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141.
Judith Avrahami Ayala Ezer Werner Güth Nour Kardosh Yaakov Kareev Uri Zak 《决策行为杂志》2020,33(2):121-138
Agents seeking an opportunity for profit often have to compete with others who pursue the same opportunity. When having to choose between a number of opportunities differing in their value and if individuals differ in their chances of outperforming others, the choice can be cognitively and emotionally demanding. We explore choice between opportunities using stylized Lions–Foxes games. In such a game, each of three players, with different odds of beating others, has to choose one of two contests that offer different rewards. After game theoretically analyzing the games, which we have experimentally employed, we report four experiments that vary in choice elicitation (repeated play or strategy method), in players' matching (random strangers or partners) and in rewards. Regarding contest choices, we found the choice of the higher value (and seemingly more prestigious) contest to be positively related to winning odds, contrary to what four out of the five (mixed, partially mixed, or pure) equilibria predict. Participants started out rather optimistic, with a large majority choosing the higher value option, but with experience, they approached the only viable of two pure strategy equilibria. Still, mixing continued via reacting to past play and outcome, apparently balancing dissatisfaction from choosing either contest. 相似文献
142.
Participants were required to switch among randomly ordered tasks, and instructional cues were used to indicate which task to execute. In Experiments 1 and 2, the participants indicated their readiness for the task switch before they received the target stimulus; thus, each trial was associated with two primary dependent measures: (1) readiness time and (2) target reaction time. Slow readiness responses and instructions emphasizing high readiness were paradoxically accompanied by slow target reaction time. Moreover, the effect of task switching on readiness time was an order of magnitude smaller then the (objectively estimated) duration required for task preparation (Experiment 3). The results strongly suggest that participants have little conscious awareness of their preparedness and challenge commonly accepted assumptions concerning the role of consciousness in cognitive control. 相似文献
143.
Does each hemisphere have its own system for monitoring and responding to errors? Three experiments investigate the effect of presenting lateralized accuracy feedback in a bilateral lexical decision task. We presented feedback after each trial in either the left visual field (LVF) or right visual field (RVF). In Experiment 1 the feedback stimuli were faces smiling or frowning, in Experiment 2 we used colored squares, and Experiment 3 tested the effect of verbal feedback. Negative feedback presented in the LVF tended to improve performance on the following trial, while the same negative feedback in the RVF tended to disrupt performance on the following trial. This result was strongest with the faces as feedback, was less pronounced with colored squares, and disappeared with verbal feedback. The results are interpreted as suggesting a right hemisphere superiority for error monitoring that depends on the mode of feedback. 相似文献
144.
Infant-directed (ID) speech produced by fathers who varied in their number of self-reported symptoms of depressed was analyzed for differences its ability to promote infant voice-face associative learning. Infants of fathers with elevated scores on the Beck Depression Inventory-II (BDI-II) showed significantly poorer learning than did infants of fathers with non-elevated BDI-II scores when their fathers' ID speech served as a conditioned stimulus for a face reinforcer in a conditioned-attention paradigm. Fathers with elevated BDI-II scores produced ID speech with marginally significantly lower F0 variability than fathers with non-elevated BDI-II scores. However, F0-related cues were uncorrelated with infant learning. Overall, fathers' ID speech contained significantly less F0 modulation than did mothers' ID speech. These findings show that paternal depression, like maternal depression, adversely affects infant learning in a conditioned-attention paradigm. 相似文献
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147.
Maria Lev Sharon Gilaie‐Dotan Dana Gotthilf‐Nezri Oren Yehezkel Joseph L. Brooks Anat Perry Shlomo Bentin Yoram Bonneh Uri Polat 《Developmental science》2015,18(1):50-64
Long‐term deprivation of normal visual inputs can cause perceptual impairments at various levels of visual function, from basic visual acuity deficits, through mid‐level deficits such as contour integration and motion coherence, to high‐level face and object agnosia. Yet it is unclear whether training during adulthood, at a post‐developmental stage of the adult visual system, can overcome such developmental impairments. Here, we visually trained LG, a developmental object and face agnosic individual. Prior to training, at the age of 20, LG's basic and mid‐level visual functions such as visual acuity, crowding effects, and contour integration were underdeveloped relative to normal adult vision, corresponding to or poorer than those of 5–6 year olds (Gilaie‐Dotan, Perry, Bonneh, Malach & Bentin, 2009). Intensive visual training, based on lateral interactions, was applied for a period of 9 months. LG's directly trained but also untrained visual functions such as visual acuity, crowding, binocular stereopsis and also mid‐level contour integration improved significantly and reached near‐age‐level performance, with long‐term (over 4 years) persistence. Moreover, mid‐level functions that were tested post‐training were found to be normal in LG. Some possible subtle improvement was observed in LG's higher‐order visual functions such as object recognition and part integration, while LG's face perception skills have not improved thus far. These results suggest that corrective training at a post‐developmental stage, even in the adult visual system, can prove effective, and its enduring effects are the basis for a revival of a developmental cascade that can lead to reduced perceptual impairments. 相似文献
148.
Lawrence Kaplan 《Journal of Modern Jewish Studies》2015,14(1):89-108
This paper will discuss three new methods of teaching Talmud that Israeli Religious Zionist Yeshivas have adopted over the past two decades against the backdrop of the hitherto and perhaps still dominant approach to teaching Talmud in these Yeshivas, namely, the classical conceptual, ahistorical, highly abstract “Brisker” approach: (1) a modified Brisker approach; (2) the “Torat Eretz Yisrael,” “the Torah of the Land of Israel” approach; and (3) what I would call the “shiluv” approach, a term that implies forming a new and harmonious whole. What these three approaches have in common is the desire to retain the conceptual analysis of the Brisker approach, but to abandon its strict formalism and combine it with the search for religious meaning and significance. However, while the first two approaches in their search for the religious significance of the text generally eschew the use of the critical methodologies employed by academic Talmudic scholarship, the third approach embraces the use of those methodologies and seeks to integrate them into the world of traditional Talmud study. I will focus on the theological challenges raised by this attempted integration and on how the exponents of the “shiluv” approach have sought to deal with them. 相似文献
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150.
Kaplan JS 《Developmental psychology》2012,48(5):1292-1298
There has been a vigorous debate for decades concerning the heritability of intelligence. In recent years, the debate has been focused on whether the components of IQ variability change with age and on separating environmental effects into shared and unshared components. Citing evidence from adoption studies, studies comparing identical and fraternal twins, and studies of identical twins raised apart, some prominent psychologists have concluded that the shared environment has a significant effect on the intelligence of children but little or no effect on the intelligence of adults. In this article, the evidence from such studies is reviewed. The article reaches the conclusion that while there is some evidence from adoption studies supporting the claim that shared environment has little or no effect on adult intelligence, that evidence is inconclusive and is inconsistent with evidence from twin studies and from studies of identical twins reared apart. (PsycINFO Database Record (c) 2012 APA, all rights reserved). 相似文献