Functional subdivision of the visual field: vertical border evidenced by inhibition of return Y Bao1,2,3, Y Tong2, E Pöppel1,3 |
|---|
1Human Science Center & Institute of Medical Psychology, Ludwig-Maximilians-Universität, Munich, Germany |
| Recent studies on spatial cueing effects suggest a functional subdivision of attentional control in the visual field [Bao and Pöppel, 2007, Cognitive Processing, 8: 37-44; Bao et al., 2012, Cognitive Processing, 13(1): 93-96]. Specifically, the periphery is significantly different from the fovea and perifoveal regions of the visual field. This eccentricity effect is very robust which is independent of cortical magnification [Bao et al., 2013, Experimental Psychology, DOI:10.1027/1618-3169/a000215] and resistant to subjects’ practice [Bao et al., 2011, Neuroscience Letters, 500: 47-51]. However, all these observations come from the manipulation of stimulus eccentricity along the horizontal meridian. The present study further investigated the effects of inhibition of return (IOR) at different stimulus eccentricities along the vertical meridian in three behavioral experiments. Consistent with previous findings, IOR effects were significantly stronger at the more peripheral locations. The border between the two functional regions along the vertical meridian was at an eccentricity of approximately 6-8 degrees. The results suggest a functional dissociation of attentional control in the visual field with a narrower vertical border than the horizontal one as observed in previous studies. Acknowledgement: This work was supported by NSFC (No. 91120004). |
| Up Home |
|---|