Effects of stimulus features on visual processing for communication between human and robot
Effects of stimulus features on visual processing for communication between human and robot
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DOI：
10.1109/icma.2017.8015850
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发表时间：
2017-08
期刊：
影响因子：
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通讯作者：
Fengxia Wu;Yanna Ren;Qiong Wu;Y. Ejima;Xiaoyu Tang;Weiping Yang;Jiajia Yang;Satoshi Takahashi
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文献类型：
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作者：
Fengxia Wu;Yanna Ren;Qiong Wu;Y. Ejima;Xiaoyu Tang;Weiping Yang;Jiajia Yang;Satoshi Takahashi
虽然先前的研究已经证明了人类在检测和辨别任务中的视觉加工，但检测和辨别任务如何改变视觉加工尚未完全阐明。为了研究这个问题，我们设计了两个经典的知觉任务：1）光栅检测实验，2）光栅方向辨别实验。在光栅检测实验中，参与者被指示识别刺激，如果他们看到一个刺激，按下右按钮，尽可能快和准确。在光栅方向辨别实验中，被试被要求尽可能快速准确地识别刺激的方向并按下相应的按钮。我们通过测量灵敏度的大小和通过反应时间（RT）的拦截来评估多样性。结果表明，反应时对实验任务有很强的依赖性。对辨别任务的反应明显慢于对检测任务的反应（p0.05）.我们的研究结果对不同实验任务下大脑如何处理视觉信号提供了独特的见解，并将为人机信号处理提供一些基础数据。
Although previous studies have demonstrated visual processing in detection and discrimination task in human, how detection and discrimination task alter visual processing has not yet been completely elucidated. To investigate this issue, we design performing two classical perceptual tasks: 1) grating detection experiment, 2) grating orientation discrimination experiment. In grating detection experiment, participants were instructed to identify stimulus, if they saw a stimulus, by pressing right button as quickly and accurately as possible. In grating orientation discrimination experiment, participants were told to identify the orientation of the stimulus and pressed relevant button as quickly and accurately as possible. We assessed the diversity by measuring the magnitude of sensitivity and intercepts through reaction times (RT). The results showed that RT strongly depended on experimental task. The response to discrimination task is significantly slower than that for detection task (p 0.05). Our results provide unique insight into how the brain processes visual signal of different experimental task, and will provide some basic data for human-robot signal processing.