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AkiyoshiKitaoka's profile
Akiyoshi Kitaoka
Akiyoshi Kitaoka
Akiyoshi Kitaoka
@AkiyoshiKitaoka

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Akiyoshi Kitaoka

@AkiyoshiKitaoka

I am an experimental psychologist who studies visual illusions as well as makes illusion artworks. #illusion #opticalillusion #perception #錯視

Kyoto, Japan
ritsumei.ac.jp/~akitaoka/inde…
Joined December 2011

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    1. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Mar 17
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      a demo of reverse phi movement (Anstis, 1970) (thinner arcs) Rings appear to rotate to and fro according to the change in luminance, though black or white arcs are stationary.pic.twitter.com/OT5nY3KvHE

      2 replies 11 retweets 30 likes
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    2. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Mar 17
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      Rogers, B., Anstis, S., Ashida, H., and Kitaoka, A. (2019). Reversed phi and the “phenomenal phenomena” revisited. i-Perception, 10 (4), 1–22. doi:10.1177/2041669519856906

      1 reply 2 retweets 2 likes
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    3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Mar 18
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      a demo of 'phenomenal phenomena' (Gregory and Heard, 1983) Rings appear to rotate to and fro according to the change in luminance, though black or white arcs are stationary.pic.twitter.com/no41QayyRk

      2 replies 4 retweets 23 likes
      Show this thread
    4. 河邉 隆寛‏ @takkawabe Mar 18
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      Replying to @AkiyoshiKitaoka

      細かい点ですが、Phenomenal phenomenaはfigure内のグレーがstaticで背景がdynamicだったような気がします。 http://www.richardgregory.org/papers/visual_dissoc/visual-dissociations_p1.htm …

      1 reply 0 retweets 2 likes
    5. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Mar 18
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      Replying to @takkawabe

      そのバージョンを先に作るつもりだったのですが、順番が逆になりました。本質的な違いではないと思います。

      1 reply 0 retweets 0 likes
    6. 河邉 隆寛‏ @takkawabe Mar 18
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      Replying to @AkiyoshiKitaoka

      運動視に関しては本質的な違いはないと思います!ただ、現バージョンではフリッカする方が動き、オリジナルではフリッカしない方が動くという現象的な違いがあり、Phenomenal phenomenaではそのような効果は報告されていないので、本質的ではありませんでしたが念の為お伝えいたしました。

      1 reply 1 retweet 2 likes
    7. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Mar 18
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      Replying to @takkawabe

      すみません、わかりませんでした。

      1 reply 1 retweet 1 like
    8. 河邉 隆寛‏ @takkawabe Mar 18
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      Replying to @AkiyoshiKitaoka

      こちらこそすみません。。。現バージョンの様に輪郭線で閉じた領域内をフリッカさせるとフリッカ領域が動いて見え、逆にオリジナルのように輪郭線で閉じていない背景をフリッカさせるとフリッカ領域は動いて見えないなと思った次第です。現象的側面なので気になさらないで下さい。失礼いたしました!

      1 reply 1 retweet 1 like
    9. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Mar 18
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      Replying to @takkawabe

      リバースファイとphenomenal phenomenaにおいて、運動知覚が発生する作用点は輪郭部分なのですが、それらで構成されるオブジェクトの動きの知覚の感じが、オリジナルのデモとは違う感じ、というご指摘と理解しました。

      1 reply 0 retweets 1 like
    10. 河邉 隆寛‏ @takkawabe Mar 18
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      Replying to @AkiyoshiKitaoka

      はい、そのとおりです!結局は輪郭が動くのですが、輪郭の動きの(オブジェクトへの)帰属が知覚的に変わっていて面白いなと思った次第です。

      1 reply 0 retweets 2 likes
      Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Mar 18
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      Replying to @takkawabe

      なるほど、了解致しました。私もまだまだゲシュタルト心理学的思考が不足しておりましたw

      11:52 PM - 18 Mar 2020
      1 reply 0 retweets 0 likes
        1. New conversation
        2. 河邉 隆寛‏ @takkawabe Mar 19
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          Replying to @AkiyoshiKitaoka

          私は逆に、このゲシュタルト好きから抜け出したいと思っています!有難うございました。

          1 reply 0 retweets 3 likes
        3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Mar 19
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          Replying to @takkawabe

          いえいえ、どうぞこのままでw

          0 replies 0 retweets 3 likes
        4. End of conversation

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