Kiki D Chang

University of California, Los Angeles, Los Angeles, CA, USA

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Publications (38)168.11 Total impact

  • Article: Bipolar Depression in Pediatric Populations : Epidemiology and Management.
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    ABSTRACT: Depression in children and adolescents with bipolar disorder is more commonly observed than mania or hypomania, and is associated with significant functional disability in multiple environmental realms. Optimal management of pediatric bipolar depression is often defined by its multimodal nature with emphasis on both psychopharmacological and psychosocial treatment. This article provides a brief overview of the epidemiology and clinical course of pediatric bipolar depression, a clinically-oriented guide to the evidence-based psychopharmacological and psychosocial management of bipolar depression in youth, and suggestions on how best to integrate medication and therapy. Recommended treatment for bipolar depression in pediatric populations usually includes both medication and psychosocial interventions given a paucity of double-blind, placebo-controlled psychopharmacological studies. Lithium and lamotrigine are feasible and tentatively efficacious options; however, treatment with quetiapine monotherapy may be no better than placebo. Furthermore, some youth may be at heightened risk for developing manic symptoms after treatment with selective serotonin reuptake inhibitors (SSRIs). Psychotherapy, either alone or adjunctively with medications, provides practitioners with a safe and feasible alternative. Interpersonal and Social Rhythm Therapy for Adolescents (IPSRT-A), Child- and Family-Focused Cognitive Behavioral Therapy (CFF-CBT), Dialectical Behavior Therapy for Adolescents (DBT-A), family psychoeducation, and Family Focused Therapy for Adolescents (FFT-A) are evidence-based treatments available to clinicians treating youth with bipolar depression.
    Paediatric Drugs 03/2013; · 1.79 Impact Factor
  • Article: Early intervention for symptomatic youth at risk for bipolar disorder: a randomized trial of family-focused therapy.
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    ABSTRACT: Depression and brief periods of (hypo)mania are linked to an increased risk of progression to bipolar I or II disorder (BD) in children of bipolar parents. This randomized trial examined the effects of a 4-month family-focused therapy (FFT) program on the 1-year course of mood symptoms in youth at high familial risk for BD, and explored its comparative benefits among youth in families with high versus low expressed emotion (EE). Participants were 40 youth (mean 12.3±2.8 years, range 9-17) with BD not otherwise specified, major depressive disorder, or cyclothymic disorder who had a first-degree relative with BD I or II and active mood symptoms (Young Mania Rating Scale [YMRS]>11 or Child Depression Rating Scale>29). Participants were randomly allocated to FFT-High Risk version (FFT-HR; 12 sessions of psychoeducation and training in communication and problem-solving skills) or an education control (EC; 1-2 family sessions). Youth in FFT-HR had more rapid recovery from their initial mood symptoms (hazard ratio = 2.69, p = .047), more weeks in remission, and a more favorable trajectory of YMRS scores over 1 year than youth in EC. The magnitude of treatment effect was greater among youth in high-EE (versus low-EE) families. FFT-HR may hasten and help sustain recovery from mood symptoms among youth at high risk for BD. Longer follow-up will be necessary to determine whether early family intervention has downstream effects that contribute to the delay or prevention of full manic episodes in vulnerable youth. Clinical trial registration information-Early Family-Focused Treatment for Youth at Risk for Bipolar Disorder; http://www.clinicaltrials.gov/; NCT00943085.
    Journal of the American Academy of Child and Adolescent Psychiatry 02/2013; 52(2):121-31. · 4.98 Impact Factor
  • Article: Brain structural response in individuals at familial risk for bipolar disorder: a tale of two outcomes.
    Manpreet K Singh, Kiki D Chang
    Biological psychiatry 01/2013; 73(2):109-10. · 8.93 Impact Factor
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    Article: Reward processing in adolescents with bipolar I disorder.
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    ABSTRACT: Bipolar disorder (BD) is a debilitating psychiatric condition that commonly begins in adolescence, a developmental period that has been associated with increased reward seeking. Because youth with BD are especially vulnerable to negative risk-taking behaviors, understanding the neural mechanisms by which dysregulated affect interacts with the neurobehavioral processing of reward is clearly important. One way to clarify how manic symptoms evolve in BD is to "prime" the affect before presenting rewarding stimuli. The objective of this study was to investigate the neural effects of an affective priming task designed to positively induce mood before reward processing in adolescents with and without BD. Neural activity and behaviors during the anticipation of and response to monetary reward and loss after an affective prime were compared using functional magnetic resonance imaging in 13- to 18-year-old adolescents with a recent onset of BD-I (n = 24) and demographically matched healthy comparison youth (n = 24). Compared with the healthy control youth, youth with BD had speeded reaction times and showed decreased activation in the thalamus and inferior temporal gyrus while anticipating gains after priming but increased activations in the middle frontal gyrus and parietal cortices while anticipating losses after priming. Youth with BD also showed less activation in the inferior parietal lobule, thalamus, and superior frontal gyrus while receiving losses after priming. Aberrant prefrontal and subcortical activations during reward processing suggest mechanisms that may underlie disordered self-awareness during goal pursuit and motivation in BD. Longitudinal studies are needed to examine whether this pattern of neural activation predicts a poorer long-term outcome.
    Journal of the American Academy of Child and Adolescent Psychiatry 01/2013; 52(1):68-83. · 4.98 Impact Factor
  • Article: The neural effects of psychotropic medications in children and adolescents.
    Manpreet K Singh, Kiki D Chang
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    ABSTRACT: Little is known about the neurobiological effects of psychotropic medications used in the treatment of children and adolescents diagnosed with a psychiatric disorder. This review provides a synopsis of the literature demonstrating the neural effects associated with exposure to psychotropic medication in youth using multimodal neuroimaging. The article concludes by illustrating how, taken together, these studies suggest that pharmacological interventions during childhood do indeed affect brain structure and function in a detectable manner, and the effects appear to be ameliorative.
    Child and adolescent psychiatric clinics of North America 10/2012; 21(4):753-71. · 2.88 Impact Factor
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    Dataset: SinghSGC2012
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    Article: Volumetric reductions in the subgenual anterior cingulate cortex in adolescents with bipolar I disorder.
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    ABSTRACT: A range of prefrontal and subcortical volumetric abnormalities have been found in adults and adolescents with bipolar disorder. It is unclear, however, if these deficits are present early in the onset of mania or are a consequence of multiple mood episodes or prolonged exposure to medication. The goal of this study was to examine whether youth with bipolar I disorder who recently experienced their first episode of mania are characterized by brain volumetric abnormalities. Anatomical images from magnetic resonance imaging of 26 13- to 18-year-old adolescents with bipolar I disorder and 24 age-comparable healthy controls with no personal or family history of psychopathology were analyzed using whole-brain voxel-based morphometry (VBM). Compared with healthy controls, adolescents with bipolar I disorder had significantly less gray matter volume in the left subgenual cingulate cortex [p<0.05, family-wise error (FWE)-corrected]. Adolescents with a recent single episode of mania have smaller subgenual cingulate cortex volume than do their healthy counterparts, suggesting that this anomaly occurs early in the onset of, or may predate the disorder. Longitudinal studies are needed to examine the impact of this volumetric reduction on the course and outcome of this disorder.
    Bipolar Disorders 09/2012; 14(6):585-96. · 5.29 Impact Factor
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    Article: Abnormal amygdala and prefrontal cortex activation to facial expressions in pediatric bipolar disorder.
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    ABSTRACT: Previous functional magnetic resonance imaging (fMRI) studies in pediatric bipolar disorder (BD) have reported greater amygdala and less dorsolateral prefrontal cortex (DLPFC) activation to facial expressions compared to healthy controls. The current study investigates whether these differences are associated with the early or late phase of activation, suggesting different temporal characteristics of brain responses. A total of 20 euthymic adolescents with familial BD (14 male) and 21 healthy control subjects (13 male) underwent fMRI scanning during presentation of happy, sad, and neutral facial expressions. Whole-brain voxelwise analyses were conducted in SPM5, using a three-way analysis of variance (ANOVA) with factors group (BD and healthy control [HC]), facial expression (happy, sad, and neutral versus scrambled), and phase (early and late, corresponding to the first and second half of each block of faces). There were no significant group differences in task performance, age, gender, or IQ. Significant activation from the main effect of group included greater DLPFC activation in the HC group, and greater amygdala/hippocampal activation in the BD group. The interaction of Group × Phase identified clusters in the superior temporal sulcus/insula and visual cortex, where activation increased from the early to late phase of the block for the BD but not the HC group. These findings are consistent with previous studies that suggest deficient prefrontal cortex regulation of heightened amygdala response to emotional stimuli in pediatric BD. Increasing activation over time in superior temporal and visual cortices suggests difficulty processing or disengaging attention from emotional faces in BD.
    Journal of the American Academy of Child and Adolescent Psychiatry 08/2012; 51(8):821-31. · 4.98 Impact Factor
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    Article: Information processing in adolescents with bipolar I disorder.
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    ABSTRACT: Cognitive models of bipolar I disorder (BD) may aid in identification of children who are especially vulnerable to chronic mood dysregulation. Information-processing biases related to memory and attention likely play a role in the development and persistence of BD among adolescents; however, these biases have not been extensively studied in youth with BD. We administered the self-referent encoding task and the dot-probe task to adolescents with bipolar I disorder (BD, n = 35) and a demographically similar healthy comparison group (HC, n = 25) at baseline, and at a 1-year follow-up in a subset of this cohort (n = 22 per group). At both baseline and 1-year follow-up, there were significant interactions of group (BD, HC) and valence of stimulus (positive, negative adjective) on endorsement and recall of self-referent adjectives. HC adolescents endorsed and recalled more positive self-referent adjectives at baseline and follow-up while adolescents with BD endorsed and recalled more negative self-referent adjectives at baseline but not follow-up. Over time, depression symptomatology was associated with impaired memory for positive self-referent adjectives. There were no group differences in attentional bias at either time points. Adolescents with BD exhibit bias away from endorsement and recall of positive adjectives, which remained stable over time and independent of mood state.
    Journal of Child Psychology and Psychiatry 03/2012; 53(9):937-45. · 4.28 Impact Factor
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    Article: Biological Evidence for a Neurodevelopmental Model of Pediatric Bipolar Disorder.
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    ABSTRACT: Bipolar disorder (BD) is a chronic illness with high morbidity and mortality. Pediatric onset BD has a more severe course of illness with higher rates of relapse and psychosocial impairment. Discovering interventions early in the course of BD in youth is paramount to preventing full illness expression and improve functioning in these individuals throughout the lifespan. It is therefore important to understand the mechanisms involved in the development of BD in order to determine which youth are at most risk and provide biological targets for early intervention. To serve this cause, we propose a neurodevelopmental model of BD, based on the existing data that implicate prefrontal - subcortical network dysfunction, caused by pre-existing genetic susceptibility and triggered by pathological reactions to stress and chronic inflammatory processes.
    The Israel journal of psychiatry and related sciences 01/2012; 49(1):28-43. · 0.68 Impact Factor
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    Article: Characterization and factors associated with sleep quality in adolescents with bipolar I disorder.
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    ABSTRACT: Sleep disturbance is an early marker for bipolar disorder (BD) onset in youth. We characterized sleep quality in adolescents experiencing mania within the last 6-12 months. We examined the association between mood and sleep in 27 adolescents with BD and 24 matched healthy controls (HC). Subjects were assessed by parent and teen report of sleep, a semi-structured clinical interview, the Young Mania Rating Scale (YMRS), and the Childhood Depression Rating Scale (CDRS-R). Average BD youth YMRS (mean 20.3 ± 7.3) and CDRS-R (mean 42.4 ± 14.1) scores indicated they were still ill at time of assessment. Compared to HCs, adolescents with BD have distinct patterns of prolonged sleep onset latency, frequent nighttime awakenings, and increased total time awake. Mood symptoms, specifically excessive guilt, self-injurious behavior, and worsening evening mood, interfered with sleep. Further studies are needed to determine whether early regulation of sleep would improve long-term outcome in BD youth.
    Child Psychiatry and Human Development 06/2011; 42(6):724-40. · 1.93 Impact Factor
  • Article: Concerns regarding the inclusion of temper dysregulation disorder with dysphoria in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition.
    The Journal of Clinical Psychiatry 05/2011; 72(9):1257-62. · 5.80 Impact Factor
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    Article: Neurochemical deficits in the cerebellar vermis in child offspring of parents with bipolar disorder.
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    ABSTRACT: We aimed to compare concentrations of N-acetyl aspartate, myo-inositol, and other neurometabolites in the cerebellar vermis of offspring at risk for bipolar disorder (BD) and healthy controls to examine whether changes in these neuronal metabolite concentrations occur in at-risk offspring prior to the onset of mania. A total of 22 children and adolescents aged 9-17 years with a familial risk for bipolar I or II disorder [at-risk offspring with non-bipolar I disorder mood symptoms (AR)], and 25 healthy controls (HC) were examined using proton magnetic resonance spectroscopy at 3T to study metabolite concentrations in an 8-cc voxel in the cerebellar vermis. Decreased myo-inositol and choline concentrations in the vermis were seen in the AR group compared to HC (p<0.01). Decreased cellular metabolism and interference with second messenger pathways may be present in the cerebellar vermis in youth at risk for BD as evident by decreased myo-inositol and choline concentrations in this region. These results may be limited by a cross-sectional design, co-occurring diagnoses, and medication exposure. Longitudinal studies are necessary to determine whether early neurochemical changes can predict the development of mania. Improved methods for identifying children with certain neurochemical vulnerabilities may inform preventive and early intervention strategies prior to the onset of mania.
    Bipolar Disorders 03/2011; 13(2):189-97. · 5.29 Impact Factor
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    Article: Early psychosocial intervention for youth at risk for bipolar I or II disorder: a one-year treatment development trial.
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    ABSTRACT: Previous studies have identified behavioral phenotypes that predispose genetically vulnerable youth to a later onset of bipolar I or II disorder, but few studies have examined whether early psychosocial intervention can reduce risk of syndromal conversion. In a one-year open trial, we tested a version of family-focused treatment adapted for youth at high risk for bipolar disorder (FFT-HR). A referred sample of 13 children (mean 13.4±2.69 years; 4 boys, 9 girls) who had a parent with bipolar I or II disorder participated at one of two outpatient specialty clinics. Youth met DSM-IV criteria for major depressive disorder (n=8), cyclothymic disorder (n=1), or bipolar disorder not otherwise specified (n=4), with active mood symptoms in the past month. Participants were offered FFT-HR (12 sessions in four months) with their parents, plus psychotropic medications as needed. Independent evaluators assessed depressive symptoms, hypomanic symptoms, and global functioning at baseline and then every four months for one year, with retrospective severity and impairment ratings made for each week of the follow-up interval. Families were mostly adherent to the treatment protocol (85% retention), and therapists administered the FFT-HR manual with high levels of fidelity. Youth showed significant improvements in depression, hypomania, and psychosocial functioning scores on the Adolescent Longitudinal Interval Follow-up Evaluation. They also showed significant improvements in Young Mania Rating Scale and Children's Depression Rating Scale scores. FFT-HR is a promising intervention for youth at high risk for BD. Larger-scale randomized trials that follow youth into young adulthood will be necessary to determine whether early psychosocial intervention can reduce the probability of developing bipolar I or II disorder among genetically vulnerable youth.
    Bipolar Disorders 02/2011; 13(1):67-75. · 5.29 Impact Factor
  • Article: Atypical antipsychotics for acute manic and mixed episodes in children and adolescents with bipolar disorder: efficacy and tolerability.
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    ABSTRACT: The diagnosis of bipolar disorder (BD) in children is increasing, and often requires a comprehensive treatment plan to address a complex array of symptoms and associated morbidities. Pharmacotherapy, in combination with psychotherapeutic interventions, is essential for the treatment and stabilization of disrupted mood. Current evidence collectively demonstrates, by randomized controlled design, that atypical antipsychotics have efficacy for the treatment of acute manic or mixed symptoms in children and adolescents with BD. Additional longitudinal and biological studies are warranted to characterize the effects of atypical antipsychotics on all phases and stages of bipolar illness development in children and adolescents.
    Drugs 03/2010; 70(4):433-42. · 4.23 Impact Factor
  • Article: Course and impact of bipolar disorder in young patients.
    Kiki D Chang
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    ABSTRACT: The presentation of bipolar disorder in children and adolescents may vary from its presentation in adults. Rage, irritability, and long episodes are common manifestations of mania in young people with bipolar disorder. Frequent comorbid disorders in young patients include ADHD and anxiety disorders. Prodromal and subsyndromal states of bipolar disorder, such as bipolar disorder NOS, present opportunities for early intervention and prevention. Early recognition and intervention are crucial, because untreated pediatric bipolar disorder becomes chronic, has a high incidence of relapse, and has a poor prognosis.
    The Journal of Clinical Psychiatry 02/2010; 71(2):e05. · 5.80 Impact Factor
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    Article: Neural correlates of response inhibition in pediatric bipolar disorder.
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    ABSTRACT: Pediatric bipolar disorder is characterized by core deficits in mood and executive function and commonly co-occurs with attention-deficit/hyperactivity disorder (ADHD). We aimed to examine response inhibition in this population, as an element of executive function, which, if aberrant, may interfere with learning and information processing. Children (9-18 years) with bipolar I or II disorder (BD, n = 26) and age, gender, and intelligence quotient (IQ) comparable healthy children (HC, n = 22) without any psychopathology were given a standardized Go/NoGo computerized task measuring response inhibition. A whole-brain functional magnetic resonance imaging (MRI) group analysis was performed using statistical parametric mapping software (SPM2) for comparing NoGo to Go epochs. There were no statistically significant group differences between groups in age, gender, or ethnicity. The BD group had high rates of co-morbid disorders, including 81% with ADHD, 62% with oppositional defiant disorder (ODD), and 46% with anxiety disorders. This BD group had fewer correct responses on Go (84% vs. 96%, T[46] = 3.35, p = 0.002) and overall (85% vs. 94%, T[46] = 4.12, p = 0.0002) trials as compared to the HC group. However, there were no statistically significant group differences in response inhibition on NoGo trials (p = 0.11). In the NoGo-Go contrast, the BD group showed increased neural activation in the right dorsolateral prefrontal cortex (DLPFC) compared to HC (T[46] = 4.21, p < 0.001). During accurate NoGo but impaired Go trial performance, children with BD showed increased right DLPFC activation versus controls, suggesting increased recruitment of executive control regions for accurate response inhibition. Studies relating these results to mood regulation in pediatric BD are warranted.
    Journal of child and adolescent psychopharmacology 02/2010; 20(1):15-24. · 2.59 Impact Factor
  • Article: Psychotropic medication exposure and age at onset of bipolar disorder in offspring of parents with bipolar disorder.
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    ABSTRACT: Exposure to psychotropic medications before the onset of bipolar disorder (BD) in children may have profound effects on the course of illness. Both antidepressant and stimulant exposure have been proposed to hasten the course of BD development, whereas mood stabilizers have been proposed as protective. We sought to describe psychotropic medication exposure in a cohort of children at risk for BD and retrospectively determine the effect of medication exposure on age at onset (AAO) of BD. Subjects were 106 children and adolescents who had at least 1 parent with BD. Of these, 63 had BD I or BD II and 43 had subsyndromal symptoms of BD. AAO was determined as nearest month of first manic or hypomanic episode. Past psychotropic medication exposure prior to AAO was determined through interview and chart review. Both groups had high rates of exposure to psychotropic medications. Antidepressant or stimulant exposure was not correlated with an earlier AAO of BD. However, mood stabilizer exposure was associated with a later AAO. Children with full or subsyndromal BD are frequently exposed to a variety of psychotropic medications before their first manic episode. Our findings do not support that early stimulant or antidepressant exposure leads to an earlier AAO of BD. However, early mood stabilizer exposure may be associated with delayed AAO. Longitudinal studies are needed to clarify these results.
    Journal of child and adolescent psychopharmacology 02/2010; 20(1):25-32. · 2.59 Impact Factor
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    Article: Diagnosing bipolar disorder in children and adolescents.
    Kiki D Chang
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    ABSTRACT: Pediatric-onset bipolar disorder is common but often difficult to diagnose in younger patients. Clinicians should be sure to establish the presence of a full manic episode to make the diagnosis of bipolar I disorder. Because adult criteria are used for children and adolescents, clinicians also should be aware of developmental norms that can help to make an accurate diagnosis. Bipolar disorder NOS and other disorders in children and adolescents may be prodromal states for bipolar disorder, especially in the presence of a positive family history.
    The Journal of Clinical Psychiatry 11/2009; 70(11):e41. · 5.80 Impact Factor
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    Article: Limbic and corpus callosum aberrations in adolescents with bipolar disorder: a tract-based spatial statistics analysis.
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    ABSTRACT: Bipolar disorder (BD) is a common and debilitating condition, often beginning in adolescence. Converging evidence from genetic and neuroimaging studies indicates that white matter abnormalities may be involved in BD. In this study, we investigated white matter structure in adolescents with familial bipolar disorder using diffusion tensor imaging (DTI) and a whole brain analysis. We analyzed DTI images using tract-based spatial statistics (TBSS), a whole-brain voxel-by-voxel analysis, to investigate white matter structure in 21 adolescents with BD, who also were offspring of at least one parent with BD, and 18 age- and IQ-matched control subjects. Fractional anisotropy (FA; a measure of diffusion anisotropy), trace values (average diffusivity), and apparent diffusion coefficient (ADC; a measure of overall diffusivity) were used as variables in this analysis. In a post hoc analysis, we correlated between FA values, behavioral measures, and medication exposure. Adolescents with BD had lower FA values than control subjects in the fornix, the left mid-posterior cingulate gyrus, throughout the corpus callosum, in fibers extending from the fornix to the thalamus, and in parietal and occipital corona radiata bilaterally. There were no significant between-group differences in trace or ADC values and no significant correlation between behavioral measures, medication exposure, and FA values. Significant white matter tract alterations in adolescents with BD were observed in regions involved in emotional, behavioral, and cognitive regulation. These results suggest that alterations in white matter are present early in the course of disease in familial BD.
    Biological psychiatry 05/2009; 66(3):238-44. · 8.93 Impact Factor