Concerning Camouflage, Human Perception and Ghillie Suit:

The perception of objects and shapes is determinated by the mental organisation 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, since it breaks the human shape and interferes with the innate perception mechanism of environment reconstruction recognising human silhouette. This is an evolutionary component developed by several species particularly among hunting and social species like homo sapiens.

The Ghillie Suit's effectiveness can be scientifically explained by Gestalt, one of the major schools and approaches of experimental Psychology empirically explaining human cognitive functioning particularly regarding sensation and perception. Gestaltists postulate that perception is the product of complex interactions among various stimuli through which the mind creates a self-organised "Global Whole". This self-organised "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 works within the environment, and can provide remarkable insight into the best way to conceal oneself using 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 reason is merely scientific, based on how humans perceive shapes. A wide/broad 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). This because its different morphology and its larger portion of the visual space occupied that make it more easily detectable in contrast with the background. 

Therefore, under a versatility point of view, a leaf-suit (in general wide/broad shapes) will be very effective in environments characterised by wide shapes (as broad-leaved woods), but in grassy areas it would become not effective leading to concealment issues. On the other hand, a full Rafia Ghillie (thin shapes) will works extremely well in grassy environments, but in broad-leaved environment as a deciduous woods, it could lead to the same concealment issues. However A Ghillie made of Rafia will be always more adaptable than a leaf-suits because grass is more common the leaves and humans (and other species as well) evolutionary speaking are more used to see grass than a maple leaf. Grass is highly pervasive and "thin shapes" as sticks and dry grass characterise any environment (except deserts and glacial areas).

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. 

Jute is the intermediate step between thin and broad shapes. 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 and 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 broad-leaved environment, and neither as a full Rafia Ghillie in a grassy environments, but it is the best versatile compromise to get concealed while covering large distances or just across seasons. 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 clear evidence of what is written above. The following video is about Jute versatility across a transition of 21 kilometers in 3 different environments gaining +900mt of altitude. This was made while comparing 5 different Ghillie Camouflage Patterns and comparing Jute Ghillies with a Full-Rafia Ghillie Suit and with a Leaf-Suit.


Adaptability of ProApto Ghillie Suits across different areas. The key component of a successful camouflage system is the adaptability across multiple environments. Few scientific guidelines from the Science of Human Neuropsychological perception of colours and shapes can be useful to clarify the conceptual and the practical approach behind the effective concealment capabilites of our product's design.

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.

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