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Macchi et al.: Letting people touch it changed nothing; drawing it as parts raised solving by 33 points — Fukai Reads
A peer-reviewed paper by Laura Macchi and colleagues at the University of Milano-Bicocca (Journal of Intelligence, 9 May 2026) testing the received wisdom that handling a problem's materials makes insight more likely. Asked to build four equilateral triangles from six pencils, participants given the real pencils went from 27.3% to 32.6% — no significant difference. But swapping a matchstick arithmetic puzzle for a photograph of real matchsticks lifted solving from 46.7% to 79.3%, with nothing to touch. What worked was not the hand, but the picture saying "I am made of parts."
McCaughey et al.: People Change How Much Information They Buy Only When They Are Told the Price Changed — Fukai Reads
An open-access, peer-reviewed paper by Linda McCaughey and two co-authors in Judgment and Decision Making. Across five experiments and 755 analyzed participants in a task where every observation costs money, people did change how much information they bought when the price changed — but almost entirely through planning ahead, not through what they experienced while playing. A direct hit for anyone pricing hints or scouting.
Hu et al.: We Judge Others' Satisfaction Without Counting Their Options — Fukai Reads
A peer-reviewed paper by Beidi Hu, Alice Moon and Eric VanEpps in Psychological Science (January 2026). Across six preregistered experiments with 10,092 participants, people factored choice set size into their own satisfaction but barely factored it into predictions of someone else's. Three things shrink the neglect: showing the different set sizes side by side, asking for a ranking, and restating the number of options. It bears directly on how we read playtests and pick rates.
Lu et al.：产生心流的是「难度」还是「投入的努力」？——Fukai 解读
Hairong Lu 等人关于心流与心理努力的同行评审论文(Psychological Research, 2025)。在视觉辨别任务中分别操纵「难度」与「感觉能解开的把握」后发现，难度操纵的效应很强(ηp²=0.64)，而期望操纵只在试次层面呈现出微弱效应(d=0.04)；心流随难度呈倒 U 形的结果处于临界值(p=0.053)，P300 则与心流无关。这是一项 N=37 的探索性研究。
Jeong 等：同一问题，换一种答题方式，难度也会不同——Fukai 解读
由 Harim Jeong 等人撰写的关于认知负荷与交互设计的论文（发表于 JMIR Serious Games，已通过同行评审）。在平板电脑上的斯特鲁普任务中，保持刺激不变，仅将答题方式从文字标签改为色块，127名6至12岁儿童的正确率从0.86提升至0.91，反应时间缩短了85.4毫秒。前额叶脑指标未出现显著差异。
