Practice Quotes
500+ Sourced quotes
CREB's opposing regulatory actions provide a threshold for memory storage, presumably to ensure that only important, life-serving experiences are learned. Repeated shocks to the tail are a significant learning experience for an Aplysia, just as, say, practicing the piano or conjugating French verbs are to us: practice makes perfect, repetition is necessary for long-term memory. In principle, however, a highly emotional state... could bypass the normal restraints on long-term memory. In such a situation, enough MAP kinase molecules would be sent into the nucleus rapidly enough to inactivate all of the CREB-2 molecules, thereby making it easy for protein kinase A to activate CREB-1 and put the experience directly into long-term memory. As painters, men well taught by wisdom in the practice of their art, decorate temple offerings they take in their hands pigments of various colours, and after fitting them in close combination, more of some and less of others, they produce from them shapes resembling all things, creating trees and men and women, animals and birds and water-nourished fish, and long-lived gods too, highest in honour; so let not error convince you in your mind that there is any other source for the countless perishables that are seen, but know this clearly, since the discourse you have heard is from a god.