Perceptual inequality between two neighboring time intervals defined by sound markers: correspondence between neurophysiological and psychological data.
Perceptual inequality between two neighboring time intervals defined by sound markers: correspondence between neurophysiological and psychological data.
复制标题
DOI：
10.3389/fpsyg.2014.00937
复制
发表时间：
2014
影响因子：
3.8
通讯作者：
Tobimatsu S
中科院分区：
文献类型：
--
作者：
Mitsudo T;Nakajima Y;Takeichi H;Tobimatsu S
使用称为听觉时间同化的感知现象来分析与人类时间估计过程相关的大脑活动。在典型的刺激条件下，两个相邻的时间间隔（按此顺序为 T1 和 T2）被认为是相等的，即使这些时间间隔的物理长度相当不同。我们之前的事件相关电位（ERP）研究表明，T2后右额叶区域（F8电极周围）出现缓慢负成分（SNCt），这与T1和T2相等/不相等的判断相关。在本研究中，我们进行了两次 ERP 实验，以进一步证实 SNCt 的稳健性。刺激模式由两个相邻的时间间隔组成，以三个连续的突发音为标志。 13名参与者在第一节中只听模式，并在下节中判断T1和T2的相等/不相等。行为数据显示出典型的时间同化。 ERP 数据显示，出现了与时间判断相关的三个组成部分（N1、偶然负变异、CNV 和 SNCt）。 N1出现在中心区域，其峰值潜伏期对应于每个标记物出现的物理时间。 CNV 成分在 T2 呈现期间出现在额叶区域，并且其幅度作为 T1 的函数而增加。 SNCt 在 T1 和 T2 呈现后出现在右额叶区域，并且对于导致知觉不平等的时间模式，其幅度较大。 SNCt 还与相同刺激模式的感知平等/不平等相关，并持续到 T2 结束后约 400 毫秒。这些结果表明，SNCt 可以是平等/不平等判断的签名，它源自两个相邻时间间隔的比较。
Brain activity related to time estimation processes in humans was analyzed using a perceptual phenomenon called auditory temporal assimilation. In a typical stimulus condition, two neighboring time intervals (T1 and T2 in this order) are perceived as equal even when the physical lengths of these time intervals are considerably different. Our previous event-related potential (ERP) study demonstrated that a slow negative component (SNCt) appears in the right-frontal brain area (around the F8 electrode) after T2, which is associated with judgment of the equality/inequality of T1 and T2. In the present study, we conducted two ERP experiments to further confirm the robustness of the SNCt. The stimulus patterns consisted of two neighboring time intervals marked by three successive tone bursts. Thirteen participants only listened to the patterns in the first session, and judged the equality/inequality of T1 and T2 in the next session. Behavioral data showed typical temporal assimilation. The ERP data revealed that three components (N1; contingent negative variation, CNV; and SNCt) emerged related to the temporal judgment. The N1 appeared in the central area, and its peak latencies corresponded to the physical timing of each marker onset. The CNV component appeared in the frontal area during T2 presentation, and its amplitude increased as a function of T1. The SNCt appeared in the right-frontal area after the presentation of T1 and T2, and its magnitude was larger for the temporal patterns causing perceptual inequality. The SNCt was also correlated with the perceptual equality/inequality of the same stimulus pattern, and continued up to about 400 ms after the end of T2. These results suggest that the SNCt can be a signature of equality/inequality judgment, which derives from the comparison of the two neighboring time intervals.
登录
查看更多内容
影响因子：
2.9
作者：
Nakajima Y;Hasuo E;Yamashita M;Haraguchi Y
通讯作者：
Haraguchi Y
影响因子：
2.6
作者：
Paul, Isabelle;Wearden, John;Rebai, Mohamed
通讯作者：
Rebai, Mohamed
影响因子：
5.3
作者：
Kononowicz, Tadeusz W.;van Rijn, Hedderik
通讯作者：
van Rijn, Hedderik
影响因子：
25
作者：
Rao, SM;Mayer, AR;Harrington, DL
通讯作者：
Harrington, DL
影响因子：
1.8
作者：
Le Dantec, Christophe;Gontier, Emilie;Rebai, Mohamed
通讯作者：
Rebai, Mohamed