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Learning about stress from building, drilling and flying: a scoping review on team performance and stress in non-medical fields.
Dijkstra, FS, Renden, PG, Meeter, M, Schoonmade, LJ, Krage, R, van Schuppen, H, de la Croix, A
Scandinavian journal of trauma, resuscitation and emergency medicine. 2021;(1):52
Abstract
BACKGROUND Teamwork is essential in healthcare, but team performance tends to deteriorate in stressful situations. Further development of training and education for healthcare teams requires a more complete understanding of team performance in stressful situations. We wanted to learn from others, by looking beyond the field of medicine, aiming to learn about a) sources of stress, b) effects of stress on team performance and c) concepts on dealing with stress. METHODS A scoping literature review was undertaken. The three largest interdisciplinary databases outside of healthcare, Scopus, Web of Science and PsycINFO, were searched for articles published in English between 2008 and 2020. Eligible articles focused on team performance in stressful situations with outcome measures at a team level. Studies were selected, and data were extracted and analysed by at least two researchers. RESULTS In total, 15 articles were included in the review (4 non-comparative, 6 multi- or mixed methods, 5 experimental studies). Three sources of stress were identified: performance pressure, role pressure and time pressure. Potential effects of stress on the team were: a narrow focus on task execution, unclear responsibilities within the team and diminished understanding of the situation. Communication, shared knowledge and situational awareness were identified as potentially helpful team processes. Cross training was suggested as a promising intervention to develop a shared mental model within a team. CONCLUSION Stress can have a significant impact on team performance. Developing strategies to prevent and manage stress and its impact has the potential to significantly increase performance of teams in stressful situations. Further research into the development and use of team cognition in stress in healthcare teams is needed, in order to be able to integrate this 'team brain' in training and education with the specific goal of preparing professionals for team performance in stressful situations.
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2.
Assessing the awareness of Czechs, age 40+, on the link between lifestyle choices and risk factors for cardiovascular diseases.
Tóthová, V, Bártlová, S, Chloubová, I, Michálková, H, Olišarová, V, Prokešová, R, Šedová, L, Treslova, M, Adámkova, V
Neuro endocrinology letters. 2018;(5):401-408
Abstract
OBJECTIVES Cardiovascular diseases constitute the main cause of disability and premature death worldwide. Those diseases will continue to endanger health unless the public understands clearly and completely which risk factors contribute to the development of these diseases and what they can do to avoid these risks. This article assesses the understanding of risk factors that can lead to the development of heart and vessel diseases. METHODS A non-standardized questionnaire was used for data collection. The respondents expressed their opinions on influenceable factors using a five-degree Likert scale. The research set included 1,992 respondents. Data were statistically analyzed using the SASD program, version 1.4.12. To calculate the level of dependence of the selected characteristics, the Wallis, and Spearman correlation coefficients were calculated. The goodness-of-fit χ2 was applied as well. RESULTS The results show that 66.8% of respondents go walking for at least 30 minutes on 5 or more days per week. Respondents from lower age groups reported significantly more (p < 0.001) walking. The comparison of mean values showed that Czech citizens aged 40 or more years express the highest agreement with the statement that they could prevent heart and vessel diseases by modifying their eating habits. The results further showed that 25.8% of Czech citizens smoked and that men smoked significantly more (29.6%) than women (22.5%). More than one-half (60.1%) reported drinking alcohol occasionally; the remaining respondents reported drinking alcohol 3-4 times a month or more often. Men reported drinking beer significantly more often (p < 0.001) than women, while women reported drinking wine significantly more often (p < 0.001) than men. CONCLUSIONS Respondents aged 40 or more years were aware of some, but not all, of the risk factors that can influence the development of cardiovascular diseases. They accepted that they could prevent heart and vessel diseases by modifying their eating habits, however, their opinions regarding exercise differed from professional recommendations. Two-thirds of the respondents stated that smoking could also influence heart and vessel diseases. The study suggests that primary care providers need to put more effort into educating their patients regarding steps that can be to influence their own health.
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3.
Early retinotopic responses to violations of emotion-location associations may depend on conscious awareness.
Herde, L, Rossi, V, Pourtois, G, Rauss, K
Cognitive neuroscience. 2018;(1-2):38-55
Abstract
Reports of modulations of early visual processing suggest that retinotopic visual cortex may actively predict upcoming stimuli. We tested this idea by showing healthy human participants images of human faces at fixation, with different emotional expressions predicting stimuli in either the upper or the lower visual field. On infrequent test trials, emotional faces were followed by combined stimulation of upper and lower visual fields, thus violating previously established associations. Results showed no effects of such violations at the level of the retinotopic C1 of the visual evoked potential over the full sample. However, when separating participants who became aware of these associations from those who did not, we observed significant group differences during extrastriate processing of emotional faces, with inverse solution results indicating stronger activity in unaware subjects throughout the ventral visual stream. Moreover, within-group comparisons showed that the same peripheral stimuli elicited differential activity patterns during the C1 interval, depending on which stimulus elements were predictable. This effect was selectively observed in manipulation-aware subjects. Our results provide preliminary evidence for the notion that early visual processing stages implement predictions of upcoming events. They also point to conscious awareness as a moderator of predictive coding.
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4.
The role of the retino-colliculo-extrastriate pathway in visual awareness and visual field recovery.
Bertini, C, Grasso, PA, Làdavas, E
Neuropsychologia. 2016;:72-9
Abstract
Patients with visual field defects resulting from post-chiasmatic lesions experience loss of visual function in up to one half of their visual field, with consequent impairments in their daily life activities. Therefore, effective strategies for compensating for the visual field loss are of great clinical relevance. After lesions to the primary visual pathway -which conveys visual information from the retina to the lateral geniculate nucleus, the optic radiations and, then, to the striate cortex-an alternative visual pathway, which projects from the superior colliculus to the extrastriate cortex, is usually spared in patients with visual field defects. In the present review, evidence for spared functioning of this alternative pathway in patients with visual field defects will be presented, both in terms of residual visual abilities, without awareness, for stimuli presented in the blind field, and the ability to integrate unseen visual signals presented in the blind field with concurrent auditory stimuli. Crucially, this review will discuss how the spared retino-colliculo-extrastriate pathway might be a useful tool for compensating for the loss of visual perception. Accordingly, evidence for the compensatory effects of systematic multisensory audio-visual stimulation in patients with visual field defects will be reviewed.
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5.
The effect of heightened awareness of observation on consumption of a multi-item laboratory test meal in females.
Robinson, E, Proctor, M, Oldham, M, Masic, U
Physiology & behavior. 2016;:129-135
Abstract
Human eating behaviour is often studied in the laboratory, but whether the extent to which a participant believes that their food intake is being measured influences consumption of different meal items is unclear. Our main objective was to examine whether heightened awareness of observation of food intake affects consumption of different food items during a lunchtime meal. One hundred and fourteen female participants were randomly assigned to an experimental condition designed to heighten participant awareness of observation or a condition in which awareness of observation was lower, before consuming an ad libitum multi-item lunchtime meal in a single session study. Under conditions of heightened awareness, participants tended to eat less of an energy dense snack food (cookies) in comparison to the less aware condition. Consumption of other meal items and total energy intake were similar in the heightened awareness vs. less aware condition. Exploratory secondary analyses suggested that the effect heightened awareness had on reduced cookie consumption was dependent on weight status, as well as trait measures of dietary restraint and disinhibition, whereby only participants with overweight/obesity, high disinhibition or low restraint reduced their cookie consumption. Heightened awareness of observation may cause females to reduce their consumption of an energy dense snack food during a test meal in the laboratory and this effect may be moderated by participant individual differences.
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6.
Effects of a mindfulness-based intervention on psychological distress, well-being, and maternal self-efficacy in breast-feeding mothers: results of a pilot study.
Perez-Blasco, J, Viguer, P, Rodrigo, MF
Archives of women's mental health. 2013;(3):227-36
Abstract
Several pilot studies have provided evidence that mindfulness-based intervention is beneficial during pregnancy, yet its effects in mothers during the early parenting period are unknown. The purpose of the present pilot study was to examine the effectiveness of a mindfulness-based intervention in breast-feeding mothers. We developed and tested an 8-week mindfulness-based intervention aimed at improving maternal self-efficacy, mindfulness, self-compassion, satisfaction with life, and subjective happiness, and at reducing psychological distress. A randomized controlled, between-groups design was used with treatment and control groups (n = 26) and pretest and posttest measures. ANCOVA results indicated that, compared to the control group, mothers in the treatment group scored significantly higher on maternal self-efficacy, some dimensions of mindfulness (observing, acting with awareness, non-judging, and non-reactivity), and self-compassion (self-kindness, mindfulness, over-identification, and total self-compassion). In addition, mothers who received the treatment exhibited significantly less anxiety, stress, and psychological distress. The results supported previous research findings about the benefits of mindfulness-based intervention in women from the perinatal and postpartum periods through the early parenting period. Additional research is needed to validate our findings in non-breast-feeding mothers and to examine the intervention's indirect benefits in terms of family relationships and child development.
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7.
Cognitive awareness of carbohydrate intake does not alter exercise-induced lymphocyte apoptosis.
Navalta, JW, McFarlin, BK, Lyons, S, Arnett, SW, Schafer, MA
Clinics (Sao Paulo, Brazil). 2011;(2):197-202
Abstract
OBJECTIVE The purpose of this investigation was to determine whether cognitive awareness of carbohydrate beverage consumption affects exercise-induced lymphocyte apoptosis, independent of actual carbohydrate intake. INTRODUCTION Carbohydrate supplementation during aerobic exercise generally protects against the immunosuppressive effects of exercise. It is not currently known whether carbohydrate consumption or simply the knowledge of carbohydrate consumption also has that effect. METHODS Endurance trained male and female (N = 10) athletes were randomly assigned to one of two groups based on either a correct or incorrect cognitive awareness of carbohydrate intake. In the incorrect group, the subjects were informed that they were receiving the carbohydrate beverage but actually received the placebo beverage. Participants completed a 60-min ride on a cycle ergometer at 80% VO₂peak under carbohydrate and placebo supplemented conditions. Venous blood samples were collected at rest and immediately after exercise and were used to determine the plasma glucose concentration, lymphocyte count, and extent of lymphocyte apoptosis. Cognitive awareness, either correct or incorrect, did not have an effect on any of the measured variables. RESULTS Carbohydrate supplementation during exercise did not have an effect on lymphocyte count or apoptotic index. Independent of drink type, exercise resulted in significant lymphocytosis and lymphocyte apoptosis (apoptotic index at rest = 6.3 ± 3% and apoptotic index following exercise = 11.6 ± 3%, P < 0.01). CONCLUSION Neither carbohydrate nor placebo supplementation altered the typical lymphocyte apoptotic response following exercise. While carbohydrate supplementation generally has an immune-boosting effect during exercise, it appears that this influence does not extend to the mechanisms that govern exercise-induced lymphocyte cell death.
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8.
Effect of a subanesthetic dose of ketamine on memory and conscious awareness in healthy volunteers.
Hetem, LA, Danion, JM, Diemunsch, P, Brandt, C
Psychopharmacology. 2000;(3):283-8
Abstract
RATIONALE Ketamine is an NMDA receptor antagonist with psychotogenic and cognitive effects in healthy volunteers and schizophrenic patients which has been proposed to be a useful tool to investigate neurobiological basis of schizophrenia. OBJECTIVE The present study characterized the effects of a subanesthetic dose of ketamine on memory and related subjective states of awareness in healthy volunteers. METHODS Twenty-six subjects were given either a 60-min ketamine (0.5 mg/kg per hour) or a placebo infusion. To obtain constant plasma ketamine throughout the experiment, ketamine was administered using a computer-controlled infusion system. Subjects carried out episodic memory tasks involving words presented before and during infusion. Memory performance was assessed with recognition and free recall tasks. Subjective states of awareness were assessed using an experiential approach. Levels of psychopathology were evaluated with BPRS. RESULTS Ketamine impaired performance in free recall and recognition of words presented during, but not before, infusion. There were no differences between groups concerning states of awareness associated with recognition memory. Subjects under ketamine had higher BPRS total scores as well as BPRS negative and positive cluster scores than control subjects. CONCLUSIONS Ketamine decreases episodic memory performance by impairing encoding, but not retrieval processes. It does not selectively impair subjective states of awareness associated with recognition memory as it has been seen in patients with schizophrenia. Ketamine might mimic the memory impairment associated with acute, but not chronic, forms of schizophrenia.