cognition   11638

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How a CogSci undergrad invented PageRank three years before Google — Bradley C. Love
Three years prior in 1995, while an undergrad in Brown’s Cognitive and Linguistic Sciences program, I published an identical algorithm to PageRank, so I guess it would be more correct to say that Brin and Page published an algorithm identical to the Love and Sloman centrality algorithm
pagerank  networks  centrality  cognition 
yesterday by yorksranter
This Is the Most Important Fallacy You’ve Never Heard Of
"In chess, if I lose a game, it’s pretty certain that I made a bad decision somewhere and I can go look for it. That’s a totally reasonable strategy. But it is a very unreasonable strategy in poker. If I lose a hand, I may have played the hand literally perfectly and still lost because there’s this luck element to it. The problem is that we’re all resulters at heart."
reasoning  rationality  decisionmaking  cognition  psychology 
4 days ago by debrouwere
Ten-month-old infants infer the value of goals from the costs of actions | Science
Infants understand that people pursue goals, but how do they learn which goals people prefer? We tested whether infants solve this problem by inverting a mental model of action planning, trading off the costs of acting against the rewards actions bring. After seeing an agent attain two goals equally often at varying costs, infants expected the agent to prefer the goal it attained through costlier actions. These expectations held across three experiments that conveyed cost through different physical path features (height, width, and incline angle), suggesting that an abstract variable—such as “force,” “work,” or “effort”—supported infants’ inferences. We modeled infants’ expectations as Bayesian inferences over utility-theoretic calculations, providing a bridge to recent quantitative accounts of action understanding in older children and adults.
bayesian  cognition  models_of_behavior  cognitive_science  joshua.tenenbaum 
13 days ago by rvenkat
The Complete Guide to Intermittent Fasting for Cognitive Benefits & Beyond
"This study discusses how human (and non-human) studies show that IER increases synaptic plasticity (marker of learning and memory), enhances performance on memory tests in the elderly, leads to the growth of new neurons, decreases risk for neurodegenerative diseases."
fasting  cognition  bdnf  hunters 
19 days ago by jaypcross

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