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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 Jan 21
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      渡辺色 @eijwatpic.twitter.com/dhFUu5g9xl

      2 replies 2 retweets 6 likes
      Show this thread
    2. Eiji_Watanabe‏ @eijwat Jan 21
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      Replying to @AkiyoshiKitaoka

      渡辺色はよくひろがるなー。これも縮む方がいるのだろうか

      1 reply 0 retweets 1 like
    3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Jan 21
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      Replying to @eijwat

      京都市長選にあわせまして、ツイッター投票を開始しました。pic.twitter.com/a5BGzbr7C9

      1 reply 0 retweets 2 likes
    4. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Jan 21
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      Replying to @AkiyoshiKitaoka @eijwat

      まだ開票率は少ないですが、縮んで見える人はいますね。

      1 reply 0 retweets 1 like
    5. Eiji_Watanabe‏ @eijwat Jan 21
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      Replying to @AkiyoshiKitaoka

      かなりの割合の方が縮んで見えていますね。

      1 reply 0 retweets 0 likes
    6. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Jan 21
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      Replying to @eijwat

      どうやら、拡大相と縮小相があるようです。

      1 reply 0 retweets 1 like
    7. Eiji_Watanabe‏ @eijwat Jan 21
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      Replying to @AkiyoshiKitaoka

      つまり、どちらの相を「知覚として」報告したかということでしょうか。

      1 reply 0 retweets 1 like
    8. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Jan 21
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      Replying to @eijwat

      そう予想します。色依存のフレーザー・ウィルコックス錯視の例もありますし。

      1 reply 0 retweets 1 like
    9. Eiji_Watanabe‏ @eijwat Jan 21
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      Replying to @AkiyoshiKitaoka

      なるほど。それなら腑に落ちます。ずっと拡大しているのなら埋め尽くされるはずですが、そうならないので逆の相があるはずです。”色非依存”のフレーザー・ウィルコックス錯視では、逆相の報告はないのでしょうか?

      2 replies 0 retweets 0 likes
    10. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Jan 21
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      Replying to @eijwat

      ”色非依存”のフレーザー・ウィルコックス錯視では、逆相の観察はないです。細かいことを言うとあるのですが、たぶん違う話です。次のツイートに続きます。

      1 reply 0 retweets 1 like
      Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Jan 21
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      Replying to @AkiyoshiKitaoka @eijwat

      たとえば、添付図は「蛇の回転」のグレースケール版で、反時計回りに回転して見えます。この画像のコントラストを下げるとともに明るくしますと、わずかに逆錯視になります。かなり弱く、色依存のフレーザー・ウィルコックス錯視で見られるような力強い逆錯視ではありません。pic.twitter.com/NGbCIB1uJl

      10:47 PM - 21 Jan 2020
      • 2 Likes
      • James Montagna® Saves The Zoo Eiji_Watanabe
      1 reply 0 retweets 2 likes
        1. New conversation
        2. Eiji_Watanabe‏ @eijwat Jan 21
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          Replying to @AkiyoshiKitaoka

          なるほど。pic.twitter.com/pTAZ4T5df0左図は強く反時計回りに、右図はわずかに時計回りに知覚されます。右図の時計回りは左図のおかげかもしれません。つまり、この左図を時計回りと報告する方はいないと。。。

          1 reply 0 retweets 1 like
        3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka Jan 21
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          Replying to @eijwat

          こちらも投票にしてみました。

          1 reply 0 retweets 1 like
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