Name: using an eeg-based brain-computer interface for virtual cursor movement with bci2000
Uploaded: 2009-07-29T16:58:00
Description: Watch this Scientific Journal Video about Using an EEG-Based Brain-Computer Interface for Virtual Cursor Movement with BCI2000 at JoVE.com

<p class="jove_content">美国国立卫生研究院NIBIB RO1：1R01EB009103 - 01 <br />临床Neuroengineering培训计划（1 T90 DK070079 - 01） <br />华莱士H库尔特基金会<br />美国国立卫生研究院的机构临床和转化科学奖<br />美国国立卫生研究院/ NCRR 1KL2RR025012 - 01 <br />威斯康星校友研究基金会</p>

<p class="jove_title">实验过程</p><ol><li>脑电图电极的连接<ol><li>电极会附着在头皮上使用脑电图帽;这简化了确保电极在头皮上的适当位置的过程中，10-20国际体系中指定。 </li><li>若要帽，标志主体的头皮上的顶点使用毡尖笔或一些其他类似的方法。要做到这一点，开始寻找关于这个问题的鼻根和枕外隆凸尖。用一个卷尺，找到这两个地点之间的距离。点之间的两分，或50％的距离，中间是顶点。请，以供日后参考点的?...

<ol>
	<li>Fabiani, G. E., McFarland, D. J., Wolpaw, J. R., Pfurtscheller, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Conversion+of+eeg+activity+into+cursor+movement+by+a+brain-computer+interface+(bci).">Conversion of eeg activity into cursor movement by a brain-computer interface (bci).</a> <em style='font-style: italic'>IEEE transactions on neural systems and rehabilitation engineering</em>. <b>12</b> (3), 331-338 (2004).</li><li>Wolpaw, J. R., McFarland, D. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Control+of+a+two-dimensional+movement+signal+by+a+noninvasive+brain-computer+interface+in+humans.">Control of a two-dimensional movement signal by a noninvasive brain-computer interface in humans.</a> <em style='font-style: italic'>Proc Natl Acad Sci USA</em>. <b>101</b> (51), 17849-17854 (2004).</li><li>Schalk, G., McFarland, D. J., Hinterberger, T., Birbaumer, N., Wolpaw, J. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Bci2000:+a+general-purpose+brain-computer+interface+(BCI)+system.">Bci2000: a general-purpose brain-computer interface (BCI) system.</a> <em style='font-style: italic'>IEEE transactions on bio-medical engineering</em>. <b>51</b> (6), 1034-1043 (2004).</li></ol>

<ol><li>至关重要的是，电极阻抗低，但没有太多的凝胶用来降低阻抗。一个单一坏通道，可以影响所有的人，通过共同的平均参考。如果阻抗可以不被多次尝试后减少，建议，一个快速的插入电极可用于，这可以简单地将进入的通过孔坏电极针放在通过注射凝胶，并在录音插入。 </li><li>在第一届会议，主题可能很难想象所需的动作。在这种情况下，可能会有所帮助他们做出真正的动作，第一，真正的运动数据进行?...

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		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
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<tr>
<td>BCI2000- Compatible Amplifer System</td>
<td>&nbsp;</td>
<td>g.USBamp</td>
<td>&nbsp;</td>
<td><a href="http://www.gtect.at">http://www.gtect.at</a></td>
</tr>
<tr>
<td>BCI2000- Compatible Amplifer System</td>
<td>&nbsp;</td>
<td>Tucker-Davis Technology</td>
<td>Rx5 or Rx 7</td>
<td><a href="http://www.tdt.com">http://www.tdt.com</a></td>
</tr>
<tr>
<td>EEG cap</td>
<td>&nbsp;</td>
<td>Electro-cap International</td>
<td>&nbsp;</td>
<td><a href="http://www.electro-cap.com">http://www.electro-cap.com</a><br />At a minimum, the cap should have electrodes over hand and feet areas (C3, C4, and Cz). Additional channels can be used for control (CP3, CP4, CPz) and for spatial filtering as well, which will improve the signal quality.</td>
</tr>
<tr>
<td>Conductive gel</td>
<td>&nbsp;</td>
<td>Electro-cap International</td>
<td>&nbsp;</td>
<td><a href="http://www.electro-cap.com">http://www.electro-cap.com</a></td>
</tr>
<tr>
<td>PC</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>Running Windows XP or Vista (at least Pentium 4, 2 GHz, 1 GB RAM)</td>
</tr>
<tr>
<td>Two monitors</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>Each at least 19in  (one for the subject and one for the researcher)</td>
</tr>		</tbody>
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using an eeg-based brain-computer interface for virtual cursor movement with bci2000

<p class="jove_content">一个脑 - 机接口（BCI）的功能，把一个神经信号的脑电图（EEG），成一个，可以用来控制计算机或其他设备的信号，如。在选定的频率垃圾箱的脑电信号的幅度进行测量，并翻译成一个设备命令在这种情况下，计算机光标的水平和垂直速度。一，脑电图电极应用到用户的头皮，使用记录大脑活动的第。接下来，校准程序是用来寻找脑电图电极和功能，用户将学习自愿调节使用的BCI。在人类中，在万亩功率（8-12赫兹）和β（18-28赫兹）频段下降幅度在一个真实或想象的的运动。这些变化可在脑电图实时检测，并用来控制BCI（[1] [2]）。因此，在筛选试验中，用户要求，使几种不同的想象与他们的手和脚的动作，以确定独特的脑电图改变与想象的运动功能。从这个校准结果将显示使用的最佳渠道，这是配置，以便在毛乌素和β频段的振幅变化垂直或水平移动光标。在这个实验中，通用的BCI系统BCI2000是用来控制信号采集，信号处理，并反馈给用户[3]。</p>

Watch this Scientific Journal Video about Using an EEG-Based Brain-Computer Interface for Virtual Cursor Movement with BCI2000 at JoVE.com

Using an EEG-Based Brain-Computer Interface for Virtual Cursor Movement with BCI2000

<p class="jove_content">在这个视频中，我们展示了一个脑 - 机接口实验，包括设立脑电图帽，校准系统，并培训用户，移动光标在两个尺寸，用想象运动一个需要运行的步骤。</p>

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