听觉流产生于快兴奋和慢延迟抑制
Auditory streaming emerges from fast excitation and slow delayed inhibition
摘要：
在听觉流范例中，纯音的交替序列可以被感知为单个奔马节奏（整合）或两个具有分离的低音和高音的序列（分离）。虽然研究了几十年，但这种声音感知分组的神经机制仍然是一个谜。为了确定一个合理的最小神经回路，捕捉这种现象，我们提出了一个发射率模型与两个周期性强迫神经种群耦合快速直接兴奋和缓慢延迟抑制。通过分析模型中的非光滑，慢-快制度，我们分析证明了存在一个丰富的剧目的动力学状态和参数依赖的过渡。我们施加合理的参数限制，并将所有状态与感知解释联系起来。与每个受试者相关的状态所占据的刺激参数区域与行为实验中发现的相匹配。我们的模型表明，缓慢的抑制掩盖隔离（前掩蔽）期间的后续音调的感知，而快速的兴奋，使两个音调之间的大音高差异的整合。
英文摘要：
In the auditory streaming paradigm alternating sequences of pure tones can be perceived as a single galloping rhythm (integration) or as two sequences with separated low and high tones (segregation). Although studied for decades, the neural mechanisms underlining this perceptual grouping of sound remains a mystery. With the aim of identifying a plausible minimal neural circuit that captures this phenomenon, we propose a firing rate model with two periodically forced neural populations coupled by fast direct excitation and slow delayed inhibition. By analyzing the model in a non-smooth, slow-fast regime we analytically prove the existence of a rich repertoire of dynamical states and of their parameter dependent transitions. We impose plausible parameter restrictions and link all states with perceptual interpretations. Regions of stimulus parameters occupied by states linked with each percept matches those found in behavioral experiments. Our model suggests that slow inhibition masks the perception of subsequent tones during segregation (forward masking), while fast excitation enables integration for large pitch differences between the two tones.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
