PSYCH261 Lecture Notes - Lecture 9: Nucleus Accumbens, Axoplasmic Transport, Neuromuscular Junction

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH261
• Professor: Daniel Smilek

Document Summary

48 mc questions and a choice between 2 short answer questions. For the short answer questions, it ll be key concepts. Antagonist substances that will prevent the normal action of the neurotransmitter at the synapse. Agonist facilitates the normal action of the neurotransmitter at the synapse. You can increase your dietary choline which will allow for more for release. Curare blocks so it is an antagonist blocks the receptors so the neurotransmitter cannot have its effect. There is some evidence that this toxin can be spread through retrograde axoplasmic transport. In most cases, whenever you start taking a drug, you have to take more and more because you end up developing a tolerance. This is because the body is homeostatic whenever this is perturbed in some way, there will be a compensatory system bringing it back to equilibrium. The reason why heroin is having an effect is because it mimics the effect of internal chemicals endorphins.