Integration of velocity-dependent spatio-temporal structure of place cell activation during navigation in a reservoir model of prefrontal cortex
Integration of velocity-dependent spatio-temporal structure of place cell activation during navigation in a reservoir model of prefrontal cortex
复制标题
前额皮质储层模型中导航过程中位置细胞激活的速度依赖性时空结构的整合
DOI:
10.1007/s00422-022-00945-6
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发表时间:
2022
影响因子:
1.9
通讯作者:
Dominey, Peter Ford
中科院分区:
文献类型:
--
作者:
Scleidorovich, Pablo;Weitzenfeld, Alfredo;Fellous, Jean-Marc;Dominey, Peter Ford
Sequential behavior unfolds both in space and in time. The same spatial trajectory can be realized in different manners in the same overall time by changing instantaneous speeds. The current research investigates how speed profiles might be given behavioral significance and how cortical networks might encode this information. We first demonstrate that rats can associate different speed patterns on the same trajectory with distinct behavioral choices. In this novel experimental paradigm, rats follow a small baited robot in a large megaspace environment where the rat’s speed is precisely controlled by the robot’s speed. Based on this proof of concept and research showing that recurrent reservoir networks are ideal for representing spatio-temporal structures, we then test reservoir networks in simulated navigation contexts and demonstrate they can discriminate between traversals of the same path with identical durations but different speed profiles. We then test the networks in an embodied robotic setup, where we use place cell representations from physically navigating robots as input and again successfully discriminate between traversals. To demonstrate that this capability is inherent to recurrent networks, we compared the model against simple linear integrators. Interestingly, although the linear integrators could also perform the speed profile discrimination, a clear difference emerged when examining information coding in both models. Reservoir neurons displayed a form of statistical mixed selectivity as a complex interaction between spatial location and speed that was not as abundant in the linear integrators. This mixed selectivity is characteristic of cortex and reservoirs and allows us to generate specific predictions about the neural activity that will be recorded in rat cortex in future experiments.
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DOI:
10.1016/s0163-1047(05)80065-2
发表时间:
1994-03-01
期刊:
BEHAVIORAL AND NEURAL BIOLOGY
影响因子:
--
作者:
CHIBA, AA;KESNER, RP;REYNOLDS, AM
通讯作者:
REYNOLDS, AM
影响因子:
1.9
作者:
Cazin, Nicolas;Scleidorovich, Pablo;Dominey, Peter Ford
通讯作者:
Dominey, Peter Ford
DOI:
--
发表时间:
2015
期刊:
IEEE International Joint Conference on Neural Network
影响因子:
--
作者:
G. Tejera;Martín Llofriu;Alejandra Barrera;A. Weitzenfeld
通讯作者:
A. Weitzenfeld
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Motoyasu Honma;Takeshi Kuroda;Akinori Futamura;Azusa Sugimoto;Hidetomo Murakami;Mitsuru Kawamura
通讯作者:
Mitsuru Kawamura
影响因子:
5.3
作者:
Araceli Ramirez;P. Viswanathan
通讯作者:
P. Viswanathan