Upper/lower visual field asymmetry on a spatial relocation memory task.
The purpose of this study was to investigate whether the lower visual field advantage reported on a number of visual tasks depends on the activity of neural systems which process information from different spaces. To this end, a double dissociation logic was followed by observing the effects of visual and spatial interference on a relocation memory task performed by 80 volunteers. Results showed that participants were better at relocating stimuli presented in the lower than in the upper visual field. Moreover, a concurrent spatial task, but not a concurrent visual task, disrupted the visual field vertical asymmetry. Those findings confirm that the vertical asymmetry of visual field depends on the spatial processing of incoming stimuli.
Genzano
V R
VR
Department of Psychology, University of Rome La Sapienza, Via del Marsi no. 78, 00185 Rome, Italy.
Di Nocera
F
F
Ferlazzo
F
F
D000328:Adult; D006801:Humans; D008568:Memory / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods*; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields / Q000502:physiology*