Navon figure
A Navon figure is made of a larger recognisable shape, such as a letter, composed of copies of a smaller different shape. Navon figures are used in tests of visual neglect.[1]. David Navon's research demonstrated that global features are perceived more quickly than local features.[2] Jules Davidoff also performed research, but in a remote culture, finding opposite results; the participants more readily identified the local features.[3] Patients with Simultanagnosia have difficulty identifying global features, and when presented with a Navon figure will identify only the local features.[4] In a recent study comparing global-local processing in different races [5], it was found that East Asians demonstrated significantly stronger global processing than Caucasians, implying that in terms of research on visual attention, race should be acknowledged in order to come to valid theoretical conclusions.
Example
A letter T (global)composed of letter S
SSSSSSSSSSSSSSSSSSSSSSSSS
SSSSSSSSSSSSSSSSSSSSSSSSS
SS SSSSS SS
SSSSS
SSSSS
SSSSS
SSSSS
SSSSS
SSSSS
SSSSSSS
SSSSSSSSSSSSS
See also
References
- ^ Assessing Attention in Unilateral Neglect
- ^ Navon, 1977 cited in (1)
- ^ Davidoff, J. (2008). "Local and global processing: Observations from a remote culture". Cognition. 108 (3): 702–709. doi:10.1016/j.cognition.2008.06.004.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help); Unknown parameter|month=ignored (help) - ^ Simultanagnosia, 2009
- Nature Neuroscience 9, 740 - 742 (2006) Published online: 14 May 2006 | doi:10.1038/nn1709
- David Navon, Forest before trees: The precedence of global features in visual perception Cognitive Psychology Volume 9, Issue 3, July 1977, Pages 353-383