TY  - GEN
A1  - Sinn, Petra
A1  - Engbert, Ralf
T1  - Saccadic facilitation by modulation of microsaccades in natural backgrounds
T2  - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe
N2  - Saccades move objects of interest into the center of the visual field for high-acuity visual analysis. White, Stritzke, and Gegenfurtner (Current Biology, 18, 124–128, 2008) have shown that saccadic latencies in the context of a structured background are much shorter than those with an unstructured background at equal levels of visibility. This effect has been explained by possible preactivation of the saccadic circuitry whenever a structured background acts as a mask for potential saccade targets. Here, we show that background textures modulate rates of microsaccades during visual fixation. First, after a display change, structured backgrounds induce a stronger decrease of microsaccade rates than do uniform backgrounds. Second, we demonstrate that the occurrence of a microsaccade in a critical time window can delay a subsequent saccadic response. Taken together, our findings suggest that microsaccades contribute to the saccadic facilitation effect, due to a modulation of microsaccade rates by properties of the background.
T3  - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 595 
KW  - eye movements
KW  - microsaccade
KW  - saccade latency
KW  - background texture
KW  - saccadic facilitation effect
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-431817
SN  - 1866-8364
IS  - 595
ER  -