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1.
PLoS One ; 19(3): e0300682, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38551896

RESUMEN

The concept of self-states is a recurring theme in various psychotherapeutic and counseling methodologies. However, the predominantly unconscious nature of these self-states presents two challenges. Firstly, it renders the process of working with them susceptible to biases and therapeutic suggestions. Secondly, there is skepticism regarding the observability and differentiation of self-states beyond subjective experiences. In this study, we demonstrate the feasibility of eliciting self-states from clients and objectively distinguishing these evoked self-states through the lens of neutral observers. The self-state constellation method, utilized as an embodied approach, facilitated the activation of diverse self-states. External observers then assessed the nonverbal manifestations of affect along three primary dimensions: emotional valence, arousal, and dominance. Our findings indicate that external observers could reliably discern and differentiate individual self-states based on the bodily displayed valence and dominance. However, the ability to distinguish states based on displayed arousal was not evident. Importantly, this distinctiveness of various self-states was not limited to specific individuals but extended across the entire recording sample. Therefore, within the framework of the self-state constellation method, it is evident that individual self-states can be intentionally evoked, and these states can be objectively differentiated beyond the subjective experiences of the client.


Asunto(s)
Emociones , Autoimagen , Humanos , Emociones/fisiología
2.
PLoS One ; 19(3): e0289664, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38442107

RESUMEN

INTRODUCTION: Traumatic event exposure is a risk factor for the development and maintenance of psychopathology. Social-affective responses to trauma exposure (e.g. shame, guilt, revenge, social alienation) could moderate this relationship, but little is known about their relevance for different types of psychopathology. Moreover, the interplay of different social-affective responses to trauma exposure in predicting psychopathology is poorly understood. METHODS: In a sample of N = 1321 trauma-exposed German soldiers, we examined cross-sectional associations of trauma-related social alienation, revenge, guilt and shame with depressive disorder, alcohol use disorder, posttraumatic stress disorder and dimensional measures of depression and anxiety. Latent class analysis was conducted to identify possible patterns of social-affective responses to trauma exposure, and their relation to psychopathology. RESULTS: All social-affective responses to trauma exposure predicted current posttraumatic stress disorder, depressive disorder, alcohol use disorder and higher depressive and anxiety symptoms. Three latent classes fitted the data best, reflecting groups with (1) low, (2) moderate and (3) high risk for social-affective responses to trauma exposure. The low-risk group demonstrated the lowest expressions on all psychopathology measures. CONCLUSIONS: Trauma-related social alienation, shame, guilt, and revenge are characteristic of individuals with posttraumatic stress disorder, depressive disorder, alcohol use disorder, and with higher anxiety and depressive symptoms. There was little evidence for distinctive patterns of social-affective responses to trauma exposure despite variation in the overall proneness to show social-affective responses. Social-affective responses to trauma exposure could represent promising treatment targets for both cognitive and emotion-focused interventions.


Asunto(s)
Alcoholismo , Humanos , Estudios Transversales , Ansiedad , Culpa , Vergüenza
3.
Hum Brain Mapp ; 45(3): e26576, 2024 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-38401139

RESUMEN

Internalizing symptoms such as elevated stress and sustained negative affect can be important warning signs for developing mental disorders. A recent theoretical framework suggests a complex interplay of empathy, theory of mind (ToM), and negative thinking processes as a crucial risk combination for internalizing symptoms. To disentangle these relationships, this study utilizes neural, behavioral, and self-report data to examine how the interplay between empathy, ToM, and negative thinking processes relates to stress and negative affect. We reanalyzed the baseline data of N = 302 healthy participants (57% female, Mage = 40.52, SDage = 9.30) who participated in a large-scale mental training study, the ReSource project. Empathy and ToM were assessed using a validated fMRI paradigm featuring naturalistic video stimuli and via self-report. Additional self-report scales were employed to measure internalizing symptoms (perceived stress, negative affect) and negative thinking processes (rumination and self-blame). Our results revealed linear associations of self-reported ToM and empathic distress with stress and negative affect. Also, both lower and higher, compared to average, activation in the anterior insula during empathic processing and in the middle temporal gyrus during ToM performance was significantly associated with internalizing symptoms. These associations were dependent on rumination and self-blame. Our findings indicate specific risk constellations for internalizing symptoms. Especially people with lower self-reported ToM and higher empathic distress may be at risk for more internalizing symptoms. Quadratic associations of empathy- and ToM-related brain activation with internalizing symptoms depended on negative thinking processes, suggesting differential effects of cognitive and affective functioning on internalizing symptoms. Using a multi-method approach, these findings advance current research by shedding light on which complex risk combinations of cognitive and affective functioning are relevant for internalizing symptoms.


Asunto(s)
Pesimismo , Teoría de la Mente , Humanos , Femenino , Adulto , Niño , Masculino , Empatía , Teoría de la Mente/fisiología , Encéfalo/diagnóstico por imagen , Encéfalo/fisiología , Factores de Riesgo
4.
Neuropsychopharmacology ; 49(5): 814-823, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38332015

RESUMEN

Patients with bipolar disorder (BD) show alterations in both gray matter volume (GMV) and white matter (WM) integrity compared with healthy controls (HC). However, it remains unclear whether the phenotypically distinct BD subtypes (BD-I and BD-II) also exhibit brain structural differences. This study investigated GMV and WM differences between HC, BD-I, and BD-II, along with clinical and genetic associations. N = 73 BD-I, n = 63 BD-II patients and n = 136 matched HC were included. Using voxel-based morphometry and tract-based spatial statistics, main effects of group in GMV and fractional anisotropy (FA) were analyzed. Associations between clinical and genetic features and GMV or FA were calculated using regression models. For FA but not GMV, we found significant differences between groups. BD-I patients showed lower FA compared with BD-II patients (ptfce-FWE = 0.006), primarily in the anterior corpus callosum. Compared with HC, BD-I patients exhibited lower FA in widespread clusters (ptfce-FWE < 0.001), including almost all major projection, association, and commissural fiber tracts. BD-II patients also demonstrated lower FA compared with HC, although less pronounced (ptfce-FWE = 0.049). The results remained unchanged after controlling for clinical and genetic features, for which no independent associations with FA or GMV emerged. Our findings suggest that, at a neurobiological level, BD subtypes may reflect distinct degrees of disease expression, with increasing WM microstructure disruption from BD-II to BD-I. This differential magnitude of microstructural alterations was not clearly linked to clinical and genetic variables. These findings should be considered when discussing the classification of BD subtypes within the spectrum of affective disorders.


Asunto(s)
Trastorno Bipolar , Sustancia Blanca , Humanos , Trastorno Bipolar/diagnóstico por imagen , Trastorno Bipolar/genética , Sustancia Gris/diagnóstico por imagen , Encéfalo , Sustancia Blanca/diagnóstico por imagen , Corteza Cerebral , Anisotropía
5.
Personal Disord ; 15(2): 157-171, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38095994

RESUMEN

"Lack of empathy" is a diagnostic criterion of narcissism, but the nature of interpersonal functioning in narcissism is still being debated. Both, empathy and narcissism, are multidimensional constructs, and their relation might depend upon contextual factors. We investigated social affect and cognition in narcissism spanning self-reported traits and experiential states (Ecological Momentary Assessment) as well as behavioral and brain indicators (task-related functional magnetic resonance imaging). N = 140 individuals were selected to cover the full dimensional range of grandiose and vulnerable narcissism, including their constituent self-regulatory dimensions of agentic, antagonistic, and neurotic narcissism. Grandiose narcissism was associated with lower social affect at almost all analysis levels. The associations can be attributed to antagonistic self-regulatory dynamics, and are associated with lower brain activation during subjective experiencing of social affect in regions of the salience network. Social cognition was habitually lowered but not impaired in antagonistic narcissism. Our findings do not support a general "lack of empathy." (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Asunto(s)
Cognición , Narcisismo , Humanos , Autoinforme , Empatía , Encéfalo/diagnóstico por imagen
6.
Conscious Cogn ; 117: 103608, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38042119

RESUMEN

Acetylcholine is a neurotransmitter and neuromodulator involved in a variety of cognitive functions. Additionally, acetylcholine is involved in the regulation of REM sleep: cholinergic neurons in the brainstem and basal forebrain project to and innervate wide areas of the cerebral cortex, and reciprocally interact with other neuromodulatory systems, to produce the sleep-wake cycle and different sleep stages. Consciousness and cognition vary considerably across and within sleep stages, with metacognitive capacity being strikingly reduced even during aesthetically and emotionally rich dream experiences. A notable exception is the phenomenon of lucid dreaming-a rare state whereby waking levels of metacognitive awareness are restored during sleep-resulting in individuals becoming aware of the fact that they are dreaming. The role of neurotransmitters in these fluctuations of consciousness and cognition during sleep is still poorly understood. While recent studies using acetylcholinesterase inhibitors suggest a potential role of acetylcholine in the occurrence of lucid dreaming, the underlying mechanisms by which this effect is produced remains un-modelled and unknown; with the causal link between cholinergic mechanisms and upstream psychological states being complex and elusive. Several theories and approaches targeting the association between acetylcholine and metacognition during wakefulness and sleep are highlighted in this review, moving through microscopic, mesoscopic and macroscopic levels of analysis to detail this phenomenon at several organisational scales. Several exploratory hypotheses will be developed to guide future research towards fully articulating how metacognition is affected by activity at the acetylcholine receptor.


Asunto(s)
Metacognición , Humanos , Metacognición/fisiología , Acetilcolina , Acetilcolinesterasa , Sueño/fisiología , Sueños/fisiología , Vigilia/fisiología
7.
J Anxiety Disord ; 101: 102792, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37989038

RESUMEN

BACKGROUND: Although exposure-based cognitive-behavioral therapy for anxiety disorders has frequently been proven effective, only few studies examined whether it improves everyday behavioral outcomes such as social and physical activity. METHODS: 126 participants (85 patients with panic disorder, agoraphobia, social anxiety disorder, or specific phobias, and 41 controls without mental disorders) completed smartphone-based ambulatory ratings (activities, social interactions, mood, physical symptoms) and motion sensor-based indices of physical activity (steps, time spent moving, metabolic activity) at baseline, during, and after exposure-based treatment. RESULTS: Prior to treatment, patients showed reduced mood and physical activity relative to healthy controls. Over the course of therapy, mood ratings, interactions with strangers and indices of physical activity improved, while reported physical symptoms decreased. Overall results did not differ between patients with primary panic disorder/agoraphobia and social anxiety disorder. Higher depression scores at baseline were associated with larger changes in reported symptoms and mood ratings, but smaller changes in physical activity CONCLUSIONS: Exposure-based treatment initiates increased physical activity, more frequent interaction with strangers, and improvements in everyday mood. The current approach provides objective and fine-graded process and outcome measures that may help to further improve treatments and possibly reduce relapse.


Asunto(s)
Trastorno de Pánico , Trastornos Fóbicos , Humanos , Trastornos de Ansiedad/terapia , Trastornos Fóbicos/terapia , Psicoterapia/métodos , Trastorno de Pánico/terapia , Ejercicio Físico
8.
Sci Rep ; 13(1): 20748, 2023 11 25.
Artículo en Inglés | MEDLINE | ID: mdl-38007569

RESUMEN

Despite broad interest, experimental evidence for gender differences in social abilities remains inconclusive. Two important factors may have limited previous results: (i) a lack of clear distinctions between empathy (sharing another's feelings), compassion (a feeling of concern toward others), and Theory of Mind (ToM; inferring others' mental states), and (ii) the absence of robust, naturalistic social tasks. Overcoming these limitations, in Study 1 (N = 295) we integrate three independent, previously published datasets, each using a dynamic and situated, video-based paradigm which disentangles ToM, empathy, and compassion, to examine gender differences in social abilities. We observed greater empathy and compassion in women compared to men, but found no evidence that either gender performed better in ToM. In Study 2 (n = 226) we extend this paradigm to allow participants to engage in prosocial donations. Along with replicating the findings of Study 1, we also observed greater prosocial donations in women compared to men. Additionally, we discuss an exploratory, novel finding, namely that ToM performance is positively associated with prosocial donations in women, but not men. Overall, these results emphasize the importance of establishing experimental designs that incorporate dynamic, complex stimuli to better capture the social realities that men and women experience in their daily lives.


Asunto(s)
Empatía , Teoría de la Mente , Masculino , Humanos , Femenino , Factores Sexuales , Emociones , Habilidades Sociales
9.
Perspect Psychol Sci ; : 17456916231188000, 2023 Aug 11.
Artículo en Inglés | MEDLINE | ID: mdl-37565656

RESUMEN

Social neuroscience has often been criticized for approaching the investigation of the neural processes that enable social interaction and cognition from a passive, detached, third-person perspective, without involving any real-time social interaction. With the emergence of second-person neuroscience, investigators have uncovered the unique complexity of neural-activation patterns in actual, real-time interaction. Social cognition that occurs during social interaction is fundamentally different from that unfolding during social observation. However, it remains unclear how the neural correlates of social interaction are to be interpreted. Here, we leverage the active-inference framework to shed light on the mechanisms at play during social interaction in second-person neuroscience studies. Specifically, we show how counterfactually rich mutual predictions, real-time bodily adaptation, and policy selection explain activation in components of the default mode, salience, and frontoparietal networks of the brain, as well as in the basal ganglia. We further argue that these processes constitute the crucial neural processes that underwrite bona fide social interaction. By placing the experimental approach of second-person neuroscience on the theoretical foundation of the active-inference framework, we inform the field of social neuroscience about the mechanisms of real-life interactions. We thereby contribute to the theoretical foundations of empirical second-person neuroscience.

11.
Neuroimage ; 279: 120315, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-37557972

RESUMEN

Socioeconomic status (SES), a concept related to an individual's economic and social position relative to others, can shape social interactions like altruistic behaviors. However, little is known about the exact neurocognitive mechanisms that link SES with altruism. Our study aimed to provide a comprehensive account of the sociocognitive and neural mechanisms through which SES affects charitable giving - an important variant of human altruism. To this end, participants completed a charitable donation task while their brain activity was measured using functional magnetic resonance imaging (fMRI). We also assessed participants' socio-cognitive ability to infer other people's mental states (i.e., mentalizing) - a driver of prosocial behavior - in an independent social task. Behaviorally, we found that both charitable giving and social cognition were status-dependent, as subjective SES positively predicted donations and mentalizing capacity. Moreover, the link between SES and charitable giving was mediated by individuals' mentalizing capacity. At the neural level, a multivariate pattern analysis of fMRI data revealed that higher subjective SES was associated with stronger value coding in the right temporoparietal junction (rTPJ). The strength of this value representation predicted charitable giving and was linked to mentalizing. Furthermore, we observed an increased negative functional coupling between rTPJ and left putamen with higher SES. Together, increased charitable giving in higher-status individuals could be explained by status-dependent recruitment of mentalizing-related value coding and altered functional connectivity in the brain. Our findings provide insights into the socio- and neurocognitive mechanisms explaining why and when higher SES leads to prosociality, which might ultimately inform targeted interventions to promote prosocial behavior in human societies.


Asunto(s)
Mentalización , Teoría de la Mente , Humanos , Encéfalo/diagnóstico por imagen , Altruismo , Mapeo Encefálico , Clase Social , Imagen por Resonancia Magnética
12.
Elife ; 122023 07 07.
Artículo en Inglés | MEDLINE | ID: mdl-37417306

RESUMEN

The human brain supports social cognitive functions, including Theory of Mind, empathy, and compassion, through its intrinsic hierarchical organization. However, it remains unclear how the learning and refinement of social skills shapes brain function and structure. We studied if different types of social mental training induce changes in cortical function and microstructure, investigating 332 healthy adults (197 women, 20-55 years) with repeated multimodal neuroimaging and behavioral testing. Our neuroimaging approach examined longitudinal changes in cortical functional gradients and myelin-sensitive T1 relaxometry, two complementary measures of cortical hierarchical organization. We observed marked changes in intrinsic cortical function and microstructure, which varied as a function of social training content. In particular, cortical function and microstructure changed as a result of attention-mindfulness and socio-cognitive training in regions functionally associated with attention and interoception, including insular and parietal cortices. Conversely, socio-affective and socio-cognitive training resulted in differential microstructural changes in regions classically implicated in interoceptive and emotional processing, including insular and orbitofrontal areas, but did not result in functional reorganization. Notably, longitudinal changes in cortical function and microstructure predicted behavioral change in attention, compassion and perspective-taking. Our work demonstrates functional and microstructural plasticity after the training of social-interoceptive functions, and illustrates the bidirectional relationship between brain organisation and human social skills.


Navigating daily life requires a number of social skills, such as empathy and understanding other people's thoughts and feelings. Research has found that specific parts of the brain support these abilities in humans. For instance, the brain areas that support compassion are different from the regions involved in understanding other people's perspective and thoughts. It is unclear how learning and refining social skills alters the brain. Previous studies have shown that learning new motor skills restructures the areas of the brain that regulate movement. Could acquiring and improving social skills have a similar effect? To investigate, Valk et al. trained more than 300 healthy adults in different social skills over the course of three months as part of the ReSource project. The program was designed to enhance abilities in compassion and perspective through mental exercises and working in pairs. Participants were also trained using different approaches to see whether changes to the brain are influenced by how a skill is learnt. The brains of the participants were repeatedly pictured using magnetic resonance imaging (MRI). This revealed that different types of training caused unique changes in specific parts of the brain. For example, teaching mindfulness made parts of the brain less functionally connected, whereas training to understand other people's thought increased functional connections between various regions. These functional alterations were paralleled by changes in brain structure. They could also predict improvements in social skills which were measured throughout the study using behavioural tests. These findings suggest that training can help to improve social skills even in adults, which may benefit their quality of life through stronger social connections. Better knowledge of how to develop social skills and their biological basis will help to identify people who need support with these interactions and develop new therapies to nurture their abilities.


Asunto(s)
Encéfalo , Cognición , Adulto , Humanos , Femenino , Encéfalo/diagnóstico por imagen , Emociones , Aprendizaje , Empatía
13.
J Exp Psychol Gen ; 152(11): 3058-3073, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37289512

RESUMEN

Relationship closeness determines the propensity to spontaneously reproduce another's emotional and physiological stress response. We investigated whether psychosocial stress in mothers is causally linked to such empathic stress in children. Mothers (N = 76) completed either a standardized laboratory stressor or a stress-free control task, while their middle childhood-aged children (8-12 years old) were watching. Mother-child dyads simultaneously provided multiple cortisol, heart-rate, high-frequency heart-rate variability (HF-HRV), and subjective stress samples. We found that stress-group children had a greater propensity to show physiologically significant cortisol release, especially boys. Watching stressed mothers also triggered stronger subjective, state empathy, and HF-HRV stress responses, with the latter relying on elevated trait cognitive empathy ratings. Only in the stressed dyads, children's HF-HRV resonated with those of their mothers'. We conclude that young children, although only mildly stressed, spontaneously reproduce maternal stress. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

14.
Sci Rep ; 13(1): 7908, 2023 05 16.
Artículo en Inglés | MEDLINE | ID: mdl-37193767

RESUMEN

Practicing mindfulness is associated with stress reduction and with positive effects in the context of learning and teaching. Although effects on student populations have been studied extensively, there are few studies implementing mindfulness exercises in university courses directly. For this reason, we aimed to investigate whether the use of a brief mindfulness exercise in regular university courses, guided by the lecturers, is feasible and has immediate effects on the students' mental states. We conducted a preregistered multicenter study with one observational arm, following an ABAB design. In total, N = 325 students from 19 different university courses were included at baseline and n = 101 students at post measurement. Students were recruited by N = 14 lecturers located in six different universities in Germany. Lecturers started their courses either by guiding a brief mindfulness exercise (intervention condition) or as they regularly would, with no such exercise (control condition). In both conditions, the mental states of students and lecturers were assessed. Over the semester, n = 1193 weekly observations from students and n = 160 observations from lecturers were collected. Intervention effects were analyzed with linear mixed-effects models. The brief mindfulness exercise, compared to no such exercise, was associated with lower stress composite scores, higher presence composite scores, higher motivation for the courses, as well as better mood in students. Effects persisted throughout a respective course session. Lecturers also reported positive effects of instructing mindfulness. Implementing a brief mindfulness exercise in regular university teaching sessions is feasible and has positive effects on both students and lecturers.


Asunto(s)
Atención Plena , Humanos , Universidades , Estudios de Factibilidad , Estudiantes , Ejercicios Respiratorios
15.
Bipolar Disord ; 25(7): 540-553, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37248623

RESUMEN

BACKGROUND: Functional magnetic resonance imaging studies on emotion processing in patients with bipolar disorder (BD) show hyperactivity of limbic-striatal brain areas and hypoactivity in inferior frontal areas compared to healthy participants. However, heterogeneous results in patients with different disease states and different valences of emotional stimuli have been identified. METHODS: To integrate previous results and elucidate the impact of disease state and stimulus valence, we conducted a systematic literature search for journal articles in the Web of Science Core Collection including MEDLINE databases and employed a coordinate-based-meta-analysis of functional-MRI studies comparing emotion processing in BD-patients with healthy participants using seed-based d mapping (SDM) to test for between-subjects-effects. We included 31 studies published before 11/2022 with a total of N = 766 BD-patients and N = 836 controls. RESULTS: Patients with BD showed hyperactivated regions involved in salience processing of emotional stimuli (e.g., the bilateral insula) and hypoactivation of regions associated with emotion regulation (e.g., inferior frontal gyrus) during emotion processing, compared to healthy participants. A more detailed descriptive analysis revealed a hypoactive (anterior) insula in manic BD-patients specifically for negative in comparison to positive emotion processing. DISCUSSION: This meta-analysis corroborates the overall tenor of existing literature that patients with BD show an increased emotional reactivity (hyperactivity of salience-processing regions) together with a lower (cognitive) control (hypoactivity of brain areas associated with emotion regulation) over emotional states. Our analysis suggests reduced interoceptive processing of negative stimuli in mania, pointing out the need for longitudinal within-subject analyses of emotion processing.


Asunto(s)
Trastorno Bipolar , Humanos , Emociones/fisiología , Encéfalo , Corteza Prefrontal , Mapeo Encefálico , Imagen por Resonancia Magnética/métodos
16.
Transl Psychiatry ; 13(1): 170, 2023 05 19.
Artículo en Inglés | MEDLINE | ID: mdl-37202406

RESUMEN

Repeated hospitalizations are a characteristic of severe disease courses in patients with affective disorders (PAD). To elucidate how a hospitalization during a nine-year follow-up in PAD affects brain structure, a longitudinal case-control study (mean [SD] follow-up period 8.98 [2.20] years) was conducted using structural neuroimaging. We investigated PAD (N = 38) and healthy controls (N = 37) at two sites (University of Münster, Germany, Trinity College Dublin, Ireland). PAD were divided into two groups based on the experience of in-patient psychiatric treatment during follow-up. Since the Dublin-patients were outpatients at baseline, the re-hospitalization analysis was limited to the Münster site (N = 52). Voxel-based morphometry was employed to examine hippocampus, insula, dorsolateral prefrontal cortex and whole-brain gray matter in two models: (1) group (patients/controls)×time (baseline/follow-up) interaction; (2) group (hospitalized patients/not-hospitalized patients/controls)×time interaction. Patients lost significantly more whole-brain gray matter volume of superior temporal gyrus and temporal pole compared to HC (pFWE = 0.008). Patients hospitalized during follow-up lost significantly more insular volume than healthy controls (pFWE = 0.025) and more volume in their hippocampus compared to not-hospitalized patients (pFWE = 0.023), while patients without re-hospitalization did not differ from controls. These effects of hospitalization remained stable in a smaller sample excluding patients with bipolar disorder. PAD show gray matter volume decline in temporo-limbic regions over nine years. A hospitalization during follow-up comes with intensified gray matter volume decline in the insula and hippocampus. Since hospitalizations are a correlate of severity, this finding corroborates and extends the hypothesis that a severe course of disease has detrimental long-term effects on temporo-limbic brain structure in PAD.


Asunto(s)
Trastorno Bipolar , Imagen por Resonancia Magnética , Humanos , Estudios de Casos y Controles , Imagen por Resonancia Magnética/métodos , Encéfalo/diagnóstico por imagen , Sustancia Gris/diagnóstico por imagen , Trastorno Bipolar/diagnóstico por imagen , Hospitalización
17.
Front Psychiatry ; 14: 1038051, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37124270

RESUMEN

Research over the past decades has revealed a variety of beneficial effects of meditation training. These beneficial effects span the levels of health and well-being, cognition, emotion, and social behavior. Around the same time, sociologists have shown that traits and outcomes on the individual level have the potential to spread in communities over three or more degrees. This means, for example, that changes can spread from one person to the next, and on to yet another person. Here, we propose that meditation-induced changes may likewise spread through the social networks of meditation practitioners. Such spreading may happen by positively influencing others through prosocial actions, improved cognitive functioning, and increased positive affect. Positive affective states and their underlying physiological correlates may also be shared in the literal sense. We argue that the spreading of positive meditation effects could provide the basis for collective responses to some of the urgent challenges we face in our current time and society and call for future meditation research to examine the phenomenon.

18.
Int J Clin Health Psychol ; 23(4): 100388, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37214346

RESUMEN

Objective: There is little knowledge about which types of meditation-based training are effective for alleviating which facets of psychological distress. We investigated shared and specific effects of three meditation-based training programs on distress. Method: 332 healthy adults were assigned to a retest control cohort or to one of three 3-month mental training cohorts including: the cultivation of mindfulness-based attention (Presence), socio-affective skills such as compassion (Affect), or metacognitive skills such as perspective taking (Perspective). A battery of 68 self-reported distress measures was collected. Data were analyzed using machine learning methods, identifying the cohort allocation based on distress change scores. Results: Supporting only specific and not shared alleviation effects, the classifiers identified significantly above chance Presence from Affect and Affect from Perspective, but they did not identify the training cohorts from the retest cohorts. Conclusions: The classifiers revealed stable module-associated distress change profiles, which could help to precisely choose meditation-based interventions to target individuals' specific distress patterns.

19.
Bipolar Disord ; 25(6): 443-456, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-36872645

RESUMEN

OBJECTIVES: To elucidate the relationship between the course of bipolar disorder (BD) and structural brain changes across the life span, we conducted a systematic review of longitudinal imaging studies in adolescent and adult BD patients. METHODS: Eleven studies with 329 BD patients and 277 controls met our PICOS criteria (participants, intervention, comparison, outcome and study design): BD diagnosis based on DSM criteria, natural course of disease, comparison of grey matter changes in BD individuals over ≥1-year interval between scans. RESULTS: The selected studies yielded heterogeneous findings, partly due to varying patient characteristics, data acquisition and statistical models. Mood episodes were associated with greater grey matter loss in frontal brain regions over time. Brain volume decreased or remained stable in adolescent patients, whereas it increased in healthy adolescents. Adult BD patients showed increased cortical thinning and brain structural decline. In particular, disease onset in adolescence was associated with amygdala volume reduction, which was not reported in adult BD. CONCLUSIONS: The evidence collected suggests that the progression of BD impairs adolescent brain development and accelerates structural brain decline across the lifespan. Age-specific changes in amygdala volume in adolescent BD suggest that reduced amygdala volume is a correlate of early onset BD. Clarifying the role of BD in brain development across the lifespan promises a deeper understanding of the progression of BD patients through different developmental episodes.


Asunto(s)
Trastorno Bipolar , Adulto , Adolescente , Humanos , Trastorno Bipolar/diagnóstico por imagen , Sustancia Gris/diagnóstico por imagen , Longevidad , Imagen por Resonancia Magnética , Encéfalo/diagnóstico por imagen
20.
Neurosci Biobehav Rev ; 147: 105080, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36764638

RESUMEN

Empathy and Theory of Mind (ToM) have classically been studied as separate social functions, however, recent advances demonstrate the need to investigate the two in interaction: naturalistic settings often blur the distinction of affect and cognition and demand the simultaneous processing of such different stimulus dimensions. Here, we investigate how empathy and ToM related brain networks interact in contexts wherein multiple cognitive and affective demands must be processed simultaneously. Building on the findings of a recent meta-analysis and hierarchical clustering analysis, we perform meta-analytic connectivity modeling to determine patterns of task-context specific network changes. We analyze 140 studies including classical empathy and ToM tasks, as well as complex social tasks. For studies at the intersection of empathy and ToM, neural co-activation patterns included areas typically associated with both empathy and ToM. Network integration is discussed as a means of combining mechanisms across unique behavioral domains. Such integration may enable adaptive behavior in complex, naturalistic social settings that require simultaneous processing of a multitude of different affective and cognitive information.


Asunto(s)
Empatía , Teoría de la Mente , Humanos , Teoría de la Mente/fisiología , Mapeo Encefálico/métodos , Encéfalo/fisiología , Cognición/fisiología , Imagen por Resonancia Magnética
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