Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
AkiyoshiKitaoka's profile
Akiyoshi Kitaoka
Akiyoshi Kitaoka
Akiyoshi Kitaoka
@AkiyoshiKitaoka

Tweets

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

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. HIMUKA‏ @flock_pina 3 Nov 2018
      • Report Tweet
      • Report NetzDG Violation

      写真は北岡先生の著書の錯視入門(朝倉書店)から引用です。図はネオン明るさ錯視と呼ばれるもので、グレーの内側の円の輝度は同じなんですが、左の方が明るく見えます。今日もう一つ発見したことがあって、グレーの正方形が膨らんで見えるなぁと思ってずっと気になっていました。☺pic.twitter.com/tLVKuEM7ZJ

      1 reply 0 retweets 4 likes
      Show this thread
    2. HIMUKA‏ @flock_pina 5 Nov 2018
      • Report Tweet
      • Report NetzDG Violation

      やっぱり正方形が膨張して見える。

      1 reply 0 retweets 1 like
      Show this thread
    3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 5 Nov 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @flock_pina

      「中心ドリフト錯視」(コントラストの低い方から高い方に動いて見える錯視。中心視でも見える)と思いますけど、大阪産業大学の藤原君の作品を見ていると、違うのかもしれない。pic.twitter.com/Z3D5fOoKcb

      1 reply 0 retweets 1 like
    4. HIMUKA‏ @flock_pina 5 Nov 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @AkiyoshiKitaoka

      これは動いて見えますね☺錯視の科学ハンドブック見ますとオービソン錯視の場合、正方形が内側に引っ込んだように見えるので、この逆バージョンの錯視はないかなぁと探していたところです。

      2 replies 0 retweets 1 like
      Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 5 Nov 2018
      • Report Tweet
      • Report NetzDG Violation
      Replying to @flock_pina

      正方形が膨らんで見える図形を作ってみました。HIMUKAさんもたぶん作れたとは思いますが。pic.twitter.com/6ZH8PelKJo

      5:14 PM - 5 Nov 2018
      • 2 Likes
      • Atsushi Ohashi HIMUKA
      1 reply 0 retweets 2 likes
        1. New conversation
        2. HIMUKA‏ @flock_pina 5 Nov 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @AkiyoshiKitaoka

          いえ、全然基礎力がたりないので😵パッと作れないんですよ~。 すごい❗❗

          1 reply 0 retweets 1 like
        3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 5 Nov 2018
          • Report Tweet
          • Report NetzDG Violation
          Replying to @flock_pina

          ツェルナー錯視の彎曲錯視です。pic.twitter.com/xbojTSyjoR

          2 replies 0 retweets 1 like
        4. 3 more replies

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2020 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info