Spering Miriam, Montagnini Anna
Department of Psychology & Center for Neural Science, New York University, NY, United States.
Vision Res. 2011 Apr 22;51(8):836-52. doi: 10.1016/j.visres.2010.10.017. Epub 2010 Oct 20.
Many neurophysiological studies in monkeys have indicated that visual motion information for the guidance of perception and smooth pursuit eye movements is - at an early stage - processed in the same visual pathway in the brain, crucially involving the middle temporal area (MT). However, these studies left some questions unanswered: Are perception and pursuit driven by the same or independent neuronal signals within this pathway? Are the perceptual interpretation of visual motion information and the motor response to visual signals limited by the same source of neuronal noise? Here, we review psychophysical studies that were motivated by these questions and compared perception and pursuit behaviorally in healthy human observers. We further review studies that focused on the interaction between perception and pursuit. The majority of results point to similarities between perception and pursuit, but dissociations were also reported. We discuss recent developments in this research area and conclude with suggestions for common and separate principles for the guidance of perceptual and motor responses to visual motion information.
许多针对猴子的神经生理学研究表明，用于指导感知和平滑追踪眼球运动的视觉运动信息在大脑的同一视觉通路中进行早期处理，其中关键涉及颞中区（MT）。然而，这些研究留下了一些未解答的问题：在该通路中，感知和追踪是由相同的还是独立的神经元信号驱动的？视觉运动信息的感知解释和对视觉信号的运动反应是否受同一神经元噪声源的限制？在此，我们回顾了受这些问题启发而开展的心理物理学研究，并在健康人类观察者中对感知和追踪进行了行为学比较。我们还回顾了专注于感知与追踪之间相互作用的研究。大多数结果表明感知和追踪之间存在相似之处，但也有分离现象的报道。我们讨论了该研究领域的最新进展，并就视觉运动信息的感知和运动反应指导的共同原则和不同原则提出了建议。
