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首页> 外文期刊>The European Journal of Neuroscience >Temporal regularity facilitates higher-order sensory predictions in fast auditory sequences
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Temporal regularity facilitates higher-order sensory predictions in fast auditory sequences

机译：时间规律性有助于快速听觉序列中的高级感官预测

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摘要

Does temporal regularity facilitate prediction in audition? To test this, we recorded human event-related potentials to frequent standard tones and infrequent pitch deviant tones, pre-attentively delivered within isochronous and anisochronous (20% onset jitter) rapid sequences. Deviant tones were repeated, either with high or low probability. Standard tone repetition sets a first-order prediction, which is violated by deviant tone onset, leading to a first-order prediction error response (Mismatch Negativity). The response to highly probable deviant repetitions is, however, attenuated relative to less probable repetitions, reflecting the formation of higher-order sensory predictions. Results show that temporal regularity is required for higher-order predictions, but does not modulate first-order prediction error responses. Inverse solution analyses (Variable Resolution Electrical Tomography; VARETA) localized the error response attenuation to posterior regions of the left superior temporal gyrus. In a control experiment with a slower stimulus rate, we found no evidence for higher-order predictions, and again no effect of temporal information on first-order prediction error. We conclude that: (i) temporal regularity facilitates the establishing of higher-order sensory predictions, i.e. 'knowing what next', in fast auditory sequences; (ii) first-order prediction error relies predominantly on stimulus feature mismatch, reflecting the adaptive fit of fast deviance detection processes.
机译：时间规律性有助于听觉预测吗？为了测试这一点，我们将与人类事件相关的电位记录为频繁的标准音调和不频繁的音调偏差音调，这些音调是在同步和不同步（20％起跳抖动）快速序列中预先关注地传递的。重复偏离音调的可能性很高或很小。标准音调重复设置一阶预测，这会因异常音调发作而违背，从而导致一阶预测错误响应（不匹配负性）。但是，相对于不太可能的重复，对高度可能的越轨重复的响应会减弱，反映出更高阶的感官预测的形成。结果表明，高阶预测需要时间规律性，但不会调节一阶预测误差响应。逆解分析（可变分辨率电子断层扫描; VARETA）将误差响应衰减定位在左侧颞上回的后部区域。在刺激速度较慢的对照实验中，我们没有发现进行高阶预测的证据，也没有发现时间信息对一阶预测误差的影响。我们得出以下结论：（i）时间规律性有助于在快速听觉序列中建立更高阶的感官预测，即“知道下一步做什么”; （ii）一阶预测误差主要取决于刺激特征失配，反映了快速偏差检测过程的自适应拟合。

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