A demonstration of the fluttering heart illusion (Helmholtz)

since February 14, 2013




"Fluttering red hearts in front of the blue background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (January 18)




"Fluttering red hearts in front of the blue background 2"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 6)




"Fluttering red hearts in front of the green background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (January 21)




"Fluttering red hearts in front of the red-purple background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (January 16)




"Fluttering pink hearts in front of the green background"

*Here, pink means magenta.

Hearts appear to move when the image is moved or your pair of glasses are moved.

Copyright Akiyoshi Kitaoka 2013 (January 26)




"Fluttering red hearts in front of the blue background 3"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 15)




"Fluttering blue hearts in front of the dark-red background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (January 28)




"Fluttering sky-blue hearts in front of the red background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (January 30)




"Fluttering pink hearts in front of the cyan background"

*Here, pink means magenta.

Hearts appear to move when the image is moved or your pair of glasses are moved.

Copyright Akiyoshi Kitaoka 2013 (February 14)




"Fluttering red hearts in front of the dark-yellow background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 14)




"Fluttering blue hearts in front of the dark-green background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 14)




"Fluttering green hearts in front of the red background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 15)




"Fluttering dark-yellow hearts in front of the red background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 15)




"Fluttering green hearts in front of the pink background"

*Here, pink means magenta.

Hearts appear to move when the image is moved or your pair of glasses are moved.

Copyright Akiyoshi Kitaoka 2013 (February 15)




"Fluttering dark-yellow hearts in front of the blue background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 15)




"Fluttering yellow hearts in front of the light-cyan background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 15)




"Fluttering red hearts with pink contours in front of the blue background"

Hearts appear to move when the image is moved or your pair of glasses are moved. This illusion is enhanced in a dark condition or in the mesopic vision.

Copyright Akiyoshi Kitaoka 2013 (February 15)



cf.


"Fluttering black hearts in front of the dark-gray background"

Hearts appear to move when the image is moved or your pair of glasses are moved.

Copyright Akiyoshi Kitaoka 2013 (February 14)



cf.


"Photophilic fluttering red hearts in front of the blue background"

Hearts appear to move when the image is moved or your pair of glasses are moved.

Copyright Akiyoshi Kitaoka 2013 (February 14)



"Photophilic fluttering dark-gray hearts in front of the black background"

Hearts appear to move when the image is moved or your pair of glasses are moved.

Copyright Akiyoshi Kitaoka 2013 (February 14)


References

Helmholtz, H. von (1856, 1860, 1866, 1867) Handbuch der Physiologischen Optik. Leipzig: Voss. Part I (1856), Part II (1860), Part III (1866). The first two parts were published in the same volume as the third part in 1866. This was called the first edition according to Robinson (1972). In many case, “1867” is preferred for citation as follows. Helmholtz, H. von. (1867). Handbuch der physiologischen Optik. Leipzig: Voss. Translated by J P C Southall of the third German edition (1909-1911) was published as Treatise on Physiological Optics, New York: Dover (1924-1925, 1962). Edited by N. Wade, Helmholtz's Treatise on Physiological Optics, Bristol: Thoemmes (2000). The following information was taken from Wade (2004).

Helmholtz H, 1867 "Handbuch der physiologischen Optik", in Allgemeine Encyklopädie der Physik volume 9, Ed. G Karsten (Leipzig: Voss)
Helmholtz H, 1896 Handbuch der physiologischen Optik 2nd edition (Hamburg: Voss)
Helmholtz H, 1909 Handbuch der physiologischen Optik volume 1, 3rd edition, Eds A Gullstrand, J von Kries, W Nagel (Hamburg: Voss)
Helmholtz H, 1910 Handbuch der physiologischen Optik volume 3, 3rd edition, Eds A Gullstrand, J von Kries, W Nagel (Hamburg: Voss)
Helmholtz H, 1911 Handbuch der physiologischen Optik volume 2, 3rd edition, Eds A Gullstrand, J von Kries, W Nagel (Hamburg: Voss)
Helmholtz H, 1924 Helmholtz's Treatise on Physiological Optics volume 1, translated by J P C Southall (New York: Optical Society of America)
Helmholtz H, 1925 Helmholtz's Treatise on Physiological Optics volume 2, translated by J P C Southall (New York: Optical Society of America)
Helmholtz H, 1925 Helmholtz's Treatise on Physiological Optics volume 3, translated by J P C Southall (New York: Optical Society of America)
Helmholtz H, 2000 Helmholtz's Treatise on Physiological Optics (3 volumes) translated by J P C Southall (Bristol: Thoemmes)


Kitaoka, A. and Ashida, H. (2007). A variant of the anomalous motion illusion based upon contrast and visual latency. Perception, 36, 1019-1035.


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