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OBJECTIVES: Individuals with major depressive disorder (MDD) demonstrate poorer learning and memory skills relative to never-depressed comparisons (NDC). Previous studies report decreased volume and disrupted function of frontal lobes and hippocampi in MDD during memory challenge. However, it has been difficult to dissociate contributions of short-term memory and executive functioning to memory difficulties from those that might be attributable to long-term memory deficits. METHODS: Adult males (MDD, n=19; NDC, n=22) and females (MDD, n=23; NDC, n=19) performed the Semantic List Learning Task (SLLT) during functional magnetic resonance imaging. The SLLT Encoding condition consists of 15 lists, each containing 14 words. After each list, a Distractor condition occurs, followed by cued Silent Rehearsal instructions. Post-scan recall and recognition were collected. Groups were compared using block (Encoding-Silent Rehearsal) and event-related (Words Recalled) models. RESULTS: MDD displayed lower recall relative to NDC. NDC displayed greater activation in several temporal, frontal, and parietal regions, for both Encoding-Silent Rehearsal and the Words Recalled analyses. Groups also differed in activation patterns in regions of the Papez circuit in planned analyses. The majority of activation differences were not related to performance, presence of medications, presence of comorbid anxiety disorder, or decreased gray matter volume in MDD. CONCLUSIONS: Adults with MDD exhibit memory difficulties during a task designed to reduce the contribution of individual variability from short-term memory and executive functioning processes, parallel with decreased activation in memory and executive functioning circuits. Ecologically valid long-term memory tasks are imperative for uncovering neural correlates of memory performance deficits in adults with MDD.
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Aprendizagem por Associação/fisiologia , Córtex Cerebral/diagnóstico por imagem , Sinais (Psicologia) , Transtorno Depressivo Maior/complicações , Transtorno Depressivo Maior/patologia , Deficiências da Aprendizagem/etiologia , Sistema Límbico/diagnóstico por imagem , Semântica , Adolescente , Adulto , Idoso , Análise de Variância , Mapeamento Encefálico , Transtorno Depressivo Maior/diagnóstico por imagem , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Deficiências da Aprendizagem/diagnóstico por imagem , Imageamento por Ressonância Magnética , Masculino , Transtornos da Memória/diagnóstico por imagem , Transtornos da Memória/etiologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Adulto JovemRESUMO
BACKGROUND: Major Depressive Disorder (MDD) and anxiety disorders often co-occur, with poorer treatment response and long-term outcomes. However, little is known about the shared and distinct neural mechanisms of comorbid MDD and anxiety (MDD+Anx). This study examined how MDD and MDD+Anx differentially impact cognitive control. METHODS: Eighteen MDD, 29 MDD+Anx, and 54 healthy controls (HC) completed the Parametric Go/No-Go (PGNG) during fMRI, including Target, Commission, and Rejection trials. RESULTS: MDD+Anx had more activation in the anterior dorsolateral prefrontal cortex, hippocampus, and caudate during Rejections, and inferior parietal lobule during correct Targets than MDD and HC. During Rejections HC had greater activation in a number of cognitive control regions compared to MDD; in the posterior cingulate compared to MDD+Anx; and in the fusiform gyrus compared to all MDD. During Commissions HC had greater activation in the right inferior frontal gyrus than all MDD. MDD had more activation in the mid-cingulate, inferior parietal lobule, and superior temporal gyrus than MDD+Anx during Commissions. CONCLUSIONS: Despite similar performance, MDD and MDD+Anx showed distinct differences in neural mechanisms of cognitive control in relation to each other, as well as some shared differences in relation to HC. The results were consistent with our hypothesis of hypervigilance in MDD+Anx within the cognitive control network, but inconsistent with our hypothesis that there would be greater engagement of salience and emotion network regions. Comorbidity of depression and anxiety may cause increased heterogeneity in study samples, requiring further specificity in detection and measurement of intermediate phenotypes and treatment Targets.
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Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/fisiopatologia , Encéfalo/fisiopatologia , Cognição/fisiologia , Transtorno Depressivo Maior/diagnóstico , Transtorno Depressivo Maior/fisiopatologia , Rede Nervosa/fisiopatologia , Adulto , Transtornos de Ansiedade/psicologia , Nível de Alerta/fisiologia , Mapeamento Encefálico , Comorbidade , Transtorno Depressivo Maior/psicologia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Testes NeuropsicológicosRESUMO
Major depressive disorder and bipolar disorder share symptoms that may reflect core mood disorder features. This has led to the pursuit of intermediate phenotypes and a dimensional approach to understand neurobiological disruptions in mood disorders. Executive dysfunction, including cognitive control, may represent a promising intermediate phenotype across major depressive disorder and bipolar disorder. This study examined dimensions of cognitive control in women with major depressive disorder or bipolar disorder in comparison to healthy control subjects using two separate, consecutive experiments. For Experiment 1, participants completed a behavioural cognitive control task (healthy controls = 150, major depressive disorder = 260, bipolar disorder = 202; age range 17-84 years). A sample of those participants (healthy controls = 17, major depressive disorder = 19, and bipolar disorder = 16) completed a similar cognitive control task in an event-related design functional magnetic resonance imaging protocol for Experiment 2. Results for Experiment 1 showed greater impairments on the cognitive control task in patients with mood disorders relative to healthy controls (P < 0.001), with more of those in the mood disorder group falling into the 'impaired' range when using clinical cut-offs (<5th percentile). Experiment 2 revealed only a few areas of shared activation differences in mood disorder greater than healthy controls. Activation analyses using performance as a regressor, irrespective of diagnosis, revealed within and extra-network areas that were more active in poor performers. In summary, performance and activation during cognitive control tasks may represent an intermediate phenotype for mood disorders. However, cognitive control dysfunction is not uniform across women with mood disorders, and activation is linked to performance more so than disease. These findings support subtype and dimensional approaches to understanding risk and expression of mood disorders and are a promising area of inquiry, in line with the Research Domain Criteria initiative of NIMH.
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Transtorno Bipolar/fisiopatologia , Encéfalo/patologia , Transtornos Cognitivos/fisiopatologia , Cognição/fisiologia , Transtorno Depressivo Maior/fisiopatologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Transtorno Bipolar/diagnóstico , Encéfalo/fisiopatologia , Transtornos Cognitivos/diagnóstico , Transtorno Depressivo Maior/diagnóstico , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Humanos , Pessoa de Meia-Idade , Testes Neuropsicológicos , Adulto JovemRESUMO
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.
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OBJECTIVE: Bipolar disorder (BPD) and normal aging are known to impact cognitive skills and health-related quality of life (HRQOL). This study investigated how aging and disease interact in predicting cognitive and psychosocial outcomes. METHODS: Eight cognitive and ten subjective HRQOL domain ratings were measured. Subjects included 80 young (18-29 years) and late middle-aged (50-65 years) BPD patients in the euthymic phase and 70 age-equivalent healthy comparison participants. RESULTS: An age X disease interaction was detected in three domains of cognitive functioning that reflect emotion processing, processing speed, and executive functioning skills, with BPD patients in the older group performing most poorly. There was a double burden of aging and disease on reported ability to perform physical tasks. However, regardless of age, disease status was associated with lower ratings of HRQOL in the psychosocial/affective sphere and the majority of cognitive domains. Post hoc analyses revealed that number of years ill was positively associated with select HRQOL ratings in older, but not younger BPD adults. CONCLUSIONS: These findings may stimulate future longitudinal study of cognition and quality of life in BPD patients across the life span, focusing on additive and interactive effects of aging and disease burden, which could culminate in developing more effective treatment and rehabilitation strategies for this traditionally challenging to treat population.
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Envelhecimento , Transtorno Bipolar , Cognição/fisiologia , Qualidade de Vida , Adolescente , Adulto , Idoso , Envelhecimento/fisiologia , Envelhecimento/psicologia , Análise de Variância , Transtorno Bipolar/fisiopatologia , Transtorno Bipolar/psicologia , Estudos de Casos e Controles , Efeitos Psicossociais da Doença , Função Executiva/fisiologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Adulto JovemRESUMO
OBJECTIVE: This study examined the influence of illness phase on executive functioning performance using factor-derived cognitive scores in a cross-sectional design. METHODS: Healthy control (HC) subjects (n = 57), and euthymic (E-BD) (n = 117), depressed (D-BD) (n = 73), and hypomanic/mixed (HM/M-BD) (n = 26) patients with bipolar disorder (BD) were evaluated using executive functioning measures (Wisconsin Card Sorting Test, Trail Making Test-Parts A and B, Verbal Fluency, Parametric Go/No-Go, Stroop, and Digit Symbol) comprising Conceptual Reasoning and Set-Shifting (CRSS), Processing Speed with Interference Resolution (PSIR), Verbal Fluency and Processing Speed (VFPS), and Inhibitory Control (IC) factor scores. RESULTS: Two of the four executive functioning factors were significantly different between groups based upon phase of illness. The HM/M group was significantly worse than both of the other BD groups and the HC group in IC. The VFPS factor was sensitive to the active phase of BD, with the HM/M-BD and D-BD groups worse than HC. Extending our prior work, the PSIR factor, and now the CRSS factor were significantly worse in BD relative to HC, irrespective of phase of illness. CONCLUSIONS: Phase of illness had differential cognitive profiles in executive functioning factors, even after considering and excluding the impact of clinical features, illness characteristics, medications, and demographics. Consolidating executive functioning tasks into reliable factor scores provides unique information to measure and define cognitive deficiencies throughout phases of BD, and to measure intermediate phenotypes in BD, and may aid in tracking and clarifying treatment focus.
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Transtorno Bipolar/fisiopatologia , Transtornos Cognitivos/fisiopatologia , Função Executiva , Adulto , Transtorno Bipolar/complicações , Estudos de Casos e Controles , Cognição , Transtornos Cognitivos/etiologia , Estudos Transversais , Progressão da Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Teste de Stroop , Fatores de Tempo , Teste de Sequência AlfanuméricaRESUMO
Video telehealth (VT) technology has increased mental health treatment access for veterans. Although veterans report high levels of satisfaction with VT, age disparities remain. Older adults in the general population face several barriers to using new technology, reflecting a "digital divide" between age cohorts. This trend continued during the COVID-19 pandemic, as older veterans were less likely to use VT-and more likely to use the telephone-for mental health visits than younger veterans. Although VT use has grown considerably during the pandemic, few studies have investigated older veterans' VT use relative to telephone services. Older veterans (aged 65 +) who completed at least one telephone or VT visit in an outpatient geriatric mental health clinic during the first 6 months of COVID-19 received a telehealth satisfaction questionnaire via U.S. mail. While respondents (N = 66) reported moderate levels of satisfaction with VT and telephone appointments, there was less interest in using telehealth exclusively postpandemic. Fewer telephone users reported having access to email and internet and greater barriers to using VT. Veteran rurality was not associated with access to internet or email and did not affect telehealth ratings. Analyses of treatment engagement showed that the rate of missed appointments did not change during COVID-19. Post hoc qualitative analysis of open-ended comments revealed themes of barriers and needs, as well as positive and negative telehealth experiences that were consistent with quantitative findings. Despite experiencing barriers to using VT, older veterans identified potential benefits and solutions to enhance participation across the older adult population. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Recent theories posit that emotion mindsets (i.e., the extent to which individuals believe emotions are malleable or fixed) play a crucial role in experiences of emotion and influence emotion regulation (ER) processes. Drawing from mindset theory, this study examined the hypothesis that fixed emotion mindsets (FEMs) would predict depressive symptoms via compromised ER competence in adolescence, a period when many first episodes of depression occur. Results supported these hypotheses across two studies assessing participants in midadolescence (ages 14-18; M age = 16.17) and late adolescence (ages 18-21; M age = 18.52). Using a comprehensive approach to assessing ER, results demonstrated that FEMs were associated with less voluntary engagement and more disengagement and emotion dysregulation. In turn, higher voluntary engagement was associated with lower depressive symptoms, whereas higher disengagement and emotion dysregulation were associated with higher depressive symptoms. These findings highlight that one understudied pathway from FEMs to depressive symptoms may be the manner in which individuals respond to their emotions, implicating emotion mindsets as one target for efforts to improve clinical outcomes during adolescence. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Regulação Emocional , Adolescente , Adulto , Depressão/psicologia , Emoções/fisiologia , Humanos , Adulto JovemRESUMO
We used a maximum-likelihood-based model selection approach to investigate what aspects of affective traits influence flanker interference in a nonaffective task. A total of 153 undergraduates completed measures of anhedonic depression, anxious arousal, anxious apprehension, and a modified flanker task with two levels of perceptual load. For central foils, the most parsimonious model included load, depression, and anxious arousal. Participants scoring low on the depression and anxious arousal scales exhibited a typical perceptual load effect, with larger interference effects observed under low perceptual load compared with high perceptual load conditions. Increased depression symptoms were associated with a reduced perceptual load effect. However, the load effect reemerged in individuals who scored high on both depression and anxious arousal scales, but to a lesser extent than those scoring low on both. This pattern of results underscores the importance of studying co-occurring affective traits and their interactions in the same sample. For peripherally presented foils, the model that only included load as a factor was more parsimonious than any of the models incorporating affective traits. These findings suggest avenues for future research and highlight the role of diverse affective symptoms on various aspects of nonemotional attentional processing.
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Ansiedade/psicologia , Depressão/psicologia , Estimulação Luminosa/métodos , Tempo de Reação/fisiologia , Adolescente , Adulto , Nível de Alerta/fisiologia , Atenção/fisiologia , Feminino , Humanos , Funções Verossimilhança , Masculino , Distribuição Aleatória , Autorrelato , Adulto JovemRESUMO
Trait markers, or intermediate phenotypes linking different units of analysis (self-report, performance) from the Research Domain Criteria (RDoC) matrix across populations is a necessary step in identifying at-risk individuals. In the current study, 150 healthy controls (HC) and 456 individuals with bipolar disorder (BD) Type I or II, NOS (not otherwise specified) or Schizoaffective BD completed self-report neuropsychological tests of inhibitory control (IC) and executive functioning. Bifactor analyses were used to examine the factor structure of these measures and to evaluate for invariance across groups. Bifactor analyses found modest convergence of items from neuropsychological tests and self-report measures of IC among HC and BD. The factor scores showed evidence of a general IC construct (i.e., subdomain) across measures. Importantly, invariance testing indicated that the same construct was measured equally well across groups. Groups differed on the general factor for three of the four scales. Convergence on a general IC factor and invariance across diagnosis supports the use of combined dimensional measures to identify clinical risk and highlights how prospective RDoC studies might integrate units of analysis.
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Transtorno Bipolar , Transtorno Bipolar/diagnóstico , Função Executiva , Humanos , Testes Neuropsicológicos , Estudos Prospectivos , AutorrelatoRESUMO
Reward anticipation dysfunction is associated with major depressive disorder (MDD), but is not universally observed in individuals with MDD. Reward anticipation deficits have also been linked to childhood adversity (CA) and approach/avoidance traits. The present study evaluated whether severity of CA (as measured by the Childhood Trauma Questionnaire) and approach/avoidance traits predict individual differences in blood oxygen level dependent (BOLD) response to reward anticipation beyond MDD diagnosis alone. Participants were individuals with MDD (nâ¯=â¯23) and healthy controls (nâ¯=â¯27). Multiple regression was conducted using CTQ scores, trait approach/avoidance scores, and diagnosis to predict activation during reward anticipation in a monetary incentive delay fMRI task. Across groups, higher trait reward responsiveness predicted increased activation in the hippocampus, cingulate cortex, and medial frontal gyrus. Greater CTQ scores predicted increased reward network activation. Overall, CTQ and reward responsiveness scores predicted more variance in reward anticipation activation than diagnosis. These findings suggest that clinicians should assess history of childhood adversity and trait reward responsiveness when treating individuals with MDD.
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Adultos Sobreviventes de Eventos Adversos na Infância/psicologia , Depressão/psicologia , Motivação/fisiologia , Recompensa , Adulto , Criança , Feminino , Giro do Cíngulo/diagnóstico por imagem , Hipocampo/diagnóstico por imagem , Humanos , Individualidade , Imageamento por Ressonância Magnética , Masculino , Análise Multivariada , Córtex Pré-Frontal/diagnóstico por imagem , Análise de Regressão , Adulto JovemRESUMO
OBJECTIVE: Depression and bipolar disorder (negative mood disorders, NMD) are associated with dysregulated hypothalamic-pituitary-adrenal (HPA)-axis function and disrupted emotion processing. The neural networks involved in attenuation of HPA-axis reactivity overlap with the circuitry involved in perception and modulation of emotion; however, direct links between these systems are understudied. This study investigated whether cortisol activity prior to undergoing fMRI was related to neural processing of emotional information in participants with NMD. METHODS: Forty-one adults (Mage=40.33, SD=15.57) with major depression (n=29) or bipolar disorder (n=12) and 23 healthy control comparisons (Mage=36.43, SD=17.33) provided salivary cortisol samples prior to completing a facial emotion perception test during 3-Tesla fMRI. RESULTS: Overall, pre-scan cortisol level was positively associated with greater engagement of the dorsal anterior cingulate (dACC), inferior parietal lobule, insula, putamen, precuneus, middle and medial frontal and postcentral gyri, posterior cingulate, and inferior temporal gyrus during emotion processing of all faces. NMD status moderated this effect; in NMD participants' pre-scan cortisol was associated with attenuated activation of the insula, postcentral gyrus, precuneus, and putamen for fearful faces and the medial frontal gyrus for angry faces relative to HCs. Cortisol-related attenuation of activation among NMD participants was also observed for facial identification in the dACC, putamen, middle temporal gyrus, precuneus, and caudate. CONCLUSIONS: Across all participants, cortisol was associated with greater activation in several regions involved in the perception and control of emotion. However, cortisol responsivity was associated with hypoactivation of several of these regions in the NMD group, suggesting that HPA-axis activity may selectively interfere with the potentially adaptive recruitment of circuits supporting emotion perception, processing and/or regulation in mood disorders.
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Transtorno Bipolar/fisiopatologia , Córtex Cerebral/fisiopatologia , Transtorno Depressivo Maior/fisiopatologia , Emoções/fisiologia , Expressão Facial , Reconhecimento Facial/fisiologia , Hidrocortisona/metabolismo , Neostriado/fisiopatologia , Percepção Social , Adulto , Transtorno Bipolar/diagnóstico por imagem , Transtorno Bipolar/metabolismo , Córtex Cerebral/diagnóstico por imagem , Transtorno Depressivo Maior/diagnóstico por imagem , Transtorno Depressivo Maior/metabolismo , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neostriado/diagnóstico por imagemRESUMO
Poor cognitive control (CC) is common among older individuals with major depressive disorder (OMDD). At the same time, studies of CC in OMDD with fMRI are relatively limited and often have small samples. The present study was conducted to further examine poor CC in OMDD with early onset depression, as well as to investigate the interactive effects of MDD and aging on cognitive control. Twenty OMDD, 17 older never-depressed comparisons (ONDC), 16 younger adults with MDD (YMDD), and 18 younger never-depressed comparisons (YNDC) participated. All participants completed the Go level of the Parametric Go/No-Go Test, which requires sustained attention and inhibitory control while undergoing functional MRI (fMRI). YNDC were faster in reaction times (RTs) to go targets relative to the other 3 groups, and the YMDD group was faster than the OMDD group. fMRI effects of both age and diagnosis were present, with greater activation in MDD, and in aging. Additionally, the interaction of age and MDD was also significant, such that OMDD exhibited greater recruitment of fronto-subcortical regions relative to older comparisons. These results are consistent with prior research reporting that OMDD recruit more fronto-striatal regions in order to perform at the same level as their never-depressed peers, here on a task of sustained attention and inhibitory control. There may be an interaction of cognitive aging and depression to create a double burden on the CC network in OMDD, including possible fronto-striatal compensation during CC that is unique to OMDD, as younger MDD individuals do not show this pattern.
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Envelhecimento/psicologia , Cognição , Transtorno Depressivo Maior/psicologia , Adolescente , Adulto , Idade de Início , Idoso , Atenção/fisiologia , Mapeamento Encefálico , Estudos de Casos e Controles , Cognição/fisiologia , Depressão/psicologia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Tempo de Reação , Adulto JovemRESUMO
Anhedonia, the diminished anticipation and pursuit of reward, is a core symptom of major depressive disorder (MDD). Trait behavioral activation (BA), as a proxy for anhedonia, and behavioral inhibition (BI) may moderate the relationship between MDD and reward-seeking. The present studies probed for reward learning deficits, potentially due to aberrant BA and/or BI, in active or remitted MDD individuals compared to healthy controls (HC). Active MDD (Study 1) and remitted MDD (Study 2) participants completed the modified monetary incentive delay task (mMIDT), a behavioral reward-seeking task whose response window parameters were individually titrated to theoretically elicit equivalent accuracy between groups. Participants completed the BI Scale and BA Reward-Responsiveness and Drive Scales. Despite individual titration, active MDD participants won significantly less money than HCs. Higher Reward-Responsiveness scores predicted more won; Drive and BI were not predictive. Remitted MDD participants' performance did not differ from controls', and trait BA and BI measures did not predict r-MDD performance. These results suggest that diminished reward-responsiveness may contribute to decreased motivation and reward pursuit during active MDD, but that reward learning is intact in remission. Understanding individual reward processing deficits in MDD may inform personalized intervention addressing anhedonia and motivation deficits in select MDD patients.
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Anedonia , Transtorno Depressivo Maior/psicologia , Aprendizagem , Personalidade , Recompensa , Adulto , Anedonia/fisiologia , Transtorno Depressivo Maior/diagnóstico , Feminino , Humanos , Aprendizagem/fisiologia , Masculino , Pessoa de Meia-Idade , Transtornos do Humor/diagnóstico , Transtornos do Humor/psicologia , Motivação , Personalidade/fisiologia , Valor Preditivo dos Testes , Tempo de Reação/fisiologia , Adulto JovemRESUMO
Functional recovery, including return to work, in Bipolar Disorder (BD) lags behind clinical recovery and may be incomplete when acute mood symptoms have subsided. We examined impact of cognition on work status and underemployment in a sample of 156 Euthymic-BD and 143 controls (HC) who were divided into working/not working groups. Clinical, health, social support, and personality data were collected, and eight cognitive factors were derived from a battery of neuropsychological tests. The HC groups outperformed the BD groups on seven of eight cognitive factors. The working-BD group outperformed the not working-BD group on 4 cognitive factors composed of tasks of emotion processing and executive functioning including processing speed and set shifting. Emotion processing and executive tasks were predictive of BD unemployment, after accounting for number of mood episodes. Four cognitive factors accounted for a significant amount of the variance in work status among the BD participants. Results indicate that patients with BD who are unemployed/unable to work exhibit greater difficulties processing emotional information and on executive tasks that comprise a set shifting or interference resolution component as compared to those who are employed, independent of other factors. These cognitive and affective factors are suggested as targets for treatment and/or accommodations.
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Transtorno Bipolar/psicologia , Cognição , Emoções , Emprego , Função Executiva , Adulto , Afeto , Estudos de Casos e Controles , Transtornos Cognitivos/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , PercepçãoRESUMO
Measures of cognitive dysfunction in Bipolar Disorder (BD) have identified state and trait dependent metrics. An influence of substance abuse (SUD) on BD has been suggested. This study investigates potential differential, additive, or interactive cognitive dysfunction in bipolar patients with or without a history of SUD. Two hundred fifty-six individuals with BD, 98 without SUD and 158 with SUD, and 97 Healthy Controls (HC) completed diagnostic interviews, neuropsychological testing, and symptom severity scales. The BD groups exhibited poorer performance than the HC group on most cognitive factors. The BD with SUD exhibited significantly poorer performance than BD without SUD in visual memory and conceptual reasoning/set-shifting. In addition, a significant interaction effect between substance use and depressive symptoms was found for auditory memory and emotion processing. BD patients with a history of SUD demonstrated worse visual memory and conceptual reasoning skills above and beyond the dysfunction observed in these domains among individuals with BD without SUD, suggesting greater impact on integrative, gestalt-driven processing domains. Future research might address longitudinal outcome as a function of BD, SUD, and combined BD/SUD to evaluate neural systems involved in risk for, and effects of, these illnesses.
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Transtorno Bipolar/psicologia , Função Executiva/fisiologia , Transtornos da Memória/psicologia , Memória/fisiologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adulto , Transtorno Bipolar/complicações , Diagnóstico Duplo (Psiquiatria) , Feminino , Humanos , Masculino , Transtornos da Memória/complicações , Pessoa de Meia-Idade , Testes Neuropsicológicos , Transtornos Relacionados ao Uso de Substâncias/complicaçõesRESUMO
Weight gain is an important concern that impacts on breast cancer outcomes and general health in survivorship. This randomized, pilot study evaluated whether or not women could comply with a weight control program that is initiated at the beginning of chemotherapy for breast cancer. The program sought to prevent weight gain using a low-fat, high fruit-vegetable diet combined with moderate physical activity. The intervention was implemented using a telephone counseling approach that blended motivational interviewing with social cognitive theory. A total of 40 women were recruited over 9 months at the University of Michigan Comprehensive Cancer Center. This represents 55% of eligible women referred to the study and indicates that interest in a healthy lifestyle program at the initiation of chemotherapy for breast cancer was high. Subjects who dropped out had significantly lower fruit and vegetable intakes and lower blood carotenoids at baseline than subjects who completed the study. Statistically significant beneficial effects were observed on fruit and vegetable intakes, physical activity and breast cancer-specific well-being by the intervention. Mean body fat from dual energy X-ray absorptiometry increased in the written materials arm and decreased in the intervention arm. Of the enrolled women, 75% completed 12 months on study and satisfaction with study participation was high. These data indicate that lifestyle intervention during breast cancer treatment is feasible during treatment with chemotherapy for breast cancer and benefits women in several domains.