摘要
模糊决策是特殊、复杂的风险决策,还是一种独立的决策类型,是当前认知神经科学争论的热点问题。一系列的f MRI研究分别得出了不同结论,但大多数证据支持模糊决策和风险决策之间存在分离,模糊决策有其独特的决策机制;模糊决策的认知神经机制也是一个亟待解决的问题。因此本研究拟应用事件相关电位技术、生物反馈技术和基因技术,采用IGT和GDT任务范式,通过网络成瘾人群和正常人群的对比研究,去探索模糊决策和风险决策之间的分离;应用事件相关电位技术和磁共振技术,采用IGT范式和选瓶任务范式,研究模糊决策的认知神经机制;并从临床角度进一步验证上述结果。该项目的开展,有助于拓广模糊决策的研究领域和视野,对理解人类在模糊情境下的决策机制以及模糊决策和风险决策之间的关系,具有重要的理论意义;对临床上成瘾人群、脑损伤患者的认知诊断和治疗以及现实中企业和个人的决策,具有重要的参考价值。
So far, numerous studies have focused on the exploration of cognitive and neural mechanism of risk decision-making, but less attention have been paid to that of decision-making under ambiguity. In reality, however, the circumstances of decision-making what we faced are usually ambiguity. Moreover, it still does not reach an agreement on whether decision-making under ambiguity is a kind of special and complicated risk decision-making or a kind of independent decision-making. Hence, it is necessary to reveal the underlying cognitive and neural mechanisms of decision-making under ambiguity. To solve this problem, firstly, using modified IGT task and GDT task, and applying ERP, biofeedback and genetic measures, we will examine the dissociation of decision-making under ambiguity and risk decision-making among Interact addicts and normal populations; Secondly, by modified IGT task and urn drawing task, and employing ERP and fMRI techniques, we plan to investigate the cognitive and neural mechanism of decision-making under ambiguity; Finally, we will validate the above results from a developmental and clinical perspective. Overall, the findings will help to expand research areas of decision-making under ambiguity, and will provide important theoretical guidance to understand human beings＇ decision-making mechanism under ambiguous conditions and clarify the relationship between the decision-making under ambiguity and risk decision- making. At last, the findings have great theoretical and practical values on guiding cognitive diagnosis and therapy for clinical populations such as the addicts and the brain-impaired patients, and on giving insights to the enterprises and the individuals in real decision-making situations.
出处
《心理科学进展》
CSSCI
CSCD
北大核心
2015年第3期364-374,共11页
Advances in Psychological Science
基金
国家自然科学基金项目(31360234)
江西省社会科学研究"十二五"规划项目(13JY09)
关键词
模糊决策
风险决策
认知神经科学
爱荷华赌博任务
元分析
decision-making under ambiguity
risk decision-making
cognitive neuroscience
Iowa GamblingTask
meta analysis
