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91.
    
Human languages vary in many ways but also show striking cross‐linguistic universals. Why do these universals exist? Recent theoretical results demonstrate that Bayesian learners transmitting language to each other through iterated learning will converge on a distribution of languages that depends only on their prior biases about language and the quantity of data transmitted at each point; the structure of the world being communicated about plays no role (Griffiths & Kalish, 2005 , 2007 ). We revisit these findings and show that when certain assumptions about the relationship between language and the world are abandoned, learners will converge to languages that depend on the structure of the world as well as their prior biases. These theoretical results are supported with a series of experiments showing that when human learners acquire language through iterated learning, the ultimate structure of those languages is shaped by the structure of the meanings to be communicated.  相似文献   
92.
    
Emotional reactions are crucial in survival because they provide approach and withdrawal behaviors. However, an unsolved question is whether the social content of the affective stimuli has a specific effect on emotional responses. We studied whether the social content of affective pictures influenced the defensive response and response mobilization. For this purpose, we recorded startle blink reflex (a defensive response) and skin conductance responses (a measure of unspecific physiological reactivity or arousal) in 73 participants while they viewed a series of 81 pictures of varying affective valence and social content. Our results revealed that defense response, as indicated by increases in the magnitude of the startle blink reflex, was mainly dependent on threatening or unpleasant cues, but was unrelated to the social content of the pictures. The social content, however, had an influence on pleasant stimuli, provoking an increase in resource mobilization, as reflected by changes in electrodermal activity. Hence, the social content of the affective stimuli may increase the physiological arousal elicited by pleasant stimuli, and it appears to be unrelated to the defense reactivity provoked by unpleasant stimuli.  相似文献   
93.
    
We conducted a series of experiments to determine the relative contribution of unsupervised versus controlled mechanisms to the intermixed-blocked effect. In Experiment 1, participants received pre-exposure instructions prompting a search for differences between stimuli, in keeping with past studies, and the intermixed-blocked effect was observed. In the remaining experiments, participants did not receive the aforementioned instructions, but instead were instructed either to simply observe the stimuli (Experiment 2) or in relation to a masking task (Experiment 3). None of the latter experiments produced an intermixed-blocked effect, suggesting that the effect found in Experiment 1 was driven by the instructions to search for differences, consistent with a controlled processing account of the effect. Moreover, we tested a prediction assuming the operation of a search strategy against one assuming the operation of a short-term habituation mechanism and found evidence more consistent with the search strategy hypothesis. We formulate a new account of the intermixed-blocked effect in humans based on an instruction-driven search and discuss how the account could explain many findings in the human literature.  相似文献   
94.
Given recent policy initiatives to address suicide risk among older persons and veterans, community‐based elder serving agencies may serve an important role in identifying and referring individuals at risk for suicide. A review of state‐level long‐term assessment instruments was conducted to determine whether veteran status and suicide are assessed. Data from forty‐three state's Units on Aging instruments were content analyzed. Results indicate that over two thirds of the states in this review included questions about suicide and veterans in their assessments, 69.8% and 67.4% respectively. Suicide risk among elders and veterans must be addressed at local, state, and federal levels so that concerted attention and oversight can be provided for matching elders to the services they need.  相似文献   
95.
Beliefs and attitudes positives toward domestic violence are one of the risks factors for his occurrence. Among his most studied predictors are gender, gender role attitudes or educational level. In this paper, domestic violence beliefs and attitudes are analysed in 1395 university students. "Inventory of Thoughts Distorted on the Woman and the Violence" (Echeburúa and Fernández-Montalvo, 1997) and "Inventory of Social Desirability" by Crowne and Marlowe (Form C, Reynolds, 1982) were administrated. Boys and students without specific formation about this subject show more positive beliefs and attitudes toward domestic violence. Though social desirability introduces some limitations, these results suggest the importance of incorporating matters on this subject in the curriculum of university students in general and, especially, in future professional that will work with these groups.  相似文献   
96.
Interpretation mistakes in statistical methods: Their importance and some recommendations. Prior research has identified some of the most common misconceptions on how researchers interpret the results of significance tests. In this study, we examine the scope of these misconceptions in a sample of university professors and researchers from Spain on the basis of a short questionnaire. The obtained results provide important information: i) to prevent wrong interpretation from the data, ii) to correct the wrong use of statistical testing, iii) to suggest new ways of examining the data, and iv) to propose some modifications on the editorial criteria to publish scientific work.  相似文献   
97.
The affective events theory proposes that daily events elicit affective reactions on workers that, over time, influence affective and judgement-driven behaviours. It also suggests that this relation is moderated by dispositions and appraisals. On the other hand, the social interaction model argues that the impact of emotions is moderated by how individuals regulate them. This study aimed to: (1) investigate what customer-related events elicit affect; (2) test the moderating role of workers’ susceptibility for emotional contagion on the relation events-affect; and (3) explore whether affective states influence cardiovascular efficiency and turnover intentions. We conducted a longitudinal study in an inbound call centre by following 48 workers during 10 working days, gathering 267 events and 1,232 affective reactions. We combined diaries, questionnaires and physiological data. Data was analysed qualitatively and quantitatively. We extracted 13 event categories and, using artificial neural networks (ANN), found support for the moderating role of emotional contagion. At daily level, fear was the stronger predictor of cardiovascular efficiency, whereas anger was the stronger predictor of turnover. ANN models showed satisfactory predictive values (R2Turnover = .51, p < .01; R2Cardiovascular efficiency = .32, p < .01). The importance of results for theory and practice is discussed.  相似文献   
98.
Computer Assisted Learning (CAL) has been shown to be an efficient learning-teaching procedure. Although there is an extensive educational software tradition using CAL approaches, few of them have demonstrated a better student performance than standard drill and practice methods. The purpose of this study was (a) to evaluate the effectiveness of the Let's Play With... software program, and (b) to evaluate the effectiveness of a prompt (i.e. a blinking object) used in the program. The educational software Let's Play With... was designed to teach basic concepts involving shapes and body positions to preschool students. The software structure follows a behavioral design and uses a stimulus control procedure. The study was carried out with 64 preschool students in the Cadiz (Spain) School District. Statistically significant differences were found between the experimental group and a control group.  相似文献   
99.
100.
ObjectivesThe current study investigated to what extent task-specific practice can help reduce the adverse effects of high-pressure on performance in a simulated penalty kick task. Based on the assumption that practice attenuates the required attentional resources, it was hypothesized that task-specific practice would enhance resilience against high-pressure.MethodParticipants practiced a simulated penalty kick in which they had to move a lever to the side opposite to the goalkeeper's dive. The goalkeeper moved at different times before ball-contact.DesignBefore and after task-specific practice, participants were tested on the same task both under low- and high-pressure conditions.ResultsBefore practice, performance of all participants worsened under high-pressure; however, whereas one group of participants merely required more time to correctly respond to the goalkeeper movement and showed a typical logistic relation between the percentage of correct responses and the time available to respond, a second group of participants showed a linear relationship between the percentage of correct responses and the time available to respond. This implies that they tended to make systematic errors for the shortest times available. Practice eliminated the debilitating effects of high-pressure in the former group, whereas in the latter group high-pressure continued to negatively affect performance.ConclusionsTask-specific practice increased resilience to high-pressure. However, the effect was a function of how participants responded initially to high-pressure, that is, prior to practice. The results are discussed within the framework of attentional control theory (ACT).  相似文献   
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