Sleep-Directed Hypnosis Improves Subjective Sleep Quality but not Extinction Memory After Exposure to Analog Trauma

Background Evidence-based treatments of posttraumatic stress disorder (PTSD) aim to promote fear extinction learning. Post-learning sleep, particularly slow wave sleep (SWS), promotes memory consolidation and recall. Thus, boosting SWS might strengthen extinction recall. The current study investigated whether sleep-directed hypnosis designed to increase SWS and sleep quality improves extinction recall and reduces analog PTSD symptoms. Method In two subsamples (remote/laboratory), 211 healthy individuals underwent fear conditioning with a traumatic film clip. On the next evening, they underwent extinction training. Thereafter, the experimental group received sleep-directed hypnosis, whereas the control group listened to a control text. Extinction recall and generalization and film-related intrusions and rumination were assessed on the following morning. Results Subjective sleep quality declined following exposure to an aversive film. No group differences were found in SWS though exploratory analyses indicated less rapid eye movement sleep after hypnosis. After hypnosis, the experimental group reported improved sleep quality, whereas the control group showed a further deterioration. Hypnosis had no effects on extinction retention and generalization nor on analog intrusions and rumination. Conclusion The current results indicate that sleep-directed hypnosis may be beneficial for improving subjective sleep quality after trauma but not for enhancing extinction memory and reducing analog PTSD symptoms

Investigation of early night sleep effects on subsequent fear extinction learning and recall

Extinction learning is considered an important underlying process of successful treatment of posttraumatic stress disorder (PTSD). However, sleep disturbances may impede this learning process: Current accounts postulate that sleep facilitates encoding by promoting neural plasticity during slow wave sleep (SWS). Based on this hypothesis, we tested whether early night sleep, with high amounts of SWS, facilitates subsequent extinction learning and recall. Sixty-three participants took part in a trauma-adapted fear conditioning experiment. One group received a three-hour sleep opportunity in the early night half, whereas the other group stayed awake. Thereafter, both groups underwent extinction training and a return-of-fear test. Retention was assessed after another sleep opportunity in both groups. Linear mixed-effects models and Bayesian inference did not support the hypothesis of strengthened fear extinction by prior early night sleep. Subsequent exploratory analyses, in contrast, point to a role of rapid eye movement sleep in promoting successful fear extinction learning. Further confirmatory research should re-investigate these effects and their implications for the treatment of PTSD

To sleep or not to sleep, that is the question: A systematic review and meta-analysis on the effect of post-trauma sleep on intrusive memories of analog trauma

Distressing intrusive memories of a traumatic event are one of the hallmark symptoms of posttraumatic stress disorder. Thus, it is crucial to identify early interventions that prevent the occurrence of intrusive memories. Both, sleep and sleep deprivation have been discussed as such interventions, yet previous studies yielded contradicting effects. Our systematic review aims at evaluating existing evidence by means of traditional and individual participant data (IPD) meta-analyses to overcome power issues of sleep research. Until May 16th, 2022, six databases were searched for experimental analog studies examining the effect of post-trauma sleep versus wakefulness on intrusive memories. Nine studies were included in our traditional meta-analysis (8 in the IPD meta-analysis). Our analysis provided evidence for a small effect favoring sleep over wakefulness, log-ROM = 0.25, p < .001, suggesting that sleep is associated with a lower number of intrusions but unrelated to the occurrence of any versus no intrusions. We found no evidence for an effect of sleep on intrusion distress. Heterogeneity was low and certainty of evidence for our primary analysis was moderate. Our findings suggest that post-trauma sleep has the potential to be protective by reducing intrusion frequency. More research is needed to determine the impact following real-world trauma and the potential clinical significance

New Robes for an Old Order: Multicultural Education, Peace Education, Cooperative Learning and Progressive Education

This paper examines three recent educational movements from a philosophical and historical perspective in order to identify and analyze the related philosophical underpinnings. Those approaches examined include multicultural education, peace education and cooperative learning. The origins and basic features of each educational movement are described briefly. Analysis is primarily concerned with goals and objectives and an examination of points common to the three approaches. The theoretical concern is that the underlying philosophical bases of these movements is not readily discernible due to the lack of the proponents of each approach to make these c lea r. The authors contend that the fundamental premise of these movements is remarkably like that of the Progressivist educational focus of this century. Two implications flow from this, namely that all "new" ideas need to be carefully examined for their relation to ongoing (or past) practice, and educators need to be more concerned about explicating premises when postulating new approaches

COVID-19 相关精神痛苦与类似应激源暴露后的类似 PTSD 症状相关

Background: The COVID-19 outbreak in early 2020 was associated with an immediate increase in mental health problems in a significant percentage of the general population. Therefore, it is crucial to investigate how the COVID-19 pandemic – as a psychosocial stressor – affected the aetiological processes of mental disorders. Previous research has shown that stress potentiates associative (fear) learning and analogue symptoms of posttraumatic stress disorder (PTSD) and that analogue PTSD symptoms can emerge in response to associative learning. Objective: We investigated whether distress in response to the COVID-19 outbreak support the development of intrusions and rumination after exposure to a non-COVID-19-related analogue trauma. Moreover, we examined if these effects are mediated by the strength of associative learning during analogue trauma. Method: 122 undergraduate university students participated in an online experiment between March and July 2020. They completed questionnaires measuring distress and rumination related to the COVID-19 outbreak. On a subsequent day, they went through an associative learning task, in which neutral stimuli were paired with the appearance of a highly aversive film clip. Subjective ratings were assessed as indicators of associative learning. On the next day, participants documented film-related intrusions and rumination. Results: COVID-19-related distress but not rumination was associated with post-film intrusion and rumination load. These effects were mediated by associative learning. Conclusions: The current findings are in line with the assumptions that stress enhanced both associative learning and PTSD symptoms. Specifically, they indicate that prolonged psychosocial stress – like during the COVID-19 outbreak – is linked to individual differences in memory processing of aversive events. Further confirmatory research is needed to replicate these results.Antecedentes: El brote de COVID-19 a principios de 2020 se asoció con un aumento inmediato de problemas de salud mental en un porcentaje significativo de la población general. Por lo tanto, es crucial investigar cómo la pandemia de COVID-19, como estresor psicosocial, afectó los procesos etiológicos de los trastornos mentales. Investigaciones anteriores han demostrado que el estrés potencia el aprendizaje asociativo (miedo) y los síntomas análogos del trastorno de estrés postraumático (TEPT) y que los síntomas análogos del TEPT pueden surgir en respuesta al aprendizaje asociativo. Objetivo: Investigamos si el malestar psicológico en respuesta al brote de COVID-19 contribuye al desarrollo de intrusiones y rumiación después de la exposición a un trauma análogo no relacionado con COVID-19. Además, examinamos si estos efectos están mediados por la fuerza del aprendizaje asociativo durante el trauma analógico. Método: 122 estudiantes universitarios de pregrado participaron en un experimento en línea entre marzo y julio de 2020. Completaron cuestionarios que midieron el malestar psicológico y la rumiación relacionados con el brote de COVID-19. Al día siguiente, realizaron una tarea de aprendizaje asociativo, en la que se emparejaron estímulos neutrales con la exposición a un clip de película altamente aversivo. Las calificaciones subjetivas se evaluaron como indicadores de aprendizaje asociativo. Al día siguiente, los participantes documentaron intrusiones y rumiaciones relacionadas con la película. Resultados: El malestar psicológico relacionado con COVID-19, pero no la rumiación, se asoció con la intrusión posterior a la película y la carga de rumiación. Estos efectos fueron mediados por el aprendizaje asociativo. Conclusiones: Los hallazgos actuales están en línea con las suposiciones de que el estrés potenció tanto el aprendizaje asociativo como los síntomas del TEPT. Específicamente, indican que el estrés psicosocial prolongado, como el ocurrido durante el brote de COVID-19, está relacionado con diferencias individuales en el procesamiento de la memoria de eventos aversivos. Se necesita más investigación confirmatoria para replicar estos resultados.背景：2020 年初的 COVID-19 爆发与很大一部分一般人群中心理健康问题的立即增加有关。因此，考查 COVID-19 疫情——作为一种社会心理应激源——如何影响精神障碍的病因过程至关重要。先前研究表明，应激会增强联想（恐惧）学习和类似创伤后应激障碍 (PTSD)症状，并且类似 PTSD 症状可能会对联想学习做出反应。 目的：我们考查了对 COVID-19 爆发的精神痛苦是否支持非 COVID-19 相关类似创伤暴露后闯入和反刍的发展。此外，我们考查了这些影响是否由类似创伤期间的联想学习强度中介。 方法：122 名本科生在 2020 年 3 月至 7 月期间参加了一项在线实验。他们完成了COVID-19 爆发相关精神痛苦和反刍的测量问卷。随后一天，他们完成了一项联想学习任务，其中中性刺激与高度令人厌恶的电影剪辑的出现配对。主观评分被评估为联想学习的指标。第二天，参与者记录了与电影相关的入侵和反刍。 结果： COVID-19 相关精神痛苦但并非反刍与电影后闯入和反刍载荷相关。这些影响由联想学习中介。 结论：当前研究结果与应激增强联想学习和 PTSD 症状的假设一致。具体来说，他们表明，长期的社会心理应激（像在 COVID-19 爆发期间）与不良事件记忆加工的个体差异有关。需要进一步的验证性研究来重复这些结果

COVID-19-related distress is associated with analogue PTSD symptoms after exposure to an analogue stressor

Background: The COVID-19 outbreak in early 2020 was associated with an immediate increase in mental health problems in a significant percentage of the general population. Therefore, it is crucial to investigate how the COVID-19 pandemic – as a psychosocial stressor – affected the aetiological processes of mental disorders. Previous research has shown that stress potentiates associative (fear) learning and analogue symptoms of posttraumatic stress disorder (PTSD) and that analogue PTSD symptoms can emerge in response to associative learning. Objective: We investigated whether distress in response to the COVID-19 outbreak support the development of intrusions and rumination after exposure to a non-COVID-19-related analogue trauma. Moreover, we examined if these effects are mediated by the strength of associative learning during analogue trauma. Method: 122 undergraduate university students participated in an online experiment between March and July 2020. They completed questionnaires measuring distress and rumination related to the COVID-19 outbreak. On a subsequent day, they went through an associative learning task, in which neutral stimuli were paired with the appearance of a highly aversive film clip. Subjective ratings were assessed as indicators of associative learning. On the next day, participants documented film-related intrusions and rumination. Results: COVID-19-related distress but not rumination was associated with post-film intrusion and rumination load. These effects were mediated by associative learning. Conclusions: The current findings are in line with the assumptions that stress enhanced both associative learning and PTSD symptoms. Specifically, they indicate that prolonged psychosocial stress – like during the COVID-19 outbreak – is linked to individual differences in memory processing of aversive events. Further confirmatory research is needed to replicate these results

Containing cefoxitin costs through a program to curtail use in surgical prophylaxis

Objective: To reduce drug costs attributable to anti-anaerobic cephalosporins – specifically to reduce cefoxitin use in surgical prophylaxis

To sleep or not to sleep, that is the question : A systematic review and meta-analysis on the effect of post-trauma sleep on intrusive memories of analog trauma

Distressing intrusive memories of a traumatic event are one of the hallmark symptoms of posttraumatic stress disorder. Thus, it is crucial to identify early interventions that prevent the occurrence of intrusive memories. Both, sleep and sleep deprivation have been discussed as such interventions, yet previous studies yielded contradicting effects. Our systematic review aims at evaluating existing evidence by means of traditional and individual participant data (IPD) meta-analyses to overcome power issues of sleep research. Until May 16th, 2022, six databases were searched for experimental analog studies examining the effect of post-trauma sleep versus wakefulness on intrusive memories. Nine studies were included in our traditional meta-analysis (8 in the IPD meta-analysis). Our analysis provided evidence for a small effect favoring sleep over wakefulness, log-ROM = 0.25, p &lt; .001, suggesting that sleep is associated with a lower number of intrusions but unrelated to the occurrence of any versus no intrusions. We found no evidence for an effect of sleep on intrusion distress. Heterogeneity was low and certainty of evidence for our primary analysis was moderate. Our findings suggest that post-trauma sleep has the potential to be protective by reducing intrusion frequency. More research is needed to determine the impact following real-world trauma and the potential clinical significance