Early, but not late visual distractors affect movement synchronization to a temporal-spatial visual cue.
Early, but not late visual distractors affect movement synchronization to a temporal-spatial visual cue.
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DOI：
10.3389/fpsyg.2015.00866
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发表时间：
2015
影响因子：
3.8
通讯作者：
Elliott MT
中科院分区：
文献类型：
--
作者：
Booth AJ;Elliott MT
将动作与节奏提示同步的难易程度取决于提示呈现的方式：与离散听觉节奏同步时的计时精度比通过闪光呈现的同等视觉刺激要高得多。然而，如果视觉提示呈现空间和时间信息（例如，遵循振荡轨迹的点），则计时准确性会提高。类似地，当在存在第二个视觉干扰节拍器的情况下与听觉目标节拍器同步时，当视觉提示包含时空信息而不仅仅是时间信息时，干扰会更强。本研究调查了个体在存在相同模态时空干扰因素的情况下将运动与时空视觉线索同步的能力。此外，我们还研究了增加干扰刺激的数量如何影响保持与目标线索的同步。参与者通过以大投影屏幕为中心的垂直振荡白色目标点及时进行振荡垂直手臂运动。目标点被 2、8 或 14 个干扰点包围，这些干扰点与目标具有相同的轨迹，但相位超前或滞后为 0、100 或 200 毫秒。我们发现参与者的计时表现仅在相位领先条件下以及存在大量干扰因素时（8 和 14）受到影响。这种不对称性表明参与者仍然依赖刺激轨迹中的显着事件来同步运动。随后，围绕这些事件的注意力窗口中发生的分心对计时性能的影响最大。
The ease of synchronizing movements to a rhythmic cue is dependent on the modality of the cue presentation: timing accuracy is much higher when synchronizing with discrete auditory rhythms than an equivalent visual stimulus presented through flashes. However, timing accuracy is improved if the visual cue presents spatial as well as temporal information (e.g., a dot following an oscillatory trajectory). Similarly, when synchronizing with an auditory target metronome in the presence of a second visual distracting metronome, the distraction is stronger when the visual cue contains spatial-temporal information rather than temporal only. The present study investigates individuals’ ability to synchronize movements to a temporal-spatial visual cue in the presence of same-modality temporal-spatial distractors. Moreover, we investigated how increasing the number of distractor stimuli impacted on maintaining synchrony with the target cue. Participants made oscillatory vertical arm movements in time with a vertically oscillating white target dot centered on a large projection screen. The target dot was surrounded by 2, 8, or 14 distractor dots, which had an identical trajectory to the target but at a phase lead or lag of 0, 100, or 200 ms. We found participants’ timing performance was only affected in the phase-lead conditions and when there were large numbers of distractors present (8 and 14). This asymmetry suggests participants still rely on salient events in the stimulus trajectory to synchronize movements. Subsequently, distractions occurring in the window of attention surrounding those events have the maximum impact on timing performance.
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影响因子：
2.1
作者：
Richardson, Michael J.;Marsh, Kerry L.;Schmidt, R. C.
通讯作者：
Schmidt, R. C.
影响因子：
2.3
作者：
Hove, Michael J.;Iversen, John R.;Repp, Bruno H.
通讯作者：
Repp, Bruno H.
影响因子：
2.3
作者：
Repp, BH;Penel, A
通讯作者：
Penel, A
影响因子：
56.9
作者：
Spencer, RMC;Zelaznik, HN;Ivry, RB
通讯作者：
Ivry, RB
影响因子：
2.7
作者：
Debats, Nienke B.;Ridderikhoff, Arne;Peper, C. (Lieke) E.
通讯作者：
Peper, C. (Lieke) E.