A microscale is a small scale, usually used in science or engineering. It's usually easier to understand something at a microscale than at a macroscale.
Neurotransmitters are chemicals that are responsible for communication between the different parts of the brain. They are involved in everything from moods to emotions to memory.
When something is blunted, it is reduced or decreased in intensity. A blunt object is usually not very effective at hurting someone, because it doesn't have a sharp edge.
Neuroscientists are scientists who study the brain. They are often interested in understanding how the brain works, and how different parts of the brain work together.
Electroconvulsive therapy (ECT) is a type of treatment that uses electric shocks to treat mental disorders. ECT is usually used in combination with other treatments, such as medication and therapy.
Un insurmountable obstacle is something that is too difficult or too difficult to overcome. It's impossible to win against an insurmountable enemy.