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1.
Drug Alcohol Rev ; 42(6): 1566-1576, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-36992616

RESUMO

INTRODUCTION: There are a variety of harms associated with anabolic-androgenic steroids (AAS), with some AAS associated with an increased risk profile for users. Despite potentially different risk profiles, these harms are seldom discussed with respect to specific compounds although recent ethnographic research has identified a need to do so. Specifically, myth has developed among users with trenbolone reportedly having more dramatic effects on individuals, with reports of aggression, violent behaviour and extreme mood disturbances, and this is reflected in extant literature. This paper aims to report on the narrative surrounding the use of trenbolone among AAS users. METHOD: As part of a larger qualitative study, a number of AAS users were interviewed regarding their usage practices. A narrative emerged regarding the physical and psychological harms which accompanied their AAS use of which trenbolone played a central role (N = 16). RESULTS: Of all the AAS, trenbolone was viewed as having the most deleterious consequences for those who used it. Users reported an extreme shift in risk profile for psychosocial harms, particularly increased aggression and violent behaviour, as well as impulsivity regulation issues. AAS-using peers and family members of users reported the readily observable effect of trenbolone. DISCUSSION AND CONCLUSIONS: Users should be cognisant of the potential for significant harms and health-care providers working with this group may consider more focused screening strategies. Future policy decisions regarding AAS may wish to consider the pivotal role trenbolone plays in adverse outcomes for this unique group of substance users.


Assuntos
Anabolizantes , Usuários de Drogas , Transtornos Relacionados ao Uso de Substâncias , Humanos , Acetato de Trembolona , Anabolizantes/efeitos adversos , Transtornos Relacionados ao Uso de Substâncias/psicologia , Congêneres da Testosterona/efeitos adversos , Usuários de Drogas/psicologia , Esteróides Androgênicos Anabolizantes
2.
J Head Trauma Rehabil ; 38(3): 214-230, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35862893

RESUMO

OBJECTIVE: To examine evidence of impairments in physiological reactivity to emotive stimuli following traumatic brain injury (TBI). METHODS: A search of PsychINFO, CINAHL (Cumulative Index to Allied Health Literature), Web of Science, EMBASE (Excerpta Medica dataBASE), and Scopus databases was conducted from 1991 to June 24, 2021, for studies comparing changes in skin conductance or heart rate variability to emotive stimuli between adults with TBI and controls. Two reviewers independently assessed eligibility and rated methodological quality. RESULTS: Twelve eligible studies examined physiological reactivity to laboratory-based emotive stimuli, which included nonpersonal pictures/videos, posed emotion, stressful events, and personal event recall. Overall, 9 reported evidence that individuals with TBI experience lower physiological reactivity to emotive stimuli compared with healthy controls, although the findings varied according to the type and valence of emotional stimuli and physiological parameter. Most studies using nonpersonal pictures or videos found evidence of lower physiological reactivity in TBI participants compared with controls. CONCLUSIONS: Based on laboratory-based studies, individuals with TBI may experience lower physiological reactivity to emotive stimuli. Further research is needed to investigate physiological responses to personally relevant emotional stimuli in real-world settings and to understand the interplay between physiological reactivity, subjective experiences, and behavior.


Assuntos
Lesões Encefálicas Traumáticas , Adulto , Humanos , Frequência Cardíaca/fisiologia , Lesões Encefálicas Traumáticas/diagnóstico , Lesões Encefálicas Traumáticas/psicologia , Emoções/fisiologia , Projetos de Pesquisa , Rememoração Mental
3.
Midwifery ; 116: 103556, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36427386

RESUMO

OBJECTIVE: Complications during pregnancy can negatively impact the physical and psychological wellbeing of mothers. This systematic review aimed to synthesise evidence which has examined the impact of high-risk conditions developed during pregnancy on women's coping, wellbeing, and symptoms of psychopathology. DATA SOURCES: Medline (Ovid), PsycINFO (ProQuest), Scopus, Web of science, AMED (Ebsco), CINAHL (Ebsco) and ProQuest databases were searched in May 2021 with no restrictions on publication date. STUDY SELECTION: English-language literature was reviewed to identify 31 articles. DATA EXTRACTION: Fifteen articles examined Gestational Diabetes Mellitus (GDM: 48%), nine examined multiple high-risk pregnancy conditions (29%), four examined Hypertensive disorders of pregnancy, Preeclampsia (PE: 13%), two did not specify the condition examined (7%), and one examined Pregnancy-Related Acute Kidney Injury (PR-AKI: 3%). The most common study design was quantitative, non-randomised, and survey-based. DATA SYNTHESIS: Twenty-seven articles (87%) reported a high-risk pregnancy resulted in decreased wellbeing and ability to cope, and increased symptoms of psychopathology. The remaining four articles (13%) reported no difference in wellbeing or psychopathology outcomes for women experiencing high-risk compared to healthy pregnancies. Moreover, hypertensive disorders and GDM were associated with ineffective submissive or avoidant coping, reduced wellbeing, and quality-of-life, and exacerbated symptoms of anxiety and depression. CONCLUSION: High-risk pregnancy negatively impacts coping, wellbeing, and psychopathology, and preventive and supportive interventions to mitigate this should focus on empowering women to feel optimistic and in control of their pregnancy. A holistic and culturally sensitive approach is recommended, where pregnant women (and their partners or support people) are involved in healthcare decisions, thus promoting wellbeing, coping, satisfaction, and improved treatment outcome.


Assuntos
Diabetes Gestacional , Gravidez de Alto Risco , Gravidez , Feminino , Humanos , Adaptação Psicológica , Ansiedade/terapia , Diabetes Gestacional/diagnóstico , Gestantes
4.
Psych J ; 12(1): 5-16, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36104300

RESUMO

Empathy is sharing and understanding others' emotions. Recently, researchers identified larger Western-Asian cultural differences in self-report empathy with females relative to males (i.e., the culture-sex interaction theory). Neglecting this phenomenon, previous researchers focused on identifying the cultural impact on empathy per se and reported divergent results. This meta-analysis aims to reveal the heterogeneity of the earlier publications and decode the heterogeneity as per the culture-sex interaction. The current results suggested the following: First, the cultural impact on empathy increased along with three sex stratification categories (male-only, mixed-sex, and female-only, in that order). Second, the effect size statistically differed between the binary classifications of sex (female-only > male-only). Third, the mixed-sex samples' effect size was positively regressed on the samples' sex ratio (i.e., percentage of females). The current results revealed the heterogeneity of previous publications and highlighted the significance of the culture-sex interaction effect on empathy for future investigations.


Assuntos
Emoções , Empatia , Humanos , Masculino , Feminino , Autorrelato
5.
Virtual Real ; 27(2): 541-551, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35910716

RESUMO

Technologies such as virtual reality (VR), an immersive computer-based environment that induces a feeling of mental and physical presence, are becoming increasingly popular for promoting participation in exercise. The purpose of this study was to explore changes in motivation and other psychological states when the physique of an exercise companion was altered during a VR-based exercise task, and whether trait social physique anxiety (SPA) altered these effects. Using a mixed experimental design, female participants (N = 43) categorised as high or low in SPA participated in two counterbalanced 10-min running tasks within a VR environment where the exercise companion was either overweight or in-shape. Across both running tasks, individuals with high SPA reported higher negative affect, pressure and tension, and lower perceived competencies, than those with low SPA. Pressure and tension were also higher when exercising with an in-shape companion than with an overweight companion for all participants. In addition, participants with high SPA reported a stronger preference to exercise with an overweight companion than those with low SPA in a real exercise setting, but not in a VR setting. The findings suggest that the physique of an exercise companion and the SPA of an exerciser have important, but independent, psychosocial effects during exercise. That an in-shape physique of a virtual exercise companion was not a deterrent among those with high SPA has provided preliminary evidence that VR-based exercise may be helpful among females who worry about their appearance or feel self-conscious while exercising.

6.
Front Hum Neurosci ; 16: 905491, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35782049

RESUMO

Prospective memory (PM) is the ability to perform a planned action at an intended future time. This study examined the neural correlates of PM using functional near-infrared spectroscopy (fNIRS). This study employed a within-participants design. A laboratory PM task was adapted for use with fNIRS to investigate regions of interest and levels of brain activation during task performance in 32 participants (63% female, Mage = 21.31 years, SDage = 4.62 years). Participants first completed a working memory (WM) task (N-back ongoing task) followed by a WM plus PM task while neural activity was measured using fNIRS. Behavioral results revealed an interference effect for reaction time on the WM task, whereby participants were significantly slower to respond in the WM plus PM task compared to the WM task. Ongoing task accuracies did not differ between the two conditions. fNIRS results revealed a higher level of neural activity in the fronto-polar prefrontal cortex and dorsolateral prefrontal cortex in the WM plus PM task compared to the WM Condition. These findings highlight that fNIRS is a suitable tool for studying and understanding the neural basis of PM.

7.
Front Psychol ; 13: 905860, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35837619

RESUMO

Prospective memory (PM) is the ability to perform a planned action at a future time, while carrying on with other unrelated tasks. Implementation Intentions (II) is a promising metacognitive strategy for improving PM in older adults, though its generalization and longer-term effects are not well-understood. We examined the effects of II on PM in 48 community-dwelling older adults (77% female, M age = 71.52) and 59 young adults (75% female, M age = 19.86). Participants were randomly allocated to a conventional instruction or II group and administered a laboratory-based PM task in the first session. In the second session, participants returned to complete a similar but new laboratory-based PM task and an ecological PM task without prompts to use a strategy. We found strong age effects on PM performance whereby older adults performed worse than young adults across all PM tasks. While the overall facilitation effect of II was not statistically significant, there was a trend that this strategy facilitated PM performance on the laboratory-based PM task in the first session for older adults with a medium sized effect (d = 0.37). The generalization and longer-term effect of II were not significant for either the similar laboratory-based or the ecological PM task. These results suggest that a single-session II intervention may not be sufficient to elicit transfer to other similar new PM tasks in healthy populations.

8.
PLoS One ; 17(6): e0268460, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35675309

RESUMO

Exercise is beneficial for physical and psychological health, yet the majority of Australian adults are not sufficiently active to gain health benefits. Novel methods are needed to enhance the experience of exercise and ultimately exercise participation. The present study examined performance and psychological experiences during a (non-immersive) virtual reality cycling task that incorporated affective feedback. Female participants (N = 137, university students) received either positive, negative, or neutral virtual feedback while cycling on a stationary bicycle in a virtual reality laboratory environment under the instruction to maintain at least 70% of their maximal heart rate for as long as possible (or up to 30 minutes). Participants also responded to measures of affect, motivation, enjoyment, and competitiveness. Data were analysed with ANOVA's performed with feedback groups and trait competitiveness for the psychological and performance dependent measures. Results showed that positive feedback elicited greater interest and enjoyment during the task than neutral and negative feedback. In addition, perceived competence was greater with positive feedback than for neutral and negative feedback in low competitive participants. The type of feedback did not affect performance (cycling persistence, perceived exertion, and effort). The findings indicate the potential importance of providing positive virtual feedback and considering the interaction of individual difference factors, specifically competitiveness, to enhance virtual exercise experiences.


Assuntos
Realidade Virtual , Adulto , Austrália , Ciclismo/psicologia , Exercício Físico/psicologia , Retroalimentação , Feminino , Humanos
9.
Front Psychol ; 13: 812483, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35197904

RESUMO

Despite evidence from cognitive psychology that men and women are equal in measured intelligence, gender differences in self-estimated intelligence (SEI) are widely reported with males providing systematically higher estimates than females. This has been termed the male hubris, female humility effect. The present study explored personality factors that might explain this. Participants (N = 228; 103 male, 125 female) provided self-estimates of their general IQ and for Gardner's multiple intelligences, before completing the Cattell Culture Fair IQ test as an objective measure of intelligence. They also completed the Bem Sex Role Inventory (BSRI) as a measure of sex-role identification, and measures of general and academic self-esteem. Both gender and sex-role differences were observed for SEI, with males and participants of both genders who scored high in masculinity offering higher self-estimates. By comparing estimated and observed IQ, we were able to rule out gender differences in overall accuracy but observed a pattern of systematic underestimation in females. An hierarchical multiple regression showed significant independent effects of gender, masculinity, and self-esteem. Mixed evidence was observed for gender differences in the estimation of multiple intelligences, though moderately sized sex-role differences were observed. The results offer a far more nuanced explanation for the male hubris, female humility effect that includes the contribution of sex role identification to individual and group differences.

10.
Front Psychol ; 12: 691752, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34220653

RESUMO

Prospective memory (PM) is the ability to perform a planned action at a future time. Older adults have shown moderate declines in PM, which are thought to be driven by age-related changes in the prefrontal cortex. However, an age-PM paradox is often reported, whereby deficits are evident in laboratory-based PM tasks, but not naturalistic PM tasks. The key aims of this study were to: (1) examine the age-PM paradox using the same sample across laboratory and ecological settings; and (2) determine whether self-reported PM and cognitive factors such as working memory and IQ are associated PM performance. Two PM tasks were administered (ecological vs. laboratory) to a sample of 23 community-dwelling older adults (Mage = 72.30, SDage = 5.62) and 28 young adults (Mage = 20.18, SDage = 3.30). Participants also completed measures of general cognitive function, working memory, IQ, and self-reported memory. Our results did not support the existence of the age-PM paradox. Strong age effects across both laboratory and ecological PM tasks were observed in which older adults consistently performed worse on the PM tasks than young adults. In addition, PM performance was significantly associated with self-reported PM measures in young adults. For older adults, IQ was associated with time-based PM. These findings suggest that the age-PM paradox is more complex than first thought and there are differential predictors of PM performance for younger and older adults.

11.
Front Psychol ; 12: 561930, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33995162

RESUMO

Empathy is sharing and understanding others' emotions. Recently, researchers identified a culture-sex interaction effect in empathy. This phenomenon has been largely ignored by previous researchers. In this study, the culture-sex interaction effect was explored with a cohort of 129 participants (61 Australian Caucasians and 68 Chinese Hans) using both self-report questionnaires (i.e., Empathy Quotient and Interpersonal Reactivity Index) and computer-based empathy tasks. In line with the previous findings, the culture-sex interaction effect was observed for both trait empathy (i.e., the generalized characteristics of empathy, as examined by the self-report questionnaires) and state empathy (i.e., the on-spot reaction of empathy for a specific stimulus, as evaluated by the computer-based tasks). Moreover, in terms of state empathy, the culture-sex interaction effect further interacted with stimulus traits (i.e., stimulus ethnicity, stimulus sex, or stimulus emotion) and resulted in three- and four-way interactions. Follow-up analyses of these higher-order interactions suggested that the phenomena of ethnic group bias and sex group favor in empathy varied among the four culture-sex participant groups (i.e., Australian female, Australian male, Chinese female, and Chinese male). The current findings highlighted the dynamic nature of empathy (i.e., its sensitivity toward both participant traits and stimulus features). Furthermore, the newly identified interaction effects in empathy deserve more investigation and need to be verified with other Western and Asian populations.

12.
Biol Psychol ; 162: 108085, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33775735

RESUMO

The type and number of dependent measures assessed have varied between fear conditioning and extinction experiments and it remains unclear whether methodological differences influence results. Measuring skin conductance responses (SCRs) and between-phase subjective ratings between four conditions; Con condition had no within-phase ratings; US Exp condition included within-phase US expectancy ratings only; CS Eval condition included within-phase CS evaluations only and All Meas condition included both. All Meas condition exhibited larger SCRs compared to other conditions during acquisition, extinction, and return of differential responding at test. Differential SCRs did not extinguish in CS Eval and Con conditions, and CS Eval condition exhibited smaller CS- SCRs than other conditions throughout phases. US Exp condition revealed differential conditioning, successful extinction, and no return of differential SCRs. Between-phase ratings were not affected by within-phase ratings. Researchers should consider assessing different combinations of within-phase subjective ratings depending on the aims of their research.


Assuntos
Condicionamento Clássico , Extinção Psicológica , Medo , Resposta Galvânica da Pele , Humanos
13.
Soc Cogn Affect Neurosci ; 16(4): 345-369, 2021 03 24.
Artigo em Inglês | MEDLINE | ID: mdl-33528022

RESUMO

Functional neuroimaging provides an avenue for earlier diagnosis and tailored treatment of psychological disorders characterised by emotional impairment. Near-infrared spectroscopy (NIRS) offers ecological advantages compared to other neuroimaging techniques and suitability of measuring regions involved in emotion functions. A systematic review was conducted to evaluate the capacity of NIRS to detect activation during emotion processing and to provide recommendations for future research. Following a comprehensive literature search, we reviewed 85 journal articles, which compared activation during emotional experience, regulation or perception with either a neutral condition or baseline period among healthy participants. The quantitative synthesis of outcomes was limited to thematical analysis, owing to the lack of standardisation between studies. Although most studies found increased prefrontal activity during emotional experience and regulation, the findings were more inconsistent for emotion perception. Some researchers reported increased activity during the task, some reported decreases, some no significant changes, and some reported mixed findings depending on the valence and region. We propose that variations in the cognitive task and stimuli, recruited sample, and measurement and analysis of data are the primary causes of inconsistency. Recommendations to improve consistency in future research by carefully considering the choice of population, cognitive task and analysis approach are provided.


Assuntos
Emoções/fisiologia , Espectroscopia de Luz Próxima ao Infravermelho/métodos , Neuroimagem Funcional , Voluntários Saudáveis , Humanos , Fenômenos Fisiológicos do Sistema Nervoso
14.
Psychol Rep ; 124(6): 2587-2612, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33081583

RESUMO

Laboratory-based aversive conditioning studies have reliably induced fear toward an image of an outgroup member by pairing the image with a fear-inducing, aversive stimulus. However, laboratory-based studies have been criticized for being simplistic in comparison to the complexities of the real world. The current study is the first to apply an aversive conditioning framework to explain the formation of intergroup fear and subsequent anxiety toward, and avoidance of, the outgroup outside the laboratory. Two samples recalled details of their first negative encounter with an African American (N = 554) or Muslim (N = 613) individual, respectively. Congruent with learning theory, participants who reported an unpleasant event with an outgroup member reported more fear during the encounter than did those who did not report experiencing an unpleasant event. Additionally, the intensity of unpleasantness during the first encounter indirectly predicted outgroup avoidance, via retrospectively recalled fear and current levels of intergroup anxiety.


Assuntos
Transtornos de Ansiedade , Condicionamento Clássico , Ansiedade , Aprendizagem da Esquiva , Medo , Humanos , Estudos Retrospectivos
15.
Schizophr Res ; 215: 120-125, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31784339

RESUMO

Patients with schizophrenia (SCZ) consistently show prospective memory (PM) impairments, and the technique of implementation intentions has been shown to improve PM performance in these patients. PM is considered to have prospective and retrospective components. However, it remains unclear which component of PM is impaired in patients with SCZ and which component(s) is facilitated by implementation intentions (II). The present study aimed to examine these two issues. Forty-two patients with SCZ and 42 matched healthy controls were randomly assigned to an II group or a typical instruction group. All participants were administered a color-matching PM task. Results showed that, using a multinomial-modeling approach, patients with SCZ exhibited impairment in the retrospective component of PM. In addition, while II improved the prospective PM component in healthy controls, both prospective and retrospective PM components in patients with SCZ were improved. Together, our results shed light on the mechanism of PM impairment in SCZ patients and the mechanism of II in improving PM performance.


Assuntos
Disfunção Cognitiva/fisiopatologia , Objetivos , Intenção , Transtornos da Memória/fisiopatologia , Memória Episódica , Rememoração Mental/fisiologia , Esquizofrenia/fisiopatologia , Adulto , Disfunção Cognitiva/etiologia , Feminino , Humanos , Masculino , Transtornos da Memória/etiologia , Pessoa de Meia-Idade , Modelos Estatísticos , Desempenho Psicomotor/fisiologia , Esquizofrenia/complicações
16.
Front Psychol ; 10: 396, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30914986

RESUMO

Empathy is the ability to understand and share other people's emotions. Researchers have debated whether Westerners and Asians differ in their self-report empathy. This study aimed to replicate a previously reported culture-sex interaction in self-report empathy using Australian and Mainland Chinese participants, to investigate the cultural differences in self-report empathy in each sex group, and to verify the moderated mediating effects of three empathy-related traits (i.e., independent self-construal, interdependent self-construal, and personal distress) on the cultural differences in self-report empathy in both sex groups. In this study, scores on two self-report questionnaires of empathy, namely, the Empathy Quotient (EQ) and the Interpersonal Reactivity Index (IRI), were compared between 196 Australian Caucasian (101 males) and 211 Mainland Chinese (59 males) university students. Results first confirmed the significant culture-sex interaction and illustrated that the cultural differences in empathy scores were significant only for female (i.e., Australian females had higher scores than Mainland Chinese females) but not for male participants. Furthermore, results of moderated mediation analyses indicated that higher self-report empathy in both females and males was related to higher interdependent self-construal (exhibited by Mainland Chinese) and less personal distress (exhibited by Australians), and particularly in females, also related to higher independent self-construal (exhibited by Australian females). The current study is one of few studies that suggest cultural differences in empathy are dependent on the sex of the participant. Moreover, the current findings have added new insights into the explanation of cultural differences in empathy using personal distress and self-construal.

17.
Artigo em Inglês | MEDLINE | ID: mdl-33344931

RESUMO

The way an athlete focuses their attention when lifting a weight has the potential to influence strength development during training and performance outcomes during competition. The effects of attentional focus strategies during weightlifting tasks was investigated through a systematic review. Major databases (SportDISCUS, PsycINFO, Scopus) were searched using key terms relevant to attentional focus and weightlifting and reference lists of identified articles were also searched. Following screening, 16 articles were retained for analysis. The review showed that researchers have recruited experienced and novice weightlifters of both genders in their studies, although male experienced weightlifters are the most commonly studied demographic. Weightlifting tasks have varied from bench press, biceps curls, squats, and leg extensions with some studies using measures of force production against a force plate. The predominant manipulations have been between internal-associative and external-associative foci. An external attentional focus has shown to be beneficial in terms of movement economy as reflected in a variety of outcome measures. The results are interpreted within the framework provided by the Constrained Action Hypothesis and more generally the advantages of an external attentional focus for motor skill learning. An external focus of attention promotes automatic control of actions, thus preventing the motor system being constrained by conscious cognitive control. Implications for informing training programs for athletes and for advising athletes to maximize performance during competition are discussed.

18.
Am Psychol ; 74(4): 445-458, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30234314

RESUMO

A frequently observed research finding is that females outperform males on tasks of verbal and language abilities, but there is considerable variability in effect sizes from sample to sample. The gold standard for evaluating gender differences in cognitive ability is to recruit a large, demographically representative sample. We examined 3 decades of U.S. student achievement in reading and writing from the National Assessment of Educational Progress to determine the magnitude of gender differences (N = 3.9 million), and whether these were declining over time as claimed by Feingold (1988). Examination of effect sizes found a developmental progression from initially small gender differences in Grade 4 toward larger effects as students progress through schooling. Differences for reading were small-to-medium (d = -.32 by Grade 12), and medium-sized for writing (d = -.55 by Grade 12) and were stable over the historical time. Additionally, there were pronounced imbalances in gender ratios at the lower left and upper right tails of the ability spectrum. These results are interpreted in the context of Hyde's (2005) gender similarities hypothesis, which holds that most psychological gender differences are only small or trivial in size. Language and verbal abilities represent one exception to the general rule of gender similarities, and we discuss the educational implications of these findings. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Assuntos
Sucesso Acadêmico , Alfabetização , Leitura , Caracteres Sexuais , Estudantes , Avaliação Educacional , Feminino , Humanos , Masculino , Fatores Sexuais , Estados Unidos
19.
Behav Res Ther ; 112: 42-62, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30502721

RESUMO

Fear extinction studies in youth have yielded mixed results due to developmental processes and variations in design, methodology and dependent measures. This systematic review focused on studies with healthy youth between 2 and 17 years of age to identify experimental parameters of studies documenting extinction effects. Thirty-five studies met inclusion criteria and the following themes emerged (a) some studies employed parameters and task demands that are complex and require active participant involvement whereas others involved simple stimulus configurations and passive participant involvement, and (b) variation exists among dependent measures in units of measurement, timing and type of measurement. The review identified that studies using geometric shape conditioned stimuli (CS) paired with a tone unconditioned stimulus (US) (e.g., metal scraping on slate), as well as face CSs with a scream US produced the most reliable extinction effects, although the latter combination may be associated with higher drop-out than shape CSs and a tone US. The most commonly used and effective dependent measures for revealing extinction effects were skin conductance responses (SCR) and subjective ratings (SR) of CS valence, fearfulness and arousal. Fear potentiated startle (FPS) blink reflexes were also an effective but less commonly used measure. It is recommended that future studies use shape CSs and the metal scraping on slate US in studies involving children and either shape CSs and the metal scraping on slate US or face CSs paired with a scream US with adolescents. It is also recommended that US expectancy ratings and CS evaluations are assessed trial-by-trial and between-phase, and that startle-eliciting stimuli to measure startle blink reflexes are delivered on every second trial per CS so that SCR and FPS can be examined. However, further research is required to determine whether increased participant involvement due to providing trial-by-trial and between-phase ratings of the CSs and US differentially influences responding, particularly in children relative to adolescents and adults.


Assuntos
Ansiedade , Condicionamento Clássico , Extinção Psicológica , Medo , Projetos de Pesquisa/normas , Adolescente , Nível de Alerta , Criança , Pré-Escolar , Humanos , Reflexo de Sobressalto
20.
Schizophr Res ; 206: 378-385, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30366712

RESUMO

The beneficial effect of implementation intentions (II) on prospective memory (PM) deficits in patients with schizophrenia has been reported. However, these studies were limited to brief interventions such that the transfer and long-term effects of II training remains unclear. This study examined whether a 10-session II programme could improve PM performance, social functioning and functional capacity in patients with schizophrenia immediately after training and at 3-month follow-up. Patients with schizophrenia (n = 42) recruited from the community were randomly assigned to II training (n = 21) or treatment as usual (TAU) (n = 21). Participants in the II group learned the verbal and imagery component of II and were encouraged to apply these strategies in their daily lives. We found that the II group performed better than the TAU group on computer-based PM tasks and a daily life PM task (telephone call at specified date and time) at post-treatment and at 3-month follow-up. The II group also exhibited better working ability than the TAU group at post-treatment. Our results suggest that the II intervention programme may have lasting beneficial effects in PM performance and significant transfer effects to functional capacity in schizophrenia patients.


Assuntos
Transtornos da Memória/terapia , Memória Episódica , Psicoterapia de Grupo/métodos , Esquizofrenia/terapia , Adulto , Feminino , Seguimentos , Humanos , Intenção , Masculino , Transtornos da Memória/psicologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Psicologia do Esquizofrênico , Comportamento Social , Resultado do Tratamento
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