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ISSN 2095-9184 (print), ISSN 2095-9230 (online)

Biologically inspired model of path integration based on head direction cells and grid cells

Abstract: Some neurons in the brain of freely moving rodents show special firing pattern. The firing of head direction cells (HDCs) and grid cells (GCs) is related to the moving direction and distance, respectively. Thus, it is considered that these cells play an important role in the rodents’ path integration. To provide a bionic approach for the vehicle to achieve path integration, we present a biologically inspired model of path integration based on the firing characteristics of HDCs and GCs. The detailed implementation process of this model is discussed. Besides, the proposed model is realized by simulation, and the path integration performance is analyzed under different conditions. Simulations validate that the proposed model is effective and stable.

Key words: Head direction cells (HDCs), Grid cells (GCs), Path integration, Bionic navigation

Chinese Summary  <27> åŸºäºŽå¤´æœå‘细胞和网格细胞的生物å¯å‘å¼è·¯å¾„æ•´åˆæ¨¡åž‹

目的:以脑神ç»ç§‘学为基础,结åˆå¤´æœå‘细胞(head direction cells)和网格细胞(grid cells)的放电特性,为è¿è¡Œä½“智能自主导航æ供一ç§ç”Ÿç‰©å¯å‘å¼çš„路径整åˆæ¨¡åž‹ã€‚
创新点:分别建立了头æœå‘细胞和网格细胞与方å‘å’Œè·ç¦»é—´çš„对应关系,以此解决路径整åˆé—®é¢˜ã€‚并针对模型的实现æ出了网格间è·å’Œæ”¾ç”µé‡ŽåŠå¾„的设置æ¡ä»¶ã€‚
方法:首先,采用头æœå‘细胞感知其表å¾æ–¹å‘上的速度,并对è¿è¡Œæ–¹å‘进行度é‡ã€‚其次,相对头æœå‘细胞引入对应的è·ç¦»ç»†èƒžï¼ˆdistance cells),用于处ç†å„头æœå‘细胞感知的速度,并对相对方ä½è¿›è¡Œåº¦é‡ã€‚最åŽï¼Œè·ç¦»ç»†èƒžå¤„ç†å¾—到的ä½ç§»è¾“入到网格细胞中用于计算å„网格细胞的放电率,并结åˆç½‘格细胞的放电样å¼ï¼Œå¯¹è¿è¡Œè·ç¦»è¿›è¡Œåº¦é‡ã€‚以此,è¿è¡Œä½“通过å„类细胞的放电情况感知è¿è¡Œæ–¹å‘ã€ç›¸å¯¹æ–¹ä½ä»¥åŠè¿è¡Œè·ç¦»ï¼Œæœ€ç»ˆå®žçŽ°è·¯å¾„æ•´åˆã€‚
结论:本文有效地将头æœå‘细胞和网格细胞的放电特性与路径整åˆæ‰€éœ€çš„æ–¹å‘å’Œè·ç¦»è¿›è¡Œäº†å…³è”。è¿è¡Œä½“能够通过感知å„类细胞的放电情况实现路径整åˆï¼Œä¸”实现的路径整åˆæ€§èƒ½å…·æœ‰ä¸€å®šç¨³å®šæ€§ã€‚

关键è¯ç»„:头æœå‘细胞;网格细胞;路径整åˆï¼›ä»¿ç”Ÿå¯¼èˆª


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DOI:

10.1631/FITEE.1500364

CLC number:

TP391; TP24

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On-line Access:

2016-05-04

Received:

2015-10-21

Revision Accepted:

2016-03-16

Crosschecked:

2016-04-11

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