Khuàⁿ chi̍t ê tsuân-uân

Chi̍t-pái khuàⁿ uân-á lâu tio̍h tiong-kan ê tiám, tùi-sî khòaⁿ i ū guā uân. Bián-tsîⁿ, bián tsù-tsik.

Helibrain ê tiōng-tsèng ê lângTùi Robert(Ióng-bûn) kàu-kòe, seng-bu̍t li̍k-ha̍k PhD tshù-pī-seng hu-pò͘Siōng-kīn chi̍t pái kàu-kòe

Án-tsuánn khòaⁿ lí ê hun-sò͘

  • Uân-tō͘: 100% kám khì suànn-sòaⁿ pîng-kun lī-khui siōng ha̍p ê uân-á ê hū-tō͘, chiàu uân-á pōng-kèng ê pí-lē lâi sǹg. Suànn-sòaⁿ pîng-kun khuaiⁿ 2% ê ōe, hun-sò͘ sī 98%.
  • Sòaⁿ ê si̍k-tsâi: Sòaⁿ tī uân-á téng-bīn sī tshenn-sik, piàn n̂g, kàu lī hn̄g ê só͘-tsāi piàn âng-sik.
  • Hū-sòaⁿ uân-á: Tsit sī chiàu lí khuàⁿ ê tō-hîng sǹg tshut-lâi siōng ha̍p ê uân-á. Sòaⁿ jú thiap-kīn i, hun-sò͘ jú kuân.
  • Lí ê siōng-hó hun-sò͘: Tsit ê liòng-lí-khì lāi lí siōng kuân ê hun-sò͘; tshiú-tsí kap tshiú-á hun-khui kì, in-uī khuàⁿ khí-lâi bô-kâng.
  • Hong-hiòng: Sūn-sî-tsing á-sī tò-sūn-sî-tsing. Bí-kok tuā-pō͘-hūn ê lâng tò-sūn-sî-tsing khuàⁿ; Ji̍t-pún tuā-pō͘-hūn ê lâng sūn-sî-tsing khuàⁿ [1].

Lí ē-sái iōng tshiú khuàⁿ tsuân-uân ê uân-á bô?

Bô tsuân-tsuân, m̄-koh ē-tàng khuàⁿ kah tsin tsi̍p-kīn. Tshiú khuàⁿ ê uân-á lóng ē tsún-tōng, in-uī tshiú tùi khok-sòaⁿ khuàⁿ ê sî-tsūn ē kiám-bān koh ka-kín [2]. Chiàu lán ê sǹg-huat, suànn-sòaⁿ pîng-kun lī-khui uân-á 2% ê ōe, hun-sò͘ sī 98%. Kanada sò͘-ha̍k lāu-su ê bāng-lō͘ uân-á, chiàu tsi̍t ê pō-lô-kak tsok-tsiá kó͘-sǹg , uân-tō͘ tāi-iok 99.7% [3].

Kán-tan tsu-liāu

  • Hong-hiòng kap lí tī tó-uī tuā-hàn ū koan-hē: Google ê Quick, Draw! lō͘-hiòng lāi, tāi-iok 50,000 tè Bí-kok lâng ê tō ū 86% tò-sūn-sî-tsing khuàⁿ; tāi-iok 800 tè Ji̍t-pún lâng ê tō ū 80% sūn-sî-tsing khuàⁿ [1].
  • Siá-jī si̍p-kuàn ē éng-hiáng: Ji̍t-pún gín-á tha̍k-ha̍k-hāu jú kú, jú tsē sūn-sî-tsing khuàⁿ; Bí-kok gín-á khah siông tò-sūn-sî-tsing khuàⁿ; tsu tī Bí-kok ê Ji̍t-pún gín-á khah chió sūn-sî-tsing khuàⁿ [4].
  • Tshiú sù-tō͘ ê kuī-tik: Tshiú tī khok-khì khah-kín ê só͘-tsāi kiânn khah bān , tī khah pêⁿ ê só͘-tsāi kiânn khah-kín （「2/3 chhù-hong tiāⁿ lu̍t 」）. Uân-á ê khok-tō͘ sì-kè kāng-khoán , chiàu kuī-tik sù-tō͘ eng-kai pêng-kin [2][5].
  • 「Sè-kài koan-kun」: bāng-lō͘ iáⁿ-phìⁿ lāi ê sò͘-ha̍k lāu-su āu--lâi kóng ,「sè-kài tù tshiú khuàⁿ uân-á koan-kun」 sī i kah ha̍k-sing khai sńg-chhiò kóng ê [6].
  • M̄-sī kiān-khong chí-piau: 1970 nî-tāi ū lâng kóng sūn-sî-tsing khuàⁿ uân-á sī cheng-sîn pēⁿ kéng-sìn , āu--lâi gián-kiù bô chi-chhî [7].

Uân-á tshì-giām án-tsuánn kiânn

  1. Khuàⁿ.Tshiú-tsí（á-sī tshiú-á ê àn-liú ） tī jīm-hô só͘-chāi àn lo̍h-khì , liân-sòa tsi̍t-pit khuàⁿ uân-á lâu tio̍h tiong-kan ê tiám.
  2. Tù-sî khòaⁿ.Khuàⁿ kò chi̍t toāⁿ liáu-āu , uân-tō͘ hián-sī tī tiong-kan, suànn-sòaⁿ mā ē piàn-sik.
  3. Pàng-khui.Khuàⁿ hó āu , siōng ha̍p ê uân-á ēng hū-sòaⁿ hián-sī, hē-thóng sǹg lí ê hun-sò͘.

Beh sǹg hun-sò͘, tō-hîng ài khuàⁿ kò 320°; kiat-bué ài chiap-kīn khí-tiám ; tōa-sè ài kàu （ poàⁿ-kèng chì-chió sī ōe-tô͘ khu khoah-tō͘ ê 15%）, koh ài tī 30 bió lāi oân-sêng. chhiáⁿ khuàⁿ chi̍t-khian tō hó.Lán ēng siōng sió pêⁿ hong-hoat chiàu lí khuàⁿ ê tiám sǹg-chhut uân-á, koh niû tiám kap i pêng-kin chha gōa hn̄g.Tshiú-tsí khuàⁿ ê tō chí kah tshiú-tsí khuàⁿ ê tō pí-kàu .

ūi-siáⁿ-mi̍h oân-bí ê uân-á chiah-nī pháiⁿ khuàⁿ?

Khuàⁿ uân-á su-iàu keng-kah 、 chhiú tiú 、 chhiú-oán kap chhiú-chí tàu-tīn chò-kang , tōng-chok hong-hiòng it-ti̍t piàn.Tshiú khuàⁿ khok-sòaⁿ ē chū-jiân ka-kín kiám bān [2], sok-tō͘ piàn-hòa láng khó-lêng hō͘ soàⁿ phian khì gōa-kháu á-sī lāi-bīn.Tī chhiú-ki téng , chhiú-chí mā ē am tiâu khuàⁿ ê soàⁿ.Tshiú-á ēng chéng chiah chhiú-pí î-tōng , só͘-í tshiú-á kap tshiú-tsí khuàⁿ ê hun-sò͘ bô-kāng-khoán .

Khuàⁿ kah khah uân ê koat-khiàu

  • Khuàⁿ tōa ê , ēng chéng chiah chhiú-pí. kan-ta ēng chhiú-chí khuàⁿ sè ê uân-á khah ē tín-tāng .
  • sok-tō͘ pó-chhî pêng-kin.M̄-thang siuⁿ-bān : khuàⁿ kah chin bān thong-siông ē tín-tāng .
  • khoàⁿ tiong-sim tiám , m̄-thang khoàⁿ soàⁿ. jīm-bū chiū-sī pó-chhî kah tiong-sim kāng-khoán ê kī-lī .
  • sūn-sūn á chiap khí bóe-á. chin-chē uân-á tī kiat-bóe sit hun , in ûi-jîn koáⁿ-beh chiap khí-tiám .

Tsit ê tshì-giām ē-tàng kap bē -tàng kóng siáⁿ-mi̍h

Uân-á tshì-giām sī chhù-bī ê chhiú pō͘ khòng-chè thiau-chiàn.Lí ê hun-sò͘ kap chong-tì 、 êng-bō͘ tōa sió 、 lí ēng chhiú-chí 、 pit á-sī tshiú-á í-ki̍p liān-si̍p iú-koan.Tsit m̄-sī i-liâu kiám-cha , mā m̄-sī chhiú tín-tāng kiám-cha ; i-seng ēng pa̍t-khoán khuàⁿ tô͘ jīm-bū , chhin-chhiūⁿ lê-chn̄g soàⁿ , lâi kiám-cha [8]. Khuàⁿ ê hong-hiòng kap kiān-khong bô koaiⁿ .

Siông-siông ū lâng mn̄g ê tāi-tsì

ē-sái tù tshiú khuàⁿ tsuân-uân ê uân-á bô?

Tù tshiú khuàⁿ ê uân-á bô chi̍t-ê tsuân-tsuân uân, m̄-koh lâng ē-tàng khuàⁿ kah tsin tsi̍p-kīn. Tī Helibrain uân-á tshì-giām, uân-tō͘ sī 100% kám khì suànn-sòaⁿ pîng-kun ê tín-tāng hok-tō͘ ; suànn-sòaⁿ pîng-kun khuaiⁿ 2% ê ōe, hun-sò͘ sī 98%. Beh kàu 100%, suànn-sòaⁿ tio̍h oân-choân bô tín-tāng .

Tuā-pō͘-hūn ê lâng khuàⁿ uân-á sī sūn-sî-tsing á-sī tò-sūn-sî-tsing?

Kàn lí tī tó-uī tuā-hàn ū koan-hē.Google ê Quick, Draw! tō lāi, tāi-iok 50,000 tè Bí-kok uân-á ū 86% tò-sūn-sî-tsing khuàⁿ; tāi-iok 800 tè Ji̍t-pún uân-á ū 80% sūn-sî-tsing khuàⁿ [1]. Siá-jī si̍p-kuàn khah ū éng-hiáng , pí ēng tó pêng tshiú khah-tōa [4].

Guá ê uân-tō͘ hun-sò͘ án-tsuánn sǹg?

Helibrain uân-á tshì-giām ēng lí suànn-sòaⁿ só͘-iú ê tiám thò sǹg siōng ha̍p ê uân-á（siōng sió pêⁿ hong-hoat ）,koh niû múi ê tiám lī uân-á gōa hn̄g. pêng-kin kī-lī chiàu uân-á poàⁿ-kèng pí lē sǹg, chiū-sī suànn-sòaⁿ ê tín-tāng hok-tō͘ ; uân-tō͘ sī 100% kám khì tín-tāng hok-tō͘. tn̂g-îⁿ 、 ū nah hûn á-sī tāng tha̍h lóng ē hō͘ hun-sò͘ khah kē .

ūi-siáⁿ-mi̍h guá tī chhiú-ki kap tiān-náu ê hun-sò͘ bô-kāng ?

Tshiú-tsí kap tshiú-á ēng ê ki-jio̍k kap tōng-chok bô-kāng-khoán , chhiú-ki êng-bō͘ mā khah-sè. só͘-í Helibrain uân-á tshì-giām hun-khui kì chhiú-chí kap tshiú-á ê siōng-hó hun-sò͘, kiat-kó chí tī kāng-khoán su-ji̍p hong-sek lāi pí-kàu .

bô îⁿ kui , án-choáⁿ khuàⁿ tsuân-uân ê uân-á?

ēng bóe-cháiⁿ á-sī chhiú-oán chò ki tiám , chhiú kò͘-tēng tī tiong-sim , chn̄g choán chóa á-sī chhiú-pí. tô͘ chhiú khuàⁿ, ēng chéng chiah chhiú-pí kap pêng-kin sok-tō͘ khuàⁿ tōa ê uân-á. tī tshì-giām téng liān-si̍p , khoàⁿ soàⁿ ê si̍k-tsâi chai soàⁿ phian khì tó-uī.

Helibrain uân-á tshì-giām chin-chiàⁿ bián-chîⁿ bô?

Sī. Tshì-giām kap oân-chéng kiat-kó láng bián-chîⁿ : bián chù-chheh 、 bián tiān-chú-phoe 、 bián hù-khoán.Helibrain khò app choán-chîⁿ , app ū bián-hùi hong-àn kap hù hùi hong-àn ; beh chò tshì-giām m̄ bián-iōng app.

Siong-kuan ê tshì-giām

Khòaⁿ tsuân-pō͘ 43 hông-bîⁿ ê tāu-lāi tshì-giām

Nā beh ta̍k-ji̍t tsò tsit-ê? Helibrain app (hiān-tsāi iáu-koh sī Ióng-bûn) ū bô su-iàu tsînn ê kè-uē kap siu-tsînn ê kè-uē.

Ín-iōng chit ê bāng-ia̍h: Khuàⁿ chi̍t ê tsuân-uân. Helibrain. 2026. https://helibrain.com/nan/draw-a-perfect-circle. CC BY 4.0.

How this test works

This game tests how steady and even your hand is. Put your finger or the mouse button down and draw one circle around the dot in a single stroke. When you lift, we fit the best circle to your line and measure how far your line strays from it, on average. Your roundness score is 100% minus that average wobble, so a line that wobbles by 2% scores 98%. Motor-control labs have measured hand-drawn curves like this since the 1980s.

Version 1 · Cite this test:

Helibrain (2026). Draw a perfect circle, v1. https://helibrain.com/draw-a-perfect-circle/methods

Full method →

Tsu-liāu

  1. Sonnad N (2017). How do you draw a circle? We analyzed 100,000 drawings to show how culture shapes our instincts. Quartz, 15 June 2017 (analysis of Google's Quick, Draw! data). qz.com/994486/the-way-you-draw-circles-says-a-lot-about-you/
  2. Lacquaniti F, Terzuolo C, Viviani P (1983). The law relating the kinematic and figural aspects of drawing movements. Acta Psychologica 54(1–3):115–130. doi.org/10.1016/0001-6918(83)90027-6
  3. Höhle M (2018). Judging freehand circle drawing competitions. Blog post, 31 July 2018. mhoehle.github.io/blog/2018/07/31/circle.html
  4. Amenomori Y, Kono A, Fournier J, Winer GA (1997). A cross-cultural developmental study of directional asymmetries in circle drawing. Journal of Cross-Cultural Psychology 28(6):730–742. doi.org/10.1177/0022022197286005
  5. Fraser DS, Di Luca M, Cook JL (2025). Biological kinematics: a detailed review of the velocity-curvature power law calculation. Experimental Brain Research 243(5):107. doi.org/10.1007/s00221-025-07065-0
  6. Wikipedia. Alexander Overwijk. en.wikipedia.org/wiki/Alexander_Overwijk (checked 4 November 2026)
  7. Boake C, Salmon PG, Carbone CR (1983). Torque, lateral preference, and cognitive ability in primary-grade children. Journal of Abnormal Child Psychology 11(1):77–83. doi.org/10.1007/BF00912179
  8. Wang S, Schwirtlich T, et al. (2025). Clinical applications and measurement properties of the digitized Archimedes spiral drawing test: a scoping review. Movement Disorders Clinical Practice 12(11):1742–1755. doi.org/10.1002/mdc3.70278

Tsit-ê ia̍h-mn̂g án-tsuánn tsò--ê: Helibrain ê tiōng-tsèng ê lâng kàu-kòe siōng-bīn liáu-lia̍t ê gián-kiù lâi siá, koh tùi 11/4/2026 hō͘Robert(Ióng-bûn) (seng-bu̍t li̍k-ha̍k PhD tshù-pī-seng) kàu-kòe. Tsu-liāu ū kái-kòe ê sî, guán ē kā tsit-ê ia̍h-mn̂g kái-kòe.