Concept art. Concept art is a form of illustration used to convey an idea for use in films, video games, animation, comic books, or other media before it is put into the final product. Concept art is also referred to as visual development and/or concept design.
The term âpsychoactive substancesâ includes all substances that affect the brainânot only legal, non-prescription drugs such as alcool and tobacco) and illegal drugs such as cannabis and heroin), but also prescription medications such as Valium and other tranquilizers and Prozac and other antidepressants.
1 Neurotransmitters-The Brain's Chemical Messengers. 2  The messages are typically carried between neurons by chemicals called neurotransmitters. 3  Receptors-The Brain's Chemical Receivers. 4  The neurotransmitter attaches to a specialized site on the receiving neuron called a receptor.ther drugs, such as amphetamine or cocaine, can cause the neurons to release abnormally large amounts of natural neurotransmitters or prevent the normal recycling of these brain chemicals. This disruption produces a greatly amplified message, ultimately disrupting communication channels.