Late maturation of visual spatial integration in humans
AUTOR(ES)
Kovács, Ilona
FONTE
The National Academy of Sciences
RESUMO
Visual development is thought to be completed at an early age. We suggest that the maturation of the visual brain is not homogeneous: functions with greater need for early availability, such as visuomotor control, mature earlier, and the development of other visual functions may extend well into childhood. We found significant improvement in children between 5 and 14 years in visual spatial integration by using a contour-detection task. The data show that long-range spatial interactions—subserving the integration of orientational information across the visual field—span a shorter spatial range in children than in adults. Performance in the task improves in a cue-specific manner with practice, which indicates the participation of fairly low-level perceptual mechanisms. We interpret our findings in terms of a protracted development of ventral visual-stream function in humans.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=18436Documentos Relacionados
- Interhemispheric transfer of visual information in humans: spatial characteristics.
- Spatial integration and sensitivity changes in the human rod visual system.
- Delayed visual maturation in infancy.
- Visual-spatial and verbal-spatial binding in working memory
- Distinct neural correlates of visual long-term memory for spatial location and object identity: a positron emission tomography study in humans.
