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1.
Cogn Affect Behav Neurosci ; 23(6): 1581-1597, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37880570

RESUMEN

Mindfulness can produce neuroplastic changes that support adaptive cognitive and emotional functioning. Recently interest in single-exercise mindfulness instruction has grown considerably because of the advent of mobile health technology. Accordingly, the current study sought to extend neural models of mindfulness by investigating transient states of mindfulness during single-dose exposure to focused attention meditation. Specifically, we examined the ability of a brief mindfulness induction to attenuate intimate partner aggression via adaptive changes to intrinsic functional brain networks. We employed a dual-regression approach to examine a large-scale functional network organization in 50 intimate partner dyads (total n = 100) while they received either mindfulness (n = 50) or relaxation (n = 50) instruction. Mindfulness instruction reduced coherence within the Default Mode Network and increased functional connectivity within the Frontoparietal Control and Salience Networks. Additionally, mindfulness decoupled primary visual and attention-linked networks. Yet, this induction was unable to elicit changes in subsequent intimate partner aggression, and such aggression was broadly unassociated with any of our network indices. These findings suggest that minimal doses of focused attention-based mindfulness can promote transient changes in large-scale brain networks that have uncertain implications for aggressive behavior.


Asunto(s)
Meditación , Atención Plena , Humanos , Encéfalo , Mapeo Encefálico , Meditación/psicología , Agresión , Imagen por Resonancia Magnética
2.
Psychosom Med ; 2023 Nov 17.
Artículo en Inglés | MEDLINE | ID: mdl-37982547

RESUMEN

OBJECTIVE: Aging is associated with increased pro-inflammatory gene expression and systemic inflammation, and psychosocial stress may accelerate these changes. Mindfulness interventions show promise for reducing psychosocial stress and extending healthspan. Inflammatory pathways may play a role. In a sample of lonely older adults, we tested whether mindfulness training reduces proinflammatory gene expression and protein markers of systemic inflammation. METHODS: Lonely older adults (65-85 years; N = 190) were randomly assigned to an 8-week Mindfulness-Based Stress Reduction (MBSR) or matched Health Enhancement Program (HEP). Blood was drawn pre- and post-intervention and at 3-month follow-up. In peripheral blood mononuclear cells (PBMCs), RNA profiling was used to assess transcriptional regulation by pro-inflammatory NF-kB as well as ß-adrenergic CREB, antiviral IRF, and glucocorticoid receptor (GR) transcription factors. Plasma was assayed for proinflammatory markers IL-6 and CRP. Analyses tested time (pre, post, follow-up) by condition (MBSR versus HEP) effects. RESULTS: MBSR reduced NF-kB (d = .17, p = .028) but did not alter CREB (d = .10, p = .20), IRF (d = .13, p = .086), or GR activity (d = .14, p = .063) relative to HEP over time. Contrary to predictions, there were no time × condition effects of MBSR compared to HEP on reducing circulating IL-6 or CRP. CONCLUSIONS: In lonely older adults, MBSR reduced cellular pro-inflammatory gene regulation in ways that would predict reduced disease risk. However, no similar effect was observed for circulating protein markers of inflammation. These results provide specificity about how mindfulness interventions may impact distinct inflammatory markers among aging adults in ways that may have important implications for healthspan. TRIAL REGISTRATION: Clinical Trials identifier NCT02888600.

3.
Brain Behav Immun ; 104: 6-15, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35550854

RESUMEN

Loneliness is a potent psychosocial stressor that predicts poor health and mortality among older adults, possibly in part by accelerating age-related declines in immunocompetence. Mindfulness interventions have shown promise for reducing loneliness and improving markers of physical health. In a sample of lonely older adults, this two-arm parallel trial tested whether mindfulness training enhances stimulated interleukin-6 (IL-6) production, a measure of innate immune responsivity. Lonely older adults (65-85 years; N = 190) were randomized to an 8-week Mindfulness-Based Stress Reduction (MBSR) or control Health Enhancement Program (HEP) intervention. Lipopolysaccharide (LPS)-stimulated production of IL-6 was measured in vitro by blinded outcome assessors at pre-intervention, post-intervention, and 3-month follow-up. Mixed-effects linear models tested time (pre, post, follow-up) by condition (MBSR vs. HEP) effects. As predicted, a significant time × condition effect on stimulated IL-6 production was observed across pre, post, and follow-up timepoints. Significant MBSR vs. HEP differences emerged from pre- to post-intervention (p =.009, d = 0.38) and from pre-intervention to 3-month follow-up (p =.017, d = 0.35), with larger increases in IL-6 production following MBSR compared to HEP. No study-related adverse events were reported. Results show that mindfulness training may be effective for boosting innate immunocompetence among lonely older adults. Given that immunocompetence tends to decline with age, mindfulness training may help to counteract the effects of aging and psychosocial stress on infection risk and recovery from injury.


Asunto(s)
Atención Plena , Expresión Génica , Interleucina-6 , Soledad , Atención Plena/métodos , Estrés Psicológico/terapia , Estrés Psicológico/psicología , Resultado del Tratamiento , Humanos , Anciano , Anciano de 80 o más Años
4.
Proc Natl Acad Sci U S A ; 116(9): 3488-3493, 2019 02 26.
Artículo en Inglés | MEDLINE | ID: mdl-30808743

RESUMEN

Loneliness and social isolation are a growing public health concern, yet there are few evidence-based interventions for mitigating these social risk factors. Accumulating evidence suggests that mindfulness interventions can improve social-relationship processes. However, the active ingredients of mindfulness training underlying these improvements are unclear. Developing mindfulness-specific skills-namely, (i) monitoring present-moment experiences with (ii) an orientation of acceptance-may change the way people perceive and relate toward others. We predicted that developing openness and acceptance toward present experiences is critical for reducing loneliness and increasing social contact and that removing acceptance-skills training from a mindfulness intervention would eliminate these benefits. In this dismantling trial, 153 community adults were randomly assigned to a 14-lesson smartphone-based intervention: (i) training in both monitoring and acceptance (Monitor+Accept), (ii) training in monitoring only (Monitor Only), or (iii) active control training. For 3 d before and after the intervention, ambulatory assessments were used to measure loneliness and social contact in daily life. Consistent with predictions, Monitor+Accept training reduced daily-life loneliness by 22% (d = 0.44, P = 0.0001) and increased social contact by two more interactions each day (d = 0.47, P = 0.001) and one more person each day (d = 0.39, P = 0.004), compared with both Monitor Only and control trainings. These findings describe a behavioral therapeutic target for improving social-relationship functioning; by fostering equanimity with feelings of loneliness and social disconnect, acceptance-skills training may allow loneliness to dissipate and encourage greater engagement with others in daily life.


Asunto(s)
Soledad/psicología , Atención Plena , Aislamiento Social/psicología , Estrés Psicológico , Adulto , Emociones , Femenino , Humanos , Masculino , Meditación/psicología , Salud Pública , Teléfono Inteligente , Conducta Social , Adulto Joven
5.
Psychosom Med ; 83(6): 641-649, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33657083

RESUMEN

OBJECTIVE: Mindfulness interventions have been effective for improving a range of health outcomes; however, pathways underlying these effects remain unclear. Inflammatory processes may play a role, possibly through increased resistance of immune cells to the anti-inflammatory effects of glucocorticoids (i.e., glucocorticoid resistance, or GCR). Here, we conducted an initial examination of whether mindfulness training mitigates GCR among lonely older adults. METHODS: Lonely older adults (65-85 years; n = 190) were randomly assigned to an 8-week Mindfulness-Based Stress Reduction (MBSR) or a matched Health Enhancement Program (HEP). Whole blood drawn before and after the intervention and at 3-month follow-up was incubated with endotoxin and varying concentrations of dexamethasone, and interleukin-6 production was assessed using enzyme-linked immunosorbent assay. GCR was assessed as the concentration of dexamethasone required to decrease the stimulated interleukin-6 response by 50% (half maximal inhibitory concentration), with higher concentrations indicating greater GCR. Mixed-effects linear models tested time (pre, post, follow-up) by condition (MBSR versus HEP) effects. RESULTS: There was no overall time by condition effect on GCR across all time points. However, a significant time by condition effect was observed from preintervention to postintervention (d = 0.29), such that MBSR buffered increases in GCR observed in the HEP group. Although MBSR showed small, nonsignificant reductions in GCR from preintervention to 3-month follow-up, group differences were not maintained at the 3-month follow-up (d = 0.10). CONCLUSIONS: Results suggest that MBSR may protect against declines in the sensitivity of immune cells to the anti-inflammatory effects of glucocorticoids among at-risk lonely older adults and show value in studying this biological mechanism in future trials.Trial Registration: Clinical Trials identifier NCT02888600.


Asunto(s)
Atención Plena , Glucocorticoides , Interleucina-6 , Estrés Psicológico/terapia , Resultado del Tratamiento
6.
J Nerv Ment Dis ; 209(11): 796-801, 2021 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-34292276

RESUMEN

ABSTRACT: Understanding the underlying mechanisms of mindfulness has been a hot topic in recent years, not only in clinical fields but also in neuroscience. Most neuroimaging findings demonstrate that critical brain regions involved in mindfulness are responsible for cognitive functions and mental states. However, the brain is a complex system operating via multiple circuits and networks, rather than isolated brain regions solely responsible for specific functions. Mindfulness-based treatments for attention deficit hyperactivity disorder (ADHD) have emerged as promising adjunctive or alternative intervention approaches. We focus on four key brain circuits associated with mindfulness practices and effects on symptoms of ADHD and its cognitive dysfunction, including executive attention circuit, sustained attention circuit, impulsivity circuit, and hyperactivity circuit. We also expand our discussion to identify three key brain networks associated with mindfulness practices, including central executive network, default mode network, and salience network. We conclude by suggesting that more research efforts need to be devoted into identifying putative neuropsychological mechanisms of mindfulness on how it alleviates ADHD symptoms.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/fisiopatología , Corteza Cerebral/fisiopatología , Disfunción Cognitiva/fisiopatología , Cuerpo Calloso/fisiopatología , Red en Modo Predeterminado/fisiopatología , Atención Plena , Red Nerviosa/fisiopatología , Sustancia Blanca/fisiopatología , Trastorno por Déficit de Atención con Hiperactividad/complicaciones , Disfunción Cognitiva/etiología , Función Ejecutiva/fisiología , Giro del Cíngulo/fisiopatología , Humanos , Conducta Impulsiva/fisiología , Corteza Prefrontal/fisiopatología
7.
Adv Mind Body Med ; 32(4): 9-17, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-31370035

RESUMEN

CONTEXT: Behavioral lifestyle interventions to lower body mass index (BMI; kg/m2) are the standard approach for preventing adolescent-onset type 2 diabetes (T2D). Unfortunately, existing programs have had limited long-term success of lessening insulin resistance, the key physiological risk indicator for T2D. Underlying psychosocial factors, particularly depressive symptoms, have been related to insulin resistance, independent of BMI or body fat. Preliminary evidence indicates that mindfulness-based programs show promise for intervening with depression and T2D; yet, this approach is novel and data in adolescents are scarce. OBJECTIVE: The objectives of this study were (1) to evaluate the benefits, and potential underlying mechanisms, of a mindfulness-based intervention in adolescents at-risk for T2D with depressive symptoms and (2) to consider clinical implementation with this specific, psychologically, and medically at-risk adolescent population. DESIGN AND SETTING: The research team conducted a case study report. The setting was an outpatient therapy clinic and research laboratory at a university. PARTICIPANT: The participant was a 16-y-old female with elevated depressive symptoms, obesity, and insulin resistance, and a family history of T2D. INTERVENTION AND OUTCOMES: The intervention was a 6-wk mindfulness-based group program. The key outcomes were patterns of change in trait mindfulness, depression, and insulin resistance in the course of a 1-y follow-up. Secondary outcomes were patterns of change in reported-overeating patterns and cortisol awakening response. RESULTS: Compared with her scores at baseline, the participant displayed a pattern of increased trait mindfulness, decreased depressive symptoms, and lessening of insulin resistance immediately following the group program and at 1 y. BMI and body fat were stable. There was a remission in reported-overeating and a pattern of declining cortisol awakening response 1 y later. Participant feedback on the intervention was generally positive but also provided potential modifications to strengthen acceptability and effectiveness. CONCLUSIONS: The current case results suggest that teaching mindfulness skills to adolescent girls at risk for T2D with depressive symptoms may offer distinctive advantages for treating depression and T2D risk. Clinical implications for increasing the success of implementing mindfulness-based programs in this population include a focus on promotion of social connectedness within the group, implementation of strategies to increase adherence to home practice activities, and the use of facilitation techniques to promote concrete understanding of abstract mindfulness concepts. Future, adequately powered clinical trial data are required to test therapeutic mechanisms and recommended adaptations.


Asunto(s)
Trastorno Depresivo , Diabetes Mellitus Tipo 2 , Atención Plena , Adolescente , Depresión , Trastorno Depresivo/prevención & control , Diabetes Mellitus Tipo 2/prevención & control , Femenino , Humanos , Resistencia a la Insulina
8.
Psychosom Med ; 79(6): 674-683, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28323668

RESUMEN

OBJECTIVE: Mindfulness meditation training has been previously shown to enhance behavioral measures of executive control (e.g., attention, working memory, cognitive control), but the neural mechanisms underlying these improvements are largely unknown. Here, we test whether mindfulness training interventions foster executive control by strengthening functional connections between dorsolateral prefrontal cortex (dlPFC)-a hub of the executive control network-and frontoparietal regions that coordinate executive function. METHODS: Thirty-five adults with elevated levels of psychological distress participated in a 3-day randomized controlled trial of intensive mindfulness meditation or relaxation training. Participants completed a resting state functional magnetic resonance imaging scan before and after the intervention. We tested whether mindfulness meditation training increased resting state functional connectivity (rsFC) between dlPFC and frontoparietal control network regions. RESULTS: Left dlPFC showed increased connectivity to the right inferior frontal gyrus (T = 3.74), right middle frontal gyrus (MFG) (T = 3.98), right supplementary eye field (T = 4.29), right parietal cortex (T = 4.44), and left middle temporal gyrus (T = 3.97, all p < .05) after mindfulness training relative to the relaxation control. Right dlPFC showed increased connectivity to right MFG (T = 4.97, p < .05). CONCLUSIONS: We report that mindfulness training increases rsFC between dlPFC and dorsal network (superior parietal lobule, supplementary eye field, MFG) and ventral network (right IFG, middle temporal/angular gyrus) regions. These findings extend previous work showing increased functional connectivity among brain regions associated with executive function during active meditation by identifying specific neural circuits in which rsFC is enhanced by a mindfulness intervention in individuals with high levels of psychological distress. CLINICAL TRIAL REGISTRATION: Clinicaltrials.gov,NCT01628809.


Asunto(s)
Función Ejecutiva/fisiología , Lóbulo Frontal/fisiología , Atención Plena/métodos , Lóbulo Parietal/fisiología , Terapia por Relajación/métodos , Estrés Psicológico/fisiopatología , Estrés Psicológico/terapia , Adulto , Femenino , Lóbulo Frontal/diagnóstico por imagen , Humanos , Masculino , Meditación/métodos , Persona de Mediana Edad , Lóbulo Parietal/diagnóstico por imagen , Corteza Prefrontal/diagnóstico por imagen , Corteza Prefrontal/fisiología , Estrés Psicológico/diagnóstico por imagen , Desempleo/psicología , Adulto Joven
9.
J Pers ; 84(3): 393-404, 2016 06.
Artículo en Inglés | MEDLINE | ID: mdl-25676934

RESUMEN

In social situations, skillful regulation of emotion and behavior depends on efficiently discerning others' emotions. Identifying factors that promote timely and accurate discernment of facial expressions can therefore advance understanding of social emotion regulation and behavior. The present research examined whether trait mindfulness predicts neural and behavioral markers of early top-down attention to, and efficient discrimination of, socioemotional stimuli. Attention-based event-related potentials (ERPs) and behavioral responses were recorded while participants (N = 62; White; 67% female; Mage = 19.09 years, SD = 2.14 years) completed an emotional go/no-go task involving happy, neutral, and fearful facial expressions. Mindfulness predicted larger (more negative) N100 and N200 ERP amplitudes to both go and no-go stimuli. Mindfulness also predicted faster response time that was not attributable to a speed-accuracy trade-off. Significant relations held after accounting for attentional control or social anxiety. This study adds neurophysiological support for foundational accounts that mindfulness entails moment-to-moment attention with lower tendencies toward habitual patterns of responding. Mindfulness may enhance the quality of social behavior in socioemotional contexts by promoting efficient top-down attention to and discrimination of others' emotions, alongside greater monitoring and inhibition of automatic response tendencies.


Asunto(s)
Atención/fisiología , Potenciales Evocados/fisiología , Expresión Facial , Reconocimiento Facial/fisiología , Atención Plena , Personalidad/fisiología , Adolescente , Adulto , Femenino , Humanos , Masculino , Conducta Social , Adulto Joven
10.
Aging Ment Health ; 20(11): 1157-1166, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-26211415

RESUMEN

OBJECTIVES: The majority of care for those with Alzheimer's disease and other age-related dementias is provided in the home by family members. To date, there is no consistently effective intervention for reducing the significant stress burden of many family caregivers. The present pilot randomized controlled trial tested the efficacy of an adapted, eight-week mindfulness-based stress reduction (MBSR) program, relative to a near structurally equivalent, standard social support (SS) control condition for reducing caregiver stress and enhancing the care giver-recipient relationship. METHOD: Thirty-eight family caregivers were randomized to MBSR or SS, with measures of diurnal salivary cortisol, and perceived stress, mental health, experiential avoidance, caregiver burden, and relationship quality collected pre- and post-intervention and at three-month follow-up. RESULTS: MBSR participants reported significantly lower levels of perceived stress and mood disturbance at post-intervention relative to SS participants. At three-month follow-up, participants in both treatment conditions reported improvements on several psychosocial outcomes. At follow-up, there were no condition differences on these outcomes, nor did MBSR and SS participants differ in diurnal cortisol response change over the course of the study. CONCLUSION: Both MBSR and SS showed stress reduction effects, and MBSR showed no sustained neuroendocrine and psychosocial advantages over SS. The lack of treatment condition differences could be attributable to active ingredients in both interventions, and to population-specific and design factors.


Asunto(s)
Cuidadores/psicología , Demencia , Familia , Atención Plena , Estrés Psicológico/prevención & control , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Hidrocortisona/análisis , Masculino , Persona de Mediana Edad , Proyectos Piloto , Saliva/química , Autoinforme , Apoyo Social
11.
Cogn Emot ; 29(8): 1466-74, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25496330

RESUMEN

Effective emotion regulation is important for high-quality social functioning. Recent laboratory-based evidence suggests that mindfulness may enhance emotion regulation in socioemotional contexts; however, little is known about mindful emotion regulation during in vivo social interactions. In a study of romantic couples, we assessed each partner's mindfulness and top-down attentional efficiency (with an Emotional Go/No-Go task) prior to sampling emotions and perceived connection with others during day-to-day social interactions. Analyses revealed that mindfulness-related differences in top-down attentional efficiency on the Emotional Go/No-Go predicted positive emotion during daily social interactions. In turn, positive emotion and two additional indices of social emotion regulation each mediated the relation between actor mindfulness and perceived social connection. In corresponding analyses, neither trait reappraisal nor suppression use predicted the outcomes, and all mindfulness relations held controlling for these strategies. Findings support a framework for investigating mindfulness and higher-quality social functioning, for which mindful emotion regulation may be key.


Asunto(s)
Atención , Emociones , Relaciones Interpersonales , Atención Plena , Composición Familiar , Femenino , Humanos , Masculino , Adulto Joven
12.
Nicotine Tob Res ; 16(1): 93-9, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23943842

RESUMEN

INTRODUCTION: To date research on tobacco smoking with a waterpipe (hookah, narghile, and shisha) has focused primarily on the individual user in a laboratory setting. Yet, waterpipe tobacco smoking is often a social practice that occurs in cafés, homes, and other natural settings. This observational study examined the behavior of waterpipe tobacco smokers and the social and contextual features of waterpipe use among groups in their natural environment. METHODS: Trained observers visited urban waterpipe cafés on multiple occasions during an 8-month period. Observations of 241 individual users in naturally formed groups were made on smoking topography (puff frequency, duration, and interpuff interval [IPI]) and engagement in other activities (e.g., food and drink consumption, other tobacco use, and media viewing). RESULTS: Most users were male in group sizes of 3-4 persons, on average, and each table had 1 waterpipe, on average. The predominant social features during observational periods were conversation and nonalcoholic drinking. Greater puff number was associated with smaller group sizes and more waterpipes per group, while longer IPIs were associated with larger group sizes and fewer waterpipes per group. Additionally, greater puff frequency was observed during media viewing and in the absence of other tobacco use. CONCLUSIONS: Overall, the results suggest that waterpipe smoking behavior is affected by group size and by certain social activities. Discussion focuses on how these findings enhance our understanding of factors that may influence exposure to waterpipe tobacco smoke toxicants in naturalistic environments.


Asunto(s)
Fumar , Adulto , Femenino , Humanos , Exposición por Inhalación/análisis , Masculino , Contaminación por Humo de Tabaco/estadística & datos numéricos
13.
Res Sq ; 2024 Mar 28.
Artículo en Inglés | MEDLINE | ID: mdl-38586010

RESUMEN

Emotional appraisals of political stimuli (e.g., videos) have been shown to drive shared neural encoding, which correspond to shared, yet divisive, interpretations of such stimuli. However, mindfulness practice may entrain a form of emotion regulation that de-automatizes social biases, possibly through alteration of such neural mechanisms. The present study combined a naturalistic neuroimaging paradigm and a randomized controlled trial to examine the effects of short-term mindfulness training (MT) (n = 35) vs structurally equivalent Cognitive Reappraisal training (CT) (n = 37) on politically-situated emotions while evaluating the mechanistic role of prefrontal cortical neural synchrony. Participants underwent functional near-infrared spectroscopy (fNIRS) recording while viewing inflammatory partisan news clips and continuously rating their momentary discrete emotions. MT participants were more likely to respond with extreme levels of anger (odds ratio = 0.12, p < .001) and disgust (odds ratio = 0.08, p < .001) relative to CT participants. Neural synchrony-based analyses suggested that participants with extreme emotion reactions exhibited greater prefrontal cortical neural synchrony, but that this pattern was less prominent in participants receiving MT relative to CT (CT > MT; channel 1 ISC = .040, p = .030).

14.
J Am Coll Health ; : 1-13, 2024 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-38810254

RESUMEN

Objective: This study sought to examine how daily mind wandering is related to loneliness, felt connection to others, and school belonging among college students. Participants: Three samples (n = 209, n = 173, and n = 266) from two US campuses were recruited. Methods: Data were collected via ecological momentary assessment over the course of two academic quarters in one sample and an academic semester in two samples. Results: Social well-being declined throughout the academic term in all samples. Lower day-to-day mind wandering predicted lower loneliness at the next time point and was concurrently related to a higher felt connection to others and higher school belonging. Thoughts about the past and future were associated with lower social well-being than present-focused thoughts. Conclusions: This study supports the proposition that promoting present-centered attention can benefit college students' social well-being and alleviate their feelings of loneliness and isolation that they often experience.

15.
Neuropsychobiology ; 68(1): 34-43, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23774986

RESUMEN

BACKGROUND/AIMS: Mindfulness-based stress reduction (MBSR) has enhanced cognition, positive emotion, and immunity in younger and middle-aged samples; its benefits are less well known for older persons. Here we report on a randomized controlled trial of MBSR for older adults and its effects on executive function, left frontal asymmetry of the EEG alpha band, and antibody response. METHODS: Older adults (n = 201) were randomized to MBSR or waiting list control. The outcome measures were: the Trail Making Test part B/A (Trails B/A) ratio, a measure of executive function; changes in left frontal alpha asymmetry, an indicator of positive emotions or approach motivation; depression, mindfulness, and perceived stress scores, and the immunoglobulin G response to a protein antigen, a measure of adaptive immunity. RESULTS: MBSR participants had a lower Trails B/A ratio immediately after intervention (p < 0.05); reduced shift to rightward frontal alpha activation after intervention (p = 0.03); higher baseline antibody levels after intervention (p < 0.01), but lower antibody responses 24 weeks after antigen challenge (p < 0.04), and improved mindfulness after intervention (p = 0.023) and at 21 weeks of follow-up (p = 0.006). CONCLUSIONS: MBSR produced small but significant changes in executive function, mindfulness, and sustained left frontal alpha asymmetry. The antibody findings at follow-up were unexpected. Further study of the effects of MBSR on immune function should assess changes in antibody responses in comparison to T-cell-mediated effector functions, which decline as a function of age.


Asunto(s)
Inmunidad Adaptativa/inmunología , Ritmo alfa/fisiología , Dominancia Cerebral/fisiología , Función Ejecutiva/fisiología , Lóbulo Frontal/fisiología , Atención Plena , Estrés Psicológico/fisiopatología , Estrés Psicológico/terapia , Anciano , Envejecimiento/inmunología , Envejecimiento/fisiología , Envejecimiento/psicología , Femenino , Hemocianinas/inmunología , Humanos , Inmunoglobulina G/sangre , Masculino , Persona de Mediana Edad , Estrés Psicológico/sangre , Estrés Psicológico/psicología
16.
Mindfulness (N Y) ; : 1-17, 2023 Mar 27.
Artículo en Inglés | MEDLINE | ID: mdl-37362189

RESUMEN

Objectives: Relative to the tendency to empathize with and help sociocultural in-group members, there are often social and psychological barriers to responding prosocially toward out-group members. This experiment examined the roles of mindfulness instruction and compassion instruction in fostering prosocial behavior toward an ethnic out-group (non-U.S. Arabs) relative to an ethnic in-group (U.S. residents). The study also examined whether contemplative practices would predict less parochial empathy and whether parochial empathy would mediate the relations between mindfulness/compassion and prosocial behavior toward the out-group. Method: A national sample of n = 450 U.S. residents was recruited online via the Prolific platform using the standard sample function, which distributed the study to available participants on Prolific. Participants were randomly assigned to one of three brief, structurally equivalent audio-recorded instruction conditions: mindfulness meditation, compassion meditation, or a relaxation control, and then completed a series of tasks to assess prosociality toward in- and out-group members. Results: The compassion training was most effective in reducing parochial empathy when controlling for all covariates. The mindfulness training reduced parochial empathy when controlling for in-group empathy, and it led to greater out-group altruism and support for out-group immigration. Parochial empathy predicted out-group altruism; however, it was not a better predictor of support for Arab immigration than trait empathic concern. Training conditions did not differ on support for out-group cause. Exploratory moderation analyses found that those with higher trait empathic concern and intergroup contact quality were more likely to show compassion training and mindfulness training effects, respectively, on support for out-group immigration. Conclusions: Brief compassion training had the strongest effect on parochial empathy, but mindfulness training showed stronger effects on out-group altruism and support for out-group immigration. Predisposing social psychological characteristics may enhance intergroup prosociality among those receiving compassion or mindfulness instruction. Preregistration: This study is preregistered at https://osf.io/rnc97. Supplementary Information: The online version contains supplementary material available at 10.1007/s12671-023-02100-z.

17.
Psychol Addict Behav ; 2023 Dec 21.
Artículo en Inglés | MEDLINE | ID: mdl-38127522

RESUMEN

OBJECTIVE: Researchers and theorists studying intergroup relations have been interested in the impact of alcohol on interracial responding. Theories predict that alcohol will exacerbate expressions of racial bias by increasing reliance on stereotypes and/or by decreasing controlled processing and self-monitoring. Prior studies testing these theories have often examined alcohol's effects on implicit (i.e., indirect) measures of racial bias with inconsistent results. However, previous research in this area has suffered from several methodological limitations, including small sample sizes and doses of alcohol that may have been too low to induce substantial intoxication. METHOD: Here, in more than triple the number of alcohol participants than the largest prior study, we tested whether an intoxicating dose of alcohol (target breath alcohol concentration of .08%) exacerbated implicit racial bias. Young adults who identified as races other than Black or African American (N = 207) were randomly assigned to consume an alcoholic or placebo beverage and completed the race-based Implicit Association Test (race IAT) testing implicit preference for White (vs. Black) individuals [or, conversely, bias against Black (vs. White) individuals]. RESULTS: All participants demonstrated an implicit racial bias (i.e., linking traditionally Black names with negative/unpleasant words), with no difference in this implicit racial bias across beverage conditions. Specifically, there were no differences between alcohol participants' race IAT D scores (M = 0.55, SD = 0.39), and placebo participants' race IAT D scores (M = 0.59, SD = 0.35), b = 0.05, 95%CI [-0.07, 0.18], p = .422. CONCLUSIONS: These findings challenge theories and prior studies suggesting that alcohol increases implicit racial bias. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

18.
Sci Rep ; 13(1): 17456, 2023 10 14.
Artículo en Inglés | MEDLINE | ID: mdl-37838734

RESUMEN

Considerable evidence supports the role of present-moment attention, a central feature of mindfulness, in subjective wellbeing maintenance and enhancement. Yet it is not clear why such a relation exists. This study examined the genetic and environmental contributions of present-moment attention to subjective wellbeing. Consistent with the "generalist genes hypothesis" and prior evidence, we hypothesized that presence and subjective wellbeing would show a substantial genetic correlation and smaller environmental correlation. Using a large epidemiological sample of healthy 16-year-old twins in the United Kingdom (N = 1136 monozygotic (MZ) and dizygotic (DZ) twin pairs), genetic overlap was found between presence and the cognitive component of subjective wellbeing (life satisfaction), and to a lesser extent, the affective component of subjective wellbeing (operationalized as happiness). The non-shared environmental overlap between these constructs was substantial. This study provides the first evidence known to us showing that present-centered attention, a primary component of mindfulness, has both genetic and environmental overlap with subjective wellbeing. The findings have implications for understanding mechanisms by which presence is associated with positive emotions and life satisfaction, and suggest, pending additional research, that mindfulness-based interventions to enhance wellbeing may be best suited to those with a genetic propensity toward mindful presence.


Asunto(s)
Atención Plena , Gemelos Dicigóticos , Humanos , Adolescente , Gemelos Dicigóticos/genética , Gemelos Dicigóticos/psicología , Felicidad , Reino Unido , Gemelos Monocigóticos/genética , Gemelos Monocigóticos/psicología
19.
Int J Clin Health Psychol ; 23(4): 100381, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36969914

RESUMEN

Clinical and neuroscientific evidence indicates that transdiagnostic processes contribute to the generation and maintenance of psychopathological symptoms and disorders. Rigidity (inflexibility) appears a core feature of most transdiagnostic pathological processes. Decreasing rigidity may prove important to restore and maintain mental health. One of the primary domains in which rigidity and flexibility plays a role concerns the self. We adopt the pattern theory of self (PTS) for a working definition of self. This incorporates the pluralist view on self as constituted by multiple aspects or processes, understood to constitute a self-pattern, i.e. processes organized in non-linear dynamical relations across a number of time scales. The use of mindfulness meditation in the format of Mindfulness Based Interventions (MBIs) has been developed over four decades in Clinical Psychology. MBIs are promising as evidence-based treatments, shown to be equivalent to gold-standard treatments and superior to specific active controls in several randomized controlled trials. Notably, MBIs have been shown to target transdiagnostic symptoms. Given the hypothesized central role of rigid, habitual self-patterns in psychopathology, PTS offers a useful frame to understand how mindfulness may be beneficial in decreasing inflexibility. We discuss the evidence that mindfulness can alter the psychological and behavioral expression of individual aspects of the self-pattern, as well as favour change in the self-pattern as a whole gestalt. We discuss neuroscientific research on how the phenomenology of the self (pattern) is reflected in associated cortical networks and meditation-related alterations in cortical networks. Creating a synergy between these two aspects can increase understanding of psychopathological processes and improve diagnostic and therapeutic options.

20.
Psychophysiology ; 59(7): e14024, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35182393

RESUMEN

Commonly conducted mindfulness-based trainings such as Mindfulness-based Stress Reduction (MBSR) and Mindfulness-based Cognitive Therapy (MBCT) highlight training in two key forms of meditation: focused attention (FA) and open monitoring (OM). Largely unknown is what each of these mindfulness practices contributes to emotional and other important training outcomes. This dismantling trial compared the effects of structurally equivalent trainings in MBCT, FA, and OM on neural and subjective markers of emotional reactivity and regulation among community adults, with the aim to better understand which forms of training represent active ingredients in mindfulness trainings. Participants with varying levels of depressive symptoms were randomized to one of the three trainings. Before and after each 8-week training, N = 89 participants completed a modified version of the Emotional Reactivity and Regulation Task while electroencephalographic (EEG) and self-reported emotional responses to negative, positive, and neutral photographic images were collected. Examination of EEG-based frontal alpha band asymmetry during passive viewing (reactivity) and active regulation phases of the task showed that FA and MBCT trainings produced significant leftward hemispheric shifts in frontal alpha asymmetry, commonly associated with a shift toward approach-based positive affect. Self-reported emotional responses to negative images corroborated these results, suggesting salutary changes in both emotional reactivity and regulation. OM training had limited beneficial effects, restricted to the subjective outcomes. The findings suggest that MBCT may derive its greatest benefit from training in FA rather than OM. Discussion highlights the potential value of FA training for emotional health.


Asunto(s)
Terapia Cognitivo-Conductual , Meditación , Atención Plena , Adulto , Atención , Terapia Cognitivo-Conductual/métodos , Emociones/fisiología , Humanos , Meditación/métodos , Meditación/psicología , Atención Plena/métodos
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