Supplementary materials for : Cortical activity in the null space : permitting preparation without movement
Supplementary materials for : Cortical activity in the null space : permitting preparation without movement
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发表时间：
2014
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通讯作者：
Matthew T. Kaufman;M. Churchland;S. Ryu
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作者：
Matthew T. Kaufman;M. Churchland;S. Ryu
补充图1准备阶段和运动阶段之间的调谐不匹配。每个面板代表来自一个数据集的射速数据。对于每个神经元，首先对试验中的放电频率进行平均，然后根据神经元在运动开始时的放电速率对情况进行分类。最红的痕迹显示了每个神经元“最喜欢”的状态下神经元的平均数。最绿色的轨迹显示了每个神经元的“最不受欢迎”状态下的神经元平均数；其他两个轨迹表示第33和67个百分位数的情况。在这个过程之后，只剩下很少的预备调音，这表明在预备时期和乐章时期之间的调谐是不匹配的。每个神经元的反应在平均前按其范围归一化。目标，目标开始；移动，移动开始。比例尺显示200毫秒。补充材料：零空间中的皮质活动：允许在不移动的情况下进行准备马修·T·考夫曼，马克·M·丘奇兰，斯蒂芬·I·柳，克里希纳·V·谢诺伊
Supplementary Figure 1 Tuning is mismatched between the preparatory and movement epochs. Each panel represents firing rate data from one dataset. For each neuron, firing rates were first averaged over trials, then conditions were sorted based on the neuron’s firing rate at movement onset. The reddest trace shows the average across neurons for each neuron’s “most preferred” condition. The greenest trace shows the average across neurons for each neuron’s “least preferred” condition; the other two traces represent the 33rd and 67th percentile conditions. Very little preparatory tuning remains after this procedure, indicating that tuning is mismatched between the preparatory and movement epochs. Each neuron’s response was normalized by its range before averaging. Target, target onset; Move, movement onset. Scale bar indicates 200 ms. Supplementary materials for: Cortical activity in the null space: permitting preparation without movement Matthew T. Kaufman, Mark M. Churchland, Stephen I. Ryu, Krishna V. Shenoy