Navon figure

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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.

Example

A letter T (global) composed of letter S

 SSSSSSSSSSSSSSSSSSSSSSSSS
 SSSSSSSSSSSSSSSSSSSSSSSSS
 SS        SSSSS        SS
           SSSSS
           SSSSS
           SSSSS
           SSSSS
           SSSSS
           SSSSS
          SSSSSSS
       SSSSSSSSSSSSS

References

↑ Assessing Attention in Unilateral Neglect
↑ Navon, 1977 cited in (1)
↑ Davidoff, J.; E. Fonteneau, J. Fagot (Sep. 2008). "Local and global processing: Observations from a remote culture". Cognition 108 (3): 702–709. doi:10.1016/j.cognition.2008.06.004. Check date values in: |date= (help)
↑ Simultanagnosia, 2009
↑ McKone, E.; Davies, A.A., Fernando, D., Aalders, R., Leung, H., Wickramariyaratne, T., Platow, M.J. (July 2010). "Asia has the global advantage: Race and visual attention.". Vision Research 50 (16): 1540–1549. doi:10.1016/j.visres.2010.05.010. Cite uses deprecated parameters (help)

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

v t e Neuropsychological tests

Battery	Cognistat Halstead-Reitan Neuropsychological Battery Luria-Nebraska neuropsychological battery Montreal Cognitive Assessment Repeatable Battery for the Assessment of Neuropsychological Status

Arousal/Attention	Continuous Performance Task Four boxes test Galveston Orientation and Amnesia Test (GOAT) Paced Auditory Serial Addition Test Posner cueing task Symbol Digit Modalities Test (SDMT) Test of everyday attention Test of Variables of Attention

Sensation/Perception	Bender-Gestalt Test Benton Visual Retention Test Dot cancellation test Navon figure Rey-Osterrieth Complex Figure

Memory	1-2-AX working memory task California Verbal Learning Test Digit symbol substitution test Test of Memory Malingering (TOMM) Wechsler Memory Scale

Language	Boston Diagnostic Aphasia Examination Boston Naming Test Controlled Oral Word Association Test (COWAT) Thurstone Word Fluency Test Token Test

Motor	Compensatory tracking task Purdue Pegboard Test

Problem-solving	Delis–Kaplan Executive Function System (D-KEFS) Hayling and Brixton tests Tower of London-Drexel University (TOL^dx) Trail Making Test Wisconsin Card Sorting Test (WCST)

Sleep	Epworth Sleepiness Scale Morningness-eveningness questionnaire

Specific impairments	British Columbia Postconcussion Symptom Inventory Clinical Dementia Rating Digit Cancellation Test Disability Rating Scale Florida Cognitive Activities Scale General Practitioner Assessment Of Cognition Glasgow Coma Scale Glasgow Outcome Scale MCI Screen Mini–mental state examination Pediatric Attention Disorders Diagnostic Screener Rivermead post-concussion symptoms questionnaire

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Navon figure

Example

See also

References