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1.
Schizophr Res ; 267: 216-222, 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38569395

RESUMO

Negative symptoms of schizophrenia robustly predict functional outcomes but remain relatively resistant to available treatments. Better measures of negative symptoms, especially motivational deficits, are needed to better understand these symptoms and improve treatment development. Recent research shows promise in linking behavioral effort tasks to motivational negative symptoms, reward processing deficits, and defeatist attitudes, but few studies account for individual or group (patient v. control) differences in cognitive ability to perform the tasks. Individuals with poorer abilities might be less motivated to perform tasks because they find them more difficult to perform. This study used a personalized digit span task to control task difficulty while measuring task effort via pupillary responses (greater dilation indicates greater cognitive effort) at varying monetary rewards ($1 & $2). Participants with schizophrenia (N = 34) and healthy controls (N = 41) performed a digit span task with personalized max span lengths and easy (max- 2 digits) and overload (max+ 2 digits) conditions. Consistent with many studies, pupillary responses (cognitive effort) increased with greater difficulty until exceeding capacity. A similar pattern of reward responsivity was seen in both groups, such that greater reward increased dilation (effort) comparably for both groups when difficulty was within capacity. Neither patients nor controls exerted increased effort for greater reward when difficulty exceeded capacity. In patients, positive relationships were found between pupil dilation and defeatist performance beliefs if task difficulty was within capacity; a relationship that reversed if the task was too difficult. The findings demonstrate the importance of accounting for cognitive capacity and task difficulty when evaluating motivation and reward sensitivity and illustrate the utility of pupillary responses as an objective measure of effort in schizophrenia.

2.
Schizophr Bull Open ; 4(1): sgad020, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37601286

RESUMO

Aim: Difficulties in social functioning have been observed in youth at clinical high-risk (CHR) of psychosis even in those who do not go on to develop a psychotic illness. Few treatment studies have attempted to improve social functioning in this population. The aim of this study was to conduct a randomized trial comparing the effects of Cognitive-Behavioral Social Skills Training (CBSST) with a supportive therapy (ST). Methods: Both CBSST and ST were weekly group therapies, delivered over 18 weeks. This was a 2-arm trial with single-blinded ratings and intention-to-treat analyses. Assessments occurred at baseline, end-of-treatment, and 12 months after the baseline assessment. The primary outcome was social and role functioning and defeatist performance attitudes were the secondary outcome. Attenuated positive and negative symptoms, anxiety, depression, self-efficacy, and beliefs about self and others were examined as exploratory outcomes. Results: There were no significant differences between the 2 groups at baseline or either of the 2 follow-ups. However, at follow-ups, in each group there were significant improvements in clinical symptoms. These could not be attributed to group treatment since there was no control or wait-list group. Conclusions: Since poor social functioning is one of the most observed difficulties in CHR individuals, and a decline in social functioning may be a significant predictor of later transition to psychosis, future work will be needed to find effective treatments for this decline in functioning for CHR youth.

3.
J Psychiatr Res ; 159: 76-81, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36689853

RESUMO

INTRODUCTION: Many people with schizophrenia report low levels of negative affect (NA), which may reflect biases in emotion processing. In the general population there is an inverse correlation between positive affect (PA) and NA. It is possible that this relationship is different among people with schizophrenia. This study aims to understand the relationship between PA and NA among people with schizophrenia, and explore PA and NA variability in relationship to social context. METHOD: 105 participants with schizophrenia answered ecological momentary assessment (EMA) surveys seven times/day for seven days. They reported their experiences of mood states on a scale of one to seven: happiness, sadness, relaxation, and anxiety, as well as their social context (alone vs. with someone). Mood variability was calculated using the mean square of successive difference, and multilevel modeling was used to understand the time-course of reported moods within- and between-person. RESULTS: 45% of surveys reported the absence of NA, though there was an inverse within-subjects correlation between PA and NA. Between-subjects, there was a large inverse correlation between PA and NA. Greater mood variability was associated with a greater number of social interactions. DISCUSSION: The results of this study point to both the role of social context in mood variability, and momentary trends in mood experiences, with some individuals reporting no NA, some indicating both PA and NA, and some indicating a more normative affect pattern. Later research should address the possible impact of emotion perception bias and social interactions on moods states in schizophrenia.


Assuntos
Avaliação Momentânea Ecológica , Esquizofrenia , Humanos , Felicidade , Afeto , Transtornos de Ansiedade
5.
J Cogn Psychother ; 2022 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-35470152

RESUMO

Interventions for functional impairments in adolescents and young adults at clinical high risk (CHR) for psychosis are needed. Cognitive-Behavioral Social Skills Training (CBSST) has been found to improve functioning in patients with schizophrenia. The CBSST manual was adapted for CHR and implemented across 3 sites. The key changes that were made were to present a focus of normalization and destigmatization of attenuated psychotic symptoms and since CBSST has a major focus on role plays, problem solving and challenging thoughts, examples of these were changed to be more appropriate for this young CHR population. We describe the manual modifications and present fidelity data to examine the success of training and supervision methods in a multi-site randomized controlled trial of CBSST in CHR youth. Fidelity was high and comparable across sites. Case vignettes are presented to demonstrate how CBSST techniques were adapted for UHR individuals to target functional impairments.

6.
Behav Sci (Basel) ; 12(3)2022 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-35323379

RESUMO

Sedentary behavior contributes to a shortened life expectancy in individuals with schizophrenia-spectrum disorders (SSDs), highlighting the need for effective interventions to improve health. This study examined whether reduced ecological momentary assessment (EMA) measures of sedentary activities were observed in individuals with SSDs who participated in a 24-week randomized trial of cognitive behavioral social skills training (CBSST) and either intranasal oxytocin or placebo (NCT01752712). Participants (n = 57) were prompted with EMA surveys seven times per day for seven days during the baseline, 12-week, and 24-week timepoints to sample sedentary behavior ratings, positive and negative affect, interpersonal interactions, and interpersonal interaction appraisals. Results revealed that sedentary behavior and social interactions did not significantly change over the 24-week clinical trial; however, positive and negative affect and defeatist interaction appraisals improved with treatment, and oxytocin produced modest additional improvements in these EMA outcomes. Greater momentary positive affect was significantly associated with greater activity and greater frequency of interactions. Overall, CBSST was effective at improving functioning, momentary affect, and defeatist interaction appraisals, although it did not reduce sedentary behavior; therefore, targeting these factors is not sufficient to reduce sedentary behavior, and adjunct interventions are needed.

7.
Artigo em Inglês | MEDLINE | ID: mdl-38031623

RESUMO

With recent developments in medical and psychiatric research surrounding pupillary response, cheap and accessible pupillometers could enable medical benefits from early neurological disease detection to measurements of cognitive load. In this paper, we introduce a novel smartphone-based pupillometer to allow for future development in clinical research surrounding at-home pupil measurements. Our solution utilizes a NIR front-facing camera for facial recognition paired with the RGB selfie camera to perform tracking of absolute pupil dilation with sub-millimeter accuracy. In comparison to a gold standard pupillometer during a pupillary light reflex test, the smartphone-based system achieves a median MAE of 0.27mm for absolute pupil dilation tracking and a median error of 3.52% for pupil dilation change tracking. Additionally, we remotely deployed the system to older adults as part of a usability study that demonstrates promise for future smartphone deployments to remotely collect data in older, inexperienced adult users operating the system themselves.

8.
Schizophr Bull ; 48(2): 359-370, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-34665853

RESUMO

OBJECTIVE: Negative symptoms and cognitive impairment in schizophrenia (SZ) remain unmet treatment needs as they are highly prevalent, associated with poor functional outcomes, and resistant to pharmacologic treatment. The current pilot randomized controlled trial examined the efficacy of an integrated Cognitive-Behavioral Social Skills Training and Compensatory Cognitive Training (CBSST-CCT) intervention compared to Goal-focused Supportive Contact (SC) on negative symptoms and cognitive performance. METHODS: Fifty-five adults with SZ or schizoaffective disorder with moderate-to-severe negative symptoms were randomized to receive 25 twice-weekly, 1-h manualized group sessions (12.5 weeks total duration) of either CBSST-CCT or SC delivered by master's level clinicians in five community settings. Assessments of negative symptom severity (primary outcomes) and neuropsychological performance, functional capacity, social skills performance, and self-reported functional ability/everyday functioning, psychiatric symptom severity, and motivation (secondary outcomes) were administered at baseline, mid-treatment, post-treatment, and 6-month follow-up. RESULTS: Mixed-effects models using baseline, mid-treatment, and post-treatment data demonstrated significant CBSST-CCT-associated effects on negative symptom severity, as assessed by the Scale for the Assessment of Negative Symptoms (p = .049, r = 0.22), with improvements in diminished motivation driving this effect (p = .037, r = 0.24). The CBSST-CCT group also demonstrated improved verbal learning compared to SC participants (p = .026, r = 0.36). The effects of CBSST-CCT appeared to be durable at 6-month follow-up. CONCLUSIONS: CBSST-CCT improved negative symptom severity and verbal learning in high-negative-symptom individuals relative to SC. CBSST-CCT warrants larger investigations to examine its efficacy in treating negative symptoms, along with other symptoms, cognition, and, ultimately, real-world functional outcomes. Clinical Trial registration number NCT02170051.


Assuntos
Terapia Cognitivo-Comportamental/métodos , Testes Neuropsicológicos/estatística & dados numéricos , Transtornos Psicóticos/terapia , Adulto , Terapia Cognitivo-Comportamental/estatística & dados numéricos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Transtornos Psicóticos/psicologia , Habilidades Sociais , Resultado do Tratamento
9.
Schizophr Res ; 239: 160-167, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34896870

RESUMO

The objectives of this study are to test the efficacy of Cognitive-Behavioral Social Skills Training (CBSST) in enhancing social function in a sample of older patients with schizophrenia, and to assess whether baseline cognition moderates response to CBSST. To address these objectives, we conducted a randomized controlled trial of 63 participants, randomized 1:1 into CBSST or Treatment-As-Usual (TAU). The setting was a community-based geriatric mental health outpatient clinic in Toronto, Ontario, Canada. Data were collected at baseline, and week 18, 36 and 52, between June 2008 and May 2014. Participants were outpatients, aged 60 or older, with a diagnosis of schizophrenia or schizoaffective disorder and no evidence of dementia or other conditions associated with cognitive or functional impairment. The intervention was a weekly group CBSST for 36 weeks. Cognition, including executive function, was assessed at baseline. Modified total score on the Independent Living Skills Survey (ILSS) at 18, 36, and 52 weeks was the primary outcome measure. In a linear mixed model analysis, the ILSS trajectory was better in the CBSST group than the TAU group, with significantly better function at 36 (Cohen's d = 0.75) and 52 weeks (Cohen's d = 0.92). Baseline executive dysfunction moderated CBSST response, whereby participants with more severe executive dysfunction experienced the most improvement in ILSS. CBSST was efficacious in patients with late-life schizophrenia and prevented decline in social function over a one-year period. CBSST was most beneficial for patients with more severe executive dysfunction, i.e., those who needed skills training the most.


Assuntos
Terapia Cognitivo-Comportamental , Esquizofrenia , Idoso , Cognição , Humanos , Pessoa de Meia-Idade , Ontário , Esquizofrenia/complicações , Esquizofrenia/diagnóstico , Esquizofrenia/terapia , Habilidades Sociais , Resultado do Tratamento
10.
NPJ Schizophr ; 7(1): 62, 2021 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-34887402

RESUMO

Contextual influences on social behavior and affective dynamics are not well understood in schizophrenia. We examined the role of social context on emotions, and the motivation to interact in the future, using dynamic network analysis of ecological momentary assessment (EMA) data. Participants included 105 outpatients with schizophrenia or schizoaffective disorder (SZ) and 76 healthy comparators (HC) who completed 7 days, 7 times a day of EMA. Dynamic networks were constructed using EMA data to visualize causal interactions between emotional states, motivation, and context (e.g., location, social interactions). Models were extended to include the type and frequency of interactions and the motivation to interact in the near future. Results indicated SZ networks were generally similar to HC but that contextual influences on emotion and social motivation were more evident in SZ. Further, feedback loops in HC were likely adaptive (e.g., positive emotions leading to social motivation), but most were likely maladaptive in SZ (e.g., sadness leading to reduced happiness leading to increased sadness). Overall, these findings indicate that network analyses may be useful in specifying emotion regulation problems in SZ and that instability related to contextual influences may be a central aspect of aberrant regulation.

11.
J Clin Psychopharmacol ; 41(3): 236-243, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33783399

RESUMO

BACKGROUND: A significant proportion of people with schizophrenia are characterized by impaired ability to socially engage with others. The development of effective interventions for social functioning remains a central therapeutic challenge. Cognitive-behavioral social skills training (CBSST) has been found to improve social functioning in schizophrenia, but with only medium effect sizes. Intranasal oxytocin also has prosocial effects, but also only with modest effect sizes. This study assessed whether the addition of intranasal oxytocin to CBSST can strengthen their impact on social function. METHODS: Participants (N = 62) with schizophrenia or schizoaffective disorder entered a 24-week, double-blind, placebo-controlled, randomized clinical trial with a 3-month follow-up evaluation at 2 sites: Maryland and San Diego. Participants were randomized to either intranasal oxytocin 36 IU (3 sprays) twice a day (n = 31) or intranasal placebo-oxytocin (3 sprays) twice a day (n = 31). All participants received CBSST plus a social cognition skills training module (48 total sessions). RESULTS: There were no significant treatment group differences in social functioning, positive symptoms, negative symptoms, defeatist beliefs, or asocial beliefs. The interpretation of treatment effects was complicated by site effects, whereby participants in San Diego began the trial with greater severity of impairments and subsequently showed greater improvements compared with participants in Maryland. CONCLUSIONS: The results did not support the utility of add-on intranasal oxytocin to psychosocial rehabilitation interventions like CBSST for improvement in social function (ClinicalTrials.gov trial number: NCT01752712).


Assuntos
Terapia Cognitivo-Comportamental/métodos , Ocitocina/administração & dosagem , Transtornos Psicóticos/cirurgia , Esquizofrenia/terapia , Administração Intranasal , Adulto , Terapia Combinada , Método Duplo-Cego , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Psicóticos/terapia , Habilidades Sociais , Resultado do Tratamento
12.
Early Interv Psychiatry ; 15(6): 1626-1636, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-33398922

RESUMO

AIM: Poor functioning has become a hallmark of many youth at clinical high-risk (CHR) of psychosis. Even for those who do not make the transition to psychosis remain troubled by functional deficits and a decline in functioning increases the odds of transitioning to psychosis. There are very few treatment studies that have attempted to improve social and role functioning. The aim of this paper is to describe the methods of a treatment study to address social and role functioning in CHR. METHODS: This was a randomized controlled trial of cognitive-behavioural social skills training (CBSST) versus a supportive therapy. CBSST combines elements of cognitive behaviour therapy (CBT) and social skills training (SST), two evidence-based treatments for schizophrenia. By adding CBT to SST to target functioning outcomes, SST can be used to train new social skills, and thoughts that interfere with skilled performance in the real world can be addressed using CBT. We developed an adapted version of CBSST, more appropriate for the age range and illness severity of typical CHR individuals, to attempt to show improvements in social and role functioning for these young people. RESULTS: Two hundred and three participants were recruited for this study. Results include initial baseline data. CONCLUSION: This article describes the baseline methodology of a CHR youth who have difficulties in social and/or role functioning. It is one of the first clinical trials to address this significant problem.


Assuntos
Terapia Cognitivo-Comportamental , Transtornos Psicóticos , Esquizofrenia , Adolescente , Cognição , Terapia Cognitivo-Comportamental/métodos , Humanos , Transtornos Psicóticos/psicologia , Transtornos Psicóticos/terapia , Esquizofrenia/terapia , Habilidades Sociais
13.
Am J Psychiatr Rehabil ; 22(3): 168-178, 2021 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-36714045

RESUMO

A pilot study of Veterans with serious mental illness assessed fidelity and preliminary outcomes of peer specialist (PS)-delivered Cognitive-Behavioral Social Skills Training (CBSST). A single-arm, baseline-post pilot involved 4 PSs and 12 Veterans, split between two sites. Five functioning and symptom measures were administered before and after the 12-week intervention. Half of all sessions were rated on a standardized fidelity measure. Four outcomes (symptoms, hope, defeatist attitudes, skill learning) showed statistically significant improvement. Effect sizes and fidelity ratings matched previous trials with the training, and the fidelity ratings exceeded the threshold for competence. Although more research is needed, PSs could improve services for serious mental illness by delivering structured interventions.

14.
Psychol Serv ; 18(1): 33-41, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30855157

RESUMO

This study aimed to identify factors associated with implementation of cognitive behavioral social skills training (CBSST) on assertive community treatment (ACT) teams in a large public sector behavioral health system. This study used concept mapping (a mixed-method approach) and involved a sample including diverse stakeholder participants including patients, ACT team members, team leaders, organization leaders, and system leaders. We identified 14 distinct issues related to implementing CBSST on ACT teams: (a) CBSST fit with ACT structure, (b) CBSST fit with ACT process, (c) provider perceptions about CBSST, (d) staff pressures/other demands; (e) CBSST and ACT synergy, (f) client characteristics, (g) benefits of CBSST, (h) coordination/interaction among ACT providers, (i) government/regulatory factors, (j) integration of CBSST into ACT, (k) training support, (l) training resources, (m) multilevel agency leadership, and (n) provider characteristics. Each of these dimensions were rated in regard to importance and changeability with the top 5 rated dimensions including effective training support; alignment of leadership across levels of the community-based organizations delivering services; perceived benefits of CBSST, CBSST and ACT synergy; and provider perceptions of CBSST. The most critical issues for CBSST implementation on ACT teams should be addressed in future studies. Implementation strategies that capitalize on enhancing leadership and organizational climate hold promise to address all of these issues. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Assuntos
Serviços Comunitários de Saúde Mental , Cognição , Humanos , Liderança , Percepção , Habilidades Sociais
15.
Schizophr Res ; 224: 67-73, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33289659

RESUMO

BACKGROUND: Previous research employing global positioning satellite (GPS) data and ecological momentary assessment (EMA) has shown a smaller life-space (distance traveled from home) was associated with poorer community functioning and more severe negative symptoms in people with schizophrenia. Momentary emotional experiences may influence how much time is spent outside of the home. We evaluated the associations between emotional experiences in relation to life-space among people with schizophrenia compared to healthy controls (HCs). METHODS: 105 participants with schizophrenia and 76 HCs completed in-lab assessments of symptoms, cognition, and functioning. Participants completed EMA assessments of location and emotions seven times daily for seven days at stratified random intervals. GPS coordinates were collected 24 h a day over the 7-day study period. Analyses were performed at the momentary, day, and full week level using mixed effects models and Spearman correlations. RESULTS: For HCs, greater happiness was associated with greater concurrent distance traveled away from home as measured by GPS. For participants with schizophrenia, greater anxiety was associated with greater distance traveled away from home and being outside of the home. Less happiness, but not anxiety, was also associated with greater negative symptoms, especially outside the home. DISCUSSION: These findings suggest diminished positive emotion is associated with the experience of leaving the home in schizophrenia, but also suggest that anxiety may contribute to avoidance of out of home mobility. Interventions targeting both positive emotions and social anxiety may improve social functioning, and life-space may provide a useful outcome for functional rehabilitation interventions in schizophrenia.


Assuntos
Avaliação Momentânea Ecológica , Esquizofrenia , Ansiedade , Emoções , Humanos , Ajustamento Social
16.
JMIR Ment Health ; 7(12): e24406, 2020 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-33258792

RESUMO

BACKGROUND: Negative symptoms are an important unmet treatment need for schizophrenia. This study is a preliminary, open, single-arm trial of a novel hybrid intervention called mobile-assisted cognitive behavioral therapy for negative symptoms (mCBTn). OBJECTIVE: The primary aim was to test whether mCBTn was feasible and could reduce severity of the target mechanism, defeatist performance attitudes, which are associated with experiential negative symptoms and poor functioning in schizophrenia. METHODS: Participants with schizophrenia or schizoaffective disorder (N=31) who met prospective criteria for persistent negative symptoms were enrolled. The blended intervention combines weekly in-person group therapy with a smartphone app called CBT2go. The app extended therapy group skills, including recovery goal setting, thought challenging, scheduling of pleasurable activities and social interactions, and pleasure-savoring interventions to modify defeatist attitudes and improve experiential negative symptoms. RESULTS: Retention was excellent (87% at 18 weeks), and severity of defeatist attitudes and experiential negative symptoms declined significantly in the mCBTn intervention with large effect sizes. CONCLUSIONS: The findings suggest that mCBTn is a feasible and potentially effective treatment for experiential negative symptoms, if confirmed in a larger randomized controlled trial. The findings also provide support for the defeatist attitude model of experiential negative symptoms and suggest that blended technology-supported interventions such as mCBTn can strengthen and shorten intensive psychosocial interventions for schizophrenia. TRIAL REGISTRATION: ClinicalTrials.gov NCT03179696; https://clinicaltrials.gov/ct2/show/NCT03179696.

17.
Schizophr Bull ; 46(5): 1191-1201, 2020 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-32103266

RESUMO

OBJECTIVE: Anhedonia, traditionally defined as a diminished capacity for pleasure, is a core symptom of schizophrenia (SZ). However, modern empirical evidence indicates that hedonic capacity may be intact in SZ and anhedonia may be better conceptualized as an abnormality in the temporal dynamics of emotion. METHOD: To test this theory, the current study used ecological momentary assessment (EMA) to examine whether abnormalities in one aspect of the temporal dynamics of emotion, sustained reward responsiveness, were associated with anhedonia. Two experiments were conducted in outpatients diagnosed with SZ (n = 28; n = 102) and healthy controls (n = 28; n = 71) who completed EMA reports of emotional experience at multiple time points in the day over the course of several days. Markov chain analyses were applied to the EMA data to evaluate stochastic dynamic changes in emotional states to determine processes underlying failures in sustained reward responsiveness. RESULTS: In both studies, Markov models indicated that SZ had deficits in the ability to sustain positive emotion over time, which resulted from failures in augmentation (ie, the ability to maintain or increase the intensity of positive emotion from time t to t+1) and diminution (ie, when emotions at time t+1 are opposite in valence from emotions at time t, resulting in a decrease in the intensity of positive emotion over time). Furthermore, in both studies, augmentation deficits were associated with anhedonia. CONCLUSIONS: These computational findings clarify how abnormalities in the temporal dynamics of emotion contribute to anhedonia.

18.
Contemp Clin Trials Commun ; 17: 100511, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31956722

RESUMO

BACKGROUND: Motivational Interviewing is an evidence-based, client-centred counselling technique that has been used effectively to increase physical activity, including for people with low back pain. One barrier to implementing Motivational Interviewing in health care settings more broadly is the extra treatment time with therapists. The aim of this paper is to describe the design of a cluster randomised controlled trial evaluating the effect of an intervention that pairs Motivational Interviewing embedded into usual physiotherapy care with a specifically designed app to increase physical activity in people with sub-acute low back pain. METHODS: The study is a cluster randomised controlled in which patients aged over 18 years who have sub-acute low back pain (3-12 weeks duration) are recruited from four public hospital outpatient clinics. Based on the recruitment site, participants either receive usual physiotherapy care or the Motivational Interviewing intervention over 6 consecutive weekly outpatient sessions with a specifically designed app designed to facilitate participant-led physical activity behaviour change in between sessions. Outcome measures assessed at baseline and 7 weeks are: physical activity as measured by accelerometer (primary outcome), and pain-related activity restriction and pain self-efficacy (secondary outcomes). Postintervention interviews with physiotherapists and participants will be conducted as part of a process evaluation. DISCUSSION: This intervention, which comprises trained physiotherapists conducting conversations about increasing physical activity with their patients in a manner consistent with Motivational Interviewing as part of usual care combined with a specifically designed app, has potential to facilitate behaviour change with minimal extra therapist time.

19.
Arch Clin Neuropsychol ; 35(4): 347-357, 2020 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-31942632

RESUMO

OBJECTIVE: To examine feasibility, convergent validity and biases associated with a mobile color-word interference test (mCWIT) among older persons living with HIV (PLHIV). METHOD: Over a 14-day period, 58 PLHIV and 32 HIV-uninfected individuals (aged 50-74) completed the mCWIT on smartphones once per day in real-world settings. Participants also completed a comprehensive laboratory-based neuropsychological evaluation. RESULTS: A high rate of compliance was observed (86%) in the repeated administration of the mCWIT. A practice effect was observed in the overall sample concerning mCWIT subscores, and these learning effects were greater for PLHIV. Stabilization of performance was observed after 6 (HIV+) and 7 days (HIV-) for completion time and after 2 (HIV-) and 3 days (HIV+) for mCWIT errors. A minor fatigue effect was observed in the overall sample which was unassociated with group status. Moderate to strong correlations were found between mCWIT completion time and mCWIT errors with global neurocognition and with all of the individual neurocognitive domains. The strongest associations were with mCWIT completion time and laboratory-based global neurocognition, executive function, and working memory scores. CONCLUSIONS: Cognitive testing administered within the context of a person's daily life provides qualitatively different data than neuropsychological testing completed in clinical settings, and it may constitute a more ecologically valid indicator of cognitive performance than traditional methods. Mobile cognitive testing has potential to help characterize real-time cognitive performance and serve as a complementary assessment tool to traditional methods.


Assuntos
Função Executiva , Infecções por HIV , Smartphone , Atividades Cotidianas , Idoso , Idoso de 80 Anos ou mais , Infecções por HIV/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos
20.
Schizophr Bull ; 46(2): 242-251, 2020 02 26.
Artigo em Inglês | MEDLINE | ID: mdl-31504955

RESUMO

Schizophrenia is a major cause of disability worldwide. As new treatments for functioning are tested, the need grows to demonstrate real-world functioning gains. Ecological momentary assessment (EMA) may provide a more ecologically valid measure of functioning. In this study, smartphone-based EMA was used to signal participants with schizophrenia (N = 100) and controls (N = 71) 7 times a day for 7 days to respond to brief questionnaires about social interactions and functioning behaviors. Excellent adherence was found, with both groups completing an average of 85% of surveys and only 3% of participants with schizophrenia excluded for poor adherence. Four-week test-retest reliability was high (r = .83 for total productive behaviors). Relative to controls, participants with schizophrenia reported significantly less total productive activity (d = 1.2), fewer social interactions (d = 0.3), more nonproductive behaviors (d = 1.0; watching TV, resting), and more time at home (d = 0.8). Within the schizophrenia group, participants living independently showed better functioning on EMA relative to participants in supported housing (d = 0.8) and participants engaged in vocational activities showed better functioning than individuals not engaged in vocational activities (d = 0.55). Modest correlations were found between EMA and an in-lab self-report measure of functioning activities performed in the community, but not between EMA and measures of functional capacity or potential. This study demonstrated the feasibility, sensitivity reliability, and validity of EMA methods to assess functioning in schizophrenia. EMA provides a much-needed measure of what individuals with schizophrenia are actually doing in real-world contexts. These results also suggest that there may be important disjunctions between indices of abilities and actual real-world functioning.


Assuntos
Atividades Cotidianas , Avaliação Momentânea Ecológica , Monitorização Ambulatorial , Avaliação de Processos em Cuidados de Saúde , Funcionamento Psicossocial , Esquizofrenia/fisiopatologia , Interação Social , Adulto , Avaliação Momentânea Ecológica/normas , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Aplicativos Móveis , Monitorização Ambulatorial/métodos , Monitorização Ambulatorial/normas , Reprodutibilidade dos Testes
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