Concerning Camouflage, Human Perception and Ghillie Suit:

The perception of objects and shapes is determinated by the mental organization of environment elements, employed by the brain.

The human brain is led to perceive shapes and figures in contrast with the background, due to an automatic, innate mechanism that defines the laws of human perception. The Ghillie Suit works extremely well in natural environments, as it breaks the human shape and interferes with the innate perception mechanism of environment reconstruction.

The Ghillie Suit's effectiveness can be scientifically explained by Gestalt, one of the major schools and approaches of experimental Psychology. Gestaltists postulate that perception is the product of complex interactions among various stimuli through which the mind creates a self-organized "Global Whole". This self-organized "Global Whole" is affected by several specific laws of human perception, that can help explain why and how Ghillie Suits work. It is worth mentioning the fundamental principle of Gestalt perception:

- Law of Emergence: also known as the Law of Prägnanz or Law of Good Gestalt, it states that perception of an object from the background depends on its relevance, namely, the contrast between the objects and the background. When contrast is minimal the figure does not emerge from the background- this is the first variable of camouflage. Using a Ghillie with the same colouring as the surrounding environment thus significantly reduces emergence, increasing camouflage, as the object is perceived as a part of a whole, at one with the environment. 

Other laws work with the Law of Emergence: 

- the Law of Similarity: the elements within an assortment of elements are perceptually grouped and merged together into a "Global Whole", if they are similar enough. That's why, by emulating the colouring and the caotic shapes of nature, the Ghillie Suit blends almost perfectly into its surroundings, and is perceived by the mind as a natural part of the environment. Rafia and Sisal effectiveness is a clear example of this.

- the Law of Continuity: Elements tend to be grouped together and integrated into a perceptual "Global Whole" if they are aligned within an object or another element (such as a bush or a tree). This is what takes place when using a Ghillie to hide near a bush, on the ground in the grass or near dead leaves.

Therefore, the Gestalt Psychological approach to human perception helps understand why and how Ghillie Suits work within the environment, and can provide remarkable insight into the best way to conceal oneself with a Ghillie suit.

A more direct example of how we drive our approach based on the Cognitive laws of Human Perception:

In the below picture there are 3 samples: a ProApto Greenzone Pattern made using only Rafia, a ProApto sample of Green Jute (the same of the Jute version of our Greenzone Pattern) and a sample of green fake leaves, commonly used to build or modify Leaf-suits (also definied as 3D ghillies or ghillie leaf-suits, stuff like that).

Which is the best solution to get concealed? Rafia, fake leaves or Jute? Some people believe that ghillie leaf-suits are superior compared to Ghilles made in Jute or Rafia. We do not believe that, we believe that Jute is practically the best material.

The reson is merely scientific, based on how humans perceive shapes. A wide shape among thin shapes will be perceived more easily than a thin shape among thin shapes (Gestalt Psychology - Law of Emergence and Law of Similarity).

So, under a versatility point of view, a leaf-suit (in general wide shapes) will be very effective in environments characterised by wide shapes (as dead leaves), but in grassy areas it could has concealment problems. On the other hand, a full Rafia Ghillie (thin shapes) will works extremely well in grassy environments, but in wide leaves areas as woods, it could has concealment issues.

Jute is the intermediate step. Its thin wires makes bunches of irregular shapes. And this is a double concealment feature both in micro and macro. Jute is the intermediate step between wide shapes and thin shapes, for that reason it will be a solid base to get concealed, mostly while changing environments, ensuring an adaptable versatility that other material can not provide. For sure Jute will not work well as leaf-suit in a wide leaves environment, and neither as a full Rafia Ghillie in a grassy environments, but it is the best versatile compromise to get concealed.

The below picture is a resume of a "mixed" environment, wide shapes and thin shapes, check out how the above 3 different materials are working. 

Here below a brief video example of Jute versatility in different areas. In the following video the same Ghillie was used to cover 13km of distance from 1200mt to 2500mt. 

For futher information below there are some scientific references:

Wagemans J., Elder J.H., Kubovy M., Palmer S.E., Peterson M.A., Singh M., von der Heydt R., A Century of Gestalt Psychology in Visual Perception I. Perceptual Grouping and Figure-Ground Organization. Psycholical Bullettin. 2012 November; 138(6): 1172-1217.

James J. Gibson, The Ecological Approach to Visual Perception. Psychology Press, 1986 by Taylor & Francis Group LLC.

Useful Link

Useful Links for people without a scientific background in Psychology/Neuropsychology