Old plus new: The interplay of regularly extraction and auditory object formation

拟议的项目将研究将听觉场景分解为单一对象，如电影中的语音和背景音乐。不同的声源表现出不同的声音发射模式，同时发出的声音中产生的规律模式可能是来源区分的线索。因此，有人认为，听觉系统中的预注意规律性提取支持对象的形成。这一假设将首次在拟议的项目中得到检验。在这种新的方法中，将结合先前关于规则提取和听觉对象形成的发现来测试两者之间的函数关系。将利用健康成人参与者的行为反应和事件相关电位(ERPs)和新生儿的ERPs进行六项实验。主要目标是揭示规律性提取有助于客体形成的条件，评估基于规则性的客体形成与其他分组原则(如格式塔规则和瞬时和谐性)的相互作用，并确定这些机制中的哪些在出生时就已经存在。该项目将促进我们对自然情况下听觉感知的理解，并将与助听器和通信设备等应用相关。

The proposed project will investigate the decomposition of auditory scenes into single objects, such as speech and background music in a movie. Different acoustic sources show different sound emission patterns, and the resulting regular patterns within concurrent sounds are possible cues for source distinction. Accordingly, it has been suggested that object formation is supported by pre-attentive regularity extraction in the auditory system. This hypothesis will, for the first time, be tested in the proposed project. In this novel approach, previous findings on regularity extraction and in auditory object formation will be combined to test functional relations between the two. Six experiments will be conducted using behavioural responses and event-related potentials (ERPs) in healthy adult participants and ERPs in newborn infants. Key objectives are to reveal the conditions under which regularity extraction contributes to object formation, to evaluate the interaction of regularity-based object formation with other grouping principles (such as Gestalt rules and instantaneous harmonicity), and to determine which of these mechanisms are already present at birth. The project will advance our understanding of auditory perception in natural situations, and will be relevant for applications such as hearing aids and communication devices.