为迎接4556银河国际线路测试40周年校庆，4556银河国际线路测试持续开展一系列学术讲座。2023年6月2日下午，学院邀请西南财经大学教授周恕弘作专题学术讲座。本次讲座由4556银河国际线路测试李景景副教授主持，讲座主题为“Attention Theory, Soft and Hard”。

本次讲座重点介绍了周恕弘教授近期的研究成果，主要内容为：The human brain, consuming a mere 20 watts, is miserly in minimizing energy expenditure constantly and unconsciously, giving rise to a volatile and context-sensitive attentional process. This talk builds on both "soft" modeling based on revealed choice and "hard" modeling which seeks additionally biological accuracy. In the soft attention theory (SAT) model, the generally varying utility of a lottery emerges from potentially volatile decision weights. In binary choice, SAT always exhibits EU-conforming behavior in the correlated Allais common-consequence problem if and only if attention is symmetric, which coincides formally with Regret Theory and Salience Theory. We further offer a hard attention theory (HAT) model through a quartet of neurotransmitters--dopamine (DA), serotonin (5HT), acetylcholine (ACh), and norepinephrine (NE). Building on the application of DA and 5HT tones to model the loss-gain differentiation in risk attitude (Zhong et al., 2009), we hypothesize that ACh and NE tones modulate respectively the top-down and bottom-up components of the attention function in SAT. This yields predictions which are tested in a preregistered placebo-controlled RCT experiment using nicotine (ACh agonist) and Ventolin (NE agonist) to manipulate top-down attention and bottom-up salience. Preliminary findings will be discussed。

本次讲座结束后，周恕弘教授耐心解答学院师生的问题，并与学院师生进行了深入地交流，现场学术交流气氛踊跃。

主讲嘉宾介绍：

Chew Soo Hong（周恕弘）is Chief Professor (首席教授) at the Southwestern University of Finance and Economics, where he directs its China Center for Behavioral Economics and Finance. Chew is among the pioneers of axiomatic non-expected utility models and has been conducting research in the biology of decision-making. He is a fellow of the Econometric Society, which awarded him the Leonard J. Savage thesis prize, and of the Society for the Advancement of Economic Theory. Chew is an Emeritus Professor (终身荣休教授) at NUS and has previously taught at HKUST, UC Irvine, Johns Hopkins, and the University of Arizona. He has published in well-regarded journals in economics such as Econometrica, JPE, Review of Economic Studies, Journal of Economic Theory, Journal of the European Economic Association, and Journal of Economic Dynamics and Control, as well as more biologyoriented ones including Neuron, PNAS, BioMedicine & Neuroscience, and Biobehavioral Reviews, Neuroimage, PLOS ONE, and PRSB.。