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1.
AIDS Behav ; 28(3): 854-867, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37751109

RESUMO

Numerous contextual factors contribute to risky sexual decision-making among men who have sex with men (MSM), with experimental laboratory-based studies suggesting that alcohol consumption, sexual arousal, and partner familiarity have the potential to impact condom negotiations during sexual encounters. The purpose of the current study was to extend this line of inquiry outside of the laboratory and into the everyday lives of MSM. We collected six weeks of daily data on alcohol consumption and sexual behaviors from 257 moderate- and heavy-drinking MSM to examine the within- and between-subjects effects of alcohol consumption, average daily sexual arousal, and partner familiarity on condom negotiation processes during sexual encounters. We hypothesized that alcohol consumption, higher levels of average daily sexual arousal, and greater partner familiarity would all contribute to a reduced likelihood of condom negotiation prior to sexual activity, and that they would also affect the difficulty of negotiations. Contrary to hypotheses, none of these three predictors had significant within-subjects effects on condom negotiation outcomes. However, partner familiarity and average daily sexual arousal did exert significant between-subjects effects on the incidence of negotiation and negotiation difficulty. These findings have important implications for risk-reduction strategies in this population. They also highlight the challenges of reconciling results from experimental laboratory research and experience sampling conducted outside of the laboratory on sexual risk behavior.


Assuntos
Infecções por HIV , Minorias Sexuais e de Gênero , Masculino , Humanos , Preservativos , Homossexualidade Masculina , Negociação , Excitação Sexual , Avaliação Momentânea Ecológica , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Comportamento Sexual , Etanol/farmacologia , Consumo de Bebidas Alcoólicas/epidemiologia , Parceiros Sexuais
2.
J Neurol Phys Ther ; 47(3): 146-154, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-37016469

RESUMO

BACKGROUND AND PURPOSE: Few persons with Parkinson disease (PD) appear to engage in moderate-intensity walking associated with disease-modifying health benefits. How much time is spent walking at lower, yet still potentially beneficial, intensities is poorly understood. The purpose of this exploratory, observational study was to describe natural walking intensity in ambulatory persons with PD. METHODS: Accelerometer-derived real-world walking data were collected for more than 7 days at baseline from 82 participants enrolled in a PD clinical trial. Walking intensity was defined according to the number of steps in each active minute (1-19, 20-39, 40-59, 60-79, 80-99, or ≥100 steps). Daily minutes of walking and duration of the longest sustained walking bout were calculated at each intensity. Number of sustained 10 to 19, 20 to 29, and 30-minute bouts and greater at any intensity also were calculated. Values were analyzed in the context of physical activity guidelines. RESULTS: Most daily walking occurred at lower intensities (157.3 ± 58.1 min of 1-19 steps; 81.3 ± 32.6 min of 20-39 steps; 38.2 ± 21.3 min of 40-59 steps; 15.1 ± 11.5 min of 60-79 steps; 7.4 ± 7.0 min of 80-99 steps; 7.3 ± 9.6 min of ≥100 steps). The longest daily sustained walking bout occurred at the lowest intensity level (15.9 ± 5.2 min of 1-19 steps). Few bouts lasting 20 minutes and greater occurred at any intensity. DISCUSSION AND CONCLUSIONS: Despite relatively high daily step counts, participants tended to walk at remarkably low intensity, in bouts of generally short duration, with relatively few instances of sustained walking. The findings reinforced the need for health promotion interventions designed specifically to increase walking intensity.Video Abstract available for more insight from authors (see the Video, Supplemental Digital Content 1 available at: http://links.lww.com/JNPT/A426 ).


Assuntos
Doença de Parkinson , Humanos , Caminhada , Exercício Físico , Promoção da Saúde , Fatores de Tempo
3.
J Int Neuropsychol Soc ; 28(4): 401-413, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-33998438

RESUMO

OBJECTIVES: The prevalence of neurodegenerative disorders demands methods of accessible assessment that reliably captures cognition in daily life contexts. We investigated the feasibility of smartphone cognitive assessment in people with Parkinson's disease (PD), who may have cognitive impairment in addition to motor-related problems that limit attending in-person clinics. We examined how daily-life factors predicted smartphone cognitive performance and examined the convergent validity of smartphone assessment with traditional neuropsychological tests. METHODS: Twenty-seven nondemented individuals with mild-moderate PD attended one in-lab session and responded to smartphone notifications over 10 days. The smartphone app queried participants 5x/day about their location, mood, alertness, exercise, and medication state and administered mobile games of working memory and executive function. RESULTS: Response rate to prompts was high, demonstrating feasibility of the approach. Between-subject reliability was high on both cognitive games. Within-subject variability was higher for working memory than executive function. Strong convergent validity was seen between traditional tests and smartphone working memory but not executive function, reflecting the latter's ceiling effects. Participants performed better on mobile working memory tasks when at home and after recent exercise. Less self-reported daytime sleepiness and lower PD symptom burden predicted a stronger association between later time of day and higher smartphone test performance. CONCLUSIONS: These findings support feasibility and validity of repeat smartphone assessments of cognition and provide preliminary evidence of the effects of context on cognitive variability in PD. Further development of this accessible assessment method could increase sensitivity and specificity regarding daily cognitive dysfunction for PD and other clinical populations.


Assuntos
Disfunção Cognitiva , Aplicativos Móveis , Doença de Parkinson , Jogos de Vídeo , Cognição/fisiologia , Disfunção Cognitiva/diagnóstico , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/psicologia , Estudos de Viabilidade , Humanos , Testes Neuropsicológicos , Doença de Parkinson/complicações , Doença de Parkinson/psicologia , Reprodutibilidade dos Testes , Smartphone
4.
J Ment Health ; 31(3): 366-373, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34304675

RESUMO

BACKGROUND: Reduced efforts to form and maintain social bonds can exist in the context of a sufficient desire for social connection. Thus, social impairment common across many psychiatric conditions may often reflect failures in social effort exertion, despite normative levels of social liking and wanting. Although there are many questionnaires available that assess sociability, desire, or lack thereof for connection and perceived social support, there is no current self-report assessment of the behavioral outputs of social motivation. AIMS: We aimed to develop and validate a measure of the social effort in college students and the general population. METHODS: College students (n = 981) and a broader sample of adults via Amazon's Mechanical Turk (MTurk; n = 506) participated in the study. RESULTS: We identified two factors that represented content related to general social effort and social effort in adherence with social norms; we named the measure the Social Effort and Conscientiousness Scale (SEACS). Results suggest the SEACS is a reliable and valid measure of social effort. CONCLUSIONS: Lower scores on the SEACS were associated with symptoms of depression and anxiety, highlighting the scale's potential utility in clinical populations. We include a discussion of possible applications of the SEACS, including its further use and application in psychopathology research.


Assuntos
Transtornos de Ansiedade , Motivação , Adulto , Ansiedade , Humanos , Autorrelato , Inquéritos e Questionários
5.
J Neurol Phys Ther ; 45(4): 259-265, 2021 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-34091569

RESUMO

BACKGROUND AND PURPOSE: Walking activity in persons with Parkinson disease (PD) is important for preventing functional decline. The contribution of walking activity to home and community mobility in PD is poorly understood. METHODS: Cross-sectional baseline data (N = 69) were analyzed from a randomized controlled PD trial. The Life-Space Assessment (LSA) quantified the extent, frequency, and independence across 5 expanding levels of home and community mobility, producing individual subscores and a total score. Two additional summed scores were used to represent mobility within (Levels 1-3) and beyond (Levels 4-5) neighborhood limits. An accelerometer measured walking activity for 7 days. Regression and correlation analyses evaluated relationships between daily steps and mobility scores. Mann-Whitney U tests secondarily compared differences in mobility scores between the active and sedentary groups. RESULTS: Walking activity contributed significantly to the summed Level 1-3 score (ß = 0.001, P = 0.004) but not to the summed Level 4-5 (ß = 0.001, P = 0.33) or total (ß = 0.002, P = 0.07) scores. Walking activity was significantly related to Level 1 (ρ = 0.336, P = 0.005), Level 2 (ρ = 0.307, P = 0.010), and Level 3 (ρ = 0.314, P = 0.009) subscores. Only the summed Level 1-3 score (P = 0.030) was significantly different between the active and sedentary groups. DISCUSSION AND CONCLUSIONS: Persons with PD who demonstrated greater mobility beyond the neighborhood were not necessarily more active; walking activity contributed more so to home and neighborhood mobility. Compared with LSA total score, the Level 1-3 summed score may be a more useful participation-level measure for assessing the impact of changes in walking activity.Video Abstract available for more insights from the authors (see the Video, Supplemental Digital Content 1 available at: http://links.lww.com/JNPT/A349).


Assuntos
Doença de Parkinson , Estudos Transversais , Humanos , Caminhada
6.
BMC Neurol ; 20(1): 146, 2020 Apr 20.
Artigo em Inglês | MEDLINE | ID: mdl-32312243

RESUMO

BACKGROUND: Parkinson disease (PD) is a debilitating and chronic neurodegenerative disease resulting in ambulation difficulties. Natural walking activity often declines early in disease progression despite the relative stability of motor impairments. In this study, we propose a paradigm shift with a "connected behavioral approach" that targets real-world walking using cognitive-behavioral training and mobile health (mHealth) technology. METHODS/DESIGN: The Walking and mHealth to Increase Participation in Parkinson Disease (WHIP-PD) study is a twelve-month, dual site, two-arm, randomized controlled trial recruiting 148 participants with early to mid-stage PD. Participants will be randomly assigned to connected behavioral or active control conditions. Both conditions will include a customized program of goal-oriented walking, walking-enhancing strengthening exercises, and eight in-person visits with a physical therapist. Participants in the connected behavioral condition also will (1) receive cognitive-behavioral training to promote self-efficacy for routine walking behavior and (2) use a mHealth software application to manage their program and communicate remotely with their physical therapist. Active control participants will receive no cognitive-behavioral training and manage their program on paper. Evaluations will occur at baseline, three-, six-, and twelve-months and include walking assessments, self-efficacy questionnaires, and seven days of activity monitoring. Primary outcomes will include the change between baseline and twelve months in overall amount of walking activity (mean number of steps per day) and amount of moderate intensity walking activity (mean number of minutes per day in which > 100 steps were accumulated). Secondary outcomes will include change in walking capacity as measured by the six-minute walk test and ten-meter walk test. We also will examine if self-efficacy mediates change in amount of walking activity and if change in amount of walking activity mediates change in walking capacity. DISCUSSION: We expect this study to show the connected behavioral approach will be more effective than the active control condition in increasing the amount and intensity of real-world walking activity and improving walking capacity. Determining effective physical activity interventions for persons with PD is important for preserving mobility and essential for maintaining quality of life. Clinical trials registration NCT03517371, May 7, 2018. TRIAL REGISTRATION: ClinicalTrials.gov: NCT03517371. Date of registration: May 7, 2018. Protocol version: Original.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Terapia por Exercício/métodos , Doença de Parkinson/terapia , Telemedicina/métodos , Humanos , Inquéritos e Questionários , Caminhada/fisiologia
7.
Soc Psychiatry Psychiatr Epidemiol ; 55(12): 1629-1637, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32409882

RESUMO

INTRODUCTION: Diminished motivation (e.g., low drive, curiosity, and engagement in activities) is associated with robust impairment in psychosocial functioning in schizophrenia, yet even the most effective evidence-based interventions rarely effect meaningful change in motivation. Individual Resiliency Training (IRT) is a psychosocial treatment for individuals following a first episode of psychosis, supporting motivation through recovery goal setting and pursuit. The extent to which such an approach might improve motivation over time is unknown. METHOD: We tested the impact of exposure to IRT modules focused on goal setting and attainment on motivation and functional outcomes among participants in the Recovery After an Initial Schizophrenia Episode-Early Treatment Program (RAISE-ETP). In the sample of 404 individuals with a first episode of psychosis receiving treatment across 34 community sites, we ran mixed-effect models with group (exposed to four or more goal-focused IRT sessions vs. Community Care (CC)), time (baseline, six- and 12-month follow-up), and the group-by-time interaction as predictors of motivation, role and social functioning. We also ran these analyses with those exposed to three or fewer goal-focused IRT sessions compared to CC. RESULTS: Controlling for gender, ethnicity, baseline cognition, and total number of outpatient mental health visits, exposure to four or more goal-focused IRT sessions was associated with greater improvements in motivation and role functioning compared to CC; effects were not observed for social functioning. Participants receiving three or fewer goal-focused IRT sessions did not differ from those in CC in these outcomes. Further, sensitivity analysis showed that general exposure to IRT was not associated with differential outcomes. CONCLUSIONS: Findings suggest that sufficient focus on recovery goal setting and support in psychosocial intervention for first-episode psychosis may have specific impact on motivation.


Assuntos
Transtornos Psicóticos , Esquizofrenia , Cognição , Objetivos , Humanos , Motivação , Transtornos Psicóticos/terapia , Esquizofrenia/terapia
8.
Soc Psychiatry Psychiatr Epidemiol ; 55(12): 1593-1606, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32564092

RESUMO

PURPOSE: Research on employment in people with severe mental illnesses (SMI) in developing countries is sparse and largely limited to employment rates. We conducted a comprehensive study of work, interest in work, and perceived benefits and barriers to work in people with SMI in India. METHODS: Semi-structured interviews were conducted with 550 individuals with SMI receiving private psychiatric outpatient services in two districts in western India, one urban (Pune) and the other rural (Ahmednagar). RESULTS: More than half of the participants were employed, with significantly more men working (79.4%) than women (35.9%). Higher rates of work were found in rural areas (77.8%), where most work was in family agricultural businesses, than in urban areas (48.9%), where most work was for independent employers. Participants in rural areas worked fewer hours and earned less money, and reported fewer benefits and fewer problems related to work than urban participants. Over 45% of participants working for independent employers found jobs with help from families and extended social networks. Most unemployed participants wanted to work, and desired a variety of supports, including assistance with job finding and illness management. CONCLUSIONS: Gender-specific social role expectations and families play an important role in work in people with SMI in India. Despite higher rates of work in this sample than most studies from developed countries, a significant subgroup was unemployed but wanted to work. Persons with SMI in developing countries may benefit from the adaptation of validated vocational rehabilitation approaches in developed countries to their cultural context.


Assuntos
Emprego , Transtornos Mentais , Feminino , Humanos , Índia , Masculino , Transtornos Mentais/epidemiologia , Reabilitação Vocacional , Desemprego
9.
Biol Psychiatry ; 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38960019

RESUMO

Digital therapeutics-web-based programs, smartphone applications, and wearable devices designed to prevent, treat, or manage clinical conditions through software-driven, evidence-based intervention-can provide accessible alternatives and/or may supplement standard care for patients with serious mental illnesses (SMI), including schizophrenia. In this paper we provide a targeted summary of the rapidly growing field of digital therapeutics for schizophrenia and related SMI. We first define digital therapeutics. We then provide a brief summary of the emerging evidence of efficacy of digital therapeutics for improving clinical outcomes, focusing on potential mechanisms of action for addressing some of the most challenging problems, including negative symptoms of psychosis. Our focus on these promising targets for digital therapeutics, including the latest in prescription models in the commercial space, highlights future directions for research and practice in this exciting field.

10.
Artigo em Inglês | MEDLINE | ID: mdl-39015743

RESUMO

A speech emotion recognition (SER) system deployed on a real-world application can encounter speech contaminated with unconstrained background noise. To deal with this issue, a speech enhancement (SE) module can be attached to the SER system to compensate for the environmental difference of an input. Although the SE module can improve the quality and intelligibility of a given speech, there is a risk of affecting discriminative acoustic features for SER that are resilient to environmental differences. Exploring this idea, we propose to enhance only weak features that degrade the emotion recognition performance. Our model first identifies weak feature sets by using multiple models trained with one acoustic feature at a time using clean speech. After training the single-feature models, we rank each speech feature by measuring three criteria: performance, robustness, and a joint rank ranking that combines performance and robustness. We group the weak features by cumulatively incrementing the features from the bottom to the top of each rank. Once the weak feature set is defined, we only enhance those weak features, keeping the resilient features unchanged. We implement these ideas with the low-level descriptors (LLDs). We show that directly enhancing the weak LLDs leads to better performance than extracting LLDs from an enhanced speech signal. Our experiment with clean and noisy versions of the MSP-Podcast corpus shows that the proposed approach yields a 17.7% (arousal), 21.2% (dominance), and 3.3% (valence) performance gains over a system that enhances all the LLDs for the 10dB signal-to-noise ratio (SNR) condition.

11.
Cogn Sci ; 48(4): e13446, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38655881

RESUMO

Understanding cognitive effort expended during assessments is essential to improving efficiency, accuracy, and accessibility within these assessments. Pupil dilation is commonly used as a psychophysiological measure of cognitive effort, yet research on its relationship with effort expended specifically during language processing is limited. The present study adds to and expands on this literature by investigating the relationships among pupil dilation, trial difficulty, and accuracy during a vocabulary test. Participants (n = 63, Mage = 19.25) completed a subset of trials from the Peabody Picture Vocabulary Test while seated at an eye-tracker monitor. During each trial, four colored images were presented on the monitor while a word was presented via audio recording. Participants verbally indicated which image they thought represented the target word. Words were categorized into Easy, Medium, and Hard difficulty. Pupil dilation during the Medium and Hard trials was significantly greater than during the Easy trials, though the Medium and Hard trials did not significantly differ from each other. Pupil dilation in comparison to trial accuracy presented a more complex pattern, with comparisons between accurate and inaccurate trials differing depending on the timing of the stimulus presentation. These results present further evidence that pupil dilation increases with cognitive effort associated with vocabulary tests, providing insights that could help refine vocabulary assessments and other related tests of language processing.


Assuntos
Pupila , Vocabulário , Humanos , Pupila/fisiologia , Masculino , Feminino , Adulto Jovem , Cognição/fisiologia , Adolescente , Adulto , Testes de Linguagem
12.
JMIR Form Res ; 8: e54912, 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38573739

RESUMO

BACKGROUND: Behavioral activation (BA) is an evidence-based treatment for depression that fosters engagement in values-based activities to increase access to positive reinforcement. Depressed mood has been shown to hinder smoking cessation. OBJECTIVE: This study determined the feasibility and preliminary efficacy of a mobile app to motivate smokers to quit by using BA and integrating motivational messages to quit smoking. METHODS: Adult smokers (N=56; mean age 34.5, SD 9.52 years) who were not ready to quit smoking within 30 days were recruited from advertisements and randomized to either 8 weeks of the BA app (set 2 values-based activities per week+motivational messages+feedback on changes in smoking, mood, and values-based activities) or the control group (no app; received resources for quitting smoking). All participants completed the baseline and end-of-treatment web-based questionnaires. Controls also completed weekly web-based assessments, and BA app participants completed assessments through the app. RESULTS: There were no dropouts and only 2 participants in each condition did not complete the end-of-treatment questionnaire. The results demonstrated that it is feasible to recruit smokers who are unmotivated to quit into a smoking cessation induction trial: 86% (57/66) of eligible participants were randomized (BA app: n=27; control: n=29). Participants reported high levels of satisfaction: 80% (20/25) of participants said they would recommend the BA app, there were moderate-to-high scores on the Mobile App Rating Scale, and 88% (22/25) of participants rated the app 3 stars or higher (out of 5). There were high levels of BA app engagement: 96% (26/27) of participants planned activities, and 67% (18/27) of participants planned 7 or more activities. High engagement was found even among those who were at the highest risk for continued smoking (low motivation to quit, low confidence to quit, and high negative affect). The results provided support for the hypothesized relationships between BA constructs: greater pleasant activity completion was associated with greater positive affect (b=0.37, SE 0.21; 95% CI -0.05 to 0.79; P=.08), and greater positive affect tended to predict fewer cigarettes smoked the next day (b=-0.19, SE 0.10; 95% CI -0.39 to 0.01; P=.06). Additionally, a greater number of activities planned was associated with lower negative affect (b=-0.26, SE 0.15; 95% CI -0.55 to 0.04; P=.09). Overall, 16% (4/25) of BA app participants set a quit date versus 4% (1/27) among controls, and there were promising (but not significant) trends for motivation and confidence to quit. CONCLUSIONS: The findings suggest that a mobile app intervention can be made appealing to smokers who are unmotivated to quit by focusing on aspects most important to them, such as mood management. This theory-based intervention has shown some initial support for the underlying theoretical constructs, and further efficacy testing is warranted in a fully powered trial.

13.
Schizophr Bull ; 49(5): 1138-1149, 2023 09 07.
Artigo em Inglês | MEDLINE | ID: mdl-37419082

RESUMO

BACKGROUND AND HYPOTHESIS: Some of the most debilitating aspects of schizophrenia and other serious mental illnesses (SMI) are the impairments in social perception, motivation, and behavior that frequently accompany these conditions. These impairments may ultimately lead to chronic social disconnection (ie, social withdrawal, objective isolation, and perceived social isolation or loneliness), which may contribute to the poor cardiometabolic health and early mortality commonly observed in SMI. However, the psychological and neurobiological mechanisms underlying relationships between impairments in social perception and motivation and social isolation and loneliness in SMI remain incompletely understood. STUDY DESIGN: A narrative, selective review of studies on social withdrawal, isolation, loneliness, and health in SMI. STUDY RESULTS: We describe some of what is known and hypothesized about the psychological and neurobiological mechanisms of social disconnection in the general population, and how these mechanisms may contribute to social isolation and loneliness, and their consequences, in individuals with SMI. CONCLUSIONS: A synthesis of evolutionary and cognitive theories with the "social homeostasis" model of social isolation and loneliness represents one testable framework for understanding the dynamic cognitive and biological correlates, as well as the health consequences, of social disconnection in SMI. The development of such an understanding may provide the basis for novel approaches for preventing or treating both functional disability and poor physical health that diminish the quality and length of life for many individuals with these conditions.


Assuntos
Transtornos Mentais , Esquizofrenia , Humanos , Solidão/psicologia , Isolamento Social/psicologia , Motivação
14.
Psychiatr Serv ; 74(12): 1263-1269, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-37254507

RESUMO

Black adults in the United States are more likely to be diagnosed as having schizophrenia spectrum disorders and to report experiences of paranoia than are White adults. Cultural mistrust, or marginalized groups' adaptive skepticism toward dominant historically White institutions, is associated with paranoia among Black individuals, suggesting that experiences of paranoia may be culturally mediated. The authors aimed to explore thematic differences between Black and White adults with schizophrenia spectrum disorders in their experiences of paranoia, including potential differences in persecutory content, cultural mistrust, and related themes. The authors conducted a thematic content analysis of archival qualitative data on experiences of paranoia reported by Black and White adults with schizophrenia spectrum disorders (N=21) in a structured clinical interview. Distinct themes related to cultural mistrust and persecutory paranoia emerged among the participants, suggesting that lived experiences of persecution and discrimination may affect how Black adults with schizophrenia spectrum disorders interpret threat and express paranoia. These findings highlight the importance of culturally responsive approaches in assessment and conceptualization of clinical paranoia versus cultural mistrust.


Assuntos
Transtornos Paranoides , Esquizofrenia , Adulto , Humanos , Transtornos Paranoides/diagnóstico , Esquizofrenia/diagnóstico , Brancos , Relações Interpessoais
15.
JMIR Form Res ; 7: e44323, 2023 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-37535418

RESUMO

BACKGROUND: Exposure to natural vegetation (ie, "greenspace") is related to beneficial outcomes, including higher positive and lower negative affect, in individuals with and those without mental health concerns. Researchers have yet to examine dynamic associations between greenspace exposure and affect within individuals over time. Smartphone-based ecological momentary assessment (EMA) and passive sensors (eg, GPS, microphone) allow for frequent sampling of data that may reveal potential moment-to-moment mechanisms through which greenspace exposure impacts mental health. OBJECTIVE: In this study, we examined associations between greenspace exposure and affect (both self-reported and inferred through speech) in people with and those without schizophrenia spectrum disorder (SSD) at the daily level using smartphones. METHODS: Twenty people with SSD and 14 healthy controls reported on their current affect 3 times per day over 7 days using smartphone-based EMA. Affect expressed through speech was labeled from ambient audio data collected via the phone's microphone using Linguistic Inquiry and Word Count (LIWC). Greenspace exposure, defined as the normalized difference vegetation index (NDVI), was quantified based on continuous geo-location data collected from the phone's GPS. RESULTS: Overall, people with SSD used significantly more positive affect words (P=.04) and fewer anger words (P=.04) than controls. Groups did not significantly differ in mean EMA-reported positive or negative affect, LIWC total word count, or NDVI exposure. Greater greenspace exposure showed small to moderate associations with lower EMA-reported negative affect across groups. In controls, greenspace exposure on a given day was associated with significantly lower EMA-reported anxiety on that day (b=-0.40, P=.03, 95% CI -0.76 to -0.04) but significantly higher use of negative affect words (b=0.66, P<.001, 95% CI 0.29-1.04). There were no significant associations between greenspace exposure and affect at the daily level among participants with SSD. CONCLUSIONS: Our findings speak to the utility of passive and active smartphone assessments for identifying potential mechanisms through which greenspace exposure influences mental health. We identified preliminary evidence that greenspace exposure could be associated with improved mental health by reducing experiences of negative affect. Future directions will focus on furthering our understanding of the relationship between greenspace exposure and affect on individuals with and those without SSD.

16.
Clin Psychol Psychother ; 19(4): 352-62, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22610999

RESUMO

A series of studies suggest that bipolar disorder is related to high sensitivity to incentives and that incentive sensitivity (or sensitivity of the approach system) can predict the course of mania. Incentive sensitivity in bipolar disorder seems to be related to two processes: a tendency to invest in difficult-to-attain goals and an over-reactivity to cues of goal progress versus thwarting. Both of those processes appear relevant to symptom generation. Hence, bipolar disorder seems related to a greater emphasis on reaching goals and also a problematic reactivity to reaching those highly desired goals. We suggest directions for treatment development focused on these issues in goal regulation.


Assuntos
Aspirações Psicológicas , Atenção , Transtorno Bipolar/psicologia , Transtorno Bipolar/terapia , Terapia Cognitivo-Comportamental/métodos , Objetivos , Motivação , Afeto , Transtorno Bipolar/diagnóstico , Frustração , Humanos , Acontecimentos que Mudam a Vida , Recompensa , Autoimagem
17.
Psychiatry Res ; 309: 114379, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35123252

RESUMO

INTRODUCTION: Anhedonia is a transdiagnostic construct conceptualized as physical or social, however, the extent to which these subtypes differ across psychotic and mood pathology remains poorly understood. We aimed to quantify the severity of physical and social anhedonia across Major Depressive Disorder (MDD) and Schizophrenia Spectrum Disorder (SSDs). METHODS: We conducted meta-analyses of the Chapman Physical and Social Anhedonia Scales (PAS;SAS). We reviewed data from participants with MDD, and SSDs separately. RESULTS: Our first meta-analysis (n = 8 studies, 409 participants) with MDD revealed elevated SAS and PAS in MDD compared to controls. Within-group differences were not significant. Depressive symptom severity moderated the between-group effect of PAS. Our second meta-analysis (n = 44 studies, 3352 participants) revealed elevated SAS and PAS in SSDs compared to controls. We detected a moderate difference between the SAS and PAS within the SSD group. Age moderated within-group differences of SAS and PAS. DISCUSSION: People with SSD or MDD experience elevated SAS and PAS compared to controls. People with SSDs endorse greater challenges experiencing social rewards relative to physical rewards. People with MDD experience social and physical rewards similarly. The moderating role of depressive symptoms in MDD suggests that physical anhedonia is more state-like than social anhedonia.


Assuntos
Transtorno Depressivo Maior , Esquizofrenia , Anedonia , Transtorno Depressivo Maior/complicações , Humanos , Recompensa , Esquizofrenia/complicações
18.
Psychol Assess ; 34(3): 205-216, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34843281

RESUMO

Psychosocial functioning impairment is prevalent in first-episode psychosis and chronic schizophrenia. The Quality of Life Scale (QLS) is a widely used tool to measure psychosocial functioning; however, given the overlap between negative symptoms and functioning, along with the QLS being conceptualized initially as a measure of the deficit syndrome, it is unclear whether summing QLS items into a total score is an appropriate measure of overall psychosocial functioning. This study aimed to examine the centrality of QLS items and the appropriateness of using a QLS total score. Participants with first-episode psychosis (n = 404) completed the QLS. Item centrality was assessed using a network analysis approach, while reliability and dimensionality of the QLS total score and subscales were measured using bifactor modeling and related psychometric indices. Network analysis results showed that an item relating to motivation was the most central item within the scale. Moreover, bifactor modeling results found that motivation and other items relating to negative symptoms may reflect the QLS total score more strongly than other functioning (i.e., Interpersonal, Instrumental) domains. Based on these findings, we urge researchers to use caution when using a QLS total score, as it may unequally confound functional domains and motivation. Moreover, our results continue to underscore the importance of negative symptoms, particularly motivational impairment, in psychosocial functioning. Future studies should aim to examine the centrality of other functioning measures in psychosis and schizophrenia, as our results suggest that psychosocial functioning may be greatly influenced by motivation. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Transtornos Psicóticos , Qualidade de Vida , Humanos , Motivação , Funcionamento Psicossocial , Transtornos Psicóticos/diagnóstico , Qualidade de Vida/psicologia , Reprodutibilidade dos Testes
19.
Schizophr Res Cogn ; 28: 100244, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35242612

RESUMO

Digital mental health interventions, such as those provided by smartphone applications (apps), show promise as cost-effective approaches to increasing access to evidence-based psychosocial interventions for psychosis. Although it is well known that limited financial resources can reduce the benefits of digital approaches to mental healthcare, the extent to which cognitive functioning in this population could impact capacity to engage in and benefit from these interventions is less studied. In the current study we examined the extent to which cognitive functioning (premorbid cognitive abilities and social cognition) were related to treatment engagement and outcome in a standalone digital intervention for social functioning. Premorbid cognitive abilities generally showed no association with aggregated treatment engagement markers, including proportion of notifications responded to and degree of interest in working on app content, though there was a small positive association with improvements in social functioning. Social cognition, as measured using facial affect recognition ability, was unrelated to treatment engagement or outcome. These preliminary findings suggest that cognitive functioning is generally not associated with engagement or outcomes in a standalone digital intervention designed for and with people with schizophrenia spectrum disorders.

20.
J Autism Dev Disord ; 52(10): 4274-4285, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34611837

RESUMO

Social communication and executive functioning challenges as well as co-occurring anxiety/depression may make acquiring the skills needed to manage daily life tasks difficult for diploma-track autistic youth, thus limiting their participation in adult roles. This study describes the associations between executive function, social communication skills, and internalizing behaviors on task management in academically capable autistic adolescents (n = 46) using multiple regression with mediator analysis. The three predictors and youth age explained a moderate amount of variance in task management. Metacognition mediated the effect of social communication skills and internalizing behaviors on task management. Relations between underlying factors that influence self-management of daily life tasks are complex, supporting the need for multifaceted assessment and intervention approaches for academically capable autistic youth.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Metacognição , Autogestão , Adolescente , Adulto , Comunicação , Humanos
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