Battelli Lorella, Walsh Vincent, Pascual-Leone Alvaro, Cavanagh Patrick
Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Curr Opin Neurobiol. 2008 Apr;18(2):120-6. doi: 10.1016/j.conb.2008.08.004. Epub 2008 Aug 29.
The perception of events in space and time is at the root of our interactions with the environment. The precision with which we perceive visual events in time enables us to act upon objects with great accuracy and the loss of such functions due to brain lesions can be catastrophic. We outline a visual timing mechanism that deals with the trajectory of an object's existence across time, a crucial function when keeping track of multiple objects that temporally overlap or occur sequentially. Recent evidence suggests these functions are served by an extended network of areas, which we call the 'when' pathway. Here we show that the when pathway is distinct from and interacts with the well-established 'where' and 'what' pathways.
对空间和时间中事件的感知是我们与环境互动的基础。我们在时间上感知视觉事件的精度使我们能够极其准确地对物体采取行动，而由于脑损伤导致这种功能丧失可能是灾难性的。我们概述了一种视觉计时机制，该机制处理物体在时间上的存在轨迹，这是跟踪多个时间上重叠或相继出现的物体时的一项关键功能。最近的证据表明，这些功能由一个扩展的区域网络提供，我们将其称为“何时”通路。在这里，我们表明“何时”通路与已确立的“何处”和“何物”通路不同且相互作用。
