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1.
Psychol Trauma ; 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38358726

RESUMO

OBJECTIVE: The COVID-19 pandemic has elicited wide-scale general psychological distress; however, longitudinal investigations are required to identify the critical resources that support individuals' adaptation to this type of unique situation over time. Hardiness, a cognitive trait that facilitates adaptation in the context of adversity and possible posttraumatic growth, may be particularly influential on mental health recovery during health disasters when other resources are not available or effective. METHOD: We tested the hypothesis that greater psychological hardiness prior to the pandemic would predict lower traumatic stress symptoms (TSSs) and loneliness early into the pandemic and decreases in TSSs and loneliness between early 2020 and late 2021. Predominantly ethnic minority (77% Latina/o/x or Asian American) female young adults (N = 80; Mage = 25 years; 88% female) attending a minority-serving public university completed a measure of hardiness in January 2020 as well as measures of pandemic-related TSSs and loneliness in April 2020, October 2020, and December 2021. RESULTS: Latent growth curve analyses indicated that hardiness was associated with lower initial loneliness as well as decreases in TSSs and loneliness over time. CONCLUSIONS: Consistent with previous research on adaptation to other potentially traumatic stressors, the current findings suggest that psychological hardiness may play a critical protective role during a global health disaster, both in terms of initial distress and changes in distress over time. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

2.
Schizophr Res ; 250: 13-21, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36242786

RESUMO

Impaired social functioning contributes to reduced quality of life and is associated with poor physical and psychological well-being in schizophrenia, and thus is a key psychosocial treatment target. Low social motivation contributes to impaired social functioning, but is typically examined using self-report or clinical ratings, which are prone to recall biases and do not adequately capture the dynamic nature of social motivation in daily life. In the current study, we examined the utility of global positioning system (GPS)-based mobility data for capturing social motivation and behavior in people with schizophrenia. Thirty-one participants with schizophrenia engaged in a 60-day mobile intervention designed to increase social motivation and functioning. We examined associations between twice daily self-reports of social motivation and behavior (e.g., number of social interactions) collected via Ecological Momentary Assessment (EMA) and passively collected daily GPS mobility metrics (e.g., number of hours spent at home) in 26 of these participants. Findings suggested that greater mobility on a given day was associated with more EMA-reported social interactions on that day for four out of five examined mobility metrics: number of hours spent at home, number of locations visited, probability of being stationary, and likelihood of following one's typical routine. In addition, greater baseline social functioning was associated with less daily time spent at home and lower probability of following a daily routine during the intervention. GPS-based mobility thus corresponds with social behavior in daily life, suggesting that more social interactions may occur at times of greater mobility in people with schizophrenia, while subjective reports of social interest and motivation are less associated with mobility for this population.


Assuntos
Esquizofrenia , Humanos , Qualidade de Vida , Smartphone , Motivação , Avaliação Momentânea Ecológica , Comportamento Social
3.
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.

4.
Trends Psychiatry Psychother ; 44: e20200131, 2022 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-34551464

RESUMO

INTRODUCTION: Anhedonia is a critical symptom of major depressive disorder that is defined as the reduced ability to experience pleasure. The Temporal Experience of Pleasure Scale (TEPS) is commonly used to measure anhedonia and has exhibited satisfactory reliability. OBJECTIVES: We aim to perform cross-cultural adaptation of a Brazilian version of the TEPS and evaluate its psychometric properties. METHOD: The cross-cultural adaptation was performed according to previously established protocols. Cronbach's alpha coefficient of internal consistency was used to establish the degree of interrelation and coherence of items. Also, we calculated the intraclass correlation coefficient to determine the stability of the scale after a proposed interval had elapsed and used exploratory factor analysis to evaluate the scale's factor structure and content validity. Principal component analysis was used to determine the factors to be retained in the factor model. RESULTS: The participants reported that the Brazilian version of the TEPS had good comprehensibility and applicability. The results revealed a statistically significant correlation between measures. The intraclass correlation coefficient calculated was significant. The Cronbach's alpha value calculated indicated that the scale's overall internal consistency was adequate. CONCLUSION: The Portuguese version of the TEPS scale proposed achieved good comprehensibility for the Brazilian population and its psychometric characteristics demonstrated good reliability and validity.


Assuntos
Transtorno Depressivo Maior , Prazer , Anedonia , Brasil , Comparação Transcultural , Transtorno Depressivo Maior/diagnóstico , Humanos , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
5.
Trends psychiatry psychother. (Impr.) ; 44: e20200131, 2022. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1377444

RESUMO

Abstract Introduction: Anhedonia is a critical symptom of major depressive disorder that is defined as the reduced ability to experience pleasure. The Temporal Experience of Pleasure Scale (TEPS) is commonly used to measure anhedonia and has exhibited satisfactory reliability. Objectives: We aim to perform cross-cultural adaptation of a Brazilian version of the TEPS and evaluate its psychometric properties. Method: The cross-cultural adaptation was performed according to previously established protocols. Cronbach's alpha coefficient of internal consistency was used to establish the degree of interrelation and coherence of items. Also, we calculated the intraclass correlation coefficient to determine the stability of the scale after a proposed interval had elapsed and used exploratory factor analysis to evaluate the scale's factor structure and content validity. Principal component analysis was used to determine the factors to be retained in the factor model. Results: The participants reported that the Brazilian version of the TEPS had good comprehensibility and applicability. The results revealed a statistically significant correlation between measures. The intraclass correlation coefficient calculated was significant. The Cronbach's alpha value calculated indicated that the scale's overall internal consistency was adequate. Conclusion: The Portuguese version of the TEPS scale proposed achieved good comprehensibility for the Brazilian population and its psychometric characteristics demonstrated good reliability and validity.

6.
JMIR Ment Health ; 8(6): e27475, 2021 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-34128812

RESUMO

BACKGROUND: People with schizophrenia and other serious mental illnesses often lack access to evidence-based interventions, particularly interventions that target meaningful recovery outcomes such as social functioning and quality of life. Mobile technologies, including smartphone apps, have the potential to provide scalable support that places elements of evidence-based interventions at the palm of patients' hands. OBJECTIVE: We aim to develop a smartphone app-called Motivation and Skills Support-to provide targeted social goal support (eg, making new friends and improving existing relationships) for people with schizophrenia enrolled in a stand-alone open trial. METHODS: In this paper, we presented preliminary outcomes of 31 participants who used the Motivation and Skills Support app for 8 weeks, including social functioning pre- to postintervention, and momentary reports of treatment targets (eg, social motivation and appraisals) during the intervention. RESULTS: The findings suggest that the intervention improved self-reported social functioning from baseline to treatment termination, particularly in female participants. Gains were not maintained at the 3-month follow-up. Furthermore, increased social functioning was predicted by momentary reports of social appraisals, including perceived social competence and the extent to which social interactions were worth the effort. CONCLUSIONS: The implications of these findings and future directions for addressing social functioning in schizophrenia using mobile technology have been discussed. TRIAL REGISTRATION: ClinicalTrials.gov NCT03404219; https://clinicaltrials.gov/ct2/show/NCT03404219.

8.
J Psychiatr Res ; 137: 613-620, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33190842

RESUMO

Social impairment is a cardinal feature of schizophrenia spectrum disorders (SZ). Smaller social network size, diminished social skills, and loneliness are highly prevalent. Existing, gold-standard assessments of social impairment in SZ often rely on self-reported information that depends on retrospective recall and detailed accounts of complex social behaviors. This is particularly problematic in people with SZ given characteristic cognitive impairments and reduced insight. Ecological Momentary Assessment (EMA; repeated self-reports completed in the context of daily life) allows for the measurement of social behavior as it occurs in vivo, yet still relies on participant input. Momentary characterization of behavior using smartphone sensors (e.g., GPS, microphone) may also provide ecologically valid indicators of social functioning. In the current study we tested associations between both active (e.g., EMA-reported number of interactions) and passive (GPS-based mobility, conversations captured by microphone) smartphone-based measures of social activity and measures of social functioning and loneliness to examine the promise of such measures for understanding social impairment in SZ. Our results indicate that passive markers of mobility were more consistently associated with EMA measures of social behavior in controls than in people with SZ. Furthermore, dispositional loneliness showed associations with mobility metrics in both groups, while general social functioning was less related to these metrics. Finally, interactions detected in the ambient audio were more tied to social functioning in SZ than in controls. Findings speak to the promise of smartphone-based digital phenotyping as an approach to understanding objective markers of social activity in people with and without schizophrenia.


Assuntos
Esquizofrenia , Smartphone , Avaliação Momentânea Ecológica , Humanos , Estudos Retrospectivos , Interação Social
9.
J Behav Cogn Ther ; 30(1): 23-32, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33437970

RESUMO

People with schizophrenia and schizoaffective disorder (SZ) often struggle with social impairment, including small social networks and loneliness. Limitations in social skills and reduced social motivation-effort to engage in social connection-are key contributors to social impairment. While evidence-based approaches to improving social outcomes are available, including social skills training and cognitive behavioral therapy for psychosis, ongoing access to these interventions is often limited. Mobile technologies, including smartphone applications (apps), may address some of this need. In this paper, we describe the development of a smartphone app designed to address social skill and motivation deficits in SZ: the Motivation and Skills Support (MASS) app. We discuss the incorporation of stakeholder input into intervention design as well as results from usability pilot testing of the app in a sample of people with SZ. Finally, we describe next steps in the development and testing process of the MASS app.

10.
PLoS One ; 14(9): e0223003, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31568483

RESUMO

People with schizophrenia report positive emotion during social interactions in ecological momentary assessment (EMA) studies; however, few of these studies examine the qualities of social interactions (e.g., intimacy) that may affect emotion experience. In the current EMA study, people with (n = 20) and without schizophrenia (n = 15) answered questions about the quality of their social interactions, including their emotion experiences. We also explored the relationship between EMA-reported social experiences and trait loneliness, negative symptoms, and social functioning. People with and without schizophrenia did not differ in EMA-reported proportion of time spent with others, extent of involvement during social interactions, intimacy of interactions, or average number of social interactions. Both people with and without schizophrenia reported more positive than negative emotion during social experiences. However, people with schizophrenia reported more loneliness, more severe negative symptoms, and impaired social functioning compared to people without schizophrenia. Further, specific qualities of social interactions (intimacy of interaction, involvement during interaction) were related to happiness during interactions only in people without schizophrenia. These results suggest that while people with and without schizophrenia report similar rates of in-the-moment social emotion experiences, the impact of social interaction quality on emotion may differ between groups.


Assuntos
Solidão/psicologia , Prazer/fisiologia , Esquizofrenia/fisiopatologia , Psicologia do Esquizofrênico , Habilidades Sociais , Adulto , Estudos de Casos e Controles , Avaliação Momentânea Ecológica/estatística & dados numéricos , Feminino , Felicidade , Humanos , Masculino , Pessoa de Meia-Idade
11.
Clin Psychol Rev ; 63: 12-24, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29870953

RESUMO

Limited quantity and quality of interpersonal exchanges and relationships predict worse symptomatic and hospitalization outcomes and limit functional recovery in people with schizophrenia. While deficits in social skills and social cognition contribute to much of the impairment in social functioning in schizophrenia, our focus on the current review is social motivation-the drive to connect with others and form meaningful, lasting relationships. We pay particular attention to how recent research on reward informs, and limits, our understanding of the construct. Recent findings that parse out key components of human motivation, especially the temporal nature of reward and effort, are informative for understanding some aspects of social motivation. This approach, however, fails to fully integrate the critical influence of uncertainty and punishment (e.g., avoidance, threat) in social motivation. In the current review, we argue for the importance of experimental paradigms and real-time measurement to capture the interaction between social approach and avoidance in characterizing social affiliation in schizophrenia. We end with suggestions for how researchers might move the field forward by emphasizing the ecological validity of social motivation paradigms, including dynamic, momentary assessment of social reward and punishment using mobile technology and other innovative tools.


Assuntos
Motivação , Psicologia do Esquizofrênico , Ajustamento Social , Comportamento Social , Humanos , Recompensa
12.
Psychiatry Res ; 261: 225-231, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29329039

RESUMO

Over a century of research has documented that avolition is a core symptom in schizophrenia. However, the drivers of avolition remain unclear. Conceptually, there are at least two potential mutually compatible drivers that could cause avolition in schizophrenia. First, people with schizophrenia might have differences in preferences that result in less goal-directed behavior than non-clinical populations (preference-differences). Second, people with schizophrenia might have difficulty translating their preferences into manifest behavior at rates similar to non-clinical populations (psychological-inertia). In the present work, we modified and validated a well-validated paradigm from the motivation/decision making literature to compare levels of preference-differences and psychological-inertia. To measure preference-differences, people with and without schizophrenia choose between a lower-valenced and higher-valenced image. We measured the rate at which the normatively lower-valenced image was preferred. To measure psychological-inertia, both groups were given the opportunity to volitionally switch from a lower-valenced image and view a higher-valenced image. Contrary to expectations, people with schizophrenia did not differ on either preference-differences or psychological-inertia. Statistical analysis revealed that the possibility of a Type II error for even a weak effect was small. The present data suggest new avenues for research investigating mechanisms underlying avolition and clinical interventions targeting avolition in schizophrenia.


Assuntos
Apatia , Comportamento de Escolha , Tomada de Decisões , Motivação , Psicologia do Esquizofrênico , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
13.
Psychiatry Res ; 260: 138-143, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29195165

RESUMO

Anhedonia, or the inability to experience pleasure, is commonly observed in schizophrenia. It has been suggested that patients with schizophrenia are unable to predict future pleasurable events, but show intact experience of in-the-moment pleasure. Therefore, the Temporal Experience of Pleasure Scale (TEPS), a self-report measure allowing the assessment of anticipatory and consummatory pleasure, has been developed. To validate the German version of the TEPS, we recruited 59 healthy control participants and 51 patients with schizophrenia or schizoaffective disorder who completed the TEPS as well as a battery of psychometric tests to assess psychopathology, in particular self-rated anhedonia and clinician-rated apathy as well as overall measures of negative symptoms. We found acceptable to good internal consistency and a factor structure comparable to the original version. Scores of the TEPS were related to measures of anhedonia and apathy, but not with other measures of psychopathology. The present results suggest that the German version of the TEPS shows adequate reliability and validity to assess the construct of anhedonia. However, differential aspects of anticipatory and consummatory pleasure should be further investigated in clinical samples.


Assuntos
Anedonia/fisiologia , Apatia/fisiologia , Escalas de Graduação Psiquiátrica/normas , Psicometria/normas , Transtornos Psicóticos/diagnóstico , Esquizofrenia/diagnóstico , Adulto , Feminino , Alemanha , Humanos , Masculino , Psicometria/instrumentação , Transtornos Psicóticos/fisiopatologia , Reprodutibilidade dos Testes , Esquizofrenia/fisiopatologia , Adulto Jovem
14.
Schizophr Res ; 183: 49-55, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-27881233

RESUMO

Research on emotion experience in response to valenced stimuli has consistently shown that people with schizophrenia have the capacity to experience emotion. Specifically, people with schizophrenia report similar experiences to both positive and negative emotion-eliciting stimuli as individuals without the disorder. However, it is less clear if people with schizophrenia experience similar levels of positive emotion and negative emotion outside of standardized laboratory contexts, as in their daily lives. One reliable method for assessing emotion experience in schizophrenia has been the Experience Sampling Method (ESM), or Ecological Momentary Assessment (EMA). Using the PRISMA guidelines for meta-analysis, we reviewed the literature for all studies that included people with and without schizophrenia, and that included a positive or negative emotion assessment during participants' daily lives. The current study is a meta-analysis of 12 EMA studies of emotion experience, which included a total of 619 people with schizophrenia and 730 healthy controls. Results indicate that people with schizophrenia consistently report more negative and less positive emotion than healthy control participants. These findings differ from laboratory-based studies, which may be due to several factors, including environmental differences, effects of the disorder that appear more clearly in daily life, or additional concerns, such as depression, which has been shown to be related to negative emotion in schizophrenia. Importantly, these findings are in line with questionnaire-based measures of emotion experience, lending some support for their use in research and clinical settings.


Assuntos
Atividades Cotidianas , Sintomas Afetivos/etiologia , Esquizofrenia/complicações , Psicologia do Esquizofrênico , Sintomas Afetivos/psicologia , Bases de Dados Bibliográficas/estatística & dados numéricos , Humanos
15.
Schizophr Res ; 169(1-3): 204-208, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26530628

RESUMO

A priority for improving outcome in individuals at clinical high risk (CHR) is enhancing our understanding of predictors of psychosis as well as psychosocial functioning. Social functioning, in particular, is a unique indicator of risk as well as an important outcome in itself. Negative symptoms are a significant determinant of social functioning in CHR individuals; yet, it is unclear which specific negative symptoms drive functional outcome and how these symptoms function relative to other predictors, such as neurocognition and mood/anxiety symptoms. In a sample of 85 CHR individuals, we examined whether a two-factor negative symptom structure that is found in schizophrenia (experiential vs expressive symptoms) would be replicated in a CHR sample; and tested the degree to which specific negative symptoms predict social functioning, relative to neurocognition and mood/anxiety symptoms, which are known to predict functioning. The two-factor negative symptom solution was replicated in this CHR sample. Negative symptom severity was found to be uniquely predictive of social functioning, above and beyond depression/anxiety and neurocognition. Experiential symptoms were more strongly associated with social functioning, relative to expression symptoms. In addition, experiential symptoms mediated the relationship between expressive negative symptoms and social functioning. These results suggest that experiences of motivational impairment are more important in determining social functioning, relative to affective flattening and alogia, in CHR individuals, thereby informing the development of more precise therapeutic targets. Developing novel interventions that stimulate goal-directed behavior and reinforce rewarding experiences in social contexts are recommended.


Assuntos
Sintomas Prodrômicos , Transtornos Psicóticos/fisiopatologia , Transtornos Psicóticos/psicologia , Ajustamento Social , Transtornos do Comportamento Social/diagnóstico , Adolescente , Feminino , Humanos , Masculino , Fatores de Risco , Estatística como Assunto , Adulto Jovem
16.
Psychiatry Res ; 225(1-2): 70-78, 2015 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-25454115

RESUMO

Motivation deficits are common in several disorders including schizophrenia, and are an important factor in both functioning and treatment adherence. Self-Determination Theory (SDT), a leading macro-theory of motivation, has contributed a number of insights into how motivation is impaired in schizophrenia. Nonetheless, self-report measures of motivation appropriate for people with severe mental illness (including those that emphasize SDT) are generally lacking in the literature. To fill this gap, we adapted and abbreviated the well-validated General Causality Orientation Scale for use with people with schizophrenia and with other severe mental disorders (GCOS-clinical populations; GCOS-CP). In Study 1, we tested the similarity of our measure to the existing GCOS (using a college sample) and then validated this new measure in a schizophrenia and healthy control sample (Study 2). Results from Study 1 (N=360) indicated that the GCOS-CP was psychometrically similar to the original GCOS and provided good convergent and discriminant validity. In Study 2, the GCOS-CP was given to individuals with (N=44) and without schizophrenia (N=42). In line with both laboratory-based and observer-based research, people with schizophrenia showed lower motivational autonomy and higher impersonal/amotivated orientations. Additional applications of the GCOS-CP are discussed.


Assuntos
Motivação , Autonomia Pessoal , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Esquizofrenia/diagnóstico , Psicologia do Esquizofrênico , Adolescente , Adulto , Doença Crônica , Feminino , Humanos , Controle Interno-Externo , Masculino , Pessoa de Meia-Idade , Psicometria , Valores de Referência , Reprodutibilidade dos Testes , Adulto Jovem
17.
J Abnorm Psychol ; 123(4): 771-82, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25133986

RESUMO

Motivation deficits are common in schizophrenia, but little is known about underlying mechanisms, or the specific goals that people with schizophrenia set in daily life. Using neurobiological heuristics of pleasure anticipation and effort assessment, we examined the quality of activities and goals of 47 people with and 41 people without schizophrenia, utilizing ecological momentary assessment. Participants were provided cell phones and called 4 times a day for 7 days, and were asked about their current activities and anticipation of upcoming goals. Activities and goals were later coded by independent raters on pleasure and effort. In line with recent laboratory findings on effort computation deficits in schizophrenia, relative to healthy participants, people with schizophrenia reported engaging in less effortful activities and setting less effortful goals, which were related to patient functioning. In addition, patients showed some inaccuracy in estimating how difficult an effortful goal would be, which in turn was associated with lower neurocognition. In contrast to previous research, people with schizophrenia engaged in activities and set goals that were more pleasure-based, and anticipated goals as being more pleasurable than controls. Thus, this study provided evidence for difficulty with effortful behavior and not anticipation of pleasure. These findings may have psychosocial treatment implications, focusing on effort assessment or effort expenditure. For example, to help people with schizophrenia engage in more meaningful goal pursuits, treatment providers may leverage low-effort pleasurable goals by helping patients to break down larger, more complex goals into smaller, lower-effort steps that are associated with specific pleasurable rewards.


Assuntos
Objetivos , Motivação , Prazer , Recompensa , Psicologia do Esquizofrênico , Adulto , Feminino , Humanos , Masculino , Escalas de Graduação Psiquiátrica , São Francisco , Esquizofrenia
18.
Psychiatry Res ; 220(1-2): 89-95, 2014 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-25124684

RESUMO

Researchers have recently hypothesized that negative emotion in positive situations may be one mechanism for understanding emotion dysfunction in schizophrenia. Using ecological momentary assessment, we examined the relationship between emotion experience and environmental context in the daily lives of participants with and without schizophrenia. Participants with (n=47) and without schizophrenia (n=41) were provided a cellular telephone and called four times a day for one week. During each call participants rated their emotion experiences, described their current activities, and rated enjoyment from those activities. In line with previous research, participants with schizophrenia reported higher negative emotion overall relative to participants without schizophrenia, but equivalent levels of positive emotion and activity enjoyment. In line with the environment-incongruent negative emotion hypothesis, participants with schizophrenia evidenced a weaker relationship between reported enjoyment of current activities and current negative emotion compared to participants without schizophrenia. In addition, lower neurocognition predicted this weak relationship between negative emotion and context in the schizophrenia group. These findings provide ecologically valid support for environment-incongruent negative emotion in schizophrenia, and suggest that people with schizophrenia with more impaired neurocognition may have more difficulties regulating negative emotion.


Assuntos
Sintomas Afetivos/fisiopatologia , Anedonia/fisiologia , Transtornos Psicóticos/fisiopatologia , Esquizofrenia/fisiopatologia , Adulto , Sintomas Afetivos/etiologia , Meio Ambiente , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Psicóticos/complicações , Esquizofrenia/complicações
19.
Schizophr Res ; 156(2-3): 217-22, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24853060

RESUMO

Self-determination theory (SDT) provides a model for understanding motivation deficits in schizophrenia, and recent research has focused on problems with intrinsic motivation. However, SDT emphasizes that motivated behavior results from three different factors: intrinsic motivators (facilitated by needs for autonomy, competency, and relatedness), extrinsic motivators (towards reward or away from punishment), or when intrinsic and extrinsic motivators are absent or thwarted a disconnect-disengagement occurs resulting in behavior driven by boredom or 'passing time'. Using a novel approach to Ecological Momentary Assessment, we assessed the degree to which people with schizophrenia were motivated by these factors relative to healthy control participants. Forty-seven people with and 41 people without schizophrenia were provided with cell phones and were called four times a day for one week. On each call participants were asked about their goals, and about the most important reason motivating each goal. All responses were coded by independent raters (blind to group and hypotheses) on all SDT motivating factors, and ratings were correlated to patient functioning and symptoms. We found that, relative to healthy participants, people with schizophrenia reported goals that were: (1) less motivated by filling autonomy and competency needs, but equivalently motivated by relatedness; (2) less extrinsically rewarding, but equivalently motivated by punishment; (3) more disconnected-disengaged. Higher disconnected-disengaged goals were significantly associated with higher negative symptoms and lower functioning. These findings indicate several important leverage points for behavioral treatments and suggest the need for vigorous psychosocial intervention focusing on autonomy, competence, and reward early in the course of illness.


Assuntos
Modelos Psicológicos , Motivação , Autonomia Pessoal , Psicologia do Esquizofrênico , Adulto , Telefone Celular , Feminino , Objetivos , Humanos , Masculino , Transtornos Psicóticos/psicologia , Punição , Recompensa , Esquizofrenia
20.
Int J Psychophysiol ; 84(1): 80-5, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22285891

RESUMO

The affective startle modulation task has been an important measure in understanding physiological aspects of emotion and motivational responses. Research utilizing this method has relied primarily on a 'passive' viewing paradigm, which stands in contrast to everyday life where much of emotion and motivation involves some active choice or agency. The present study investigated the role of choice on the physiology of emotion. Eighty-four participants were randomized into 'choice' (n=44) or 'no-choice' (n=40) groups distinguished by the ability to choose between stimuli. EMG eye blink responses were recorded in both anticipation and stimulus viewing. Results indicated a significant attenuation of the startle magnitude in choice condition trials (relative to no-choice) across all picture categories and probe times. We interpret these findings as an indication that the act of choice may decrease one's defensive response, or conversely, lacking choice may heighten the defensive response. Implications for future research are discussed.


Assuntos
Estimulação Acústica/métodos , Afeto/fisiologia , Comportamento de Escolha/fisiologia , Emoções/fisiologia , Estimulação Luminosa/métodos , Reflexo de Sobressalto/fisiologia , Adulto , Nível de Alerta/fisiologia , Eletromiografia/métodos , Feminino , Humanos , Masculino
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