Kim Sunae, Sodian Beate, Proust Joëlle
Department of Developmental and Clinical Child Psychology, Institute of Psychology, Eötvös Loránd University, Budapest, Hungary.
Developmental and Educational Psychology, Ludwig-Maximilian University of Munich, Munich, Germany.
Front Psychol. 2020 Mar 27;11:566. doi: 10.3389/fpsyg.2020.00566. eCollection 2020.
Infants register and react to informational uncertainty in the environment. They also form expectations about the probability of future events as well as update the expectation according to changes in the environment. A novel line of research has started to investigate infants' and toddlers' behavior under uncertainty. By combining these research areas, the present research investigated 12- and 24-month-old infants' searching behaviors under varying degree of informational uncertainty. An object was hidden in one of three possible locations and probabilistic information about the hiding location was manipulated across trials. Infants' time delay in search initiation for a hidden object linearly increased across the level of informational uncertainty. Infants' successful searching also varied according to probabilistic information. The findings suggest that infants modulate their behaviors based on probabilistic information. We discuss the possibility that infants' behavioral reaction to the environmental uncertainty constitutes the basis for the development of subjective uncertainty.
婴儿会对环境中的信息不确定性进行登记并做出反应。他们还会对未来事件的概率形成预期，并根据环境变化更新预期。一系列新的研究开始调查婴幼儿在不确定性情况下的行为。通过结合这些研究领域，本研究调查了12个月和24个月大的婴儿在不同程度信息不确定性下的搜索行为。一个物体被藏在三个可能位置中的一个，并且在不同试验中操纵关于隐藏位置的概率信息。婴儿寻找隐藏物体的起始时间延迟随着信息不确定性水平的增加而线性增加。婴儿的成功搜索也因概率信息而有所不同。研究结果表明，婴儿会根据概率信息调整自己的行为。我们讨论了婴儿对环境不确定性的行为反应构成主观不确定性发展基础的可能性。
