Inhibition of return (IOR) refers to a delayed responding to targets appeared at previously cued location relative to an uncued novel location. In a recent study, Bao and Pöppel  reported a functional dissociation of inhibitory processing in the visual field with much stronger IOR magnitude in the far periphery relative to the perifoveal visual field up to 15° eccentricity. The present study aimed to examine whether this effect is sensitive to participant experience or practice. Consistent with previous findings, our data demonstrated a larger IOR magnitude at 21° relative to 7° stimulus eccentricity. More importantly, no practice-related IOR magnitude changes were observed for both perifoveal and peripheral stimuli, although response times did decrease significantly with practice. These results suggest that the eccentricity effect of IOR is a robust phenomenon which is resistant to practice.
Bibliographical noteFunding Information:
This research was supported by the National Natural Science Foundation of China (No. 30670703 ) and the Berlin Neuroimaging Center ( BMBF 01 GO 0208 BNIC ). B. Zhou was supported by Bayerische Forschungsstiftung.
- Inhibition of return
- Stimulus eccentricity
- Visual field