Rhythm Violation Enhances Auditory-Evoked Responses to the Extent of Overriding Sensory Adaptation in Passive Listening.
Rhythm Violation Enhances Auditory-Evoked Responses to the Extent of Overriding Sensory Adaptation in Passive Listening.
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DOI：
10.1162/jocn_a_01578
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发表时间：
2020-09
影响因子：
3.2
通讯作者：
Suzuki S
中科院分区：
文献类型：
--
作者：
Menceloglu M;Grabowecky M;Suzuki S
Sensory systems utilize temporal structure in the environment to build expectations about the timing of forthcoming events. We investigated the effects of rhythm-based temporal expectation on auditory responses measured with EEG recorded from the frontocentral sites implicated in auditory processing. By manipulating temporal expectation and the inter-onset interval (IOI) of tones, we examined how neural responses adapted to auditory rhythm and reacted to stimuli that violated the rhythm. Participants passively listened to the tones while watching a silent nature video. In Experiment 1 (N=22), in the long-IOI block, tones were frequently presented (80%) with 1.7-s IOI and infrequently presented (20%) with 1.2-s IOI, generating unexpectedly-early tones that violated temporal expectation. Conversely, in the short-IOI block, tones were frequently presented with 1.2-s IOI and infrequently presented with 1.7-s IOI, generating late tones. We analyzed the tone-evoked N1-P2 amplitude of event-related potentials (ERPs) and inter-trial phase clustering (ITPC) in the theta-alpha band. The results provided evidence of strong delay-dependent adaptation effects (short-term, sensitive to IOI), weak cumulative adaptation effects (long-term, driven by tone repetition over time), and robust temporal-expectation violation effects over and above the adaptation effects. Experiment 2 (N=22) repeated Experiment 1 with shorter IOIs of 1.2s and 0.7s. Overall, we found evidence of strong delay-dependent adaptation effects, weak cumulative adaptation effects (that may most efficiently accumulate at the tone presentation rate of ~1Hz), and robust temporal-expectation violation effects that substantially boost auditory responses to the extent of overriding the delay-dependent adaptation effects likely through mechanisms involved in exogenous attention.
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影响因子：
1.9
作者：
CONDON, CD;WEINBERGER, NM
通讯作者：
WEINBERGER, NM
影响因子：
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作者：
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通讯作者：
Suzuki, Satoru
影响因子：
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作者：
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通讯作者：
SNOWDEN, RJ
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作者：
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作者：
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