通讯信号在自然环境中传播，受各种干扰而导致信号受损。非模补整（Amodal completion）是指中枢神经能够自动修复残缺信号的感知信息，以完成对信号的准确认知。多模态整合（Multimodal integration）可通过信号间的互补，促进信号修复。本项目旨在通过非模补整探讨蛙类视觉与听觉信号的相互作用机理。多数蛙类在繁殖季节以鸣声通讯，鸣囊又可形成视觉刺激。视/听整合已成为一个热点领域，在蛙类的研究却很少。我们认为：当视觉和听觉信号具有时空互补性时，即视觉与听觉信号来自同一空间位置而缺失的部分在时间上错开，变单一模态（听）下不可修复的残缺信号为多模态（视/听）下可修复信号，且其结果可以通过行为呈现。这一过程对于在强噪声（池塘）和极弱光（夜间）背景下的通讯尤为重要，是动物适应环境的神经行为机制之一。我们的研究将揭示动物对残缺语音信号的认知机理和多模态整合的生态适应意义。

Signals for communication in natural habitats are disturbed and masked during their transmitting, resulted in incompletion of signaling. Amodal completion is a repairing process on which the central nervous system can recognize fragmentary signals. Multimodal integration can prompt this cognitive process through signal compensation between modals. The present project will investigate the mechanisms for amodal completion based on the integration of visual and auditory inputs. Most frogs communicate vocally during the breeding seasons. The sac expands and shrinks repeatedly in production of calls, which become a unique model to study signal integrations. We predict that the central nervous system can easily complete a fragmentary multimodal signal if two modals (e.g. auditory and visual signaling, occurred in the situation that some auditory disable persons can communicate through hearing and lip-reading) are compensation in the temporal dimension while overlapping in the spatial dimension. This process can be testable, reflected with responsive behaviors. The capability of amodal completion is very important for animals in adaptation to communication under noisy and/or weak lights. Our study will illuminate behavioral mechanisms of multimodal integration in amodal completion and ecological significances.