%0 Journal Article %T A visual yet non-optical subjective intonation - Una entonaci車n subjetiva visual pero no 車ptica. %A Ronald C. Blue %A Mariela Szirko %J Electroneurobiolog赤a %D 2005 %I %X If, in the animated figure at the outset of this article, your eyes follow the "movement" of the rotating pink dot, you will only see one color in the dots, some hue of pink, magenta, or lilac. If you stare at the black + in the center, the "moving dot" turns to green. Now, concentrate on the black + in the center of the picture. After a short period of time, all the pink dots will slowly disappear, and you will only see a green dot rotating. A bit of what our brain contributes to what we see, in this fashion, is detected and told apart from what our psyche (memories) contributes and what the outer scene (the optical image) contributes. There really is no green dot on this webpage, and the pink ones really don't disappear. We are very grateful to Prof. Bach for contributing the controllable version below. With the ※Colour㊣§ button one can switch to other colors and observe the respective opponent color. [Remember to fixate for a while, because the adaptation to the previous colour subsists for several seconds.] Prof. Bach also mentions: "It may surprise you that the complementary colour to red is not green (as mentioned in many textbooks), but blue-green. The color pickers further down let you explore the full range of colours, including the effect of the background colour." He also indicates that the experience of leaving only a rotating green spot is easier if one reduces saturation to, e.g., appr. 20%. (Bilingual article, English and Spanish). CASTELLANO: Si aqu赤 arriba sigue con la mirada el "movimiento" del bot車n rosado que rota, ver芍 las figuras s車lo de un color: rosa, o lila. Estos son los tonos en que el efecto se ve mejor y por eso la ilusi車n suele denominarse el perseguidor rosado, pero en otros colores tambi谷n se ve. Si fija su mirada en la cruz del centro, el "bot車n rotador" se volver芍 verde. Conc谷ntrese en mirar la cruz del centro: tras breve lapso, gradualmente todos los botones rosa desaparecer芍n y ver芍 un solo bot車n verde rotando. Se detecta y distingue as赤 algo de lo que aporta nuestro cerebro a lo que vemos, para combinarse a lo que aporta nuestro psiquismo (memorias) y a lo que aporta la escena exterior (la imagen 車ptica): realmente no existe en esta p芍gina de red ning迆n bot車n verde y los de color rosado realmente no desaparecen. Agradecemos al profesor Bach por aportar la versi車n controlable que sigue. Con el bot車n ※Colour㊣§ uno puede cambiar de color y observar el color oponente respectivo. [No deje de fijar un rato la visi車n, porque la adaptaci車n al color previo subsiste algunos segundos.] El profesor Bach asimismo menciona: "Puede %K Optical illusion %K lilac chaser %K visual non-optical intonation %K opposition memory %U http://electroneubio.secyt.gov.ar/non-optic_visual_intonation.htm