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1.
BMC Psychiatry ; 21(1): 206, 2021 04 23.
Artículo en Inglés | MEDLINE | ID: mdl-33892684

RESUMEN

BACKGROUND: Adolescent-onset depression often results in a chronic and recurrent course, and is associated with worse outcomes relative to adult-onset depression. Targeting habitual depressive rumination, a specific known risk factor for relapse, may improve clinical outcomes for adolescents who have experienced a depressive episode. Randomized controlled trials (RCTs) thus far have demonstrated that rumination-focused cognitive behavioral therapy (RFCBT) reduces depressive symptoms and relapse rates in patients with residual depression and adolescents and young adults with elevated rumination. This was also observed in a pilot RCT of adolescents at risk for depressive relapse. Rumination can be measured at the self-report, behavioral, and neural levels- using patterns of connectivity between the Default Mode Network (DMN) and Cognitive Control Network (CCN). Disrupted connectivity is a putative important mechanism for understanding reduced rumination via RFCBT. A feasibility trial in adolescents found that reductions in connectivity between DMN and CCN regions following RFCBT were correlated with change in rumination and depressive symptoms. METHOD: This is a phase III two-arm, two-stage, RCT of depression prevention. The trial tests whether RFCBT reduces identified risk factors for depressive relapse (rumination, patterns of neural connectivity, and depressive symptoms) in adolescents with partially or fully remitted depression and elevated rumination. In the first stage, RFCBT is compared to treatment as usual within the community. In the second stage, the comparator condition is relaxation therapy. Primary outcomes will be (a) reductions in depressive rumination, assessed using the Rumination Response Scale, and (b) reductions in resting state functional magnetic resonance imaging connectivity of DMN (posterior cingulate cortex) to CCN (inferior frontal gyrus), at 16 weeks post-randomization. Secondary outcomes include change in symptoms of depression following treatment, recurrence of depression over 12 months post-intervention period, and whether engagement with therapy homework (as a dose measure) is related to changes in the primary outcomes. DISCUSSION: RFCBT will be evaluated as a putative preventive therapy to reduce the risk of depressive relapse in adolescents, and influence the identified self-report, behavioral, and neural mechanisms of change. Understanding mechanisms that underlie change in rumination is necessary to improve and further disseminate preventive interventions. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03859297 , registered 01 March 2019.


Asunto(s)
Terapia Cognitivo-Conductual , Depresión , Adolescente , Depresión/terapia , Giro del Cíngulo , Hábitos , Humanos , Ensayos Clínicos Controlados Aleatorios como Asunto , Recurrencia , Adulto Joven
2.
Depress Anxiety ; 36(2): 141-152, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30516853

RESUMEN

BACKGROUND: Three well-established intrinsic connectivity networks (ICNs) involved in cognitive-affective processing include the cognitive control network (CCN), default mode network (DMN), and salience and emotional network (SEN). Despite recent advances in understanding developmental changes in these ICNs, the majority of research has focused on single seeds or networks in isolation with limited age ranges. Additionally, although internalizing psychopathologies (IPs), such as anxiety and depression, are often characterized by maladaptive cognitive-affective processing styles, it is not clear how IP history influences age-related changes in brain networks. METHOD: The current study aimed to characterize the normative development of the CCN, DMN, and SEN across a large age-span (7-29 year olds) of typically developing (TD) individuals (n = 97). We also explore how age may impact differences in network connectivity between TD individuals and patients with IPs (n = 136). RESULTS: Among TD individuals, DMN and CCN connectivity strengthened with age, whereas connectivity between the SEN and ventromedial prefrontal cortex weakened across development. When exploring group (IP vs. TD) differences, the IP group was characterized by greater connectivity between the CCN and cerebellum and between the SEN and caudate from childhood to early adulthood, relative to TD individuals. In addition, patients with IPs, versus TD individuals, exhibited reduced connectivity between the SEN and medial frontal gyrus from adolescence to adulthood. CONCLUSIONS: The current findings shed light on differential age-related changes in brain network patterns among psychiatrically free, TD individuals and those with internalizing disorders, and may provide plausible targets for novel mechanism-based treatments that differ based on developmental stage.


Asunto(s)
Ansiedad/fisiopatología , Encéfalo/crecimiento & desarrollo , Encéfalo/fisiopatología , Depresión/fisiopatología , Vías Nerviosas/fisiología , Vías Nerviosas/fisiopatología , Descanso/psicología , Adolescente , Adulto , Afecto , Ansiedad/patología , Encéfalo/patología , Encéfalo/fisiología , Estudios de Casos y Controles , Cerebelo/patología , Cerebelo/fisiopatología , Niño , Cognición , Depresión/patología , Emociones , Femenino , Humanos , Masculino , Vías Nerviosas/crecimiento & desarrollo , Vías Nerviosas/patología , Corteza Prefrontal/patología , Corteza Prefrontal/fisiopatología , Adulto Joven
3.
Hum Brain Mapp ; 38(6): 2939-2954, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-28345197

RESUMEN

Many individuals with major depressive disorder (MDD) experience cognitive dysfunction including impaired cognitive control and negative cognitive styles. Functional connectivity magnetic resonance imaging studies of individuals with current MDD have documented altered resting-state connectivity within the default-mode network and across networks. However, no studies to date have evaluated the extent to which impaired connectivity within the cognitive control network (CCN) may be present in remitted MDD (rMDD), nor have studies examined the temporal stability of such attenuation over time. This represents a major gap in understanding stable, trait-like depression risk phenotypes. In this study, resting-state functional connectivity data were collected from 52 unmedicated young adults with rMDD and 47 demographically matched healthy controls, using three bilateral seeds in the CCN (dorsolateral prefrontal cortex, inferior parietal lobule, and dorsal anterior cingulate cortex). Mean connectivity within the entire CCN was attenuated among individuals with rMDD, was stable and reliable over time, and was most pronounced with the right dorsolateral prefrontal cortex and right inferior parietal lobule, results that were corroborated by supplemental independent component analysis. Attenuated connectivity in rMDD appeared to be specific to the CCN as opposed to representing attenuated within-network coherence in other networks (e.g., default-mode, salience). In addition, attenuated connectivity within the CCN mediated relationships between rMDD status and cognitive risk factors for depression, including ruminative brooding, pessimistic attributional style, and negative automatic thoughts. Given that these cognitive markers are known predictors of relapse, these results suggest that attenuated connectivity within the CCN could represent a biomarker for trait phenotypes of depression risk. Hum Brain Mapp 38:2939-2954, 2017. © 2017 Wiley Periodicals, Inc.


Asunto(s)
Mapeo Encefálico , Encéfalo/patología , Trastornos del Conocimiento/etiología , Trastorno Depresivo Mayor/complicaciones , Vías Nerviosas/fisiología , Adolescente , Encéfalo/diagnóstico por imagen , Trastorno Depresivo Mayor/diagnóstico por imagen , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Imagen por Resonancia Magnética , Masculino , Vías Nerviosas/diagnóstico por imagen , Oxígeno/sangre , Análisis de Componente Principal , Reproducibilidad de los Resultados , Factores de Riesgo , Pensamiento/fisiología , Adulto Joven
4.
Cogn Affect Behav Neurosci ; 17(2): 394-405, 2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-27921216

RESUMEN

The aim of the present study was to use fMRI to examine the neural correlates of engaging in rumination among a sample of remitted depressed adolescents, a population at high risk for future depressive relapse. A rumination induction task was used to assess differences in the patterns of neural activation during rumination versus a distraction condition among 26 adolescents in remission from major depressive disorder (rMDD) and in 15 healthy control adolescents. Self-report depression and rumination, as well as clinician-rated depression, were also assessed among all participants. All of the participants recruited regions in the default mode network (DMN), including the posterior cingulate cortex, medial prefrontal cortex, inferior parietal lobe, and medial temporal gyrus, during rumination. Increased activation in these regions during rumination was correlated with increased self-report rumination and symptoms of depression across all participants. Adolescents with rMDD also exhibited greater activation in regions involved in visual, somatosensory, and emotion processing than did healthy peers. The present findings suggest that during ruminative thought, adolescents with rMDD are characterized by increased recruitment of regions within the DMN and in areas involved in visual, somatosensory, and emotion processing.


Asunto(s)
Encéfalo/fisiopatología , Trastorno Depresivo Mayor/fisiopatología , Trastorno Depresivo Mayor/psicología , Pensamiento/fisiología , Adolescente , Encéfalo/diagnóstico por imagen , Mapeo Encefálico , Terapia Cognitivo-Conductual , Trastorno Depresivo Mayor/diagnóstico por imagen , Trastorno Depresivo Mayor/terapia , Análisis Factorial , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Vías Nerviosas/diagnóstico por imagen , Vías Nerviosas/fisiopatología , Pruebas Neuropsicológicas , Proyectos Piloto , Escalas de Valoración Psiquiátrica , Descanso , Autoinforme
5.
Neuropsychobiology ; 71(2): 85-96, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25871424

RESUMEN

BACKGROUND: Imaging techniques are increasingly being used to examine the neural correlates of stress and emotion processing; however, relations between the primary stress hormone cortisol, the functional magnetic resonance imaging (fMRI) environment, and individual differences in response to emotional challenges are not yet well studied. The present study investigated whether cortisol activity prior to, and during, an fMRI scan may be related to neural processing of emotional information. METHODS: Twenty-six healthy individuals (10 female) completed a facial emotion perception test during 3-tesla fMRI. RESULTS: Prescan cortisol was significantly correlated with enhanced amygdala, hippocampal, and subgenual cingulate reactivity for facial recognition. Cortisol change from pre- to postscanning predicted a greater activation in the precuneus for both fearful and angry faces. A negative relationship between overall face accuracy and activation in limbic regions was observed. CONCLUSION: Individual differences in response to the fMRI environment might lead to a greater heterogeneity of brain activation in control samples, decreasing the power to detect differences between clinical and comparison groups. © 2015 S. Karger AG, Basel.

6.
J Cogn Psychother ; 28(1): 3-19, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24944436

RESUMEN

Among adolescents there is evidence that cognitive change partially mediates the effect of cognitive behavioral therapy (CBT) on depression outcome. However, prior studies have been limited by small samples, narrow measures of cognition, and failure to compare cognitive change following CBT to cognitive change following antidepressant medication. This study examined whether change in four cognitive constructs (cognitive distortions, cognitive avoidance, positive outlook, and solution-focused thinking) mediated change in depression severity in a sample of 291 adolescents who participated in the Treatment for Adolescents with Depression Study (TADS). TADS assessed the effects of CBT, fluoxetine, and their combination on depression severity. All three treatments were associated with change in the cognitive constructs and combination treatment produced the greatest change. Furthermore, change in the cognitive constructs partially mediated change in depression severity within all three treatments. Results implicated positive outlook as the construct most associated with change in depression severity over 36 weeks.

7.
J Affect Disord Rep ; 162024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38769946

RESUMEN

Background: Trait rumination is a habitual response to negative experiences that can emerge during adolescence, increasing risk of depression. Trait rumination is correlated with poor inhibitory control (IC) and altered default mode network (DMN) and cognitive control network (CCN) engagement. Provoking state rumination in high ruminating youth permits investigation of rumination and IC at the neural level, highlighting potential treatment targets. Methods: Fifty-three high-ruminating youth were cued with an unresolved goal that provoked state rumination, then completed a modified Sustained Attention to Response Task (SART) that measures IC (commissions on no-go trials) in a functional MRI study. Thought probes measured state rumination about that unresolved goal and task-focused thoughts during the SART. Results: Greater state rumination during the SART was correlated with more IC failures. CCN engagement increased during rumination (relative to task-focus), including left dorsolateral prefrontal cortex and dorsalmedial prefrontal cortex. Relative to successful response suppression, DMN engagement increased during IC failures amongst individuals with higher state and trait rumination. Exploratory analyzes suggested more bothersome unresolved goals predicted higher left DLPFC activation during rumination. Limitations: The correlational research design did not permit a direct contrast of causal accounts of the relationship between rumination and IC. Conclusions: State rumination was associated with impaired IC and disrupted modulation of DMN and CCN. Increased CCN engagement during rumination suggested effortful suppression of negative thoughts, and this was greater for more bothersome unresolved goals. Relative task disengagement was observed during rumination-related errors. DMN-CCN dysregulation in high-ruminating youth may be an important treatment target.

8.
Biol Psychiatry Glob Open Sci ; 4(1): 1-10, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38021251

RESUMEN

Background: Rumination-focused cognitive behavioral therapy (RF-CBT) is designed to reduce depressive rumination or the habitual tendency to dwell on experiences in a repetitive, negative, passive, and global manner. RF-CBT uses functional analysis, experiential exercises, and repeated practice to identify and change the ruminative habit. This preregistered randomized clinical trial (NCT03859297, R61) is a preregistered replication of initial work. We hypothesized a concurrent reduction of both self-reported rumination and cross-network connectivity between the left posterior cingulate cortex and right inferior frontal and inferior temporal gyri. Methods: Seventy-six youths with a history of depression and elevated rumination were randomized to 10 to 14 sessions of RF-CBT (n = 39; 34 completers) or treatment as usual (n = 37; 28 completers). Intent-to-treat analyses assessed pre-post change in rumination response scale and in functional connectivity assessed using two 5 minute, 12 second runs of resting-state functional magnetic resonance imaging. Results: We replicated previous findings: a significant reduction in rumination response scale and a reduction in left posterior cingulate cortex to right inferior frontal gyrus/inferior temporal gyrus connectivity in participants who received RF-CBT compared with those who received treatment as usual. Reductions were large (z change = 0.84; 0.73, respectively [ps < .05]). Conclusions: This adolescent clinical trial further demonstrates that depressive rumination is a brain-based mechanism that is modifiable via RF-CBT. Here, we replicated that RF-CBT reduces cross-network connectivity, a possible mechanism by which rumination becomes less frequent, intense, and automatic. This National Institute of Mental Health-funded fast-fail study continues to the R33 phase during which treatment-specific effects of RF-CBT will be compared with relaxation therapy.

9.
Suicide Life Threat Behav ; 53(3): 510-521, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36942887

RESUMEN

INTRODUCTION: Rumination, or repetitive and habitual negative thinking, is associated with psychopathology and related behaviors in adolescents, including non-suicidal self-injury (NSSI). Despite the link between self-reported rumination and NSSI, there is limited understanding of how rumination is represented at the neurobiological level among youth with NSSI. METHOD: We collected neuroimaging and rumination data from 39 adolescents with current or past NSSI and remitted major depression. Participants completed a rumination induction fMRI task, consisting of both rumination and distraction blocks. We examined brain activation associated with total lifetime NSSI in the context of the rumination versus distraction contrast. RESULTS: Lifetime NSSI was associated with a greater discrepancy in activation during rumination relative to distraction conditions in clusters including the precuneus, posterior cingulate, superior, and middle frontal gyrus, and cerebellum. CONCLUSION: Difficulties associated with rumination in adolescents with NSSI may be related to requiring greater cognitive effort to distract from ruminative content in addition to increased attention in the context of ruminative content. Increasing knowledge of neurobiological circuits and nodes associated with rumination and their relationship with NSSI may enable us to better tailor interventions that can facilitate lasting well-being and neurobiological change.


Asunto(s)
Trastorno Depresivo Mayor , Conducta Autodestructiva , Humanos , Adolescente , Red en Modo Predeterminado , Conducta Autodestructiva/psicología , Giro del Cíngulo/diagnóstico por imagen , Trastorno Depresivo Mayor/diagnóstico por imagen , Autoinforme
10.
Bipolar Disord ; 13(3): 287-93, 2011 May.
Artículo en Inglés | MEDLINE | ID: mdl-21676131

RESUMEN

OBJECTIVES: Cognitive and emotional deficits have been documented in youth with pediatric bipolar disorder (PBD); however, to date, a systematic evaluation of comprehension and memory for verbally presented information has not been conducted. The effect of emotion on comprehension and memory for verbally presented material also has not been examined. We examined whether youth with PBD have difficulty recalling the big picture (macrostructure) as well as the story details (microstructure). METHODS: A total of 35 youth with PBD and 25 healthy controls completed an Affective Story Task. A psychological processing model allowed for the examination of both the macrostructure and microstructure of language comprehension. RESULTS: Youth with PBD were capable of comprehending the gist of the stories and were not impaired by emotion when comprehending and remembering macrostructure. However, negative emotional material was found to proactively interfere with the encoding and recall of microstructure. Level of depression appeared to impact recall of microstructure, but not macrostructure. CONCLUSIONS: Negatively valenced material may impair subsequent comprehension and memory for details among youth with PBD. This deficit could impact the daily functioning of these youth, as the perception of negative affect may derail aspects of successful comprehension and learning.


Asunto(s)
Trastorno Bipolar/complicaciones , Trastornos del Conocimiento/etiología , Comprensión/fisiología , Trastornos de la Memoria/etiología , Recuerdo Mental/fisiología , Adolescente , Análisis de Varianza , Niño , Trastornos del Conocimiento/diagnóstico , Discapacidades del Desarrollo/etiología , Emociones , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Aprendizaje Verbal
11.
J Clin Child Adolesc Psychol ; 39(4): 559-67, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20589566

RESUMEN

Adolescents with depression and high levels of oppositionality often are particularly difficult to treat. Few studies, however, have examined treatment outcomes among youth with both externalizing and internalizing problems. This study examines the effect of fluoxetine, cognitive behavior therapy (CBT), the combination of fluoxetine and CBT, and placebo on co-occurring oppositionality within a sample of depressed adolescents. All treatments resulted in decreased oppositionality at 12 weeks. Adolescents receiving fluoxetine, either alone or in combination with CBT, experienced greater reductions in oppositionality than adolescents not receiving antidepressant medication. These results suggest that treatments designed to alleviate depression can reduce oppositionality among youth with a primary diagnosis of depression.


Asunto(s)
Déficit de la Atención y Trastornos de Conducta Disruptiva/terapia , Terapia Cognitivo-Conductual , Trastorno Depresivo/terapia , Fluoxetina/uso terapéutico , Adolescente , Antidepresivos de Segunda Generación/uso terapéutico , Niño , Terapia Combinada , Femenino , Humanos , Masculino , Resultado del Tratamiento
12.
J Child Fam Stud ; 29(7): 1982-1991, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33737799

RESUMEN

OBJECTIVES: Rumination involves a repetitive, passive focus on one's thoughts and feelings and has been hypothesized as a mechanism contributing to multiple psychopathologies. The current investigation explores secondary outcomes from a pilot study to examine whether rumination-focused cognitive behavior therapy (RFCBT) alleviates symptoms of anxiety, increases behavioral activation, or increases global functioning among adolescents with a history of Major Depressive Disorder (MDD). METHODS: Thirty-three adolescents were randomized to receive either RFCBT (n = 17) or assessment only (AO; n = 16) over the course of eight weeks. Mixed effects regression models were used to conduct intent-to-treat (ITT) analyses. RESULTS: The quadratic interaction for group-by-time-by-time was significant for anxiety. Adolescents in the RFCBT group experienced a significant decrease in anxiety across the first six weeks of intervention (F = 7.01, df = 108.49, p = .009). The group-by-time interaction was significant for the behavioral activation outcome (F = 4.28, df = 25.60, p = .049) with youth randomized to RFCBT demonstrating increasing activation compared to AO. Global functioning did not significantly differ between groups (F = .40, df = 1, p > .05). CONCLUSIONS: Preliminary evidence suggests that RFCBT may hold promise as an intervention that alleviates both depressive and anxiety symptoms when comorbid.

14.
J Clin Child Adolesc Psychol ; 38(6): 790-802, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-20183663

RESUMEN

The factor structure of several self-report questionnaires assessing depression-relevant cognitions frequently employed in clinical research was examined in a sample of 390 adolescents (M age = 14.54; 216 girls; 74% Caucasian) with current major depressive disorder enrolled in the Treatment of Adolescents with Depression Study. A four-factor solution resulted, accounting for 65% of the total variance. The factors were labeled (a) Cognitive Distortions and Maladaptive Beliefs, (b) Cognitive Avoidance, (c) Positive Outlook, and (d) Solution-Focused Thinking. Internal consistencies for the factor-based composite scores were .83, .85, .84, and .82, respectively. Girls endorsed more negative cognitions than boys on three of the four factors. Maladaptive cognitions were positively related to severity of depression and predicted treatment response. Taken together, findings indicated that there are four distinct domains of cognitions that are present among adolescents with depression that are tapped by several widely used self-report measures of cognitions.


Asunto(s)
Trastornos del Conocimiento/epidemiología , Trastornos del Conocimiento/terapia , Terapia Cognitivo-Conductual/métodos , Trastorno Depresivo Mayor/diagnóstico , Trastorno Depresivo Mayor/epidemiología , Fluoxetina/uso terapéutico , Inhibidores Selectivos de la Recaptación de Serotonina/uso terapéutico , Adolescente , Niño , Trastornos del Conocimiento/diagnóstico , Cultura , Trastorno Depresivo Mayor/psicología , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Trastornos de la Personalidad/diagnóstico , Trastornos de la Personalidad/epidemiología , Autoimagen , Encuestas y Cuestionarios , Resultado del Tratamiento
15.
J Clin Child Adolesc Psychol ; 38(6): 803-13, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-20183664

RESUMEN

The effect of perfectionism on acute treatment outcomes was explored in a randomized controlled trial of 439 clinically depressed adolescents (12-17 years of age) enrolled in the Treatment for Adolescents with Depression Study (TADS) who received cognitive behavior therapy (CBT), fluoxetine, a combination of CBT and FLX, or pill placebo. Measures included the Children's Depression Rating Scale-Revised, the Suicidal Ideation Questionnaire-Grades 7-9, and the perfectionism subscale from the Dysfunctional Attitudes Scale (DAS). Predictor results indicate that adolescents with higher versus lower DAS perfectionism scores at baseline, regardless of treatment, continued to demonstrate elevated depression scores across the acute treatment period. In the case of suicidality, DAS perfectionism impeded improvement. Treatment outcomes were partially mediated by the change in DAS perfectionism across the 12-week period.


Asunto(s)
Actitud , Terapia Cognitivo-Conductual/métodos , Trastorno Depresivo Mayor/terapia , Personalidad , Encuestas y Cuestionarios , Adolescente , Niño , Trastorno Depresivo Mayor/diagnóstico , Trastorno Depresivo Mayor/psicología , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Femenino , Humanos , Masculino , Valor Predictivo de las Pruebas , Autoimagen , Resultado del Tratamiento
16.
Behav Cogn Psychother ; 37(3): 267-91, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-19368751

RESUMEN

BACKGROUND: Factors that distinguish depressed individuals who become hopeless from those who do not are poorly understood. METHOD: In this study, predictors of hopelessness were examined in a sample of 439 clinically depressed adolescents participating in the Treatment for Adolescents with Depression Study (TADS). The total score of the Beck Hopelessness Scale (BHS) was used to assess hopelessness at baseline. Multiple regression and logistic regression analyses were conducted to evaluate the extent to which variables were associated with hopelessness and determine which cluster of measures best predicted clinically significantly hopelessness. RESULTS: Hopelessness was associated with greater depression severity, poor social problem-solving, cognitive distortions, and family conflict. View of self, view of the world, internal attributional style, need for social approval, positive problem-solving orientation, and family problems consistently emerged as the best predictors of hopelessness in depressed youth. CONCLUSIONS: Cognitive and familial factors predict those depressed youth who have high levels of hopelessness.


Asunto(s)
Terapia Cognitivo-Conductual , Trastorno Depresivo Mayor/psicología , Trastorno Depresivo Mayor/terapia , Motivación , Adolescente , Antidepresivos de Segunda Generación/uso terapéutico , Terapia Combinada , Trastorno Depresivo Mayor/diagnóstico , Conflicto Familiar/psicología , Femenino , Fluoxetina/uso terapéutico , Estudios de Seguimiento , Humanos , Control Interno-Externo , Masculino , Distorsión de la Percepción , Inventario de Personalidad/estadística & datos numéricos , Solución de Problemas , Pronóstico , Psicometría , Autoimagen , Medio Social , Percepción Social
17.
Neuroimage Clin ; 20: 1001-1009, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30321791

RESUMEN

BACKGROUND: Major Depressive Disorder (MDD) is a prevalent, disruptive illness. A majority of those with MDD are at high risk for recurrence and increased risk for morbidity and mortality. This study examined whether multimodal baseline (and retest) Cognitive Control performance and neuroimaging markers (task activation and neural connectivity between key brain nodes) could differentiate between those with and without future recurrence of a major depressive (MD) episode within one year. We hypothesized that performance and neuroimaging measures of Cognitive Control would identify markers that differ between these two groups. METHODS: A prospective cohort study of young adults (ages 18-23) with history (h) of early-onset MDD (N = 60), now remitted, and healthy young adults (N = 49). Baseline Cognitive Control measures of performance, task fMRI and resting state connectivity (and reliability retest 4-12 weeks later) were used to compare those with future recurrence of MDD (N = 21) relative to those without future recurrence of MDD (N = 34 with resilience). The measures tested were (1) Parametric Go/No-Go (PGNG) performance, and task activation for (2) PGNG Correct Rejections, (3) PGNG Commission errors, and (4 & 5), resting state connectivity analyses of Cognitive Control Network to and from subgenual anterior cingulate. RESULTS: Relative to other groups at baseline, the group with MDD Recurrence had less bilateral middle frontal gyrus activation during commission errors. MDD Recurrence exhibited greater connectivity of right middle frontal gyrus to subgenual anterior cingulate (SGAC). SGAC connectivity was also elevated in this group to numerous regions in the Cognitive Control Network. Moderate to strong ICCs were present from test to retest, and highest for rs-fMRI markers. There were modest, significant correlations between task, connectivity and behavioral markers that distinguished between groups. CONCLUSION: Markers of Cognitive Control function could identify those with early course MD who are at risk for depression recurrence. Those at high risk for recurrence would benefit from maintenance or preventative treatments. Future studies could test and validate these markers as potential predictors, accounting for sample selection and bias in feature detection.


Asunto(s)
Cognición/fisiología , Depresión/fisiopatología , Trastorno Depresivo Mayor/fisiopatología , Neuroimagen , Adolescente , Adulto , Encéfalo/patología , Encéfalo/fisiopatología , Mapeo Encefálico , Femenino , Humanos , Masculino , Vías Nerviosas/fisiopatología , Neuroimagen/métodos , Reproducibilidad de los Resultados , Adulto Joven
18.
Front Psychiatry ; 9: 244, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29937738

RESUMEN

There is substantial variability across studies of default mode network (DMN) connectivity in major depressive disorder, and reliability and time-invariance are not reported. This study evaluates whether DMN dysconnectivity in remitted depression (rMDD) is reliable over time and symptom-independent, and explores convergent relationships with cognitive features of depression. A longitudinal study was conducted with 82 young adults free of psychotropic medications (47 rMDD, 35 healthy controls) who completed clinical structured interviews, neuropsychological assessments, and 2 resting-state fMRI scans across 2 study sites. Functional connectivity analyses from bilateral posterior cingulate and anterior hippocampal formation seeds in DMN were conducted at both time points within a repeated-measures analysis of variance to compare groups and evaluate reliability of group-level connectivity findings. Eleven hyper- (from posterior cingulate) and 6 hypo- (from hippocampal formation) connectivity clusters in rMDD were obtained with moderate to adequate reliability in all but one cluster (ICC's range = 0.50 to 0.76 for 16 of 17). The significant clusters were reduced with a principle component analysis (5 components obtained) to explore these connectivity components, and were then correlated with cognitive features (rumination, cognitive control, learning and memory, and explicit emotion identification). At the exploratory level, for convergent validity, components consisting of posterior cingulate with cognitive control network hyperconnectivity in rMDD were related to cognitive control (inverse) and rumination (positive). Components consisting of anterior hippocampal formation with social emotional network and DMN hypoconnectivity were related to memory (inverse) and happy emotion identification (positive). Thus, time-invariant DMN connectivity differences exist early in the lifespan course of depression and are reliable. The nuanced results suggest a ventral within-network hypoconnectivity associated with poor memory and a dorsal cross-network hyperconnectivity linked to poorer cognitive control and elevated rumination. Study of early course remitted depression with attention to reliability and symptom independence could lead to more readily translatable clinical assessment tools for biomarkers.

19.
J Am Acad Child Adolesc Psychiatry ; 46(11): 1403-13, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-18049290

RESUMEN

OBJECTIVE: To explicate differences between early and recent meta-analytic estimates of the effects of cognitive-behavioral therapy (CBT) for adolescent depression. METHOD: Meta-analytic procedures were used to investigate whether methodological characteristics moderated mean effect sizes among 11 randomized, controlled trials of CBT focusing on adolescents meeting diagnostic criteria for unipolar depression. RESULTS: Cumulative meta-analyses indicated that effects of CBT have decreased from large effects in early trials, and confidence intervals have become narrower. Effect sizes were significantly smaller among studies that used intent-to-treat analytic strategies, compared CBT to active treatments, were conducted in clinical settings, and featured greater methodological rigor based on CONSORT (Consolidated Standards of Reporting Trials) criteria. The mean posttreatment effect size of 0.53 was statistically significant. CONCLUSIONS: Differences in estimates of the efficacy of CBT for depressed adolescents may stem from methodological differences between early and more recent investigations. Overall, results support the effectiveness of CBT for the treatment of adolescent depression.


Asunto(s)
Terapia Cognitivo-Conductual/métodos , Trastorno Depresivo Mayor/terapia , Adolescente , Humanos , Resultado del Tratamiento
20.
Psychiatry Res Neuroimaging ; 262: 32-38, 2017 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-28226305

RESUMEN

Maternal rumination is a cognitive-affective trait that could influence offspring's ability to respond flexibly to positive and negative events, depending on the quality of maternal problem-solving behaviors with which rumination co-occurs. As reward circuitry is sensitive to stressors and related to risk for depression, reward circuitry is an appropriate candidate mechanism for how maternal characteristics influence offspring. We evaluated the independent and combined effect of maternal rumination and disengagement on adolescent neural response to reward win and loss. Participants were 122 boys and their mothers from low-income, urban backgrounds followed prospectively in a longitudinal study. The combination of high maternal rumination at child age 6 and high maternal disengagement during problem-solving at child age 10-12 was associated with lower anterior cingulate response to winning reward at age 20, but unrelated to neural response to losing reward. Lower anterior cingulate response to winning reward was associated with fewer anxiety symptoms during late adulthood. Findings suggest that maternal rumination occurring within the context of maternal disengagement during challenging experiences may be related to offspring blunted engagement during positive events. Helping highly ruminative mothers to restructure repetitive negative thoughts and to develop context-appropriate problem-solving behaviors may be important for promoting offspring affective development.


Asunto(s)
Encéfalo/diagnóstico por imagen , Conducta Materna/psicología , Relaciones Madre-Hijo , Recompensa , Pensamiento , Niño , Desarrollo Infantil/fisiología , Depresión/psicología , Femenino , Humanos , Estudios Longitudinales , Imagen por Resonancia Magnética , Masculino , Madres/psicología , Factores de Riesgo , Adulto Joven
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