GESTALT

GESTALT

Gestalt is a psychology term which means "unified whole". It refers to theories of visual perception developed by German psychologists in the 1920s. These theories attempt to describe how people tend to organize visual elements into groups or unified wholes when certain principles are applied.

Gestalt theory discusses how we perceive objects in our environment. It discusses the difference between figure and ground and examines how various principles help us to decide which is figure and which is ground.

Gestalt is also known as the "Law of Simplicity" or the "Law of Pragnanz" (the entire figure or configuration), which states that every stimulus is perceived in its most simple

form

Gestalt theorists followed the basic principle that the whole is greater than the sum of its parts.

In other words, the whole (a picture, a car) carried a different and altogether

greater meaning than its individual components (paint, canvas, brush; or tire, paint, metal, respectively). In viewing the "whole,"

a cognitive process takes place –

the mind makes a leap from comprehending the parts to realizing the whole,

We visually and psychologically attempt to make order out of chaos,

to create harmony or structure from seemingly disconnected bits of information.

Gestalt Principles

1. Figure/Ground

This principle shows our perceptual tendency to separate whole figures from their

backgrounds based on one or more

of a number of possible variables, such as contrast, color, size, etc.

A simple composition may have only one figure. In a complex composition there will be several

things to notice. As we look from one to another they each become figure in turn.

The focus at any moment is the figure.

M. C. Escher Sky and Water 1 1938

Henri de Toulouse-Lautrec Everything that is not figure is ground. As our attention shifts, the ground also shifts so that an object can go from figure to ground and then back.Ground is sometimes thought of as background or negative space. Figure-ground refers to the relationship between an object and its surround. Sometimes the relationship is stable, meaning that it is easy to pick out the figure from the ground. 

Henri MatisseLa Danse (I)1909

La Musique 1910, Dance (II) Dance (II) 1910

Other times the relationship is unstable, meaning it is difficult to pick out the figure from the ground. Rarely, the relationship is ambiguous, meaning that the figure could be the ground or vice-versa.

CamouflageCamouflage is the deliberate alteration of figure-ground so that the figure blends into the ground.

Camouflage material may have a single color, or it may have several similarly colored patches mixed together. The reason for using this sort of pattern is that it is visually disruptive. The meandering lines of the mottled camouflage pattern help hide the contour -- the outline -- of the body.

W

hen you look at a piece of mottled camouflage in a matching environment, your brain naturally "connects" the lines of the colored blotches with the lines of the trees, ground, leaves and shadows. This affects the way you perceive and recognize the person or object wearing that camouflage. 

2.  Similarity

Gestalt theory states that things which share visual characteristics such as shape, size, color, texture, or value will be seen as belonging together in the viewer’s mind. t

In the graphic below, the viewer is likely to discern a shape in the middle, though each individual object is the same color.

• Repetition of forms or colors in a composition is pleasing in much the same way rhythm is pleasing in music the forms

aren't necessarily identical - there may be tremendous variety within the repetition, yet the correspondence will still be discernable. • Like static and dynamic tension a deliberate use of similarity in composition can impart meaning to the viewer that is independent of the subj ect matter of the image

• Similarity or repetition in an image often has connotations of harmony and interrelatedness, or rhythm and movement.

Répétition d'un Ballet. 1874

Carol Golemboski

3.  Proximity

The Gestalt law of proximity states that "objects or shapes that are close to one another appear to form groups". Even if the shapes, sizes, and objects are radically different, they will appear as a group if they are close together.

• refers to the way smaller elements are "massed" in a composition.

Bill Brandt

• Also called "grouping," the principle concerns the effect generated when the collective presence of the set of elements becomes more meaningful than their presence as separate elements.

Arnold Newman

• Arranging words into sentences or titles is an obvious way to group unrelated elements to enhance their meaning (it also depends on a correct order for comprehension).

• Grouping the words also changes the visual and psychological meaning of the composition in non-verbal ways unrelated to their meaning. • Elements which are grouped together create the illusion of shapes or planes in space, even if the elements are not touching

• Grouping of this sort can be achieved with: •Tone / value •Color •Shape •Size •Or other physical attributes

4.  Closure The satisfaction of a pattern encoded, as it were, into the brain, thus triggering recognition of the stimulus. This can involve the brain's provision of missing details thought to be a part of a potential pattern, or, once closure Is achieved, the elimination of details unnecessary to establish a pattern match. •Closure is the effect of suggesting a visual connection or continuity between sets •of elements which do not •actually touch each other in a composition. •The principle of closure applies when we tend to see complete figures even when •part of the information is missing. • Closure occurs when elements in a composition are aligned in such a way that• the viewer perceives t•hat "the information could be connected."

Kanizsa Illusion

• Imaginary lines called vectors, or shapes called counter forms, are generated by these relationships, which the eye understands as part of the composition even though there is "nothing there. • Vectors and counter forms exert forces and tensions that are as real in defining its underlying structure as the elements that are visible. • Linear vectors direct the path of the eye through the composition and determine where the eye will go once it is attracted by the prominent features of the composition. • A vector can be straight or curved, depending on the relationships that form it. • Counter forms, (or negative spaces), determine to a great extent whether or not the composition will be perceived as a harmonious whole. Counter forms "echo" the positive visual elements with "similarity," or create powerful substructures that support and connect visible elements.

• Closure can be thought of as the tension or "glue" that holds a two-dimensional structure together.

5.  Good Continuation (Continuity) This Gestalt law states that learners "tend to continue shapes beyond their ending points". The edge of one shape will continue into the space and meet up with other shapes or the edge of the picture plane. The example below illustrates that learners are more apt to follow the direction of an established pattern rather than deviate from it.  We perceive the figure as two crossed lines instead of 4 lines meeting at the center.

Continuity in the form of a line, an edge, or a direction from one form to another creates a fluid connection among compositional parts.

In Degas' drawing the line of the round tub starts at the bather's hairline, meets her fingertips, and joins the vertical line of the shelf where the brush handle overlaps. The circular shape of the bather's hips is tangential to the same shelf edge. The objects on the shelf barely touch and carry the eye from one to another.

Edgar Degas, The Tub, 1886. Paste

6.  Symmetry or OrderSymmetry states that the viewer should not be given the impression that something is out of balance, or missing, or wrong.  If an object is asymmetrical, the viewer will waste time trying to find the problem instead of concentrating on the instruction. • Order has connotations of stability, consistency and structure. • An orderly arrangement of elements has connotations that will be perceived either positively or negatively by a viewer depending on the purpose of the communication and the viewer's personality. • Utilitarian information (instructional or technical design) will be more effective if the presentation is orderly, especially if it must be comprehended quickly. •traffic signs •sets of instructions •reference books • Texts and illustrative material may also need to be orderly; especially if the organization sponsoring the communication wishes to be perceived as orderly and well run (annual reports are typically clean, orderly documents). • People are accustomed to receiving information in a systematic and organized manner and will be frustrated by material that requires too much work to comprehend. • Some viewers associate order with institutional rigidity or social conservatism and will reject or be "bored" by communications that seem too highly structured.