Attention and P300-based BCI performance in people with amyotrophic lateral sclerosis.

Attention and P300-based BCI performance in people with amyotrophic lateral sclerosis.
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DOI:
10.3389/fnhum.2013.00732
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发表时间:
2013
影响因子:
2.9
通讯作者:
Cincotti F
Cincotti F
中科院分区:
医学3区
文献类型:
--
作者:
Riccio A;Simione L;Schettini F;Pizzimenti A;Inghilleri M;Belardinelli MO;Mattia D;Cincotti F

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本研究旨在探讨肌萎缩侧索硬化症(ALS)患者在控制基于P300的脑机接口(BCI)时注意和记忆过程的支持。8名ALS患者执行两项行为任务:(i)快速串行视觉呈现(RSVP)任务,筛选注意过滤器的时间过滤能力和更新速度,以及(ii)变化检测任务,筛选记忆容量和空间过滤能力。参与者还被要求执行基于P300的BCI拼写任务。通过使用相关和回归分析,我们发现,只有在RSVP任务的时间过滤能力是一个预测P300的BCI准确性和P300的幅度引起执行BCI任务。我们的结论是,在选择目标的过程中保持注意力过滤器活跃的能力会影响BCI控制的性能。
The purpose of this study was to investigate the support of attentional and memory processes in controlling a P300-based brain-computer interface (BCI) in people with amyotrophic lateral sclerosis (ALS). Eight people with ALS performed two behavioral tasks: (i) a rapid serial visual presentation (RSVP) task, screening the temporal filtering capacity and the speed of the update of the attentive filter, and (ii) a change detection task, screening the memory capacity and the spatial filtering capacity. The participants were also asked to perform a P300-based BCI spelling task. By using correlation and regression analyses, we found that only the temporal filtering capacity in the RSVP task was a predictor of both the P300-based BCI accuracy and of the amplitude of the P300 elicited performing the BCI task. We concluded that the ability to keep the attentional filter active during the selection of a target influences performance in BCI control.
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