PSYCHOLOGY IN THE LANDSCAPE

In 1977 J.J. Gibson wrote of "the Theory of Affordances."  Essentially what this means as it relates to landscape design is that humans see “affordances” in the landscape – what a scene or object offers.  We react to a scene based upon what these objects or scenes offer as far as the individual is concerned. Perception is viewed as not merely dealing with information about the environment, but it’s possibilities as far as human interaction and purposes are concerned.

Later on, Rachel Kaplan and Stephen Kaplan (Professors at University of Michigan) theorized on people interaction with their environments.  “Humans react to the visual environment in essential two interrelated ways: the two dimensional pattern, as if the environment in front of them were a flat picture and the three dimensional pattern of space that unfolds before them.

They like the visual array to a photograph, the pattern of information with it, the shades of grey, simplicity of scene/detail and how it “makes sense” to the viewer. The pattern of information on the surface of a photograph can be easier or harder to organize.

Complexity reflects how much is going on in a scene, how much is there to look at, how rich and diverse the aesthetics/elements are.

George Seurat, Afternoon on the Isle of La Grande Jatte 1884

Coherence reflects the simplicity, organizational components of a scene, that which makes it easier to comprehend, it should all “fit together.”  In other words, “something that draws one’s attention within the scene should turn out to be an important object, a boundary between regions or some other significant property.

Hieronymus Bosch, Garden of Earthly Delights 1503-4

Research evidence also begins to suggest that the capacity of working memory for most people to hold approximately is five chunks/groupings of information in their working memory at any one time.  Kaplan therefore propose that dividing a scene into five major areas or groupings makes it easier or more appealing, comfortable in terms of coherence for the viewer of the scene.

Because landscapes are essentially three dimensional when viewed, but four dimensional with the addition of “time”, people interpret a landscape whether viewed or experienced as three-dimensional. In

Jay Appleton’s “Prospect-Refuge theory" there are “implications both in terms of informational opportunities and informational dangers.” Gathering these opportunities, having some comfort level with them is what leads to another component called Mystery. Mystery in this context is all about surprise and the promise/attraction assumed within the scene of new information. What encourages us to discover more.  A scene that is partially obscured by foliage, a path that is tempting to follow but you’re not sure where it leads. “A scene high in mystery is one in which one could learn more if one were to proceed further into the scene.”  “Mystery evokes curiosity.  What it evokes is not a blank state of mind but what might be coming next.”

W. Eugene Smith, The Walk to Paradise 1946

Appleton stresses safety in Prospect-Refuge theory.  Kaplan takes it one step further in his last component to one that “makes sense” or is legible.  “Legibility” entails a promise or a prediction.

” It allows the viewer to assume a way to navigate through the space and out of it, an organization of the ground plane.  With a sense of depth and well-defined space, smooth textures and elements well distributed, the viewer is comfortable moving within the space.

Concepts to ponder when designing space.

Preference Matrix by Kaplan above.

1. The Experience of Nature: A Psychological Perspective: Rachel & Stephen Kaplan, University of Cambridge 1989

2. Ibid

3. Ibid

4. Ibid

LANDSCAPE EDGES

Edges in landscape are everywhere,.. overly common, yet at times incidental.  Each landscape space offers different programming, functions or physical characteristics. At the boundary of each space is an edge...these are the transitional spaces from one landscape or space to the next (i.e.: the entrance into a city park, the bridge to a connecting highway, the riparian zone linking biota).

Landscape edges are transitional linear places where one space or landscape becomes part of another. Often neglected in design, edges are considered primary structural components of landscapes because of their integration and social functions.1  They offer not only physical change, but emotional and psychological transitions as well.

Edges can be where the picturesque meets the pastoral, built meets unbuilt, city meets country. Woodlands edges, wetlands, beach fronts are considered strong edges, and can also be referred to as "ecotones" - physical transition zones between two ecological systems.  These edges and corridors strongly influence landscape biodiversity, and in many situations when designing them -- the suggestion is that the "lightest hand" is the hand that designs best.

 Delphi Theatre/ toursofathens.com

Some edges are purely physical (a building meeting terra firma) while others are visual and symbolic (earth or sea meeting sky). Some edges are abrupt while others are smoothly drawn out and richly complex (i.e.: a woodland edge, a waterfront).

New Jersey Meadowlands/flicker.com

As an urban dweller, I am most cognizant of the juxtaposition between two systems that are forced to co-exist within a city- the built form and the natural form.  John Motloch, speaks of the "dynamic nature of natural systems versus the static nature of architecture." Natural systems are point-in-time expressions of ongoing environmental processes: site and living organisms continually experience change.  Conversely, architecture consists of relatively static elements.  Architecture changes little over time. Buildings do change expression - from transparent, to reflective, to opaque - from day to night. Plant materials, on the other hand are living organisms and mature over time.  Even senility in the landscape can be one of the most sensual aspects of landscape design."2

Within these edges are "thresholds"*, uniquely centered entities within the linear form of an edge.  The Collins English Dictionary defines threshold as “the starting point of an experience, event or venture; a psychological point at which something would happen or would cease to happen, or stimuli would take effect.” 

These thresholds provide tremendous opportunities for designers to create gateways within them and experiential transitions within that journey.  "A gateway denotes a threshold, a place of passage, a garden gate that opens and closes, a bridge point of entry into a city, a harbor of access to some hinterland. A gateway can have many forms, a literal gate, an avenue of trees, an entrance into a building... yet they all have the same function --to mark the point where a path crosses a boundary and help maintain the boundary.  All of them are 'things' - not merely holes or gaps, but solid entities.  In every case, the crucial feeling this solid thing must create is the feeling of transition."3

Central Park, lookout point as a threshold

Saarinen's Gateway Arch.  

St. Louis on the edge of the Mississippi River is known as the "Gateway to the West"

Edges are also topographic.  Perhaps simple and smooth with gradients and rhythmic sequences or textural and rugged, spurred, ditched and jagged, natural or built with sub-spaces or steps.  Of particular note on a grand scale is the Isthmus of Panama - a narrow strip of land where geological tectonic plates meet, the landscape changes often and dramatically.  It became a major inspiration for Frederick Law Olmsted in developing an aesthetic for public parks as he crossed it in 1863.

1. Form and Fabric in Landscape Architecture; Catherine Dee.

2. Introduction to Landscape Design; John Motloch

3. A Pattern Language: Alexander/Ishikawa/Silverstein.