BIS- and BAS-activation and study outcomes: A mediation study

Building on Gray’s original Reinforcement Sensitivity Theory, we examined how individual differences in students’ activation of the behavioral inhibition (BIS) and the behavioral approach (BAS) systems relate to overcommitment to one’s studies and study engagement, and how these two forms of heavy study investment relate to three academically relevant outcomes. Using data from 565 Dutch university students, structural equation modeling showed that BIS-activation was positively associated with overcommitment to one’s studies, which in turn was positively related to exhaustion and the intention to quit one’s studies. BAS-activation was positively associated with study engagement, which in turn was negatively related to exhaustion and the intention to quit, and positively related to academic performance. Bootstrapping techniques revealed a mediating role of the two forms of heavy study investment. Apparently, BIS- and BAS-activation are associated with heavy study behavior, student well-being, and study outcomes.     

基于价值的议程对学习时间分配影响的眼动研究

通过对比不同梯度下, 分值激发的议程与习惯性反应作用一致、不一致条件中, 优先选择项目和学习时间的差异, 考察基于价值的议程对学习时间分配的影响及其动态过程。结果发现：(1)等分值条件下, 汉语为母语被试存在从左到右的习惯性反应。(2)分值梯度对基于议程的学习时间分配的有效性具有调节作用。小分值梯度(1分、5分)激发的议程能够克服习惯性反应对学习时间分配的影响, 但不能使被试建立起优先学习高价值项目的议程; 大分值梯度(1分、10分)能够克服习惯性反应对学习时间分配影响, 且能够使被试建立起优先学习高价值项目的议程。(3)基于议程调节的学习时间分配在时程和阶段上具有动态性和情境特异性。     

Factors that enhance academic learning and study behaviours: A qualitative study

This exploratory study examined students’ conceptions of factors that enhance the use and application of academic learning and study strategies (LSS). A qualitative approach was used to explore the conceptions of 23 first-year university students (female = 14; age range = 18–24 years). Data were collected using unstructured interviews and narrative sketches. Thematic analysis revealed three themes; namely clarity, emotional intelligence, and life circumstances. LSS clarity showed that knowledge of the self as a learner and well-defined educational goals can enhance engagement in the academic study process. Emotional intelligence as LSS referred to the importance of self-management and emotional regulation; while life circumstances in LSS emphasised the impact of real world challenges that affect the learning process. Student development counselling for LSS should consider the extent to which students have a sense of clarity, emotional intelligence, and life orientation important for their education success.     

study of taste perception

Taste stimulus identification was studied in order to more thoroughly examine human taste perception. Ten replicates of an array of 10 taste stimuli—NaCl, KCl, Na glutamate, quinine.HCl, citric acid, sucrose, aspartame, and NaCl-sucrose, acid-sucrose, and quinine-sucrose mixtures—were presented to normal subjects for identification from a list of corresponding stimulus names. Because perceptually similar substances are confused in identification tasks, the result was ataste confusion matrix. Consistency of identification for the 10 stimuli (T ₁₀) and for each stimulus pair (T ₂) was quantified with measures derived from information theory. Forty-two untrained subjects made an average of 57.4% correct identifications. An averageT ₁₀ of 2.25 of the maximum 3.32 bits and an averageT ₂ of 0.84 of a maximum 1.0 bit of information were transmitted. In a second experiment, 40 trained subjects per-formed better than 20 untrained subjects. The results suggested that the identification procedure may best be used to assess taste function following 1–2 training replicates. The patterns of taste confusion indicate that the 10 stimuli resemble one another to varying extents, yet each can be considered perceptually unique.     

A study of hyperlexia

Twelve children with early intense reading and superior word recognition skills coupled with disordered language and cognitive behavior are described. Cognitive, linguistic, and reading measures evidenced a generalized cognitive deficit in forming superordinate schemata which was not specific to visual or auditory modalities. Positive family histories for reading problems were present for 11 of the 12 children, suggesting a relationship between hyperlexia and dyslexia.     

Psychophysical study of numbers

Summary This paper develops three theoretical models to predict the numbers generated by Ss in an experiment described by Baird and Noma, 1975, Exp. II. The models (digit, base, and quarter) are each grounded on different assumptions about the process underlying number generation without the constraints of physical stimuli usually present in psychophysical tasks. Each of the models proved applicable to a restricted subrange of the physical continuum from 1–1000. A combination of models seems necessary to adequately predict number generation.This article is the second in a five-part series. Reprint requests should be sent to John C. Baird.