CREB's opposing regulatory actions provide a threshold for memory storage, presumably to ensure that only important, life-serving experiences are lea… - Eric Kandel
" "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.
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About Eric Kandel
Eric Richard Kandel (born November 7, 1929) is an Austrian-American neuropsychiatrist and recipient of the 2000 Nobel Prize in Physiology or Medicine, shared with Arvid Carlsson and Paul Greengard. His research entails the physiological basis of memory storage in neurons.
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Unlike vision, touch, or smell, which are prewired and based on Kantian a priori knowledge, the spatial map presents us with a new type of representation, one based on a combination of a priori knowledge and learning. The general capability for forming spatial maps is built into the mind, but the particular map is not. Unlike neurons in a sensory system, place cells are not switched on by sensory stimulation. Their collective activity represents the location where the animal thinks it is.
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