积极心理学视野下的工作压力

工作压力是职业健康心理学研究的重要领域。随着经济发展,工作压力问题日益突出,它降低了生产率,使员工的健康受损,增加了成本消耗。但是以往的研究主要关注压力的消极面,干预方法也是以预防和治疗为主。然而积极心理学运动的兴起改变了传统的工作压力研究方法,提出积极压力的概念,倡导以健康、整合的方式建立一个完整的工作压力模型。并提出在预防和治疗消极压力的同时,也要重视激发积极压力。     

Distinctions between hedonic and eudaimonic well-being: Results from a day reconstruction study among Norwegian jobholders

The study suggests that hedonic and eudaimonic well-being can be studied by theoretical and empirical analysis of subjective feelings. In this approach, pleasure is the hallmark of hedonism, and engagement serves as the core feeling of eudaimonia. The Day Reconstruction Method was used to investigate the assumption that overall life satisfaction predicts hedonic feelings but not eudaimonic feelings during a workday. Perceived job control was hypothesized to predict eudaimonic feelings but not hedonic feelings. Questionnaire data from 120 Norwegian jobholders were analyzed, providing support for the hypothesis. Moreover, pleasure was found to be relatively unrelated to engagement, and perceived control was basically unrelated to life satisfaction. The results are discussed against the background that hedonism and eudaimonia are two independent parts of a multidimensional concept of well-being.     

Applying an exemplar model to the artificial-grammar task: Inferring grammaticality from similarity

We present three artificial-grammar experiments. The first used position constraints, and the second used sequential constraints. The third varied both the amount of training and the degree of sequential constraint. Increasing both the amount of training and the redundancy of the grammar benefited participants' ability to infer grammatical status; nevertheless, they were unable to describe the grammar. We applied a multitrace model of memory to the task. The model used a global measure of similarity to assess the grammatical status of the probe and captured performance both in our experiments and in three classic studies from the literature. The model shows that retrieval is sensitive to structure in memory, even when individual exemplars are encoded sparsely. The work ties an understanding of performance in the artificial-grammar task to the principles used to understand performance in episodic-memory tasks.     

Beyond intensity: Spectral features effectively predict music-induced subjective arousal

Emotions in music are conveyed by a variety of acoustic cues. Notably, the positive association between sound intensity and arousal has particular biological relevance. However, although amplitude normalization is a common procedure used to control for intensity in music psychology research, direct comparisons between emotional ratings of original and amplitude-normalized musical excerpts are lacking.

In this study, 30 nonmusicians retrospectively rated the subjective arousal and pleasantness induced by 84 six-second classical music excerpts, and an additional 30 nonmusicians rated the same excerpts normalized for amplitude. Following the cue-redundancy and Brunswik lens models of acoustic communication, we hypothesized that arousal and pleasantness ratings would be similar for both versions of the excerpts, and that arousal could be predicted effectively by other acoustic cues besides intensity.

Although the difference in mean arousal and pleasantness ratings between original and amplitude-normalized excerpts correlated significantly with the amplitude adjustment, ratings for both sets of excerpts were highly correlated and shared a similar range of values, thus validating the use of amplitude normalization in music emotion research. Two acoustic parameters, spectral flux and spectral entropy, accounted for 65% of the variance in arousal ratings for both sets, indicating that spectral features can effectively predict arousal. Additionally, we confirmed that amplitude-normalized excerpts were adequately matched for loudness. Overall, the results corroborate our hypotheses and support the cue-redundancy and Brunswik lens models.     

Working memory and number line representations in single-digit addition: Approximate versus exact,nonsymbolic versus symbolic

How do kindergarteners solve different single-digit addition problem formats? We administered problems that differed solely on the basis of two dimensions: response type (approximate or exact), and stimulus type (nonsymbolic, i.e., dots, or symbolic, i.e., Arabic numbers). We examined how performance differs across these dimensions, and which cognitive mechanism (mental model, transcoding, or phonological storage) underlies performance in each problem format with respect to working memory (WM) resources and mental number line representations. As expected, nonsymbolic problem formats were easier than symbolic ones. The visuospatial sketchpad was the primary predictor of nonsymbolic addition. Symbolic problem formats were harder because they either required the storage and manipulation of quantitative symbols phonologically or taxed more WM resources than their nonsymbolic counterparts. In symbolic addition, WM and mental number line results showed that when an approximate response was needed, children transcoded the information to the nonsymbolic code. When an exact response was needed, however, they phonologically stored numerical information in the symbolic code. Lastly, we found that more accurate symbolic mental number line representations were related to better performance in exact addition problem formats, not the approximate ones. This study extends our understanding of the cognitive processes underlying children's simple addition skills.     

Drunken Role Models: Rescuing Our Sporting Exemplars

It is often claimed that elite professional athletes are role models and as such have certain duties to behave in morally appropriate ways. The argument is that given their influential status and influence, they should be good examples rather than bad ones. In relation to alcohol consumption and the problematic behaviours associated with excessive consumption, many professional athletes are bad role models. They consume too much and behave badly. Drawing on neo-Aristotelian insights I argue the following. First, persons who exhibit good character and virtues like self-control are preferable to those who exemplify vice like recklessness and selfishness in general and in relation to alcohol consumption in particular. To exhibit virtue is both good in itself and preferable from a moral education perspective. In other words it is better to exemplify virtue in front of others who may follow the example. Second, acting well and becoming the right sort is notoriously difficult and the moral atmosphere or the ethos of the culture in which virtue plays out has a significant impact. It is important therefore to include the ethos of sporting practice in any proposed reform of drinking behaviour such that tolerance and tacit promotion of masculine drinking practices is eschewed in favour of responsible and considerate consumption. Finally I argue that we must cultivate the proper virtue of emulation so that people who are admired or esteemed (sporting heroes) by young people in particular are not copied blindly. In other words it is important to cultivate a critical capacity to recognise worthy role models and to avoid identifying with unworthy characters, practices and vices. Part of this process is to highlight proper and worthy role models inside and outside of sport. In conclusion, I believe that although bad role models are grabbing the headlines in relation to problematic drinking practices, there are good role models in sport who should be lauded as exemplars of good character living a worthwhile sporting life. Such characters can show those inside and outside the practice community a more responsible and considerate approach to alcohol.     

Changing-state disruption of lip-reading by irrelevant sound in perceptual and memory tasks

Three experiments investigated irrelevant sound interference of lip-read lists. In Experiment 1, an acoustically changing sequence of nine irrelevant utterances was more disruptive to spoken immediate identification of lists of nine lip-read digits than nine repetitions of the same utterances (the changing-state effect; Jones, Madden, & Miles, 1992). Experiment 2 replicated this finding when lip-read items were sampled with replacement from the nine digits to form the lip-read lists. In Experiment 3, when the irrelevant sound was confined to the retention interval of a delayed recall task, a changing-state pattern of disruption also occurred. Results confirm a changing-state effect in memory for lip-read items but also point to the possibility that, for lip-reading, changing-state effects may occur at an earlier, perceptual stage.     

Executive control is shared between sentence processing and digit maintenance: Evidence from a strictly timed dual-task paradigm

We investigated whether the comprehension of syntactically difficult sentences taxes the executive control component of working memory more than the comprehension of their easier counterparts. To that end, we tested the effect of sharing executive control between sentence comprehension and the maintenance of a digit load in two dual-task experiments with strictly controlled timing (Barrouillet, Bernardin, & Camos, 2004). Recall was worse after participants had processed one (Experiment 2) or two (Experiment 1) difficult sentences than after they had processed one or two easy sentences, respectively. This finding suggests that sentence processing and the maintenance of a digit load share executive control. Processing syntactically difficult sentences seems to occupy executive control for a longer time than processing their easy counterparts, thereby blocking refreshments of the memory traces of the digits so that these traces decay more and recall is worse. There was no effect of the size of the digit load on sentence-processing performance (Experiment 2), suggesting that sentence processing completely occupied executive control until processing was complete.     

Differential effects of cue specificity and list length on the prospective and retrospective prospective-memory components

Event-based prospective memory (PM) refers to the ability to remember to perform an intended action at an appropriate moment that is indicated by some cue. It has been shown that increasing the number of PM cues as well as decreasing the cues' specificity can impair PM performance. Although both manipulations result in similar detrimental effects to PM accuracy, they may affect different underlying cognitive processes. To test this hypothesis, we manipulated both the number of cues and cue specificity and found the expected detrimental effects on PM accuracy. Analyses with the multinomial model of PM, which considers false PM responses and accounts for guessing biases, imply that the cue-list-length manipulation affected cue singularisation as well as intention retrieval, whereas cue specificity selectively affected intention retrieval. These results are original evidence that the performance decrements from the two manipulations have different cognitive underpinnings.     

Priming effect on the exceptive conditional ‘except if’

Here we report the results of one priming experiment that examines the comprehension of exceptive conditionals—for example, ‘Mary will go out tonight except if she has an exam tomorrow’—and indicative conditionals—for example, ‘Mary will not go out tonight if she has an exam tomorrow’. The experiment showed that participants read the true possibility ‘Mary is not going out tonight and she has an exam tomorrow’ faster when it was primed by an exceptive conditional than when it was primed by an indicative; other possibilities (‘Mary is going out tonight and she does not have an exam tomorrow’, ‘Mary is going out tonight and she has an exam tomorrow’ and ‘Mary is not going out tonight and she does not have an exam tomorrow’) were primed equally by both connectives. The experiments showed that (1) when people understand ‘B except if A’, they access the true possibilities ‘not-A & B’ and ‘A & not-B’, and (2) when they understand ‘B, if not-A’ they access ‘not-A & B’, but they do not access ‘A & not-B’. We discuss the implications of this for current theories of reasoning.