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1.
Fam Process ; 2024 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-38529525

RESUMO

Family conflict is an established predictor of psychopathology in youth. Traditional approaches focus on between-family differences in conflict. Daily fluctuations in conflict within families might also impact psychopathology, but more research is needed to understand how and why. Using 21 days of daily diary data and 6-times a day experience-sampling data (N = 77 participants; mean age = 21.18, SD = 1.75; 63 women, 14 men), we captured day-to-day and within-day fluctuations in family conflict, anger, anxiety, and sadness. Using multilevel models, we find that days of higher-than-usual anger are also days of higher-than-usual family conflict. Examining associations between family conflict and emotions within days, we find that moments of higher-than-usual anger predict higher-than-usual family conflict later in the day. We observe substantial between-family differences in these patterns with implications for psychopathology; youth showing the substantial interplay between family conflict and emotions across time had a more perseverative family conflict and greater trait anxiety. Overall, findings indicate the importance of increases in youth anger for experiences of family conflict during young adulthood and demonstrate how intensive repeated measures coupled with network analytic approaches can capture long-theorized notions of reciprocal processes in daily family life.

2.
Tob Control ; 2023 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-37949653

RESUMO

BACKGROUND: Cigarette smoking continues to be a leading cause of preventable deaths in the USA, in part because the USA has not adopted the WHO Framework Convention on Tobacco Control. One way the tobacco industry counteracts tobacco control policies is by heavily advertising cigarettes at the point of sale in retailers (eg, at the cash register) and by offering discounts on cigarettes. DESIGN: A within-subject experimental design with adults who smoke cigarettes daily (n=281) investigated whether: (1) exposure to images of cigarette promotions in an online experiment is associated with greater cigarette craving relative to viewing images of non-smoking cues, and (2) if exposure to images of point-of-sale cigarette promotions with a discount (vs without) increases cigarette craving. The study also examined how participants' subjective social status (compared with others in the USA) relates to cigarette craving after exposure to images of cigarette promotions with and without a discount. RESULTS: In an online experiment, exposure to images of smoking cues, including point-of-sale cigarette promotions, elicited greater craving relative to non-smoking cues (all p<0.001). In addition, images of promotions with a discount elicited higher levels of craving compared with those without a discount (b=0.09, p=0.001). Although participants with a higher (vs lower) subjective social status craved cigarettes less overall (b=-0.12, p=0.012), there was no difference in their craving between images of promotions with and without a discount, while craving was higher for images of promotions with a discount than without for participants with higher subjective social status (b=0.06, p=0.021). CONCLUSION: Viewing images of point-of-sale cigarette promotions can causally increase cravings to smoke, which may also apply to real-world retail settings that display cigarette promotions. Restricting point-of-sale promotions generally, and discounts specifically, could help reduce cigarette smoking and address tobacco use disparities in the USA.

3.
Sci Rep ; 13(1): 20501, 2023 11 22.
Artigo em Inglês | MEDLINE | ID: mdl-37993522

RESUMO

Evidence on the harms and benefits of social media use is mixed, in part because the effects of social media on well-being depend on a variety of individual difference moderators. Here, we explored potential neural moderators of the link between time spent on social media and subsequent negative affect. We specifically focused on the strength of correlation among brain regions within the frontoparietal system, previously associated with the top-down cognitive control of attention and emotion. Participants (N = 54) underwent a resting state functional magnetic resonance imaging scan. Participants then completed 28 days of ecological momentary assessment and answered questions about social media use and negative affect, twice a day. Participants who spent more than their typical amount of time on social media since the previous time point reported feeling more negative at the present moment. This within-person temporal association between social media use and negative affect was mainly driven by individuals with lower resting state functional connectivity within the frontoparietal system. By contrast, time spent on social media did not predict subsequent affect for individuals with higher frontoparietal functional connectivity. Our results highlight the moderating role of individual functional neural connectivity in the relationship between social media and affect.


Assuntos
Mídias Sociais , Humanos , Mapeamento Encefálico , Encéfalo/diagnóstico por imagem , Emoções , Imageamento por Ressonância Magnética/métodos , Afeto , Vias Neurais
4.
Proc Natl Acad Sci U S A ; 120(44): e2313175120, 2023 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-37871199

RESUMO

Information sharing influences which messages spread and shape beliefs, behavior, and culture. In a preregistered neuroimaging study conducted in the United States and the Netherlands, we demonstrate replicability, predictive validity, and generalizability of a brain-based prediction model of information sharing. Replicating findings in Scholz et al., Proc. Natl. Acad. Sci. U.S.A. 114, 2881-2886 (2017), self-, social-, and value-related neural signals in a group of individuals tracked the population sharing of US news articles. Preregistered brain-based prediction models trained on Scholz et al. (2017) data proved generalizable to the new data, explaining more variance in population sharing than self-report ratings alone. Neural signals (versus self-reports) more reliably predicted sharing cross-culturally, suggesting that they capture more universal psychological mechanisms underlying sharing behavior. These findings highlight key neurocognitive foundations of sharing, suggest potential target mechanisms for interventions to increase message effectiveness, and advance brain-as-predictor research.


Assuntos
Mapeamento Encefálico , Encéfalo , Humanos , Estados Unidos , Mapeamento Encefálico/métodos , Disseminação de Informação , Neuroimagem , Cabeça
5.
Sci Rep ; 13(1): 12045, 2023 07 25.
Artigo em Inglês | MEDLINE | ID: mdl-37491371

RESUMO

Modifying behaviors, such as alcohol consumption, is difficult. Creating psychological distance between unhealthy triggers and one's present experience can encourage change. Using two multisite, randomized experiments, we examine whether theory-driven strategies to create psychological distance-mindfulness and perspective-taking-can change drinking behaviors among young adults without alcohol dependence via a 28-day smartphone intervention (Study 1, N = 108 participants, 5492 observations; Study 2, N = 218 participants, 9994 observations). Study 2 presents a close replication with a fully remote delivery during the COVID-19 pandemic. During weeks when they received twice-a-day intervention reminders, individuals in the distancing interventions reported drinking less frequently than on control weeks-directionally in Study 1, and significantly in Study 2. Intervention reminders reduced drinking frequency but did not impact amount. We find that smartphone-based mindfulness and perspective-taking interventions, aimed to create psychological distance, can change behavior. This approach requires repeated reminders, which can be delivered via smartphones.


Assuntos
Alcoolismo , COVID-19 , Humanos , Adulto Jovem , Consumo de Bebidas Alcoólicas/prevenção & controle , Consumo de Bebidas Alcoólicas/psicologia , Alcoolismo/prevenção & controle , Alcoolismo/psicologia , COVID-19/epidemiologia , COVID-19/prevenção & controle , Pandemias , Distância Psicológica
6.
Soc Cogn Affect Neurosci ; 18(1)2023 04 11.
Artigo em Inglês | MEDLINE | ID: mdl-36869716

RESUMO

Online sharing impacts which information is widely available and influential in society. Yet, systematically influencing sharing behavior remains difficult. Past research highlights two factors associated with sharing: the social and self-relevance of the to-be-shared content. Based on this prior neuroimaging work and theory, we developed a manipulation in the form of short prompts that are attached to media content (here health news articles). These prompts encourage readers to think about how sharing the content may help them to fulfill motivations to present themselves positively (self-relevance) or connect positively to others (social relevance). Fifty-three young adults completed this pre-registered experiment while undergoing functional magnetic resonance imaging. Ninety-six health news articles were randomly assigned to three within-subject conditions that encouraged self-related or social thinking or a control. Invoking self-related or social thoughts about health-related news (vs control) (i) causally increased brain activity in a priori regions of interest chosen for their roles in processing social and self-relevance and (ii) causally impacted self-reported sharing intentions. This study provides evidence corroborating prior reverse inferences regarding the neural correlates of sharing. It further highlights the feasibility and utility of targeting neuropsychological processes to systematically facilitate online information spread.


Assuntos
Encéfalo , Disseminação de Informação , Humanos , Adulto Jovem , Disseminação de Informação/métodos , Intenção , Motivação , Autorrelato
7.
Psychosom Med ; 85(2): 141-153, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36728904

RESUMO

OBJECTIVE: A holistic understanding of the naturalistic dynamics among physical activity, sleep, emotions, and purpose in life as part of a system reflecting wellness is key to promoting well-being. The main aim of this study was to examine the day-to-day dynamics within this wellness system. METHODS: Using self-reported emotions (happiness, sadness, anger, anxiousness) and physical activity periods collected twice per day, and daily reports of sleep and purpose in life via smartphone experience sampling, more than 28 days as college students ( n = 226 young adults; mean [standard deviation] = 20.2 [1.7] years) went about their daily lives, we examined day-to-day temporal and contemporaneous dynamics using multilevel vector autoregressive models that consider the network of wellness together. RESULTS: Network analyses revealed that higher physical activity on a given day predicted an increase of happiness the next day. Higher sleep quality on a given night predicted a decrease in negative emotions the next day, and higher purpose in life predicted decreased negative emotions up to 2 days later. Nodes with the highest centrality were sadness, anxiety, and happiness in the temporal network and purpose in life, anxiety, and anger in the contemporaneous network. CONCLUSIONS: Although the effects of sleep and physical activity on emotions and purpose in life may be shorter term, a sense of purpose in life is a critical component of wellness that can have slightly longer effects, bleeding into the next few days. High-arousal emotions and purpose in life are central to motivating people into action, which can lead to behavior change.


Assuntos
Emoções , Sono , Adulto Jovem , Humanos , Autorrelato , Exercício Físico , Estudantes
8.
Biol Psychiatry ; 93(8): 681-689, 2023 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-36797176

RESUMO

Together, data from brain scanners and smartphones have sufficient coverage of biology, psychology, and environment to articulate between-person differences in the interplay within and across biological, psychological, and environmental systems thought to underlie psychopathology. An important next step is to develop frameworks that combine these two modalities in ways that leverage their coverage across layers of human experience to have maximum impact on our understanding and treatment of psychopathology. We review literature published in the last 3 years highlighting how scanners and smartphones have been combined to date, outline and discuss the strengths and weaknesses of existing approaches, and sketch a network science framework heretofore underrepresented in work combining scanners and smartphones that can push forward our understanding of health and disease.


Assuntos
Psiquiatria , Smartphone , Humanos , Psicopatologia , Encéfalo/diagnóstico por imagem
9.
Dev Cogn Neurosci ; 60: 101215, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36841181

RESUMO

Social influence affects us throughout our lives, shaping our attitudes, behaviors, and preferences. Thus, the current study aimed to examine whether key age groups (adolescence versus young adulthood) were associated with differences in neural correlates associated with processing social feedback and conformity (i.e., conflict detection, positive valuation, and mentalizing) among young men. We recruited 153 participants across 5 studies, who completed a social influence task during an fMRI scan. Overall, participants were more likely to conform by changing their ratings when misaligned with others, and adolescents were more likely to conform when misaligned (compared to aligned) with others compared to young adults. Further, we found that adolescents showed increased activity in mentalizing (TPJ, dmPFC) and positive valuation regions (VS, vmPFC), compared to young adults, in response to misalignment with others. In contrast, young adults showed increased activity in conflict detection regions (AI, dACC) when exposed to feedback that they were misaligned with others and when conforming to that feedback. Overall, our results offer initial evidence that adolescent and young adult men engage different neural processes when they find out they are misaligned with others and when conforming to the recommendations of others, and this difference appears to track with brain responses in conflict detection, mentalizing and value regions. DATA STATEMENT: Raw data and analysis codes are available upon request.


Assuntos
Encéfalo , Comportamento Social , Masculino , Humanos , Adulto Jovem , Adolescente , Adulto , Encéfalo/fisiologia , Mapeamento Encefálico , Atitude , Imageamento por Ressonância Magnética
10.
Proc Natl Acad Sci U S A ; 120(2): e2201074119, 2023 01 10.
Artigo em Inglês | MEDLINE | ID: mdl-36595675

RESUMO

Mindful attention is characterized by acknowledging the present experience as a transient mental event. Early stages of mindfulness practice may require greater neural effort for later efficiency. Early effort may self-regulate behavior and focalize the present, but this understanding lacks a computational explanation. Here we used network control theory as a model of how external control inputs-operationalizing effort-distribute changes in neural activity evoked during mindful attention across the white matter network. We hypothesized that individuals with greater network controllability, thereby efficiently distributing control inputs, effectively self-regulate behavior. We further hypothesized that brain regions that utilize greater control input exhibit shorter intrinsic timescales of neural activity. Shorter timescales characterize quickly discontinuing past processing to focalize the present. We tested these hypotheses in a randomized controlled study that primed participants to either mindfully respond or naturally react to alcohol cues during fMRI and administered text reminders and measurements of alcohol consumption during 4 wk postscan. We found that participants with greater network controllability moderated alcohol consumption. Mindful regulation of alcohol cues, compared to one's own natural reactions, reduced craving, but craving did not differ from the baseline group. Mindful regulation of alcohol cues, compared to the natural reactions of the baseline group, involved more-effortful control of neural dynamics across cognitive control and attention subnetworks. This effort persisted in the natural reactions of the mindful group compared to the baseline group. More-effortful neural states had shorter timescales than less effortful states, offering an explanation for how mindful attention promotes being present.


Assuntos
Atenção Plena , Autocontrole , Humanos , Atenção/fisiologia , Encéfalo/diagnóstico por imagem , Fissura
11.
J Exp Psychol Gen ; 152(1): 253-267, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35951378

RESUMO

Information sharing within social networks can catalyze widespread attitudinal and behavioral change and the chance to share information with others has been characterized as inherently valuable to people. But what are the sources of value and how might they be leveraged to promote sharing? We test ideas from the value-based virality model that the value of sharing increases when people perceive messages as more relevant to themselves and to people they know, resulting in stronger intentions to share. We extend this work by considering how sharing context-broadcasting to a wide audience or narrowcasting directly to someone-may alter these relationships. Six online studies with adults in the United States (N participants = 3,727; messages = 362; message ratings = 30,954) showed robust evidence that self and social relevance are positively and uniquely related to sharing intentions within- and between-person. Specification curve analysis showed these relationships were consistent across message content (COVID-19, voting, general health, climate change), medium (social media post and news articles), and sharing context (broad- and narrowcasting). A preregistered experiment showed that manipulating the self and social relevance of messages through a framing manipulation causally increased sharing intentions. These causal effects were mediated by changes in both self and social relevance, but the relative strength of the causal pathways differed depending on sharing context. These findings extend existing models of information sharing, and highlight self and social relevance as psychological mechanisms that motivate information sharing that can be targeted to promote sharing across contexts. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
COVID-19 , Mídias Sociais , Adulto , Humanos , Intenção , Disseminação de Informação , Política
12.
Biol Psychiatry Glob Open Sci ; 2(4): 432-439, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36324655

RESUMO

Background: The waxing and waning of negative affect in daily life is normative, reflecting an adaptive capacity to respond flexibly to changing circumstances. However, understanding of the brain structure correlates of affective variability in naturalistic settings has been limited. Using network control theory, we examine facets of brain structure that may enable negative affect variability in daily life. Methods: We used diffusion-weighted imaging data from 95 young adults (age [in years]: mean = 20.19, SD = 1.80; 56 women) to construct structural connectivity networks that map white matter fiber connections between 200 cortical and 14 subcortical regions. We applied network control theory to these structural networks to estimate the degree to which each brain region's pattern of structural connectivity facilitates the spread of activity to other brain systems. We examined how the average controllability of functional brain systems relates to negative affect variability, computed by taking the standard deviation of negative affect self-reports collected via smartphone-based experience sampling twice per day over 28 days as participants went about their daily lives. Results: We found that high average controllability of the cingulo-insular system is associated with increased negative affect variability. We also found that greater negative affect variability is related to the presence of more depressive symptoms, yet average controllability of the cingulo-insular system was not associated with depressive symptoms. Conclusions: Our results highlight the role that brain structure plays in affective dynamics as observed in the context of daily life, suggesting that average controllability of the cingulo-insular system promotes normative negative affect variability.

13.
Soc Personal Psychol Compass ; 16(10): e12707, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36407123

RESUMO

Social neuroscience combines tools and perspectives from social psychology and neuroscience to understand how people interact with their social world. Here we discuss a relatively new method-hyperscanning-to study real-time, interactive social interactions using functional magnetic resonance imaging (fMRI). We highlight three contributions that fMRI hyperscanning makes to the study of the social mind: (1) Naturalism: it shifts the focus from tightly-controlled stimuli to more naturalistic social interactions; (2) Multi-person Dynamics: it shifts the focus from individuals as the unit of analysis to dyads and groups; and (3) Neural Resolution: fMRI hyperscanning captures high-resolution neural patterns and dynamics across the whole brain, unlike other neuroimaging hyperscanning methods (e.g., electroencephalogram, functional near-infrared spectroscopy). Finally, we describe the practical considerations and challenges that fMRI hyperscanning researchers must navigate. We hope researchers will harness this powerful new paradigm to address pressing questions in today's society.

14.
Affect Sci ; 3(1): 5-13, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36046097

RESUMO

Linguistic racism shapes the psychological antecedents of code switching and its consequences for Black people and other people of color. We highlight mentalizing as an antecedent of code switching. We posit that stereotype threat arises in contexts where racism is salient, prompting scrutiny of others' mental states (i.e., mentalizing) when making choices about linguistic self-presentation. Additionally, we posit that sustained appraisals of stereotype threat add cognitive load and reinforce self-protective code switching. We highlight potential consequences of linguistic racism for Black people and other people of color, including reduced opportunities for authentic self-presentation, increased emotional effort, and stress. Finally, we outline paths forward for research and practice: (1) recognizing the heterogeneity of language and thereby reducing linguistic racism, (2) implementing changes that promote racially affirming environments that reduce demands for self-protective code switching, and (3) adapting and creating scalable psychometric tools to measure linguistic choices and linguistic racism.

15.
Addiction ; 117(12): 3049-3057, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35915548

RESUMO

BACKGROUND AND AIM: Alcohol craving is an urge to consume alcohol that commonly precedes drinking; however, craving does not lead to drinking for all people under all circumstances. The current study measured the correlation between neural reactivity and alcohol cues as a risk, and purpose in daily life as a protective factor that may influence the link between alcohol craving and the subsequent amount of consumption. DESIGN: Observational study that correlated functional magnetic resonance imaging (fMRI) data on neural cue reactivity and ecological momentary assessments (EMA) on purpose in life and alcohol use. SETTING: Two college campuses in the United States. PARTICIPANTS: A total of 54 college students (37 women, 16 men, and 1 other) recruited via campus-based groups from January 2019 to October 2020. MEASUREMENTS: Participants underwent fMRI while viewing images of alcohol; we examined activity within the ventral striatum, a key region of interest implicated in reward and craving. Participants then completed 28 days of EMA and answered questions about daily levels of purpose in life and alcohol use, including how much they craved and consumed alcohol. FINDINGS: A significant three-way interaction indicated that greater alcohol cue reactivity within the ventral striatum was associated with heavier alcohol use following craving in daily life only when people were previously feeling a lower than usual sense of purpose. By contrast, individuals with heightened neural alcohol cue reactivity drank less in response to craving if they were feeling a stronger than their usual sense of purpose in the preceding moments (binteraction = -0.086, P < 0.001, 95% CI = -0.137, -0.035). CONCLUSIONS: Neural sensitivity to alcohol cues within the ventral striatum appears to be a potential risk for increased alcohol use in social drinkers, when people feel less purposeful. Enhancing daily levels of purpose in life may promote alcohol moderation among social drinkers who show relatively higher reactivity to alcohol cues.


Assuntos
Consumo de Bebidas Alcoólicas , Sinais (Psicologia) , Masculino , Humanos , Feminino , Fissura/fisiologia , Etanol , Condicionamento Psicológico
16.
Health Psychol ; 41(9): 611-620, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36006700

RESUMO

OBJECTIVE: Modifiable behaviors, including physical activity and sedentary behavior, are important determinants of health, and messages are important tools for influencing these behaviors. Functional neuroimaging research suggests that activity in regions of the brain's default mode and salience systems are independently associated with attending to health promoting messages. However, it remains unclear how these brain systems interact during exposure to persuasive messages and how this interaction relates to subsequent behavior change. Here, we examine how between-person differences in the relative integration between default mode and salience systems while viewing health messages relates to changes in health behavior. METHOD: Using wrist-worn accelerometers, we logged physical activity in 150 participants (mean age = 33.17 years, 64% women; 43% Black, 37% white, 7% Asian, 5% Hispanic, and 8% other) continuously for an average of 10 days. Participants then viewed health messages encouraging physical activity while undergoing functional MRI (fMRI) and completed an additional month where physical activity was logged and the health messages were reinforced with daily text reminders. RESULTS: Individuals with higher default mode and salience system integration during health message exposure were more likely to decrease their sedentary behavior and increase light physical activity in the month following fMRI than participants with lower brain integration. CONCLUSIONS: Interactions between the salience and default mode systems are associated with message receptivity and subsequent behavior change, highlighting the value of expanding the focus from the role of single brain regions in studying health behavior change to larger-scale connectivity. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Encéfalo , Comportamentos Relacionados com a Saúde , Adulto , Encéfalo/diagnóstico por imagem , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Comunicação Persuasiva , Comportamento Sedentário
17.
Soc Sci Med ; 299: 114870, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35286848

RESUMO

RATIONAL: Overcoming the COVID-19 pandemic requires large-scale cooperation and behavior change on an unprecedented scale. Individuals can help reduce the burden of the pandemic by participating in behaviors that benefit people whose life circumstances make them especially vulnerable. OBJECTIVE: We tested the effect of reading narrative (i.e., story-like) as opposed to expository (i.e., factual recounting) messages on beliefs about protecting others in groups vulnerable during the pandemic through increased message transportation (i.e. immersing the reader into the story). Additionally, we examined if reading narratives, as opposed to expository messages, increased intentions to engage in prosocial behaviors that benefit these groups through increased transportation. METHODS: The study used a between-subjects design where participants either read narrative or expository messages about the experiences of people who were at greater exposure to SARS-CoV-2 due to social and political factors, namely people who were incarcerated or working in healthcare during the onset of the COVID-19 pandemic. RESULTS: In line with pre-registered hypotheses, participants in the narrative (vs. expository) condition reported greater transportation into the message. We also observed indirect effects of narrative (vs. expository) messages, through increased message transportation, on: (1) beliefs that by physical distancing, one can protect vulnerable people (2) beliefs that members of the target groups (i.e., healthcare workers and people who are incarcerated), were vulnerable during the pandemic, (3) intentions to engage in prosocial behaviors that help family and friends, and (4) intentions to engage in prosocial behaviors that help members of vulnerable groups. CONCLUSION: Together these results suggest that narratives can be used to motivate prosocial action during the COVID-19 pandemic to the extent that the narratives elicit transportation.


Assuntos
COVID-19 , Prisioneiros , Pessoal de Saúde , Comportamento de Ajuda , Humanos , Pandemias , SARS-CoV-2
18.
Sci Rep ; 12(1): 260, 2022 01 07.
Artigo em Inglês | MEDLINE | ID: mdl-34997113

RESUMO

Response inhibition and socioeconomic status (SES) are critical predictors of many important outcomes, including educational attainment and health. The current study extends our understanding of SES and cognition by examining brain activity associated with response inhibition, during the key developmental period of adolescence. Adolescent males (N = 81), aged 16-17, completed a response inhibition task while undergoing fMRI brain imaging and reported on their parents' education, one component of socioeconomic status. A region of interest analysis showed that parental education was associated with brain activation differences in the classic response inhibition network (right inferior frontal gyrus + subthalamic nucleus + globus pallidus) despite the absence of consistent parental education-performance effects. Further, although activity in our main regions of interest was not associated with performance differences, several regions that were associated with better inhibitory performance (ventromedial prefrontal cortex, middle frontal gyrus, middle temporal gyrus, amygdala/hippocampus) also differed in their levels of activation according to parental education. Taken together, these results suggest that individuals from households with higher versus lower parental education engage key brain regions involved in response inhibition to differing degrees, though these differences may not translate into performance differences.


Assuntos
Comportamento do Adolescente , Desenvolvimento do Adolescente , Ondas Encefálicas , Encéfalo/fisiologia , Escolaridade , Pai/educação , Inibição Psicológica , Mães/educação , Classe Social , Adolescente , Fatores Etários , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Vias Neurais/fisiologia , Testes Neuropsicológicos , Tempo de Reação
19.
Cereb Cortex ; 32(6): 1131-1141, 2022 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-34398230

RESUMO

Self-reflection and thinking about the thoughts and behaviors of others are important skills for humans to function in the social world. These two processes overlap in terms of the component processes involved, and share overlapping functional organizations within the human brain, in particular within the medial prefrontal cortex (MPFC). Several functional models have been proposed to explain these two processes, but none has directly explored the extent to which they are distinctly represented within different parts of the brain. This study used multivoxel pattern classification to quantify the separability of self- and other-related thought in the MPFC and expanded this question to the entire brain. Using a large-scale mega-analytic dataset, spanning three separate studies (n = 142), we find that self- and other-related thought can be reliably distinguished above chance within the MPFC, posterior cingulate cortex and temporal lobes. We highlight subcomponents of the ventral MPFC that are particularly important in representing self-related thought, and subcomponents of the orbitofrontal cortex robustly involved in representing other-related thought. Our findings indicate that representations of self- and other-related thought in the human brain are described best by a distributed pattern rather than stark localization or a purely ventral to dorsal linear gradient in the MPFC.


Assuntos
Encéfalo , Córtex Pré-Frontal , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Giro do Cíngulo , Humanos , Imageamento por Ressonância Magnética , Córtex Pré-Frontal/diagnóstico por imagem , Autoimagem , Lobo Temporal
20.
Gerontologist ; 61(6): 878-887, 2021 08 13.
Artigo em Inglês | MEDLINE | ID: mdl-34125195

RESUMO

BACKGROUND AND OBJECTIVES: Social distancing, while effective in slowing the spread of the coronavirus disease 2019 (COVID-19), can increase social isolation. The current preregistered study examined purpose in life as a psychological resource that may buffer against loneliness and increase intentions to engage in health-protective behaviors. RESEARCH DESIGN AND METHODS: During the COVID-19 pandemic, 517 adults (mean = 37.71, SD = 11.30; range = 19-73) reported their levels of purpose in life, current and prepandemic levels of loneliness, and degrees to which they intended to engage in behaviors known to prevent the spread of COVID-19. RESULTS: Across age, having a stronger sense of purpose in life was associated with lower loneliness, as well as greater intentions to engage in COVID-protective behaviors. Higher loneliness was associated with lower intentions to maintain social distance and engage in additional health promotion behaviors such as handwashing. However, this link was not present at higher levels of purpose in life. Older age was also associated with less loneliness, but not for individuals with lower levels of purpose in life. DISCUSSION AND IMPLICATIONS: Results suggest that psychological resources such as purpose in life are associated with increased protective health behaviors. Furthermore, purpose in life may reduce loneliness and counteract the negative effects of stressors that diminish the willingness to engage in health-protective behaviors. Our data also highlight resilience among older individuals in times of isolation during a global pandemic.


Assuntos
COVID-19 , Pandemias , Idoso , Comportamentos Relacionados com a Saúde , Humanos , Solidão , SARS-CoV-2
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