Title | ||
---|---|---|
Spatial navigation and causal analysis in a brain-based device modeling cortical-hippocampal interactions. |
Abstract | ||
---|---|---|
We describe Darwin X, a physical device that interacts with a real environment, whose behavior is guided by a simulated nervous
system incorporating aspects of the detailed anatomy and physiology of the hippocampus and its surrounding regions. This brain-based
device integrates cues from its environment and solves a spatial memory task. The responses of simulated neuronal units in
the hippocampal areas during its exploratory behavior are comparable to place cells in the rodent hippocampus and emerged
by associating sensory cues during exploration. To identify different functional hippocampal pathways and their influence
on behavior, we employed a time series analysis that distinguishes causal interactions within and between simulated hippocampal
and neocortical regions while the device is engaged in a spatial memory task. Our analysis identified different functional
pathways within the neural simulation and prompts novel predictions about the influence of the perforant path, the trisynaptic
loop and hippocampal-cortical interactions on place cell activity and behavior during navigation. Moreover, this causal time
series analysis may be useful in analyzing networks in general. |
Year | DOI | Venue |
---|---|---|
2005 | 10.1385/NI:3:3:197 | Neuroinformatics |
Keywords | Field | DocType |
spatial navigation,time series analysis,nervous system,spatial memory | Perforant Pathway,Sensory cue,Episodic memory,Neuroscience,Computer science,Place cell,Perforant path,Spatial memory,Hippocampal formation,Hippocampus | Journal |
Volume | Issue | ISSN |
3 | 3 | 1539-2791 |
Citations | PageRank | References |
34 | 2.00 | 19 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Jeffrey L. Krichmar | 1 | 443 | 41.97 |
Anil K. Seth | 2 | 338 | 31.33 |
Douglas A. Nitz | 3 | 45 | 3.87 |
Jason G. Fleischer | 4 | 58 | 4.05 |
Gerald M. Edelman | 5 | 190 | 19.26 |