Mori Toshio, Kai Shoichi
Department of Applied Physics, Faculty of Engineering, Kyushu University, 6-10-1 Higashi-ku, Fukuoka 812-8581, Japan.
Phys Rev Lett. 2002 May 27;88(21):218101. doi: 10.1103/PhysRevLett.88.218101. Epub 2002 May 10.
We present the first observation of stochastic resonance (SR) in the human brain's visual processing area. The novel experimental protocol is to stimulate the right eye with a subthreshold periodic optical signal and the left eye with a noisy one. The stimuli bypass sensory organs and are mixed in the visual cortex. With many noise sources present in the brain, higher brain functions, e.g., perception and cognition, may exploit SR.
我们首次观察到人类大脑视觉处理区域中的随机共振（SR）现象。新颖的实验方案是用阈下周期性光信号刺激右眼，并用带噪声的信号刺激左眼。这些刺激绕过感觉器官并在视觉皮层中混合。由于大脑中存在许多噪声源，诸如感知和认知等更高层次的脑功能可能会利用随机共振。
