Name
Title | ||
|---|---|---|
The dual-route hypothesis: evaluating a neurocomputational model of fear conditioning in rats |
Abstract | ||
|---|---|---|
Research on the neural bases of emotion raises much controversy and few quantitative models exist that can help address the issues raised. Here we replicate and dissect one of those models, Armony and colleagues' neurocomputational model of fear conditioning, which is based on LeDoux's dual-route hypothesis regarding the rat fear circuitry. The importance of the model's modular abstraction of the neuroanatomy, its use of population coding, and in particular the interplay between thalamo-amygdala and thalamo-cortical pathways are tested. We show that a trivially minimal version of the model can produce conditioning to a reinforced stimulus without recourse to the dual pathway structure, but a modification of the original model, which nevertheless preserves the thalamo-amygdala and (reduced) thalamo-cortical pathways, enables stronger conditioning to a conditioned stimulus. Implications for neurocomputational modelling approaches are discussed. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1080/09540090802414085 | Connect. Sci. |
Keywords | Field | DocType |
rat fear circuitry,quantitative model,thalamo-cortical pathway,neurocomputational model,dual pathway structure,original model,neurocomputational modelling approach,fear conditioning,dual-route hypothesis,stronger conditioning,emotion,population coding,computer and information science,conditioned stimulus,technology | Fear conditioning,Neural coding,Computer science,Cognitive science,Conditioning,Amygdala,Artificial intelligence,Stimulus (physiology),Neuroanatomy,Classical conditioning,Information and Computer Science | Journal |
Volume | Issue | ISSN |
21 | 1 | 0954-0091 |
Citations | PageRank | References |
9 | 0.77 | 4 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Robert Lowe | 1 | 111 | 12.22 |
| mark d humphries | 2 | 43 | 4.48 |
| Tom Ziemke | 3 | 681 | 67.03 |