Prospective memory and ageing paradox with event-based tasks: A study of young,young-old,and old-old participants

Research on ageing and prospective memory—remembering to do something in the future—has resulted in paradoxical findings, whereby older adults are often impaired in the laboratory but perform significantly better than younger adults in naturalistic settings. Nevertheless, there are very few studies that have examined prospective memory both in and outside the laboratory using the same sample of young and old participants. Moreover, most naturalistic studies have used time-based tasks, and it is unclear whether the prospective memory and ageing paradox extends to event-based tasks. In this study, 72 young (18–30 years), 79 young-old (61–70 years), and 72 old-old (71–80 years) participants completed several event-based tasks in and outside the laboratory. Results showed that the ageing paradox does exist for event-based tasks but manifests itself differently from that in time-based tasks. Thus, younger adults outperformed old-old participants in two laboratory event-based tasks, but there were no age effects for a naturalistic task completed at home (remembering to write the date and time in the upper left corner of a questionnaire). The young and old-old also did not differ in remembering to retrieve a wristwatch from a pocket at the end of the laboratory session. This indicates that the paradox may be due to differences in ongoing task demands in the lab and everyday life, rather than the location per se. The findings call for a concentrated effort towards a theory of cognitive ageing that identifies the variables that do, or do not, account for this paradox.     

Atheism and Dialetheism; or, ‘Why I Am Not a (Paraconsistent) Christian’

In ‘Theism and Dialetheism’, Cotnoir explores the idea that dialetheism (true contradictions) can help with some puzzles about omnipotence in theology. In this note, I delineate another aspect of this project. Dialetheism cannot help with one big puzzle about another classic ‘omni’ property, omnibenevolence—the famous problem of evil. For someone (including a dialetheist) who thinks that the existence of evil is a knock-down argument against traditional theism, it is a knock-down argument against dialetheic theism, too.     

Natural Deduction and Curry's Paradox

Curry's paradox, sometimes described as a general version of the better known Russell's paradox, has intrigued logicians for some time. This paper examines the paradox in a natural deduction setting and critically examines some proposed restrictions to the logic by Fitch and Prawitz. We then offer a tentative counterexample to a conjecture by Tennant proposing a criterion for what is to count as a genuine paradox.     

矛盾视角下调节焦点在领导力领域的应用

根据调节焦点理论, 个体在追求目标和选择行动策略的过程中存在两种调节焦点：促进型调节焦点的个体以利益最大化为目标, 倾向用“接近式”的方式达成目标; 防御型调节焦点的个体以损失最小化为目标, 倾向用“避免式”的方式达成目标。近年来, 调节焦点理论在领导力领域的研究中得到了广泛应用, 但关于两种调节焦点之间的关系及两者共同作用的研究却十分稀少。在回顾调节焦点在领导力领域研究的应用现状的基础上, 本文指出了矛盾视角的必要性和可行性, 并基于矛盾理论, 提出了未来研究的发展方向。