Working memory resources in young children with mathematical difficulties

Kyttälä, M., Aunio, P. & Hautamäki, J. (2010). Working memory resources in young children with mathematical difficulties. Scandinavian Journal of Psychology, 51 , 1–15.
Working memory (WM) ( Baddeley, 1986, 1997 ) is argued to be one of the most important cognitive resources underlying mathematical competence ( Geary, 2004 ). Research has established close links between WM deficits and mathematical difficulties. This study investigated the possible deficits in WM, language and fluid intelligence that seem to characterize 4- to 6-year-old children with poor early mathematical skills before formal mathematics education. Children with early mathematical difficulties showed poor performance in both verbal and visuospatial WM tasks as well as on language tests and a fluid intelligence test indicating a thoroughly lower cognitive base. Poor WM performance was not moderated by fluid intelligence, but the extent of WM deficits was related to language skills. The educational implications are discussed.     

THE DYNAMICS OF THE LAW OF EFFECT: A COMPARISON OF MODELS

Dynamical models based on three steady‐state equations for the law of effect were constructed under the assumption that behavior changes in proportion to the difference between current behavior and the equilibrium implied by current reinforcer rates. A comparison of dynamical models showed that a model based on Navakatikyan's (2007) two‐component functions law‐of‐effect equations performed better than models based on Herrnstein's (1970) and Davison and Hunter's (1976) equations. Navakatikyan's model successfully described the behavioral dynamics in schedules with negative‐slope feedback functions, concurrent variable‐ratio schedules, Vaughan's (1981) melioration experiment, and experiments that arranged equal, and constant‐ratio unequal, local reinforcer rates.     

A Wandering Mind is Not Always a Creative Mind: How Thought Dynamics Explain the Relationship between Mind Wandering and Creativity

A wandering mind is not always a creative mind. Anecdotes about ideas spontaneously entering awareness during walks, showers, and other off-task activities are plenty. The science behind it, however, is still inconclusive. Creativity might result from how thought context—whether thoughts are on-task or off-task—relates to thought dynamics—how thoughts unfold. To explore this, study 1 (n = 85) surveyed creative professionals about a single idea they had earlier in the day. The spontaneity of thoughts positively correlated with self-reported creativity, whereas off-task thoughts or doing something else did not. Study 2 (n = 180) replicated these findings in a student sample during an idea generation task and added that free movement of thoughts also correlates with self-reported originality during idea generation. As indicated by expert ratings, no relationship of thought dynamics and thought context was found with population-level creativity. Herewith, this study suggests that thought dynamics, rather than thought context, explain the often suggested relationship between mind wandering and creativity.     

Spontaneous Interpersonal Coordination in Stepping and Autistic-Like Traits1

Spontaneous behavior, matching that of others, is influenced by various social factors. Mimicking and synchronizing with others' behaviors can facilitate the development of harmonious relationships. This study examined whether the level of autistic-like traits in a non-clinical population influences the spontaneous-behavioral coordination of a dyad's stepping-on-the-spot movements. The strength of spontaneous stepping synchronization was negatively correlated with levels of autistic-like traits when participants faced one another, and no synchronization was observed for individuals with high levels of autistic-like traits. The deficit in spontaneous interpersonal behaviour-matching among individuals with high levels of autistic-like traits is discussed as a potential source of their poor social-communication abilities.     

Moderator Role of Looming Cognitive Style (LCS) in the Relationship Between Attentional Control and Anxiety: Difference Between Shifting and Focusing Dimensions

Attentional control (AC) that is composed of shifting and focusing dimensions had been suggested as a transdiagnostic risk factor, associated with development and maintenance of various psychological disorders. In comparison, Looming Cognitive Style (LCS) had been documented as a trait-based, disorders-specific characteristic that is linked to high levels of subjectively felt anxiety. The present study investigated whether individual differences in LCS moderated the association of shifting and focusing with anxiety. Participants were 402 individuals between ages 18 and 68 recruited through advertisements posted on various forums, e-mail groups, and social media websites. They filled out questionnaires assessing AC, LCS, anxiety, and depression online. Results of the moderation analyses indicated that at high levels of LCS, low attentional shifting ability was associated with more intense anxiety. A similar relationship with LCS was not observed for focusing. In conclusion, for individuals who have high LCS and low shifting ability, content of and distress coming from looming images is experienced in a more intense manner due to difficulty in shifting to another (perhaps less anxiety provoking) content more flexibly. The findings are providing support for the interactive–synergistic perspective, indicating that deficits in shifting capacity may potentiate negative impact of looming cognitions.     

Contextual effects on prejudiced attitudes: When the presence of others leads to more egalitarian responses

In the present paper, we tested the hypothesis that the physical presence of other ingroup members may ameliorate Whites’ spontaneous affective responses toward Blacks. Results of Study 1 demonstrated that IAT-assessed attitudes toward Blacks were indeed less negative when participants were tested in small groups rather than individually. Study 2 shed light on the underlying processes by demonstrating that respondents at the presence of others displayed increased accessibility to egalitarian-related concepts after Black primes, as compared to respondents tested individually. Overall, results point to the wide malleability of spontaneous affective responses and to the possibility that contextual factors, like the presence of other individuals, might automatically activate egalitarians goals. Results are discussed in relation to current models of automatic intergroup bias and preconscious control over it.     

Mathematical psychology: Prospects for the 21st century: A guest editorial

The twenty-first century is certainly in progress by now, but hardly well underway. Therefore, I will take that modest elasticity in concept as a frame for this essay. This frame will serve as background for some of my hopes and gripes about contemporary psychology and mathematical psychology’s place therein. It will also act as platform for earnest, if wistful thoughts about what might have (and perhaps can still) aid us in forwarding our agenda and what I see as some of the promising avenues for the future. I loosely structure the essay into a section about mathematical psychology in the context of psychology at large and then a section devoted to prospects within mathematical psychology proper. The essay can perhaps be considered as in a similar spirit, although differing in content, to previous editorial-like reviews of general or specific aspects of mathematical psychology such as [Estes, W. K. (1975). Some targets for mathematical psychology. Journal of Mathematical Psychology, 12, 263-282; Falmagne, J. C. (2005). Mathematical psychology: A perspective. Journal of Mathematical Psychology, 49, 436-439; Luce, R. D. (1997). Several unresolved conceptual problems of mathematical psychology. Journal of Mathematical Psychology, 41, 79-87] that have appeared in this journal.     

Seeing is not enough: manipulating choice options causes focusing and preference change in multiattribute risky decision‐making

We show that preferences depend on the attributes that can be directly manipulated when people need to integrate multiple sources of information because direct manipulation causes focusing bias. This effect appears even when all relevant information is simultaneously and explicitly presented at the time the decisions are made. Participants decided how much to save, what investment risk to take and observed the future financial consequences in terms of the mean and variability of the expected retirement income. Participants who manipulated only the future income distribution saved more and took less risk. This effect disappears when the risk‐related variables are removed, which indicates that task complexity is a mediator of such focusing effects. A more balanced trade‐off between the choice attributes was selected when all attributes were manipulated. However, when there is a dichotomy between manipulating versus observing choice attributes, then decisions were based mostly on the manipulated attributes. Copyright © 2008 John Wiley & Sons, Ltd.     

创造性倾向对科学问题解决中原型位置效应的影响*

以科学发明创造题目为实验材料,采用“一对一”的实验范式,对创造性问题解决中的创造性倾向与原型位置效应的关系进行了探讨,实验考察了不同创造性倾向个体在创造性问题解决中的原型位置效应,创造性倾向包括想象力、冒险性、好奇性、挑战性四个因素,结果发现:创造性倾向总分、好奇性、挑战性对原型位置效应有影响,而且原型位置效应随着创造性倾向、好奇性、挑战性的降低而显著;想象力、冒险性对原型位置效应的影响不显著。     

数学能力与决策的关系：个体差异的视角

即便在相同的情形中, 每个人所做的决策也有千差万别, 导致决策个体差异的因素之一就是数学能力。文章综述了算术能力、数量表征、概率推理能力以及数学认知启发式对各种决策的影响。目前这方面的研究或者采用相关范式将数学能力作为决策的外部关联因素, 或者采用成分范式确定决策过程所需要的特定数学认知成分; 观点上的主要争论在于是一般认知能力还是数学能力在预测决策表现, 以及数学能力是否总是对决策有积极作用; 此外, 双系统模型和模糊痕迹理论有望为决策的个体差异提供理论解释。今后研究应该澄清上述争论, 确定合适的研究范式和结果解释框架, 并探讨更多提高决策能力的措施。