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1.
Mil Psychol ; : 1-17, 2023 Nov 03.
Artículo en Inglés | MEDLINE | ID: mdl-37921694

RESUMEN

A simulation was conducted to examine the decision making of 102 high-ranking police and military commanders (male/female = 88/12, mean years of employment = 22.15) engaged in a simulated hybrid attack on Norway. Four 2 × 3 repeated-measures ANOVA tests were performed, with two groups (police, military) and three phases (peace, war, and post-conflict) as independent variables. The decision tasks of force posture and mission urgency, along with Subject Matter Expert (SME) ratings of decision-making performance, served as dependent variables. By using social cognitive theory as the theoretical framework, the analysis demonstrated within-group effects indicating how the transition from peace to war caused more offensive postures, higher urgency levels, and increased performance in wartime. Between-group differences were also found, illustrating that police commanders had higher levels of urgency than military commanders in general. Regarding force posture, within-group differences were only found in the post-conflict phase, when police commanders returned to pre-war levels, while military commanders showed less offensive postures than in peacetime. No significant between-group differences were found in decision-making performance. The analysis demonstrated new empirical findings about how crisis management is impacted by change and the backgrounds of those in charge. The findings have implications for designing interagency frameworks that improve police-military interoperability in collaborative efforts.

2.
Scand J Psychol ; 63(1): 39-46, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34676897

RESUMEN

The personality disposition hardiness has been shown to be associated with adaptive coping strategies and is considered an important protective factor against development of mental health symptoms. One of the criticisms found in the hardiness literature concerns the question whether the construct is equally important for men and women. Using a prospective design in a moderated mediation model, regression analyses were performed to examine the effect of avoidance coping in the association between hardiness and mental distress. The effect of biological sex was examined in the association between hardiness and avoidance coping. Our sample included 410 civilian personnel employed in a military organization. The results showed that higher hardiness levels were associated with lower reported use of avoidance coping, which in turn was associated with lower levels of distress symptoms. Avoidance coping mediated the effect of hardiness on anxiety symptoms and this indirect effect was not moderated by biological sex. These results indicate that hardiness operates similarly for women and men as a factor influencing mental distress symptoms.


Asunto(s)
Trastornos Mentales , Personal Militar , Resiliencia Psicológica , Adaptación Psicológica , Femenino , Humanos , Masculino , Estudios Prospectivos
3.
Scand J Psychol ; 60(3): 243-251, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30841013

RESUMEN

There is a lack of research on the relation between obsessive-compulsive disorder (OCD) and resilience. Dispositional resilience, as described and defined in literature on hardiness, consists of three facets, namely beliefs about having control in everyday living, having a sense of purpose or commitment, and a positive attitude toward challenges. This study explores associations between dispositional resilience (measured with the Dispositional Resilience Scale (DRS-15-R)), symptom severity, and treatment outcome in a sample of 89 patients treated with concentrated exposure therapy (cET), and compares the findings with scores from two reference groups (students and soldiers). The patient group had significantly lower resilience scores than the two reference groups. Weak correlations were observed between dispositional resilience and OCD symptoms. Differences in dispositional resilience were weakly related to remission status at follow-up (odds ratio of 1.11). Furthermore, resilience improved from pre- to post-treatment (Cohen's d of 0.65). Our results imply that patients' initial resilience score does not hinder nor facilitate treatment effects to a great extent in this format of ERP treatment.


Asunto(s)
Trastorno Obsesivo Compulsivo/terapia , Optimismo , Aceptación de la Atención de Salud/psicología , Personalidad/fisiología , Resiliencia Psicológica , Adolescente , Adulto , Femenino , Humanos , Terapia Implosiva/métodos , Masculino , Trastorno Obsesivo Compulsivo/psicología , Resultado del Tratamiento , Adulto Joven
4.
Scand J Psychol ; 56(5): 560-6, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26079844

RESUMEN

A large number of studies have shown that hardiness and cohesion are associated with mental health in a military context. However, most of them are presented without controlling for baseline mental health symptoms, which is their most significant source of error. The present study investigates the combined effect of hardiness and cohesion in a prospective design, controlling for baseline levels of symptoms among Norwegian personnel serving in a peacekeeping operation in Kosovo. Multivariate regression analyses were performed in which self-reported mental health complaints were regressed on our explanatory variables. Our findings suggest that both cohesion and hardiness contributed to increased stress resiliency, as measured by a lower level of reported mental health complaints. Our baseline measure of mental health accounted for a larger proportion of the variance than our other predictors. A significant interaction between cohesion and hardiness suggested a combined effect, over and above the individual contributions of the predictors. For individuals who scored high on hardiness, cohesion levels did not influence levels of mental health complaints. Individuals who scored low on hardiness, on the other hand, reported lower levels of mental health complaints when cohesion levels were high.


Asunto(s)
Trastornos Mentales/psicología , Personal Militar/psicología , Resiliencia Psicológica , Sentido de Coherencia , Adulto , Femenino , Humanos , Masculino , Noruega , Estudios Prospectivos , Adulto Joven
5.
Scand J Psychol ; 55(6): 585-92, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24954681

RESUMEN

The capacity to interpret others people's behavior and mental states is a vital part of human social communication. This ability, also called mentalizing or Theory of Mind (ToM), may also serve as a protective factor against aggression and antisocial behavior. This study investigates the relationship between two measures of psychopathy (clinical assessment and self-report) and the ability to identify mental states from photographs of the eye region. The participants in the study were 92 male inmates at Bergen prison, Norway. The results showed some discrepancy in connection to assessment methodology. For the self-report (SRP-III), we found an overall negative association between mental state discrimination and psychopathy, while for the clinical instrument (PCL-R) the results were more mixed. For Factor 1 psychopathic traits (interpersonal and affective), we found positive associations with discrimination of neutral mental states, but not with the positive or negative mental states. Factor 2 traits (antisocial lifestyle) were found to be negatively associated with discrimination of mental states. The results from this study demonstrate a heterogeneity in the psychopathic construct where psychopathic traits related to an antisocial and impulsive lifestyle are associated with lower ability to recognize others' mental states, while interpersonal and affective psychopathic traits are associated with a somewhat enhanced ability to recognize others' emotional states.


Asunto(s)
Trastorno de Personalidad Antisocial/psicología , Teoría de la Mente/fisiología , Adulto , Anciano , Emociones , Humanos , Masculino , Persona de Mediana Edad , Noruega , Prisioneros/psicología , Adulto Joven
6.
Psychol Health Med ; 18(6): 705-13, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23458268

RESUMEN

Psychological hardiness characterizes people who remain healthy under psychosocial stress. The present exploratory study investigates possible links between hardiness and several immune and neuroendocrine markers: IL-6, IL-12, IL-4, IL-10, & neuropeptide-Y. A total of 21 Norwegian navy cadets were studied in the context of a highly stressful military field exercise. Blood samples were collected midway, and again late in the exercise when stress levels were highest. Psychological hardiness (including commitment, control, and challenge) was measured two days before the exercise. While all subjects scored high in hardiness, some were high only in commitment and control, but relatively low in challenge. These "unbalanced" hardiness subjects were also more stress reactive, showing suppressed proinflammatory cytokines (IL-12), increased anti-inflammatory cytokines (IL-4, IL-10), and lower neuropeptide-Y levels as compared to the hardiness-balanced group. This study thus shows that being high in hardiness with a balanced profile is linked to more moderate and healthy immune and neuroendocrine responses to stress.


Asunto(s)
Interleucinas/metabolismo , Personal Militar/psicología , Neuropéptido Y/metabolismo , Resiliencia Psicológica , Estrés Psicológico/metabolismo , Adaptación Psicológica , Análisis de Varianza , Biomarcadores/metabolismo , Síndrome de Adaptación General , Humanos , Estrés Psicológico/psicología , Factores de Tiempo
7.
Psychol Rep ; 112(2): 445-57, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23833874

RESUMEN

The goal of the study was to investigate the relationship between Hare's four-facet model of psychopathy and the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) in a forensic, culturally homogenous sample. 22 male prisoners from Bergen Prison participated. There was only a statistically significant negative zero-order correlation between the total PCL-R score and the score on the Depression scale of the MMPI-2. However, the results revealed that the four facets had different underlying correlates with negative affectivity. Overall, Facets 1 and 2 showed a tendency toward a negative relationship with the clinical scales on the MMPI-2, while Facets 3 and 4 had a positive relationship. Interestingly, partial correlations showed that Facet 4 of PCL-R was the only facet that correlated statistically significantly with the scores on the Psychopathic Deviate scale of the MMPI-2.


Asunto(s)
Trastorno de Personalidad Antisocial/diagnóstico , Trastorno de Personalidad Antisocial/psicología , MMPI/estadística & datos numéricos , Inventario de Personalidad/estadística & datos numéricos , Prisioneros/psicología , Psicometría/estadística & datos numéricos , Adulto , Humanos , Masculino , Persona de Mediana Edad , Modelos Psicológicos , Noruega , Proyectos Piloto , Reproducibilidad de los Resultados , Adulto Joven
8.
Front Psychol ; 14: 1238760, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38187420

RESUMEN

Purpose: This study aimed to examine the applicability of Bandura's social cognitive theory in predicting organizational performance in dynamic and ambiguous hybrid warfare contexts. Specifically, the study investigated the influence of dyad composition, past performance in peacetime, collective self-efficacy, and persistence on wartime performance among high-ranking police and military commanders. Study design/methodology/approach: One hundred and thirty-eight participants, consisting of police and military commanders, took part in a simulation exercise that escalated from peace to war. The participants were assigned to three types of dyads (N = 69); all-police (n = 20), all-military (n = 27), and mixed police-military (n = 22). The study utilized path analysis to examine the direct and indirect effects of the variables on wartime performance. Results: The model developed in this study accounted for 54% of the variance in wartime performance (R2 = 0.54). Path analysis showed direct effects of persistence (ß = -0.33) and peacetime performance (ß = 0.45) on actual performance in wartime. Direct effects also showed how persistence was predicted by dyad composition (ß = -0.24) and peacetime performance (ß = -0.50). Indirect effects indicated how persistence mediated the effects of peacetime performance (ß = 0.17) and dyad composition (ß = 0.08) on actual performance in wartime. Originality/value: This study contributes to the understanding of how social cognitive factors, as described by Bandura's theory, can predict decision outcomes in collaborative crisis response settings involving police and military commanders. The findings have implications for policy-making and provide recommendations for further research in this area.

9.
Front Med (Lausanne) ; 10: 1291877, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38162887

RESUMEN

Objective: High-quality healthcare services is delivered by teams rather than individuals and depends heavily on multidisciplinary cooperation between dispersed healthcare professionals. The aim of this scoping review is to identify common barriers and innovative applications of technology supporting team processes and patient safety, in geographically dispersed healthcare services. Methods: Studies were identified from searches in APA PsychINFO, Epistemonikos and Medline databases, from 2010 to 2023. A detailed search strategy was performed, and studies were included, based on prior established criteria. Results: Among the 19 studies that fulfilled our inclusion criteria, the majority (85%) were from Europe or North America, and most studies (53%) were quantitative, with a cross-sectional study design. Several reported observed distributed team processes in training and education. Most studies described barriers and detailed how innovative approaches and technological solutions were introduced to improve communication, coordination, and shared mental models in distributed healthcare settings. A small proportion of studies (16%) used health services data to examine interpersonal exchange and team processes. Conclusion: The scoping review offer recommendations to enhance future research on distributed team processes in healthcare services.

10.
Front Psychol ; 14: 1041387, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36818135

RESUMEN

The crisis triggered by Covid-19 has exposed the interdependencies of modern society and sparked interest in local response to protracted and complex crisis situations. There has been a growing awareness and interest in the key roles of political and professional stakeholders, their emotional regulation and how they influence team performance and outcomes in dealing with uncertainty and complex crisis situations. While cognitive and behavioral aspects of crisis leadership are well researched, less is understood about how one can mitigate negative emotions, instill trust, or restore public faith and support of security forces and emergency response teams during crises. In addressing this gap, we propose a simplified conceptual roadmap for research and training of local crisis leadership. In this, we emphasize complex problem solving, team interaction, team context and technology and team training design. These four factors represent significant barriers if neglected. On the other side, they may be considerable force multipliers when better understood and managed. We suggest how seven research and training questions could be linked to the four conceptual factors and guide an evidence-based approach to develop local crisis leadership.

11.
Front Psychol ; 13: 754855, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35356330

RESUMEN

In recent decades there has been an increased emphasis on non-technical skills in medical teams. One promising approach that relates teamwork to medical efficiency is the theory of Shared Mental Models (SMM). The aim of the present study was to investigate the suitability of the Shared Mental Model approach for teamwork between operators in emergency medical communication centers and the first line ambulance personnel in real-life settings. These teams collaborate while working from geographically dispersed positions, which makes them distinct from the kinds of teams examined in most previous research on team effectiveness. A pressing issue is therefore whether current models on co-located teams are valid for medical distributed teams. A total of 240 participants from 80 emergency medical teams participated in the study. A team effectiveness model was proposed based on identified team coordinating mechanisms and the "Big five" team processes. Path analyses showed that SMM was positively associated with team effectiveness (i.e., performance satisfaction and situational awareness) and negatively related to mission complexity. Furthermore, the coordinating mechanisms of SMM and Closed Loop Communication was positively related to "Big five" team scores. However, no effects were found for the "Big five" team processes on effectiveness, which could indicate that the model needs to be adjusted for application to geographically dispersed teams. Possible implications for team training of distributed emergency response teams are discussed.

12.
Scand J Psychol ; 52(3): 268-76, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21244436

RESUMEN

This study examined the role of adult attachment and personality in relation to antisocial tendencies (i.e. convictions for violence and interpersonal problems in romantic relationships) in Norwegian prison inmates (N=92). Attachment styles and personality were measured using self-report questionnaires (RSQ; Griffin & Bartholomew, 1994; and NEO-FFI, Costa & McCrae, 1992a). The prison inmates scored higher on avoidant than on anxious attachment style. While age and agreeableness (negatively associated) emerged as significant predictors of violence, anxious attachment explained most of the variances in aggression in intimate relationships. The study suggests that different types of antisocial tendencies could have different attachment and general personality correlates.


Asunto(s)
Trastorno de Personalidad Antisocial/diagnóstico , Trastorno de Personalidad Antisocial/psicología , Apego a Objetos , Prisioneros/psicología , Adulto , Factores de Edad , Agresión/psicología , Crimen/psicología , Humanos , Relaciones Interpersonales , Masculino , Noruega , Proyectos Piloto , Psicometría/estadística & datos numéricos , Reproducibilidad de los Resultados , Encuestas y Cuestionarios , Violencia/psicología , Adulto Joven
13.
Front Psychol ; 12: 702347, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34539504

RESUMEN

The Big Five theory suggests that five components in teamwork are essential for team effectiveness in stressful environments. Furthermore, three coordinating mechanisms are claimed to be decisive to upholding and informing vital teamwork processes. Although much research has been conducted into the Big Five theory and its components, to the best of our knowledge, no study has yet been made of the relative importance of the three mechanisms and their impact on team effectiveness. Also, only a few studies have tried to investigate whether the components and the coordinating mechanisms are trainable. This study aims to make a theoretical contribution to the part of the theory focusing on the coordinating mechanisms. Secondly, it investigates whether training can improve team performance. Working in teams of two, 166 police officers participated in a simulated operational scenario. Correlational analyses indicated that all Big Five teamwork behaviors and coordinating mechanisms relate to external ratings of team performance. Only the mechanisms of Closed Loop Communication (CLC) and Shared Mental Model (SMM) predicted performance indicators, with SMM predicting above and beyond the effect of CLC. No effect of the training program was found. The study provides new evidence in a police situation that the most important coordinating mechanism of the Big Five theory is that of shared mental models, which in turn has consequences for the type of training needed.

14.
Nutrients ; 13(6)2021 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-34070968

RESUMEN

Future deep space astronauts must maintain adequate nutrition despite highly stressful, isolated, confined and dangerous environments. The present case-study investigated appetite regulating hormones, nutrition status, and physical and emotional stress in a space analog condition: an explorer conducting a 93-day unsupported solo crossing of Antarctica. Using the dried blood spot (DBS) method, the subject drew samples of his blood on a regular basis during the expedition. The DBSs were later analyzed for the appetite regulating hormones leptin and adiponectin. Energy intake and nutritional status were monitored by analysis of albumin and globulin (including their ratio). Interleukin-6 (IL-6) was also analyzed and used as an energy sensor. The results showed a marked reduction in levels of the appetite-reducing hormone, leptin, and the appetite stimulating hormone, adiponectin, during both extreme physical and psychological strain. Nutrition status showed a variation over the expedition, with below-normal levels during extreme psychological strain and levels abutting the lower bounds of the normal range during a phase dominated by extreme physical hardship. The IL-6 levels varied substantially, with levels above the normal range except during the recovery phase. It was concluded that a daily intake of 5058 to 5931 calories seemed to allow recovery of both appetite and nutritional status between extreme physical and psychological hardship during a long Arctic expedition. Furthermore, IL-6 may be a sensor in the muscle-liver, muscle-fat and muscle-brain crosstalk. These results may help guide nutrition planning for future astronaut crews, mountaineers and others involved in highly demanding missions.


Asunto(s)
Adiponectina/sangre , Regulación del Apetito , Expediciones , Leptina/sangre , Estado Nutricional , Adulto , Regiones Antárticas , Apetito , Frío , Ingestión de Energía , Ejercicio Físico , Humanos , Interleucina-6/sangre , Masculino , Distrés Psicológico , Albúmina Sérica/análisis , Seroglobulinas/análisis
15.
J Gambl Stud ; 26(4): 545-59, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-20155305

RESUMEN

This study investigated the relationship between aversive conditioning, heart rate variability suppression, behavioral activation system/behavioral inhibition system and risk-avoidance on the Iowa gambling task (IGT) in a nonclinical sample (29 male, 29 female, mean age = 20.7). A laboratory based Pavlovian aversive conditioning paradigm was used where a 1500 Hz tone (CS+) was followed by a burst of loud white noise (US), and a 850 Hz (CS-) tone was never followed by the US. In a subsequent extinction phase where the CS+ and CS- were presented without the US, conditioned skin conductance responses to the CS+ indicated aversive conditioning. The results showed that the participants who did not show aversive conditioning (N = 26) exhibited significantly less risk-avoidance compared to participants who did show aversive conditioning (N = 32). Regression analysis showed that among the study variables, only aversive conditioning contributed significantly to explaining variance in risk-avoidance. These results may have implications for understanding risk-taking in gambling in general, and may be a starting point understanding the role of aversive conditioning in the development and maintenance of gambling problems.


Asunto(s)
Estimulación Acústica/métodos , Reacción de Prevención/fisiología , Condicionamiento Clásico/fisiología , Extinción Psicológica/fisiología , Juego de Azar/psicología , Conducta de Reducción del Riesgo , Adulto , Femenino , Humanos , Masculino , Ruido , Adulto Joven
16.
Scand J Psychol ; 51(3): 237-45, 2010 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-20028488

RESUMEN

In the 30 years that have elapsed since it was first introduced, the concept of hardiness has continued to attract the attention and interest of researchers from all over the world. The purpose of this study was to examine the reliability and factor structure of a revised Norwegian hardiness scale (Dispositional Resilience Scale 15; DRS-15). Using exploratory and confirmatory factor analytic strategies with a large sample of working adults (N = 7,280), support was found for a hierarchical structure comprising a general hardiness dimension and three sub-dimensions (commitment, control, and challenge). Overall, the results support the reliability and validity of the revised DRS-15 and underscore the importance of examining the psychometric properties and cultural appropriateness of translated scales.


Asunto(s)
Personalidad , Resiliencia Psicológica , Encuestas y Cuestionarios , Adulto , Análisis Factorial , Femenino , Humanos , Masculino , Persona de Mediana Edad , Noruega , Análisis de Componente Principal , Psicometría , Reproducibilidad de los Resultados
17.
Front Psychol ; 11: 1300, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32595570

RESUMEN

Because of its brevity, the 12-item General Health Questionnaire (GHQ-12) has become one of the most popular and used measure for detecting psychological distress. Originally intended as a unidimensional measure, the majority of subsequent factor-analytic studies have failed to support GHQ-12 as a unitary construct and have instead proposed a plethora of multidimensional structures. In this study, we further examined the factor structure in two different military samples, one consisting of crewmembers from four different frigates deployed in anti-piracy operations and Standing NATO Maritime Group deployments (N = 591) and one consisting of crewmember from three different minehunters/sweepers serving in Standing NATO Mine Counter-Measures Group deployments (N = 196). Results from confirmatory factor analyses (CFA) performed in the first sample supported a bifactor model, consisting of a general factor representing communality among all items and two specific factors reflecting common variance due to wording effects (negatively and positively phrased items). A multi-group CFA further confirmed this structure to be invariant across our second sample. Structural equation modeling also showed that the general factor was strongly associated with symptoms of insomnia and mental health, whereas the specific factors were either non-significantly or considerably weaker associated with the criterion variables. Overall, our results are congruent with the notion that the multidimensionality demonstrated in many previous investigations is most likely an expression of method-specific variance caused by item wording. The explained unique variance associated with these specific factors was further relatively small. Ignoring the multidimensionality and treating GHQ-12 as a unitary construct will therefore most likely introduce minimal bias to most practical applications.

18.
Mil Med ; 185(5-6): e703-e710, 2020 06 08.
Artículo en Inglés | MEDLINE | ID: mdl-31838503

RESUMEN

INTRODUCTION: Minor mental health problems among service members deployed in combat areas are relatively common, but social support is a protective factor. With the advent of digital communication, as well as more frequent family separations, a stable family support system may be more important than before. In this exploratory study, we aimed to test the relationship between perceived family support and the development of minor psychiatric symptoms during a 4-month naval counter piracy mission in the Gulf of Aden. MATERIALS AND METHODS: We measured minor mental health problems with the general health questionnaire 12 (GHQ-12) and family support at three intervals, 3 weeks before deployment, 2 months into the mission, and at the end of deployment. We used mixed multilevel regression analysis to analyze the main effects of family support and time, as well as their interaction. All analyses were controlled for military rank. RESULTS: We found that minor psychiatric symptoms increased at both midway (B = 0.51, P < 0.05) and toward the end of the mission (B = 0.72, P < 0.01). The results also showed that receiving more family support is associated with fewer psychiatric symptoms (B = -0.87, P < 0.01). Family support also moderated the development of symptoms toward the end of the mission (B = -0.73, P < 0.01). The buffering effect was such that service members with a high degree of family support experienced no increase in minor psychiatric symptoms during the deployment. CONCLUSIONS: The results indicate that naval deployment is associated with a small increase in minor mental health problems and that having a high degree of family support buffers this effect. Efforts to increase support among military families may positively influence the wellbeing of naval sailors during combat missions.


Asunto(s)
Salud Mental , Humanos , Trastornos Mentales/epidemiología , Familia Militar , Personal Militar , Apoyo Social
19.
Ann Behav Med ; 37(2): 141-53, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19424767

RESUMEN

BACKGROUND: In the present paper, we describe a model of neurovisceral integration in which a set of neural structures involved in cognitive, affective, and autonomic regulation are related to heart rate variability (HRV) and cognitive performance. METHODS: We detail the pathways involved in the neural regulation of the cardiovascular system and provide pharmacological and neuroimaging data in support of the neural structures linking the central nervous system to HRV in humans. We review a number of studies from our group showing that individual differences in HRV are related to performance on tasks associated with executive function and prefrontal cortical activity. These studies include comparisons of executive- and nonexecutive-function tasks in healthy participants, in both threatening and nonthreatening conditions. In addition, we show that manipulating resting HRV levels is associated with changes in performance on executive-function tasks. We also examine the relationship between HRV and cognitive performance in ecologically valid situations using a police shooting simulation and a naval navigation simulation. Finally, we review our studies in anxiety patients, as well as studies examining psychopathy. CONCLUSION: These findings in total suggest an important relationship among cognitive performance, HRV, and prefrontal neural function that has important implications for both physical and mental health. Future studies are needed to determine exactly which executive functions are associated with individual differences in HRV in a wider range of situations and populations.


Asunto(s)
Sistema Nervioso Autónomo/fisiología , Cognición/fisiología , Frecuencia Cardíaca/fisiología , Corteza Prefrontal/fisiología , Adaptación Fisiológica , Adaptación Psicológica , Ansiedad/fisiopatología , Ansiedad/psicología , Medicina de la Conducta , Fenómenos Fisiológicos Cardiovasculares , Conductas Relacionadas con la Salud , Estado de Salud , Humanos , Modelos Psicológicos , Solución de Problemas
20.
Nord J Psychiatry ; 63(5): 426-32, 2009.
Artículo en Inglés | MEDLINE | ID: mdl-19688636

RESUMEN

BACKGROUND: Despite the widespread use of the Impact of Event Scale to measure post-traumatic stress symptoms, psychometric evaluations of the scale have revealed mixed findings. AIM: The aim of the present study is to provide new empirical evidence and examine the factor structure, reliability, and predictive validity of the Norwegian version of the IES-R. METHODS: Posttraumatic stress symptoms were recorded in a student sample (n=312) 3 weeks after the Southeast Asian tsunami disaster in December 2004. Confirmatory factor analyses of the IES-R behavior items using structural equation modeling (SEM) were performed on four models from existing research. RESULTS: The original three-factor model of intrusion, avoidance and hyperarousal symptoms exhibited the best goodness-of-fit indices when defined as oblique. The IES-R also revealed satisfactory reliability. Symptom levels of intrusion and avoidance were moderate, while hyperarousal scores were low, with a significant gender difference. CONCLUSION: Taken together, the IES-R revealed good psychometric properties in this nonclinical student sample and could be a useful instrument to assess and follow-up on PTSD symptoms after a certain identified trauma.


Asunto(s)
Escalas de Valoración Psiquiátrica , Trastornos por Estrés Postraumático/diagnóstico , Trastornos por Estrés Postraumático/psicología , Asia Sudoriental , Análisis Factorial , Femenino , Humanos , Masculino , Noruega , Psicometría/instrumentación , Reproducibilidad de los Resultados , Encuestas y Cuestionarios , Tsunamis , Adulto Joven
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