首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
The boundary paradigm (Rayner, 1975) with a novel preview manipulation was used to examine the extent of parafoveal processing of words to the right of fixation. Words n+1 and n+2 had either correct or incorrect previews prior to fixation (prior to crossing the boundary location). In addition, the manipulation utilized either a high or low frequency word in word n+1 location on the assumption that it would be more likely that n+2 preview effects could be obtained when word n+1 was high frequency. The primary findings were that there was no evidence for a preview benefit for word n+2 and no evidence for parafoveal-on-foveal effects when word n+1 is at least four letters long. We discuss implications for models of eye-movement control in reading.  相似文献   

2.
This study examined the efficacy of a Photovoice‐based video as a novel online anti‐stigma video in reducing mental illness stigma, as well as the role of empathic concern in stigma reduction. Photovoice is a grassroots process by which members of a marginalized group, such as people with a mental illness, document and convey their experience; in this study’s context, the experience of living with a mental illness and the stigma associated with this experience. Canadian undergraduate university students (n = 303; average age = 21) were randomly assigned to view either a Photovoice‐based anti‐stigma intervention video (n = 156) or a control video (n = 147). Compared to the control condition, the Photovoice‐based video was efficacious in reducing mental illness stigma, including reduced fear and anger toward people with a mental illness, decreased perceptions of dangerousness, and decreased desired social distance. In addition, the intervention was efficacious in maintaining reduced desired social distance relative to the control at 1‐month post‐intervention. Finally, empathic concern was found to mediate the relationship between the Photovoice‐based video and reduced mental illness stigma, suggesting that one way the intervention reduced mental illness stigma was by eliciting empathy in the viewer.  相似文献   

3.
We conducted a scoping review of interventions that have been implemented classroom-wide in college classroom settings. We searched nine behavior-analytic journals from 2000 through 2020. We identified 59 studies that met our inclusion criteria and organized them into 13 categories: acceptance and commitment therapy (n = 1), equivalence-based instruction (n = 1), SAFMEDS (n = 4), guided notes (n = 4), response cards (n = 5), group contingencies (n = 5), interteaching (n = 6), programmed instruction, PSI, computer-aided (CA)PSI (n = 7), contingency arrangements (n = 15), feedback (n = 4), online delivery techniques (n = 4), game study sessions (n = 2), and peer-generated examples (n = 1). The interventions have been used with undergraduate and graduate students across various course topics and modalities. Most interventions produced positive results, commonly assessed via quiz and exam scores. This review presents the scope of interventions, their characteristics, and recommendations for future research.  相似文献   

4.
Japan's remuneration systems are moving away from seniority-based pay towards individual performance-based pay. We tested how the latter system works within the Japanese cultural context and whether the operation and functioning of the system reflects general psychological tendencies found in Japan. Japanese (Study 1 n = 197; Study 2 n = 235) and European American (Study 1 n = 201; Study 2 n = 186) participants read vignettes that described workplace success centred on a focal employee and including a team. Participants attributed contribution and rewards (financial and status) to a range of agents and factors with graded levels of focus, from the focal employee having the greatest and luck having the least. In general, we found that Japanese participants attributed greater contribution and reward to less focal agents and factors while European American participants attributed greater contribution and reward to more focal agents, in addition to some specific differences between the tasks and reward types. We discuss implications for more nuanced theorizing of the interaction between institutional systems and psychological processes.  相似文献   

5.
First we show that the classical two-player semantic game actually corresponds to a three-valued logic. Then we generalize this result and give an n-player semantic game for an n + 1-valued logic with n binary connectives, each associated with a player. We prove that player i has a winning strategy in game if and only if the truth value of is t i in the model M, for 1 ≤ in; and none of the players has a winning strategy in if and only if the truth value of is t 0 in M.  相似文献   

6.
How is reading development reflected in eye-movement measures? How does the perceptual span change during the initial years of reading instruction? Does parafoveal processing require competence in basic word-decoding processes? We report data from the first cross-sectional measurement of the perceptual span of German beginning readers (n = 139), collected in the context of the large longitudinal PIER (Potsdamer Intrapersonale Entwicklungsrisiken/Potsdam study of intra-personal developmental risk factors) study of intrapersonal developmental risk factors. Using the moving-window paradigm, eye movements of three groups of students (Grades 1–3) were measured with gaze-contingent presentation of a variable amount of text around fixation. Reading rate increased from Grades 1–3, with smaller increases for higher grades. Perceptual-span results showed the expected main effects of grade and window size: fixation durations and refixation probability decreased with grade and window size, whereas reading rate and saccade length increased. Critically, for reading rate, first-fixation duration, saccade length and refixation probability, there were significant interactions of grade and window size that were mainly based on the contrast between Grades 3 and 2 rather than Grades 2 and 1. Taken together, development of the perceptual span only really takes off between Grades 2 and 3, suggesting that efficient parafoveal processing presupposes that basic processes of reading have been mastered.  相似文献   

7.
Zellini (1979, Theorem 3.1) has shown how to decompose an arbitrary symmetric matrix of ordern ×n as a linear combination of 1/2n(n+1) fixed rank one matrices, thus constructing an explicit tensor basis for the set of symmetricn ×n matrices. Zellini's decomposition is based on properties of persymmetric matrices. In the present paper, a simplified tensor basis is given, by showing that a symmetric matrix can also be decomposed in terms of 1/2n(n+1) fixed binary matrices of rank one. The decomposition implies that ann ×n ×p array consisting ofp symmetricn ×n slabs has maximal rank 1/2n(n+1). Likewise, an unconstrained INDSCAL (symmetric CANDECOMP/PARAFAC) decomposition of such an array will yield a perfect fit in 1/2n(n+1) dimensions. When the fitting only pertains to the off-diagonal elements of the symmetric matrices, as is the case in a version of PARAFAC where communalities are involved, the maximal number of dimensions can be further reduced to 1/2n(n–1). However, when the saliences in INDSCAL are constrained to be nonnegative, the tensor basis result does not apply. In fact, it is shown that in this case the number of dimensions needed can be as large asp, the number of matrices analyzed.  相似文献   

8.
Varma S  Schwartz DL 《Cognition》2011,(3):363-385
Mathematics has a level of structure that transcends untutored intuition. What is the cognitive representation of abstract mathematical concepts that makes them meaningful? We consider this question in the context of the integers, which extend the natural numbers with zero and negative numbers. Participants made greater and lesser judgments of pairs of integers. Experiment 1 demonstrated an inverse distance effect: When comparing numbers across the zero boundary, people are faster when the numbers are near together (e.g., −1 vs. 2) than when they are far apart (e.g., −1 vs. 7). This result conflicts with a straightforward symbolic or analog magnitude representation of integers. We therefore propose an analog-x hypothesis: Mastering a new symbol system restructures the existing magnitude representation to encode its unique properties. We instantiate analog-x in a reflection model: The mental negative number line is a reflection of the positive number line. Experiment 2 replicated the inverse distance effect and corroborated the model. Experiment 3 confirmed a developmental prediction: Children, who have yet to restructure their magnitude representation to include negative magnitudes, use rules to compare negative numbers. Taken together, the experiments suggest an abstract-to-concrete shift: Symbolic manipulation can transform an existing magnitude representation so that it incorporates additional perceptual-motor structure, in this case symmetry about a boundary. We conclude with a second symbolic-magnitude model that instantiates analog-x using a feature-based representation, and that begins to explain the restructuring process.  相似文献   

9.
Diagrams are effective tools for problem solving. However, previous findings indicate that students generally do not use diagrams spontaneously. This study examined task‐related factors that may influence the spontaneity of diagram use. Experiment 1 compared two possible explanations: the first, that the length‐relatedness of the story context of the problem (i.e. whether it involves the measurement of length) determines the likelihood of diagram use; and the second, that the cognitive cost of transforming the situation described in the word problem to an abstract diagrammatic representation is the more important factor. Four math word problems, differing in their story context and structure, were administered to eighth‐grade Japanese students (n = 125) to solve. The results provide support for the cognitive transformation cost explanation. The results of experiment 2, in which the problems were administered to students in both Japan (n = 291) and New Zealand (n = 323), confirm this finding. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   

10.
Eye-movement experiments suggest that the perceptual span during reading is larger than the fixated word, asymmetric around the fixation position, and shrinks in size contingent on the foveal processing load. We used the SWIFT model of eye-movement control during reading to test these hypotheses and their implications under the assumption of graded parallel processing of all words inside the perceptual span. Specifically, we simulated reading in the boundary paradigm and analysed the effects of denying the model to have valid preview of a parafoveal word n + 2 two words to the right of fixation. Optimizing the model parameters for the valid preview condition only, we obtained span parameters with remarkably realistic estimates conforming to the empirical findings on the size of the perceptual span. More importantly, the SWIFT model generated parafoveal processing up to word n + 2 without fitting the model to such preview effects. Our results suggest that asymmetry and dynamic modulation are plausible properties of the perceptual span in a parallel word-processing model such as SWIFT. Moreover, they seem to guide the flexible distribution of processing resources during reading between foveal and parafoveal words.  相似文献   

11.
How does culture influence the ways in which individuals reflect upon their knowledge of others’ mental states? We addressed this question in a two‐study cross‐cultural investigation examining perceptions of mental state access in the United States and Japan. Study 1 (n = 100) revealed that American participants reported greater mental state access than did Japanese participants. Study 2 (= 146) showed that both Americans and Japanese perceived greater access to the mental states of a close friend relative to a casual friend and that the observed cultural differences in perceived mental state access to a close friend’s mental states were mediated by how much access was considered appropriate. Overall, the results indicate that culturally variable norms specifying appropriate levels of mental state access play an important role in how individuals estimate their knowledge of other people’s minds in close relationships.  相似文献   

12.
Maternal mental health problems can negatively impact children's physiological stress regulation. Yet, little is known of their long‐term effects, especially related to the timing of maternal symptoms. We examined how maternal mental health problems during pregnancy versus in the early postpartum period predict children's cortisol levels and diurnal patterns at 10–12 years. Participants were a selection (N = 102) of an original sample of 805 Finnish families, who were followed from the second trimester of pregnancy (T1) to child's age of 2 months (T2) and 12 months (T3), and again at child's age of 10–12 years (T4). Based on the timing of psychological distress and depressive symptoms (T1–T3), the mothers could be assigned to three distinct mental health trajectory groups: mothers with prenatal mental health problems (n = 15), mothers with early postpartum mental health problems (n = 15) and mothers without mental health problems (n = 72). Children's cortisol (T4) was measured by saliva samples through five within‐1‐day assessments. The results show that maternal prenatal mental health problems predicted a relatively steep increase of child cortisol from awakening to 1 h later, indicating an intensified cortisol awakening response (CAR). Mothers' early postpartum mental health problems instead predicted a reduced CAR. Both maternal prenatal and postnatal mental health problems thus predicted children's later stress regulation, but in unique ways. We discuss the specific roles of direct biochemical effects during pregnancy and postpartum mother–infant interaction quality as modifiers of the hypothalamic–pituitary–adrenal system. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   

13.
Social identity processes and mindfulness are two important predictors of well-being. Yet, to date, these predictors have been studied independently, within separate research fields. This paper aims to provide an initial integration of these two research fields. Our research was conducted in a context characterized by multiple chronic stressors: A maximum security prison in Kenya. In particular, two studies measured social identification with a mindfulness group and dispositional mindfulness. We investigated the effects of these constructs on three well-being measures: mental well-being, resilience (Studies 1 & 2), and reduction of substance use (Study 2). Our results, replicated across two studies (Study 1: N = 82, Study 2: N = 145), revealed that both social identification with the mindfulness group and mindfulness predicted psychological outcomes. Social identification explained variance in mental well-being and resilience in addition to the variance explained by mindfulness. Study 2 additionally showed that both identification and mindfulness were positively related to a reduction in substance use. However, when examined together, social identification held all the explanatory power, and mindfulness was no longer a significant predictor. From the overall results, we argue that social identity processes can be fruitfully combined with mindfulness in well-being programs delivered in high-stress environments such as prisons. Theoretical and practical implications are discussed.  相似文献   

14.
Statistics of Intuitionistic versus Classical Logics   总被引:2,自引:1,他引:1  
Kostrzycka  Zofia  Zaionc  Marek 《Studia Logica》2004,76(3):307-328
For the given logical calculus we investigate the proportion of the number of true formulas of a certain length n to the number of all formulas of such length. We are especially interested in asymptotic behavior of this fraction when n tends to infinity. If the limit exists it is represented by a real number between 0 and 1 which we may call the density of truth for the investigated logic. In this paper we apply this approach to the intuitionistic logic of one variable with implication and negation. The result is obtained by reducing the problem to the same one of Dummett's intermediate linear logic of one variable (see [2]). Actually, this paper shows the exact density of intuitionistic logic and demonstrates that it covers a substantial part (more than 93%) of classical prepositional calculus. Despite using strictly mathematical means to solve all discussed problems, this paper in fact, may have a philosophical impact on understanding how much the phenomenon of truth is sporadic or frequent in random mathematics sentences.  相似文献   

15.

Australia has undergone significant youth mental health reform over the past 10 years, leading to numerous studies examining the effects of community-based mental health care programs for Australian youth. However, no synthesis of this literature currently exists. Therefore, this systematic review aimed to: (1) describe the types of community-based mental health programs that have been delivered to Australian youth in the past 10 years; and (2) examine their impact in improving young people’s mental health symptomology and psychosocial functioning. A systematic search of the peer-reviewed literature was conducted. Studies were included if they evaluated the extent to which such programs improved mental health symptomology (e.g., depression, anxiety, substance use) and/or psychosocial outcomes (e.g., social functioning, school engagement, employment) for Australian youth aged 10–25 years. Thirty-seven studies were included. Four types of community-based youth mental health care programs were identified: therapy (n?=?16), case management (n?=?9), integrated ‘one-stop-shop’ (n?=?6) and lifestyle (n?=?6) programs. The majority of therapeutic programs were effective in reducing mental health symptomology. Case management and integrated approaches consistently yielded significant improvements in both symptomology and psychosocial outcomes. Lifestyle programs were effective in alleviating depressive symptoms, but inconclusive for other outcomes. This review provides support for youth-friendly, systemic, multidisciplinary and integrated assertive outreach models of community mental health care to improve outcomes for young Australians experiencing mental health concerns. Several recommendations for future research are provided to strengthen the local evidence-base supporting community mental health programs to ultimately enhance young people’s life trajectory.

  相似文献   

16.
17.
It is a known result that the set of distinct semiorders on n elements, up to permutation, is in bijective correspondence with the set of all Dyck paths of length 2n. I generalize this result by defining a bijection between a set of lexicographic semiorders, termed simple lexicographic semiorders, and the set of all pairs of non-crossing Dyck paths of length 2n. Simple lexicographic semiorders have been used by behavioral scientists to model intransitivity of preference (e.g., Tversky, 1969). In addition to the enumeration of this set of lexicographic semiorders, I discuss applications of this bijection to decision theory and probabilistic choice.  相似文献   

18.
What aspects of infants’ prelinguistic communication are most valuable for learning to speak, and why? We test whether early vocalizations and gestures drive the transition to word use because, in addition to indicating motoric readiness, they (a) are early instances of intentional communication and (b) elicit verbal responses from caregivers. In study 1, 11 month olds (N = 134) were observed to coordinate vocalizations and gestures with gaze to their caregiver's face at above chance rates, indicating that they are plausibly intentionally communicative. Study 2 tested whether those infant communicative acts that were gaze‐coordinated best predicted later expressive vocabulary. We report a novel procedure for predicting vocabulary via multi‐model inference over a comprehensive set of infant behaviours produced at 11 and 12 months (n = 58). This makes it possible to establish the relative predictive value of different behaviours that are hierarchically organized by level of granularity. Gaze‐coordinated vocalizations were the most valuable predictors of expressive vocabulary size up to 24 months. Study 3 established that caregivers were more likely to respond to gaze‐coordinated behaviours. Moreover, the dyadic combination of infant gaze‐coordinated vocalization and caregiver response was by far the best predictor of later vocabulary size. We conclude that practice with prelinguistic intentional communication facilitates the leap to symbol use. Learning is optimized when caregivers respond to intentional vocalizations with appropriate language.  相似文献   

19.
In the context of the COVID-19 pandemic, personal protective measures (e.g., social distancing, handwashing, and mask wearing) have been adopted as a cornerstone to limit the spread of the disease. Yet, the effectiveness of these measures depends on people's levels of adherence. In this article, we apply social-psychological research to the study of compliance with personal protective measures during the COVID-19 pandemic in Chile. We consider three possible models underlying adherence: (1) sociodemographic and socioeconomic factors, (2) instrumental factors, and (3) normative factors. We draw on data from a longitudinal nonrepresentative panel study (Study 1, n = 32,304) and a cross-sectional representative survey (Study 2, n = 1,078) to explore the impact of these different factors on personal protective measures compliance. Findings show the strongest support for the role of instrumental and normative factors, in that people who comply with protective measures report to a greater extent that relatives and friends comply too and tend to perceive high risk of COVID-19. We finish by proposing policy recommendations to promote effective strategies to contain the spread of the virus.  相似文献   

20.
The Mental Health First Aid First Nations course was adapted from Mental Health First Aid Basic to create a community‐based, culturally safe and relevant approach to promoting mental health literacy in First Nations contexts. Over 2.5 days, the course aims to build community capacity by teaching individuals to recognize and respond to mental health crises. This feasibility trial utilized mixed methods to evaluate the acceptability, cultural adaptation, and preliminary effectiveness of MHFAFN. Our approach was grounded in community‐based participatory research principles, emphasizing relationship‐driven procedures to collecting data and choice for how participants shared their voices. Data included participant interviews (n = 89), and surveys (n = 91) from 10 groups in four provinces. Surveys contained open‐ended questions, retrospective pre‐post ratings, and a scenario. We utilized data from nine facilitator interviews and 24 facilitator implementation surveys. The different lines of evidence converged to highlight strong acceptability, mixed reactions to the cultural adaptation, and gains in participants’ knowledge, mental health first aid skill application, awareness, and self‐efficacy, and reductions in stigma beliefs. Beyond promoting individual gains, the course served as a community‐wide prevention approach by situating mental health in a colonial context and highlighting local resources and cultural strengths for promoting mental well‐being.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号