For example, Stephen Palmer carried out an experiment in which the participants were asked to identify objects after they were shown either a relevant or irrelevant context.
Perceptual constancy gives evidence that high-level constructive processes occur during perception.
Even when there is not enough light to even stimulate cone cells and give the sensation of color, bananas and cherries are still perceived as yellow and red, respectively.
In another condition, an L-shaped fixed context is added; this creates three triangles and another object made of three lines.
A theory on how perception can be constructed in the nervous system is based on the cybernetic mechanisms of anapoiesis, which means re-creation.
As a physiological mechanism, reconstructive perception has been proposed to be a function of metabotropic receptors and G protein-gated ion channels, which are hypothesised to temporality rewire neural networks.