Search results for " hyperactivity"

SINGLE-TRIAL BASED INDEPENDENT COMPONENT ANALYSIS ON MISMATCH NEGATIVITY IN CHILDREN

2010

Independent component analysis (ICA) does not follow the superposition rule. This motivates us to study a negative event-related potential — mismatch negativity (MMN) estimated by the single-trial based ICA (sICA) and averaged trace based ICA (aICA), respectively. To sICA, an optimal digital filter (ODF) was used to remove low-frequency noise. As a result, this study demonstrates that the performance of the sICA+ODF and aICA could be different. Moreover, MMN under sICA+ODF fits better with the theoretical expectation, i.e., larger deviant elicits larger MMN peak amplitude.

93. Structural brain abnormalities in attention-deficit/hyperactivity disorder: A voxel-based MRI study in adult patients

2009

Emotional interference and attentional processing in premenstrual syndrome

2017

Abstract Background and objectives Premenstrual syndrome (PMS) is characterized by menstrual cycle-related affective, behavioral, and/or somatic symptoms. By applying the emotional Stroop task (EST) the current study examined if changes in processing emotional information, which have been demonstrated in affective disorders, are also present in PMS. Methods Via online screening, telephone interviews, and daily records over two months 55 women for the PMS group (on the basis of the specific inclusion criteria and a prospectively confirmed PMS) and 55 ‘non-PMS’ controls were recruited. All participants completed three emotional Stroop tasks (EST) with neutral and negative word, picture, and f…

Neurochemical alterations in women with borderline personality disorder and comorbid attention-deficit hyperactivity disorder

2010

Borderline personality disorder (BPD) is associated with structural and functional brain changes. Recent models and findings refer to alterations of glutamate and total N-acetylaspartate (tNAA) in this condition.Absolute quantities of tNAA, creatine, glutamate, glutamine, myoinositol and total choline were measured using 3 Tesla magnetic resonance spectroscopy of the left anterior cingulate cortex and the left cerebellum in 14 unmedicated women with BPD and comorbid attention-deficit hyperactivity disorder (ADHD) and 18 healthy women. Both groups were matched with respect to age, education and premorbid intelligence.In the anterior cingulate, we found significantly higher tNAA and glutamate…

Disturbed brain activation during a working memory task in drug-naive adult patients with ADHD.

2010

Neuroimaging studies in attention-deficit/hyperactivity disorder (ADHD) have shown abnormalities in several brain areas including the frontostriatal circuitry and were mostly conducted in children and adolescents. We investigated 30 never-medicated adult ADHD patients (16 males) and 30 matched healthy control individuals. Functional magnetic resonance imaging was acquired during a working memory paradigm (n-back). Group activation maps and group differences of activation were calculated using voxel-based analyses. The generic activation pattern was more extended in the control group. In ADHD patients, significantly decreased activation was found in the right inferior parietal cortex. Distur…

The Effect of Hypertensive Disorders of Pregnancy on the Risk of ADHD in the Offspring

2017

Objective: Evidence suggests that perinatal factors may contribute to the development of ADHD. Our objective was to examine the association between hypertensive disorders of pregnancy (HDP) and ADHD, and behavioral difficulties among 7-year-old children. Method: The study cohort consisted of 13,192 children (weighted = 13,500) who participated in the Millennium Cohort Study (MCS) at age 7. HDP (raised blood pressure, preeclampsia, eclampsia, and toxemia) were reported by mothers 9 months postdelivery. ADHD was reported by parents at age 7 years. Weighted logistic regression models were used to assess the association. Results: In all, 1,069 (7.9%) women reported HDP and 166 (1.2%) children h…

Dysfunctional cortical inhibition in adult ADHD: neural correlates in auditory event-related potentials.

2013

In recent times, the relevance of an accurate diagnosis of attention-deficit/hyperactivity disorder (ADHD) in adults has been the focus of several studies. No longer considered a pathology exclusive to children and adolescents, and taking into account its social implications, developing enhanced support tools for the current diagnostic procedure becomes a priority. Here we present a method for the objective assessment of ADHD in adults using chirp-evoked, paired auditory late responses (ALRs) combined with a two-dimensional ALR denoising scheme to extract correlates of intracortical inhibition. Our method allows for an effective single-sweep denoising, thus requiring less trials to obtain r…

Mothers’ stress and behavioral and emotional problems in children with ADHD. Mediation of coping strategies

2020

The present study compared mothers' stress and the behavioral/emotional problems of children with attention deficit hyperactivity disorder (ADHD) and children with typical development (TD). Furthermore, the relationships among the mothers' stress, the children's behavioral/emotional problems, and the mothers' coping strategies in both groups were identified. The contribution of behavioral/emotional problems to parenting stress in children with ADHD was also studied through mediation effects of the mothers' coping strategies. The parenting stress, coping orientation to problems, and strengths and difficulties questionnaires were administered to 72 mothers of children from 7 to 11 years old: …

The importance of impulsivity and attention switching deficits in perpetrators convicted for intimate partner violence.

2018

It has been stated that Attention deficit hyperactivity disorder (ADHD) increases the likelihood of risky behavior such as intimate partner violence (IPV), but the cognitive mechanisms that facilitate or underlie these types of behavior remain unexplained. In this regard, several authors have established that impulsivity and inattentive symptoms might affect basic processes such as emotional decoding and set-shifting abilities, which are important processes for emotional and behavioral regulation. Hence, these symptoms entail a reduction in sensitivity to key contextual stimuli. Accordingly, the main aim of this study was to examine the involvement of impulsivity (assessed by self-reports) …

A study on sexual functioning in adults with attention‐deficit/hyperactivity disorder

2020

PURPOSE Sexual dysfunction has been ignored in adults with attention-deficit hyperactivity disorder (A-ADHD). This study examined sexual function in adults with ADHD compared to a healthy control group. DESIGN AND METHODS The experimental group (N = 63, mean age = 31.11 ± 4.29, females = 31) were recruited among referrals with ADHD to an outpatient A-ADHD clinic. The DIVA-2 (Diagnostic Interview for ADHD in adults) and the schedule for affective disorders and schizophrenia (SADS) were used to assess for A-ADHD and comorbid psychiatric disorders, respectively. The healthy groups (N = 66, mean age = 31.37 ± 4.30, females = 31) were demographically matched and had no psychiatric disorders base…