Episodic memory actually refers to the recollection of a personally experienced event and the context in which it occurred. It refers to the collection of one's experiences as they took place in particular periods of time and places.
Episodic memory is the memory that records all the events that take place everyday. It is a term that was coined by Endel Tulving in 1972.
Logrolling, which by definition is “the exchange of support or favors, especially by legislators for mutual political gain as by voting for each other's bills.”
Hippocampus is this part of the brain structure which is embedded deep in the temporal lobe of each cerebral cortex. It is an important part of the limbic system, a cortical region which regulates motivation, emotion, learning, and memory