The sequence of cortical activity inferred by response latency variability in the human ventral pathway of face processing.

ABSTRACT: Variability in neuronal response latency has been typically considered caused by random noise. Previous studies of single cells and large neuronal populations have shown that the temporal variability tends to increase along the visual pathway. Inspired by these previous studies, we hypothesized that functional areas at later stages in the visual pathway of face processing would have larger variability in the response latency. To test this hypothesis, we used magnetoencephalographic data collected when subjects were presented with images of human faces. Faces are known to elicit a sequence of activity from the primary visual cortex to the fusiform gyrus. Our results revealed that the fusiform gyrus showed larger variability in the response latency compared to the calcarine fissure. Dynamic

SUBMITTER: Lin JL 

PROVIDER: S-EPMC5895585 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature