Human handedness in interactive situations: Negative perceptual frequency effects can be reversed!
Human handedness in interactive situations: Negative perceptual frequency effects can be reversed!
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DOI：
10.1080/02640414.2012.654811
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发表时间：
2012-01-01
影响因子：
3.4
通讯作者：
Baker, Joseph
中科院分区：
文献类型：
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作者：
Schorer, Joerg;Loffing, Florian;Baker, Joseph
左撇子表演者似乎在互动运动中享有优势。研究人员认为，这主要是由于与右撇子相比，左撇子相对稀缺。这种与频率相关的负面优势很可能出现在针对左撇子对手的低效游戏行为中，例如正确预测左撇子行动意图的能力下降。我们使用前后保留设计来测试这种与频率相关的负面知觉效应是否可以通过有效的训练来逆转。在一项基于视频的测试中，30 名手球新手预测了右手和左手球员投出暂时遮挡的手球罚球的击球结果。在测试前和测试后之间，参与者接受了感知训练计划以提高预测准确性，并在一周后进行了未填写的保留测试。参与者被分为两个特定手部训练组（即在训练期间仅进行右手或左手击球）和一个混合组（即同时进行右手和左手击球）。我们的结果支持负频率依赖优势假设，因为特定手部的感知训练导致了特定部位预期技能的提高。同样，研究结果提供了实验证据来支持负频率依赖选择机制有助于维持旋手性多态性的论点。
Left-handed performers seem to enjoy an advantage in interactive sports. Researchers suggest this is predominantly due to the relative scarcity of left-handers compared with right-handers. Such negative frequency-dependent advantages are likely to appear in inefficient game-play behaviour against left-handed opponents such as reduced ability to correctly anticipate left-handers' action intentions. We used a pre-post retention design to test whether such negative frequency-dependent perceptual effects can be reversed via effective training. In a video-based test, 30 handball novices anticipated the shot outcome of temporally occluded handball penalties thrown by right-and left-handed players. Between the pre- and post-tests, participants underwent a perceptual training programme to improve prediction accuracy, followed by an unfilled retention test one week later. Participants were divided into two hand-specific training groups (i.e. only right-or left-handed shots were presented during training) and a mixed group (i.e. both right- and left-handed shots were presented). Our results support the negative frequency-dependent advantage hypothesis, as hand-specific perceptual training led to side-specific improvement of anticipation skills. Similarly, findings provide experimental evidence to support the contention that negatively frequency-dependent selection mechanisms contributed to the maintenance of the handedness polymorphism.