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181.
The recommendations of a recent workshop (Leiden, Netherlands, November 17–18, 1990) concerning the use of animals in research on aggression and predation are listed. Major considerations included the grade of organisation/level of development of the organism, the duration and intensity of the interaction, post-treatment factors, the number of animals and reuse of animals. It is hoped that the recommendations will help scientists working in these areas to consider the increasingly important ethical dimension. 相似文献
182.
Philosophical Studies - 相似文献
183.
Auditory evoked potentials were recorded during wakefulness, Stage 1, and Stage 2 non-REM sleep using a three-tone auditory oddball paradigm. Stage 1 sleep was divided into trials preceded by alpha and those preceded by theta. A negative wave peaking at about 100 ms, N1, displayed a significant decrease in amplitude with the onset of Stage 2 sleep. A later N2 peaked at about 250 ms in the waking state. This changed into a sleep-specific negative wave peaking at 300 ms (N300) at the alpha-theta transition within Stage 1. The P300 displayed a similar shift to become a P450 in Stage 2 sleep. N550 was specific to Stage 2, and was larger in response to rare, rather than frequent stimuli. There was no evidence of any enhancement to relevant rare stimuli compared with irrelevant rare stimuli. 相似文献
184.
Maryam Gholamrezaei Jack De Stefano Nancy L. Heath 《International journal of psychology》2017,52(4):316-326
The field of nonsuicidal self‐injury (NSSI) is dominated by research conducted with Caucasian‐majority samples in Western countries such as United States, Canada, Australia and European countries. This article critically reviewed the empirical research on NSSI in non‐Western countries and among ethnic/racial minority individuals who live in the West to give voice to and understand the patterns of NSSI among individuals who do not fall within the dominant Caucasian majority. The study found both similarities and differences between Western and non‐Western data in terms of characteristics and functions of NSSI. Differences in gender patterns in regards to prevalence of NSSI and methods used as well as presence of a more relational functionality of NSSI rather than emotion regulation functionality were two points of divergence in the findings of these studies. In addition, the findings seem to indicate that the role of ethnicity/race is mediated by important factors such as socioeconomic status (SES) and gender. Existing gaps in the literature and suggestions for further research are discussed. 相似文献
185.
The System Usability Scale (SUS), developed by Brooke (Usability evaluation in industry, Taylor & Francis, London, pp 189–194,
1996), had a great success among usability practitioners since it is a quick and easy to use measure for collecting users’ usability
evaluation of a system. Recently, Lewis and Sauro (Proceedings of the human computer interaction international conference
(HCII 2009), San Diego CA, USA, 2009) have proposed a two-factor structure—Usability (8 items) and Learnability (2 items)—suggesting that practitioners might
take advantage of these new factors to extract additional information from SUS data. In order to verify the dimensionality
in the SUS’ two-component structure, we estimated the parameters and tested with a structural equation model the SUS structure
on a sample of 196 university users. Our data indicated that both the unidimensional model and the two-factor model with uncorrelated
factors proposed by Lewis and Sauro (Proceedings of the human computer interaction international conference (HCII 2009), San
Diego CA, USA, 2009) had a not satisfactory fit to the data. We thus released the hypothesis that Usability and Learnability are independent
components of SUS ratings and tested a less restrictive model with correlated factors. This model not only yielded a good
fit to the data, but it was also significantly more appropriate to represent the structure of SUS ratings.
相似文献
Simone BorsciEmail: Email: |
186.
The value of λ is one of the main issues debated in international usability studies. The debate is centred on the deficiencies
of the mathematical return on investment model (ROI model) of Nielsen and Landauer (1993). The ROI model is discussed in order
to identify the base of another model that, respecting Nielsen and Landauer’s one, tries to consider a large number of variables
for the estimation of the number of evaluators needed for an interface. Using the bootstrap model (Efron 1979), we can take into account: (a) the interface properties, as the properties at zero condition of evaluation and (b) the probability
that the population discovery behaviour is represented by all the possible discovery behaviours of a sample. Our alternative
model, named Bootstrap Discovery Behaviour (BDB), provides an alternative estimation of the number of experts and users needed
for a usability evaluation. Two experimental groups of users and experts are involved in the evaluation of a website (). Applying the BDB model to the problems identified by the two groups, we found that 13 experts and 20 users are needed to
identify 80% of usability problems, instead of 6 experts and 7 users required according to the estimation of the discovery
likelihood provided by the ROI model. The consequence of the difference between the results of those models is that in following
the BDB the costs of usability evaluation increase, although this is justified considering that the results obtained have
the best probability of representing the entire population of experts and users. 相似文献
187.
Giovanni Piumatti Laura Pipitone Angela Maria Di Vita Delia Latina Emanuela Rabaglietti 《Journal of Adult Development》2014,21(1):1-12
We explored the phenomenon of the transition to adulthood, focusing on how young people cope with various developmental tasks in relation to their expectations, future projects, fears and indecision in two Italian regional areas characterized by different trends in youth employability, higher educational attainment and family formation process. We measured self-perceived adulthood, self-reported satisfaction, independence, perceived support regarding personal relationships and practical and economical issues, personal projections and future life’s choices. We also explored the perception of self-fulfillment for the future concerning personal goals in life, such as in the spheres of work, studies and economic autonomy together with expectations for the quality of personal relationships. One hundred and sixty nonworking university students (M age = 22.6; SD = 2.77; range = 19–35) from the Universities of Turin and Palermo took part in this study. Sub-groups differed on self-perceived adulthood, self-reported satisfaction, independence, perceived support and self-fulfillment. Psychological and economic independence from the family of origin was most perceived by the participants from Turin who reported a higher degree of satisfaction regarding their choice of studies and their future perspective of self-fulfillment at work. Young people from Palermo highlighted personal relationships as an important source of perceived support. 相似文献
188.
Ottavia Albanese Simona De Stasio Carlo Di Chiacchio Caterina Fiorilli Francisco Pons 《The Journal of genetic psychology》2013,174(2):101-115
A substantial body of research has established that emotion understanding develops throughout early childhood and has identified three hierarchical developmental phases: external, mental, and reflexive. The authors analyzed nonverbal intelligence and its effect on children's improvement of emotion understanding and hypothesized that cognitive level is a consistent predictor of emotion comprehension. In all, 366 children (182 girls, 184 boys) between the ages of 3 and 10 years were tested using the Test of Emotion Comprehension and the Coloured Progressive Matrices. The data obtained by using the path analysis model revealed that nonverbal intelligence was statistically associated with the ability to recognize emotions in the 3 developmental phases. The use of this model showed the significant effect that cognitive aspect plays on the reflexive phase. The authors aim to contribute to the debate about the influence of cognitive factors on emotion understanding. 相似文献
189.
190.
Previous research has indicated that reports of panic attacks are associated with a different set of symptoms to reports of generalized anxiety. The present two studies attempted to extend these findings to specific (situational) fears. In Study 1, 55 subjects with panic disorder were compared on their symptom profile during their panic attacks to 65 subjects with other anxiety disorders [simple phobia, social phobia and obsessive-compulsive disorder (OCD)] during response to their feared cue. The results indicated that, compared to subjects with other anxiety disorders, subjects with panic disorder were more likely to report parasthesias, dizziness, faintness, unreality, dyspnea, fear of dying and fear of going crazy/losing control. In Study 2, 90 subjects meeting diagnostic criteria for both panic disorder and another anxiety disorder (simple phobia, social phobia or OCD) were compared on the symptoms experienced during their unexpected panic attacks and their situationally-triggered fears respectively. Combining the symptoms found in Study 1 to differ between the groups into a linear combination, there was a significant interaction found between the type of fear reaction (panic attack vs cued fear response) and symptom group. Taken together, these findings suggest that reports of unexpected panic attacks associated with panic disorder are characterized by a different symptom profile to reports of specific fear reactions that are part of a phobic disorder or OCD. 相似文献