Long-term implicit memory for sequential auditory patterns in humans
Long-term implicit memory for sequential auditory patterns in humans
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DOI：
10.1101/2020.02.14.949404
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发表时间：
2020-02
期刊：
影响因子：
7.7
通讯作者：
Roberta Bianco;Peter M C Harrison;Mingyue Hu;Cora Bolger;Samantha Picken;M. Pearce;M. Chait
中科院分区：
文献类型：
--
作者：
Roberta Bianco;Peter M C Harrison;Mingyue Hu;Cora Bolger;Samantha Picken;M. Pearce;M. Chait
为了理解听觉场景，听众跟踪并保留随着时间推移而展开的感官输入的统计数据。我们结合行为操纵和建模来研究序列统计如何被编码到长期记忆中，并用于解释传入的感觉信号。在一系列实验中，参与者发现了新的快速声音序列中出现的规则重复模式。他们不知道的是，一些规则的模式稀疏地（每隔203分钟）重新出现。重复序列显示出快速增长的检测时间优势，新的序列。这种效应是隐性的，对干扰具有鲁棒性，并持续长达7周。人类的表现是由记忆约束的概率模型，其中序列被存储为n元，并受到记忆衰退。结果表明，类似的心理机制可能是在不同的时间尺度上的记忆形成和灵活提取的整合过程的基础。
To understand auditory scenes, listeners track and retain the statistics of sensory inputs as they unfold over time. We combined behavioural manipulation and modelling to investigate how sequence statistics are encoded into long-term memory and used to interpret incoming sensory signals. In a series of experiments, participants detected the emergence of regularly repeating patterns in novel rapid sound sequences. Unbeknownst to them, a few regular patterns reoccurred sparsely (every ∼3 minutes). Reoccurring sequences showed a rapidly growing detection time advantage over novel sequences. This effect was implicit, robust to interference, and persisted up to 7 weeks. Human performance was reproduced by a memory-constrained probabilistic model, where sequences are stored as n-grams and are subject to memory decay. Results suggest that similar psychological mechanisms may underlie integration processes over different-time scales in memory formation and flexible retrieval.