Spatial= figure copying, left-right, hand postures, mental rotation
Successive- tapping rhythms, ordering 4 words or symbols, or numbers
Balint's inability to do simultaneous analysis does successive
Sorkina and Homskaya (1960) found such patients could differentiate red and green, then white and yellow, but then if presented with all 4 then respond haphazardly to signals.
Tactile loss of simultaenous synthesis (agnosia) unable to synthesize a whole pattern is described by Delay (1935) and Denny Brown (1952) and called amorphosynthesis.
Other spatial synthesis tests that may be done incorrectly include drawing the direction of an arrow, distinguish symmetrical figures, know which way to draw a line in a geometrical figure, draw letters, production of mirror writing.
Saturday, February 28, 2009
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