List of Controlled Substances Disclaimer. Section 812 of the Controlled Substances Act (21 U.S.C. Â§801 et seq.) (CSA) lists substances which were controlled in 1970 when the law was enacted. Since then, approximately 160 substances have been added, removed, or transferred from one schedule to another.ubstances in this schedule have a high potential for abuse which may lead to severe psychological or physical dependence. Examples of Schedule II narcotics include: hydromorphone (DilaudidÂ®), methadone (DolophineÂ®), meperidine (DemerolÂ®), oxycodone (OxyContinÂ®, PercocetÂ®), and fentanyl (SublimazeÂ®, DuragesicÂ®).
Neuroplasticity is the brain's amazing capacity to change and adapt. It refers to the physiological changes in the brain that happen as the result of our interactions with our environment.europlasticity is the brain's amazing capacity to change and adapt. It refers to the physiological changes in the brain that happen as the result of our interactions with our environment.
The basic functional unit of the brain is the neuron, a special cell that sends electrochemical signals to other neurons (across a synaptic gap) and thereby creates those patterns that make up what we think of as the mind. The complexity of the task requires a fairly inconceivable 100 billion neurons, interconnected via trillions of synapses. A single firing neuron might communicate to thousands of others in a single moment. No computer comes close to the complexity of these communicating bits of organic matter. What's more, for each neuron there are some 10 to 50 glial cells providing structural support, protection, resources and more.