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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. さわちゃそ‏ @sawachaso 13 Oct 2018
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      さわちゃそ Retweeted さわちゃそ

      @AkiyoshiKitaoka 突然失礼致します。いつも楽しくツイートを拝見しております。 自転車などで前を見ながら走行している際、錯視のような現象を感じているのですが、これは既に知られている現象なのでしょうか?https://twitter.com/sawachaso/status/1051135667114106880 …

      さわちゃそ added,

      さわちゃそ @sawachaso
      錯視には詳しくないけど、自転車に乗っていると感じる、錯視に関係ありそうな現象がある。 走っている道の端に一定間隔で支柱のあるフェンスが続いているという場面で、フェンスの支柱を見ていない(=視界の端にある)状態と、直接見ている状態とでは支柱が通り過ぎるテンポが変わって見える現象。
      Show this thread
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    2. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 13 Oct 2018
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      Replying to @sawachaso

      運動して見える対象を見る時、静止した環境のどこかに目を止めて観察する場合と、運動して見える対象に目を止めて観察する場合、後者は前者よりも速度が遅く知覚されるという現象のことですね。自分が静止していて、動いているものを見る場合については、論文があったと思います。

      1 reply 1 retweet 1 like
    3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 13 Oct 2018
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      Replying to @AkiyoshiKitaoka @sawachaso

      一方、ご質問の「自分が動いている場合の去りゆく景色の運動知覚」についての研究があるのかどうかは、私は知らないです。運動視の研究者の多くは暗室での実験室実験を好みますから、もしかすると研究されたことがない可能性もあるかもとは思います。

      1 reply 1 retweet 1 like
      Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 13 Oct 2018
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      Replying to @AkiyoshiKitaoka @sawachaso

      そういう現象を錯視と呼ぶかというと、呼ぶ人と呼ばない人がいます。知覚は対象の「真の」性質からある程度はズレるとしたものですから、そう言う意味ではすべて錯覚・錯視なのですが、その中でも「おもしろい知覚」を錯視と呼ぶ傾向にあります。

      6:25 PM - 13 Oct 2018
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      • さわちゃそ
      1 reply 1 retweet 1 like
        1. New conversation
        2. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 13 Oct 2018
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          Replying to @AkiyoshiKitaoka @sawachaso

          @sawachasoさんはその現象を「おもしろい」と思ったからこそ錯視屋の私に連絡したわけですから、少なくとも@sawachasoさんにはその現象は錯視です。あとで私も自転車に乗って観察してみます。pic.twitter.com/bUzP4qOG2D

          1 reply 2 retweets 1 like
        3. さわちゃそ‏ @sawachaso 13 Oct 2018
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          Replying to @AkiyoshiKitaoka

          懇切丁寧なお返事、ありがとうございます。 錯視と呼べるかどうかの傾向についてのお話も、大変興味深く読ませていただきました。暗室での実験室研究と聞き、学生時代にディスプレイに映る図形などに反応してキーボードを押すといった被験者アルバイトをしていたことを思い出しました。

          1 reply 0 retweets 1 like
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