door ypsilon » do 18 jun 2009, 16:34
groen zwart paars oranje geel
Dat heet trouwens een
Strooptaak. Het effect treedt duidelijk ook op synesthetici, zie o.a.
hier en
hier.
For colour naming, the hypothesis was that when the colour of the actual print of the digit mismatched the colour of the participant's digit photism, colour naming times would be slower than when the print and digit photism matched, or when the digit was in black print. For digit naming, it was predicted that naming the digit corresponding to a coloured circle (that corresponded to one of her photisms for digits) would take longer than naming digits printed in any colour. ANOVAs and Tukey tests supported these hypotheses (P< .01).
If the number has a different color than the one the synesthesia evokes--a green 5, instead of the synesthetic red, for example--it takes slightly longer for the synesthete to name the color. The induced color delays the ability to report the real color. This effect, called stroop interference, shows that the color associations are automatic.
Dat synesthesie zich leent tot een hoop experimenten is duidelijk (uit de link van Scientific American):
The font that evokes the most optimally saturated color is usually the simplest--for example, the clean lines of the typeface Helvetica rather than the ornate Gothic. But we have seen rare examples in which an unusual font was more effective at invoking strong color. We suggest that such fonts might serve as ultranormal stimuli that evoke even higher responses from the neurons involved with graphemes (the physical appearance of letters or numbers) than more prototypical fonts.
In one study subject, when we decreased the contrast of a number on a computer screen, he noticed a matching reduction in the saturation of the synesthetically induced color; he did not experience any colors when the contrast was below about 8 to 9 percent, even when the number was still clearly visible. Such sensitivity to the elementary physical parameters defining the written number, or grapheme, also supports our view that the effect is indeed sensory, rather than a phenomenon of memory.
We began with a small cluster of 2's embedded in a large matrix of 5's on a computer monitor As indicated in our article, normal individuals cannot see the embedded cluster. This whole display was flashed on the screen as the first frame of a movie and followed by frame two in the same location. In frame two the exact positions of the 5's were randomized and the cluster of 2's as a whole was shifted rightward or upward. Normal observers simply saw random incoherent motion, with the 2's and 5's randomly and indiscernibly changing into each other. But when we showed the same display to a synesthete who saw 2's as red and 5's as green, she saw a "red cluster" jumping left and right (or up and down) on a "green background"--the green being the synesthetic color induced by the 5's.
[quote][size=150][color="#ff0000"]groen[/color] [color="#00ee00"]zwart[/color] [color="#ffee00"]paars[/color] [color="#0000ff"]oranje[/color] [color="#000000"]geel[/color][/size][/quote]
Dat heet trouwens een [url=http://en.wikipedia.org/wiki/Stroop_effect]Strooptaak[/url]. Het effect treedt duidelijk ook op synesthetici, zie o.a. [url=http://www.informaworld.com/smpp/content~db=all~content=a713751800]hier[/url] en [url=http://www.scientificamerican.com/article.cfm?id=more-common-questions-abo-2003-04-14]hier[/url].
[quote]For colour naming, the hypothesis was that when the colour of the actual print of the digit mismatched the colour of the participant's digit photism, colour naming times would be slower than when the print and digit photism matched, or when the digit was in black print. For digit naming, it was predicted that naming the digit corresponding to a coloured circle (that corresponded to one of her photisms for digits) would take longer than naming digits printed in any colour. ANOVAs and Tukey tests supported these hypotheses (P< .01).[/quote]
[quote]If the number has a different color than the one the synesthesia evokes--a green 5, instead of the synesthetic red, for example--it takes slightly longer for the synesthete to name the color. The induced color delays the ability to report the real color. This effect, called stroop interference, shows that the color associations are automatic.[/quote]
Dat synesthesie zich leent tot een hoop experimenten is duidelijk (uit de link van Scientific American):
[quote]The font that evokes the most optimally saturated color is usually the simplest--for example, the clean lines of the typeface Helvetica rather than the ornate Gothic. But we have seen rare examples in which an unusual font was more effective at invoking strong color. We suggest that such fonts might serve as ultranormal stimuli that evoke even higher responses from the neurons involved with graphemes (the physical appearance of letters or numbers) than more prototypical fonts.[/quote]
[quote]In one study subject, when we decreased the contrast of a number on a computer screen, he noticed a matching reduction in the saturation of the synesthetically induced color; he did not experience any colors when the contrast was below about 8 to 9 percent, even when the number was still clearly visible. Such sensitivity to the elementary physical parameters defining the written number, or grapheme, also supports our view that the effect is indeed sensory, rather than a phenomenon of memory.[/quote]
[quote]We began with a small cluster of 2's embedded in a large matrix of 5's on a computer monitor As indicated in our article, normal individuals cannot see the embedded cluster. This whole display was flashed on the screen as the first frame of a movie and followed by frame two in the same location. In frame two the exact positions of the 5's were randomized and the cluster of 2's as a whole was shifted rightward or upward. Normal observers simply saw random incoherent motion, with the 2's and 5's randomly and indiscernibly changing into each other. But when we showed the same display to a synesthete who saw 2's as red and 5's as green, she saw a "red cluster" jumping left and right (or up and down) on a "green background"--the green being the synesthetic color induced by the 5's.[/quote]
