论文标题
通过先天机制学习空间听力
Learning spatial hearing via innate mechanisms
论文作者
论文摘要
人类和其他动物用于定位声音的声音提示是微妙的,并且在发育过程中和之后发生了变化。这意味着我们需要不断地重新学习或重新校准整个一生的听觉空间图。这通常被认为是“监督”学习过程,其中“老师”(例如,父母或视觉系统)告诉您您是否正确猜到了位置,并且使用此信息来更新地图。但是,并不总是有明显的老师(例如,在婴儿或盲人中)。使用计算模型,我们表明,来自简单的先天电路的近似反馈,例如可以区分左侧的右路(例如听觉方向响应),足以学习准确的全范围空间听觉图。此外,除了有监督的学习外,还可以使用这种机制更牢固地保持自适应神经表示。我们发现几种可能是这种学习基础的神经机制,并假设可能存在多种机制并相互作用。我们得出的结论是,在研究空间听力时,我们不应该假设唯一的学习来源是来自视觉系统或其他监督信号。进一步研究提出的机制可以使我们能够设计更好的康复计划,以加速空间图的重新学习/重新校准。
The acoustic cues used by humans and other animals to localise sounds are subtle, and change during and after development. This means that we need to constantly relearn or recalibrate the auditory spatial map throughout our lifetimes. This is often thought of as a "supervised" learning process where a "teacher" (for example, a parent, or your visual system) tells you whether or not you guessed the location correctly, and you use this information to update your map. However, there is not always an obvious teacher (for example in babies or blind people). Using computational models, we showed that approximate feedback from a simple innate circuit, such as that can distinguish left from right (e.g. the auditory orienting response), is sufficient to learn an accurate full-range spatial auditory map. Moreover, using this mechanism in addition to supervised learning can more robustly maintain the adaptive neural representation. We find several possible neural mechanisms that could underlie this type of learning, and hypothesise that multiple mechanisms may be present and interact with each other. We conclude that when studying spatial hearing, we should not assume that the only source of learning is from the visual system or other supervisory signal. Further study of the proposed mechanisms could allow us to design better rehabilitation programmes to accelerate relearning/recalibration of spatial maps.