitative electroencephalogram (QEEG) activities in boys with the attention deficit/hyperactivity disorder (ADHD). Methods: All participants were male students in the second, third or fourth grade in elementary school. Therefore, there were no significant differences in age or sex. Participants with ADHD were assigned to one of three groups: pure ADHD (n=22), ADHD with depressive symptoms (n=11), or ADHD with problematic internet use (n=19)...
May 31, 2017: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28442359/emg-biofeedback-training-in-adult-attention-deficit-hyperactivity-disorder-an-active-control-training
#16
Beatrix Barth, Kerstin Mayer, Ute Strehl, Andreas J Fallgatter, Ann-Christine Ehlis
OBJECTIVE: The present study aimed at revealing neurophysiological effects induced by electromyography (EMG) based biofeedback, considered as a semi-active control condition in neurofeedback studies, in adult attention-deficit/hyperactivity disorder (ADHD) patients. METHODS: 20 adult ADHD patients trained their muscle activity in the left and right supraspinatus muscle over the course of 30 EMG biofeedback sessions. Changes induced by the EMG feedback were evaluated at a clinical and neurophysiological level; additionally, the relation between changes in EEG activity recorded at the vertex over the training course and changes of symptom severity over the treatment course were assessed in order to investigate the mechanisms underlying clinical effects of EMG biofeedback...
June 30, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28428624/attentional-selection-predicts-rapid-automatized-naming-ability-in-chinese-speaking-children-with-adhd
#17
Encong Wang, Meirong Sun, Ye Tao, Xiaoyi Gao, Jialiang Guo, Chenguang Zhao, Hui Li, Qiujin Qian, Zhanliang Wu, Yufeng Wang, Li Sun, Yan Song
Children with attention-deficit/hyperactivity disorder (ADHD) are reported to have a significantly higher risk of showing reading difficulties or disorders. Here, we aimed to identify the relationship between electroencephalographic (EEG) marker of spatial attention and reading ability in Chinese children with ADHD. First, we demonstrated that rapid automatized naming (RAN) is a strong predictor of reading ability in Chinese-speaking children. Then, EEG data of 9-to 15-year-old children with ADHD (n = 38) and typically developing (TD) controls (n = 36) were collected while the children performed a classical visual search task...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28289850/neurophysiological-correlates-of-attentional-fluctuation-in-attention-deficit-hyperactivity-disorder
#18
Celeste H M Cheung, Gráinne McLoughlin, Daniel Brandeis, Tobias Banaschewski, Philip Asherson, Jonna Kuntsi
Cognitive performance in attention-deficit/hyperactivity disorder (ADHD) is characterised, in part, by frequent fluctuations in response speed, resulting in high reaction time variability (RTV). RTV captures a large proportion of the genetic risk in ADHD but, importantly, is malleable, improving significantly in a fast-paced, rewarded task condition. Using the temporal precision offered by event-related potentials (ERPs), we aimed to examine the neurophysiological measures of attention allocation (P3 amplitudes) and preparation (contingent negative variation, CNV), and their associations with the fluctuating RT performance and its improvement in ADHD...
May 2017: Brain Topography
https://www.readbyqxmd.com/read/28226287/to-make-a-molehill-out-of-a-mountain-an-erp-study-on-cognitive-reappraisal-of-negative-pictures-in-children-with-and-without-adhd
#19
Valerie Van Cauwenberge, Rachida El Kaddouri, Karel Hoppenbrouwers, Jan R Wiersema
OBJECTIVE: We investigated cognitive reappraisal in children with ADHD by means of the late positive potential (LPP) and self-report ratings. We expected diminished LPP modulation following reappraisal and lower self-report scores in children with ADHD. METHODS: Eighteen children with ADHD and 24 typically developing (TD) children (8-12years) performed a cognitive reappraisal task, while EEG was recorded, and filled out a questionnaire on cognitive reappraisal. RESULTS: Despite the lack of main reappraisal effects on LPP, the LPP was less positively modulated during reappraisal in ADHD compared to TD children...
April 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28224622/slc2a3-single-nucleotide-polymorphism-and-duplication-influence-cognitive-processing-and-population-specific-risk-for-attention-deficit-hyperactivity-disorder
#20
Sören Merker, Andreas Reif, Georg C Ziegler, Heike Weber, Ute Mayer, Ann-Christine Ehlis, Annette Conzelmann, Stefan Johansson, Clemens Müller-Reible, Indrajit Nanda, Thomas Haaf, Reinhard Ullmann, Marcel Romanos, Andreas J Fallgatter, Paul Pauli, Tatyana Strekalova, Charline Jansch, Alejandro Arias Vasquez, Jan Haavik, Marta Ribasés, Josep Antoni Ramos-Quiroga, Jan K Buitelaar, Barbara Franke, Klaus-Peter Lesch
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a common, highly heritable neurodevelopmental disorder with profound cognitive, behavioral, and psychosocial impairments with persistence across the life cycle. Our initial genome-wide screening approach for copy number variants (CNVs) in ADHD implicated a duplication of SLC2A3, encoding glucose transporter-3 (GLUT3). GLUT3 plays a critical role in cerebral glucose metabolism, providing energy for the activity of neurons, which, in turn, moderates the excitatory-inhibitory balance impacting both brain development and activity-dependent neural plasticity...
February 22, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
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