Effects of violent and non-violent computer game content on memory performance in adolescents     

Asja Maass  Kirsten Kollhörster  Annemarie Riediger  Vanessa MacDonald  Arnold Lohaus 《European Journal of Psychology of Education - EJPE》2011,26(3):339-353

The present study focuses on the short-term effects of electronic entertainment media on memory and learning processes. It compares the effects of violent versus non-violent computer game content in a condition of playing and in another condition of watching the same game. The participants consisted of 83 female and 94 male adolescents with a mean age of 17.6 years. The dependent variables are memory for previously learnt verbal and visual material, memory for media-related content and physiological measures of stress (heart rate, cortisol, salivary alpha-amylase). Besides the group comparisons, potential mediation effects and gender differences were examined. The results show that violent content leads to a poorer memory performance for verbal material and to an increased heart rate. The heart rate, however, does not mediate the effect on memory performance. Genders differ regarding their abilities to memorise verbal and visual material, with females showing a better performance (independent of the experimental condition), and for memorising media-contents, where the males outperform females (also independent of experimental condition). The study supports the assumption that violent and arousing media content has a negative short-term effect on simultaneous information processing and learning and that there are gender-specific media effects.  相似文献   

An ERP study of emotional face processing in the adult and infant brain     

Leppänen JM  Moulson MC  Vogel-Farley VK  Nelson CA 《Child development》2007,78(1):232-245

To examine the ontogeny of emotional face processing, event-related potentials (ERPs) were recorded from adults and 7-month-old infants while viewing pictures of fearful, happy, and neutral faces. Face-sensitive ERPs at occipital-temporal scalp regions differentiated between fearful and neutral/happy faces in both adults (N170 was larger for fear) and infants (P400 was larger for fear). Behavioral measures showed no overt attentional bias toward fearful faces in adults, but in infants, the duration of the first fixation was longer for fearful than happy faces. Together, these results suggest that the neural systems underlying the differential processing of fearful and happy/neutral faces are functional early in life, and that affective factors may play an important role in modulating infants' face processing.  相似文献   

Cytokine responses to resistance training in people with multiple sclerosis     

White LJ  Castellano V  Mc Coy SC 《Journal of sports sciences》2006,24(8):911-914

Exercise for individuals with multiple sclerosis (MS) has been shown to improve cardiovascular function, increase strength and endurance, and reduce fatigue. The impact of exercise on immune function in the disease, however, remains mostly unexplored. Ten female MS patients participated in an 8 week programme of twice-weekly progressive resistance training, with pre- and post-training assessment of serum concentrations of cytokines IL-2, IL-4, IL-6, IL-10, CRP, TNF-alpha and IFN-gamma. After training, IL-4, IL-10, CRP and IFN-gamma showed statistically reduced resting concentrations in blood, while TNF-alpha showed non-significant reductions and IL-2 and IL-6 remained unchanged. These results suggest that progressive resistance training may have an impact on cytokine concentrations in individuals with MS and should be confirmed in studies with stronger statistical power. The impact of these changes on overall immune function in MS and on disease status and prognosis remains to be determined.  相似文献   

Signals of child abuse     

Vanessa Vigare 《Early Childhood Education Journal》1978,5(3):24-24

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Student Teachers’ Approaches to Teaching Biological Evolution     

Lisa A. Borgerding  Vanessa A. Klein  Rajlakshmi Ghosh  Albert Eibel 《Journal of Science Teacher Education》2015,26(4):371-392

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Responsible action research for the pursuit of justice     

Allan Feldman  Kory Bennett  Vanessa Vernaza-Hernández 《Educational Action Research》2015,23(1):85-103

The pursuit of justice has concerned human beings for centuries and, despite its importance, often remains outside the boundaries of our educational systems. This article reports on a study of an action research seminar for a group of teacher leaders in a position to instigate positive change within their educational context, and make their actions occasions for justice. In order to better understand the textual data generated by the teacher leaders, we devised an analytical lens that draws from modern rabbinical scholarship, eco-political (socio-political) studies, and existentialism. We found at this intersection that, despite the teacher leaders recognizing injustice, and at times protesting against it, their ability to act, formulate solutions, and conduct action research – and even their very concept of justice – was heavily influenced and constrained by the dominant political regime of the US educational system. An explanatory framework emerged that sheds light on the dynamic interplay among justice, politics, and beliefs, while also revealing the constraints to pursuing justice from within a leadership structure. We conclude that for action research to be a means for teachers and teacher leaders to begin to modify their practice so they are sensitive to the voices of the marginalized, to see their actions as opportunities for justice, and to provide collaborative experiences that help other teachers develop their ways of thinking, acting, and interacting in pursuit of justice, those who teach action research must be willing to do the very same.  相似文献   

Classroom behaviour management strategies in response to problematic behaviours of primary school children with special educational needs: views of special educational needs coordinators     

Elizabeth Nye  Frances Gardner  Lorraine Hansford  Vanessa Edwards  Rachel Hayes  Tamsin Ford 《Emotional and Behavioural Difficulties》2016,21(1):43-60

Children identified with special educational needs (SEN) and behavioural difficulties present extra challenges to educators and require additional supports in school. This paper presents views from special educational needs coordinators (SENCos) on various strategies used by educators to support children identified with SEN and problematic behaviours. The data were collected from telephone interviews with six SENCos from the UK’s South West Peninsula. The SENCos were invited to participate because their school was participating in a cluster-randomised trial of a teacher classroom management course (Incredible Years). Using thematic analysis to analyse the data, this paper illustrates strategies deemed by SENCos to be successful in the support of children identified with SEN. The management strategies generated by participating SENCos were then mapped onto those taught as part of the classroom management course for comparison. Findings indicate that strategies from the training programme appear to be appropriate for children identified with both SEN and behavioural difficulties.  相似文献   

‘Am I doing it right?’ Conceptualising the practice of supervising master’s dissertation students     

Ann Macfadyen  Christine English  Michael Kelleher  Maggie Coates  Colin Cameron  Vanessa Gibson 《高等教育研究与发展》2019,38(5):985-1000

ABSTRACT

An action research project involving 25 master’s supervisors, from health and education disciplines, sought to enhance their understanding of dissertation supervision. Recognising that they were sometimes slightly unsure about their role, they sought to identify issues that contributed to this circumstance, and to develop supervisor preparation materials to support future colleagues. During interviews and collaborative workshops, colleagues shared their experiences and reflected with one another on the nature of supervision. Through this process, they constructed a model that conceptualises how they practice. The core element is an ongoing assessment of a student’s readiness, motivation and individual situation. In response to this assessment, supervisors balance three functions: Facilitating, Nurturing and Maintaining Standards. Facilitating encourages student growth through challenge or stimulation. Nurturing involves the provision of support and reassurance within a safe space in which this growth can occur. Maintaining standards ensures that academic and professional rigour are preserved.  相似文献   

Arthrospira maxima (Spirulina) prevents endoplasmic reticulum stress in the kidney through its C-phycocyanin     

Rojas-Franco  Placido  Franco-Colín  Margarita  Blas-Valdivia  Vanessa  Melendez-Camargo  María Estela  Cano-Europa  Edgar 《Journal of Zhejiang University. Science. B》2021,22(7):603-608

正Arthrospira maxima (Spirulina) is a cyanobacterium which is considered a nutraceutical because it has antioxidant, anti-inflammatory, and cytoprotective properties in different renal disease models (RodriguezSánchez et al., 2012; Aziz et al., 2018; Memije-Lazaro et al., 2018).  相似文献   

Achievement versus maintenance of control in six‐year‐old children’s interactions with peers: an observational study     

Vanessa A. Green  Antonius H.N. Cillessen 《教育心理学》2008,28(2):161-180

Conflict management is a skill best learned early in life, and lays a foundation for the development of future relationships. The present study examined the strategies children use when negotiating roles in a dynamic play situation. Participants were 156 children (M age = 6.5 years) in 39 groups of four, who were videotaped in a play activity that required the assistance of two children so that a third could view a cartoon. Groups varied in gender composition (all‐girl, all‐boy, mixed). Children in each group were unfamiliar with one another at the beginning of the session. There was more variation in the strategies children used to elicit the cooperation of peers than in the strategies they used to gain access to the resource. Children who gained high amounts of viewing time but did not often help others (individualists) said and did more to maintain their role, had longer turns, and used both prosocial and coercive strategies more than children who had high viewing times but often helped others (collaborators). Girl groups had more collaborators than boy groups, whereas boy groups had more onlookers (low viewing, low helping). Boys used a greater number and range of strategies to maintain control of the resource than girls did. The highest level of resource use was predicted by a combination of ‘successful entry’ and ‘individualistic maintenance’ strategies. Implications for initiatives to promote negotiation skills and effective conflict management in children are discussed.  相似文献