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Stimulants, cognition and ADHD
Baroni, Argelinda; Castellanos, FXavier
Psychostimulants such as methylphenidate and amphetamine are the first-line pharmacologic treatments for Attention-Deficit/Hyperactivity Disorder (ADHD). They are considered prototypical cognitive enhancers but their effects on standard laboratory indices of cognitive function are modest when administered acutely, and even less substantial chronically. However, large-scale observational studies in patients with ADHD have detected stimulant-associated decreases of criminal acts, transportation accidents, slightly improved academic performance, and possible protection against drug abuse. These effects likely reflect modulation of broader domains such as emotional regulation and motivation which have been under-examined. Efforts to clarify the ontological relations between cognitive tasks and their underlying constructs should be incorporated into the Research Domain Criteria project and similar harmonization initiatives.
ISI:000218444200015
ISSN: 2352-1554
CID: 2782412
Neuroanatomic and cognitive abnormalities in attention-deficit/hyperactivity disorder in the era of 'high definition' neuroimaging
Baroni, Argelinda; Castellanos, F Xavier
The ongoing release of the Human Connectome Project (HCP) data is a watershed event in clinical neuroscience. By attaining a quantum leap in spatial and temporal resolution within the framework of a twin/sibling design, this open science resource provides the basis for delineating brain-behavior relationships across the neuropsychiatric landscape. Here we focus on attention-deficit/hyperactivity disorder (ADHD), which is at least partly continuous across the population, highlighting constructs that have been proposed for ADHD and which are included in the HCP phenotypic battery. We review constructs implicated in ADHD (reward-related processing, inhibition, vigilant attention, reaction time variability, timing and emotional lability) which can be examined in the HCP data and in future 'high definition' clinical datasets.
PMCID:4293331
PMID: 25212469
ISSN: 0959-4388
CID: 1258382
Review of The Parasomnias and Other Sleep-Related Movement Disorders by Michael J. Thorpy and Giuseppe Plazzi [Review]
Baroni, Argelinda; Zandieh, Stephanie O
ISI:000354531100016
ISSN: 1557-8992
CID: 1883012
Teaching evidence-based approaches to suicide risk assessment and prevention that enhance psychiatric training
Zisook, Sidney; Anzia, Joan; Atri, Ashutosh; Baroni, Argelinda; Clayton, Paula; Haller, Ellen; Lomax, James W; Mann, J John; Oquendo, Maria A; Pato, Michele; Perez-Rodriguez, M Mercedes; Prabhakar, Deepak; Sen, Srijan; Thrall, Grace; Yaseen, Zimri S
This report describes one in a series of National Institute of Health (NIH) supported conferences aimed at enhancing the ability of leaders of psychiatry residency training to teach research literacy and produce both clinician-scholars and physician-scientists in their home programs. Most psychiatry training directors would not consider themselves research scholars or even well-schooled in evidence based practice. Yet they are the front line educators to prepare tomorrow's psychiatrists to keep up with, critically evaluate, and in some cases actually participate in the discovery of new and emerging psychiatric knowledge. This annual conference is meant to help psychiatry training directors become more enthusiastic, knowledgeable and pedagogically prepared to create research-friendly environments at their home institutions, so that more trainees will, in turn, become research literate, practice evidence-based psychiatry, and enter research fellowships and careers. The overall design of each year's meeting is a series of plenary sessions introducing participants to new information pertaining to the core theme of that year's meeting, integrated with highly interactive small group teaching sessions designed to consolidate knowledge and provide pragmatic teaching tools appropriate for residents at various levels of training. The theme of each meeting, selected to be a compelling and contemporary clinical problem, serves as a vehicle to capture training directors' attention while teaching relevant brain science, research literacy and effective pedagogy. This report describes the content and assessment of the 2011 annual pre-meeting, "Evidence-based Approaches to Suicide Risk Assessment and Prevention: Insights from the Neurosciences and Behavioral Sciences for use in Psychiatry Residency Training."
PMCID:3529811
PMID: 22995449
ISSN: 0010-440x
CID: 363042
Sleep Disturbances in Pediatric Bipolar Disorder: A Comparison between Bipolar I and Bipolar NOS
Baroni, Argelinda; Hernandez, Mariely; Grant, Marie C; Faedda, Gianni L
Introduction: The diagnosis of bipolar disorder (BD) in youths has been controversial, especially for the subtype BD not otherwise specified (BD-NOS). In spite of growing evidence that sleep is a core feature of BD, few studies characterize and compare sleep disturbances in youth with BD type I (BD-I) and BD-NOS. Sleep disturbances are frequently reported in clinical descriptions of children and adolescents with BD, however the reporting of the frequency and characteristics of sleep symptoms in youth with BD-NOS and BD-I during episodes remain poor. This study compares symptom of sleep disturbance as occurring in manic and depressive episodes in BD-I and BD-NOS youth using Kiddie-schedule for affective disorders and schizophrenia, present and lifetime version (K-SADS-PL) interview data. The study also addresses whether symptoms of sleep disturbance vary in different age groups. Materials and Methods: The sample consisted of 70 children and adolescent outpatients at an urban specialty clinic (42M/28F, 10.8 +/- 3.6 years old) including 24 BD-I and 46 BD-NOS assessed using K-SADS-PL-parent interview. Results: Sleep disturbances including insomnia and decreased need for sleep were reported by 84.3% of the sample. Enuresis was diagnosed in 27% of sample. There were no significant differences in frequency of sleep symptoms between BD-I and BD-NOS. Regardless of BD subtype, current functioning was negatively correlated with decreased need for sleep but not insomnia, and regardless of BD subtype. Conclusion: The majority of youth with BD presents with sleep symptoms during mood episodes. BD-NOS presents with the same proportion of sleep symptoms as BD-I in our sample.
PMCID:3308174
PMID: 22454624
ISSN: 1664-0640
CID: 363052
Pediatric bipolar disorder versus severe mood dysregulation: risk for manic episodes on follow-up
Stringaris, Argyris; Baroni, Argelinda; Haimm, Caroline; Brotman, Melissa; Lowe, Catherine H; Myers, Frances; Rustgi, Eileen; Wheeler, Wanda; Kayser, Reilly; Towbin, Kenneth; Leibenluft, Ellen
OBJECTIVE: An important question in pediatric bipolar research is whether marked nonepisodic irritability is a manifestation of bipolar disorder in youth. This study tests the hypothesis that youth with severe mood dysregulation (SMD), a category created for the purpose of studying children presenting with severe nonepisodic irritability, will be significantly less likely to develop (hypo-)manic or mixed episodes over time than will youth with bipolar disorder (BD). METHOD: Patients with SMD (N = 84) and narrowly defined BD (N = 93) at baseline were followed up in 6-monthly intervals using the relevant K-SADS modules to ascertain (hypo-)manic or mixed episodes. RESULTS: Only one of 84 SMD subjects (1/84 [1.2%]; 95% confidence interval CI = 0.0003 to 0.064) experienced a (hypo-)manic or mixed episode during the study (median follow-up = 28.7 months). The frequency of such episodes was more than 50 times higher in those with narrowly defined BD (58/93 [62.4%]; 95% CI 0.52 to 0.72). CONCLUSIONS: These data suggest that, over an approximately 2-year follow-up period, youth with SMD are unlikely to develop (hypo-)manic or mixed episodes.
PMCID:3000433
PMID: 20410732
ISSN: 0890-8567
CID: 363062
The origins of electroconvulsive therapy: Prof. Bini's first report on ECT [Historical Article]
Faedda, Gianni L; Becker, Ina; Baroni, Argelinda; Tondo, Leonardo; Aspland, Ellen; Koukopoulos, Athanasios
In August 1939, at the 3rd International Neurological Congress in Copenhagen, Professor Lucio Bini reported on the first use of electricity to induce a seizure for therapeutic purposes in psychotic patients. At that time, the discovery of ECT amounted to a therapeutic revolution, helping millions of mentally ill patients and furthering the scientific understanding of several disorders. Although electricity had been used to treat several physical ailments and mental disorders, electricity, rather than the convulsive crisis, was considered therapeutic. In modern times von Meduna was the first to clearly recognize the therapeutic value of 'complete' seizures, but it was thanks to Cerletti's dedication to biological research and Bini's contribution that ECT became one of the most effective and safe treatments available. ECT remains a highly effective and safe treatment option and thousands of papers have been published on ECT since the original report by Bini. To celebrate this anniversary, we translated Prof. Bini's original report as an abstract presented in Copenhagen in 1939.
PMID: 19268370
ISSN: 0165-0327
CID: 363082
Practitioner review: the assessment of bipolar disorder in children and adolescents
Baroni, Argelinda; Lunsford, Jessica R; Luckenbaugh, David A; Towbin, Kenneth E; Leibenluft, Ellen
BACKGROUND: An increasing number of youth are being diagnosed with, and treated for, bipolar disorder (BD). Controversy exists about whether youth with non-episodic irritability and symptoms of attention deficit hyperactivity disorder (ADHD) should be considered to have a developmental presentation of mania. METHOD: A selective review of the literature related to this question, along with recommendations to guide clinical assessment. RESULTS: Data indicate differences between youth with episodic mania and those with non-episodic irritability in longitudinal diagnostic associations, family history, and pathophysiology. In youth with episodic mania, elation and irritability are both common during manic episodes. CONCLUSIONS: In diagnosing mania in youth, clinicians should focus on the presence of episodes that consist of a distinct change in mood accompanied by concurrent changes in cognition and behavior. BD should not be diagnosed in the absence of such episodes. In youth with ADHD, symptoms such as distractibility and agitation should be counted as manic symptoms only if they are markedly increased over the youth's baseline symptoms at the same time that there is a distinct change in mood and the occurrence of other associated symptoms of mania. Although different techniques for diagnosing comorbid illnesses have not been compared systematically, it appears most rational to diagnose co-occurring illnesses such as ADHD only if the symptoms of the co-occurring illness are present when the youth is euthymic.
PMCID:2786990
PMID: 19309325
ISSN: 0021-9630
CID: 363072