Perception Collection

Sensory homunculus
This model shows what a mans body would look like if each part grew in proportion to the area of the cortex of the brain concerned with its sensory perception

Rorschach Inkblot Test
Inkblot test cards from a set of ten cards used in the Rorschach test. The subjects perceptions of the inkblots are recorded.This information is analyzed

Hollow-face illusion, artwork
Hollow-face illusion, computer artwork. This is an optical illusion where the perception of a concave (hollow) mask of a face appears as a normal convex (protruding) face

Phrenological Head / Scrap
A phrenological head, showing the different categoies of the brain which should exist in healthy humans. These include self perceptive, aspiring and animal morals

Hollow-face illusion, artwork
Hollow-face illusion, computer artwork. This is an optical illusion where the perception of a concave (hollow) mask of a face appears as a normal convex (protruding) face

Diagram of inner ear showing auditory canal, eardrum, semicircular canals, cochlea, cochlea nerve, eustachian tube

George Berkeley, Irish philosopher
George Berkeley (1685-1753), Irish philosopher and Bishop of Cloyne (appointed 1734). Berkeley is famous for his philosophical theory concerning the perception of sensations and ideas

Rorschach Inkblot Test
Psychological testing of a woman using one of the Rorschach Test inkblot cards. The subjects perceptions of the inkblots are recorded.This information is analyzed

Goblet illusion. This image is simultaneously a drawing of a goblet and two faces. When there are two competing interpretations of an ambiguous image the brain will often switch between them

Penrose stairs, artwork
Penrose stairs, computer artwork. This is an impossible figure created by the physicist Roger Penrose and used by M C Escher in his illustration Ascending and Descending

Ouchi illusion. The central circular area of perpendicularly orientated bars appears to move and float compared to the surrounding pattern

Impossible triangle, artwork
Impossible triangle, computer artwork. This is an impossible figure created by the physicist Roger Penrose. Impossible figures are objects that can be drawn but not created

Penrose stairs, artwork
Penrose stairs. Computer artwork of Einstein characters climbing a set of Penrose stairs. This is an impossible figure created by the physicist Roger Penrose

Array of Necker cubes. A Necker cube is a wireframe drawing of a cube which could be interpreted as being orientated in two different ways

The Two Young Girls - The Beautiful Rosine by Antoine Wiertz
Reproduction of the painting The Two Young Girls or The Beautiful Rosine by Antoine Wiertz (1806-1865). A pretty girl confronts her stark (and dead)

Wundt illusion. This illusion was created by the psychologist Willhelm Wundt in the 19th century. It is the exact opposite of the Hering illusion

Ponzos illusion. The vertical red line to the left of the image appears to be smaller than the one to the right. In fact they are the same length

Planet earth as perceived by Cosmas, with walls on either side of the Heavens, a transparent firmament, a reservoir of waters above the planet, and above them the Empyrean vault

Artist Painting a Nude Woman: Allegory of Visual Perception, 1616. Creator: Jan Saenredam
Artist Painting a Nude Woman: Allegory of Visual Perception, 1616

Artist Painting a Nude Woman: Allegory of Visual Perception, 1616. Creator: Jan Saenredam
Artist Painting a Nude Woman: Allegory of Visual Perception, 1616

Opening a safe by mind reading (via involuntary muscle movement) Date: 1900

The irradiation illusion of visual perception in which a light area of the visual field looks larger than an otherwise
955301 The irradiation illusion of visual perception in which a light area of the visual field looks larger than an otherwise identical dark area

The Zollner illusion. Parallel lines crossed by another short row of lines inclined at an angle will appear to slant in
955300 The Zollner illusion. Parallel lines crossed by another short row of lines inclined at an angle will appear to slant in the direction in which the lines are falling

DDE-90037250
Diamondback Rattlesnake (Crotalus atrox), adult, Hidalgo County, south Texas, USA, coiled and shaking rattles, testing (tasting) air with tongue Date: 17/02/2005

Comic Postcard - Improvements on Nature - Hair and Make-up (rouge, enamel, violet powder)
Comic Postcard - Improvements on Nature - Hair and Make-up (rouge, enamel, violet powder, a corset and a wig) - everything needed to transform ones appearance.. Date: 1910

Platos Cave (engraving) (later colouration)
CHT209224 Platos Cave (engraving) (later colouration) by French School, (16th century); Bibliotheque Nationale, Paris, France; (add.info)

Illustration from "La Geometrie Pratique"1702, (engraving)
937189 Illustration from " La Geometrie Pratique" 1702, (engraving) by Mallet, Alain Manesson (1630-1706); Private Collection; (add.info)

Expressions de la Physionomie, Indiquees avec la plus grande simplicite (engraving)
3646093 Expressions de la Physionomie, Indiquees avec la plus grande simplicite (engraving) by French School, (19th century); Private Collection; (add.info.: Expressions de la Physionomie)

Comment on voit le resultat d un combat en Extreme-Orient apres lecture d une depeche japonaise
3097804 Comment on voit le resultat d un combat en Extreme-Orient apres lecture d une depeche japonaise, Comment on le voit quand arrive peu apres la depeche officielle russe (colour litho)

Illustration from "La Geometrie Pratique"1702, (engraving)
937190 Illustration from " La Geometrie Pratique" 1702, (engraving) by Mallet, Alain Manesson (1630-1706); Private Collection; (add.info)

Photograph of a drop in the act of falling (engraving)
3621269 Photograph of a drop in the act of falling (engraving) by English School, (19th century); Private Collection; (add.info.: Photograph of a drop in the act of falling)

Kuda Bux and one of his experiments
Undated photograph of Kuda Bux and one of his experiments with " eyeless sight" : with head bandaged, he is duplicating shorthand characters drawn on a blackboard by Lucie Kay

Trees in relationship
Vine roots after harvest and before pruning. The imaginative eye may see these plants as dancing, conversing or squabbling

Close-up of a Eurasian lynx (Lynx lynx) snarling on a snowy winter day, Bavaria, Germany

Close-Up profile of Eurasian brown bear (Ursus arctos arctos) in the Bavarian Forest, Bavaria, Germany

Siberian tiger (Panthera tigris altaica) mother with her cub in a Zoo, Germany

Side View of One White Birman Kitten Looking Up Outdoors Standing on Grass

Herd of cows grazing in pasture with the late afternoon sun shining over the fields at Le Markstein in the Vosges Mountains in Haut Rhin, Alsace, France

Close-up portrait of a European grey wolf (canis lupus) in winter, Bavarian Forest, Bavaria, Germany

Close-up portrait of a Eurasian lynx (Lynx lynx) on a snowy winter day, Bavarian Forest, Bavaria, Germany

The Z

The Irradiation Illusion Of Visual Perception In Which A Light Area Of The Visual Field Looks Larger Than An Otherwise Identical Dark Area

Waterfalls, During The Autumn, Glenoe Co Antrim

Ugliness and Beauty from The Complete Works of Beranger, 1836

Sensory homunculus C017 / 6826
Model of a sensory homunculus. Parts of the body are sized according to how much space the brain gives to processing sensory information about that part of the body

Ehrenstein illusion, square in circles
Ehrensteins illusion - a square in concentric circles. This is one of a number of illusions studied by Walter Ehrenstein. The sides of a square placed inside concentric circles appear to curve

Light and shade
Three Leonardo da Vinci sketches to illustrate linear perspective and light and shade.The upper diagram shows the light from three luminous bodies being projected on to a surface after passing

ESP, sending and receiving a telepathic message Date: 1900

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"Perception: Unveiling the Intricate Tapestry of Our Minds" Step into a world where reality dances with illusion, and perception reigns supreme. From the enigmatic Rorschach Inkblot Test to the captivating Sensory Homunculus, our minds unravel mysteries hidden within. Behold the Phrenological Head, a scrap of history that once sought to map our thoughts onto physical contours. Yet, it reminds us that perception is not confined to mere anatomy but extends beyond tangible boundaries. Marvel at the Hollow-Face Illusion artwork, where faces deceive as they appear convex instead of concave. It challenges our visual senses and beckons us to question what we truly see. Delve into the intricate diagram of the inner ear, revealing its auditory canal, eardrum, semicircular canals – conduits for balance – cochlea nerve and eustachian tube. Perception intertwines with sound as vibrations transform into meaningful melodies within our minds. Witness George Berkeley's wisdom unfold before your eyes; this Irish philosopher questioned whether objects exist without being perceived. He invites us to ponder how much of reality lies in our own perceptions. Return to the mesmerizing Rorschach Inkblot Test; ink patterns mirror fragments of ourselves back at us. They become mirrors through which we explore our innermost thoughts and emotions. Challenge your senses with the Goblet Illusion; two profiles merge seamlessly into one chalice or vice versa. It showcases how they are shift effortlessly between multiple interpretations. Ascend Penrose Stairs' artistic creation; an optical paradox defying logic as steps lead endlessly upwards or downwards in an impossible loop. Perception confronts reason here, urging us to question what seems impossible yet appears so real. Encounter Ouchi Illusion's unsettling embrace; hands intertwine in a disconcerting manner challenging spatial awareness itself. Our brains grapple with conflicting signals from sight and touch - perception becomes a battleground. Finally, gaze upon the Impossible Triangle artwork.