 Moreover, it is possibly why individuals on Ritalin have a “need” and “desire” to learn as it acts as a positive reinforcer in the brain.In addition, this reward circuitry activation is most likely a reason why methylphenidate is highly addictive and carries great dependence.In conclusion, synaptic gating illustrates a plausible mechanism by which ADHD medication like Ritalin modulates synaptic activity and memory.