Title
A dual association model for acquisition and extinction
Abstract
Phenomena like faster reacquisition of learned associations after extinction were initially explained via residual synaptic plasticity in the relevant neural circuits. However, this account cannot explain many recent behavioral findings. This includes phenomena like savings in extinction, reinstatement, spontaneous recovery and renewal. These phenomena point to the possibility that extinction isn't a mere reversal of the associations formed during acquisition. It instead involves the superimposition of some separate decremental process that works to inhibit the previously learned responses. We have explored this dual-pathway account using a neurocomputational model of conditioning. In our model, associations related to acquisition and extinction are maintained side by side as a result of the interaction between general neural learning processes and the presence of lateral inhibition between neurons. The model captures relevant behavioral phenomena that prompted the hypothesis of separate acquisition and extinction pathways. It also shows how seemingly complex behavior can emerge out of relatively simple underlying neural mechanisms.
Year
DOI
Venue
2011
10.1007/978-3-642-23954-0_15
AI*IA
Keywords
Field
DocType
relevant behavioral phenomenon,relevant neural circuit,separate decremental process,neurocomputational model,separate acquisition,dual-pathway account,recent behavioral finding,simple underlying neural mechanism,general neural,dual association model,extinction pathway
Neural learning,Neuroscience,Spontaneous recovery,Computer science,Lateral inhibition,Synaptic plasticity,Biological neural network,Leabra,Extinction
Conference
Volume
ISSN
Citations 
6934
0302-9743
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Ashish Gupta129256.19
Lovekesh Vig216031.36