Generalization & Specificity as conflicting goals
Generalization: detection of regularities across repeated exposures to similar experiences —> deleting everything that is different
Specificity: formation and retrieval of particular experiences in detail —> SAVING everything that is different
complementary learning systems theory
theoretical framework of memory
basis: computational modeling
generalization = pattern completino by neocortex
—> slow extraction
specificity = pattern separation by hippocampus
—> fast encoding
CLS cannot explain developmental data
developmental data memory for general
earlier development —> statistical learning
earlier relative stability —> familiarity
BUT: Neocortex matures slowly during childhood & adolescence —> CLS cannot explain this data
REMERGE model
tries to solve gap between CLS & developmental data
generalization supported by recurrent processing in hippocampal network <-> in exchange with entorhinal cortex
Generalization —> monosynaptic pathway for completion
specificity —> trisynaptic pathway for completion and Separation
monosynaptic pathway
completion
CA 1
EC 3 und 5
trisynaptic pathway
separation + completion
ca 3 -> CA1
dentate gyrus —> EC 2
developmental pattern inside the hippocampus
increase in all subfields until early adolescence
increase in DG and CA3 up until young adulthood
DG takes longer to develop
relevant for specificity so makes sense that infants do not remember specific memories at young ages
postulation
generalization followed by specificity due to the pattern of defferentiation maturation in hippocampal subfields
accumulation of knowledge from repeated experiences (-> that means they are important!) —> advantageous
knowledge as framework in which details of new experiences can be added on and last long —> rise to episodic memory
Last changed5 months ago