In the operant conditioning paradigm, extinction refers to the process of no longer providing the reinforcement that has been maintaining a behavior. Operant extinction differs from forgetting in that the latter refers to a decrease in the strength of a behavior over time when it has not been emitted.
Gel medium is an acrylic product. It comes in Heavy, Soft, and Regular and has a variety of finishes, Matte, Gloss and Semi-gloss. The basic use for these is to build texture in paintings by mixing them with acrylic paint. If you add a small bit of it to your paint it will also extend the drying time. The Soft gel is the medium that is most often used by paper artists. It can be used as a glue for collage and it is also used to make photocopy transfers.
A medium is what ever you are making your piece of art out of. Such  as: paper for a painting, clay for a clay bowl, wall or ceiling for  a mural, etc. A medium in art is an â¦ object or item used to make the piece of art  that you are making.For example, if I drew a picture of a house,  with some crayons, a pencil, and markers, the medium for that piece  of art would be the pencil, the crayons, and the markers.+ 57 others found this useful. Danica Manlangit.uch  as: paper for a painting, clay for a clay bowl, wall or ceiling for  a mural, etc. A medium in art is an â¦ object or item used to make the piece of art  that you are making.