scholarly journals Evidence for a shift from place navigation to directional responding in one variant of the Morris water task.

2009 ◽  
Vol 35 (2) ◽  
pp. 271-278 ◽  
Author(s):  
Derek A. Hamilton ◽  
Katherine G. Akers ◽  
Travis E. Johnson ◽  
James P. Rice ◽  
Felicha T. Candelaria ◽  
...  
Keyword(s):  
Morris Water Task ◽  
Place Navigation

scholarly journals Place navigation in the Morris water task results in greater nuclear Arc mRNA expression in dorsal compared to ventral CA1

Hippocampus ◽  
2019 ◽  
Vol 29 (11) ◽  
pp. 1133-1138
Author(s):  
J. Quinn Lee ◽  
Aubrey M. Demchuk ◽  
Erik Morgan ◽  
Rebecca McHugh ◽  
Bruce L. McNaughton ◽  
...  
Keyword(s):  
Mrna Expression ◽  
Morris Water Task ◽  
Place Navigation

scholarly journals Dissociation of exteroceptive and idiothetic orientation cues⋮ effect on hippocampal place cells and place navigation

1997 ◽  
Vol 352 (1360) ◽  
pp. 1515-1524 ◽  
Author(s):  
J. Bures ◽  
A. A. Fenton ◽  
Yu. Kaminsky ◽  
J. Rossier ◽  
B. Sacchetti ◽  
...  
Keyword(s):  
Spatial Cognition ◽  
Reference Frames ◽  
Target Location ◽  
Place Cells ◽  
Related Information ◽  
Place Navigation ◽  
Preference Task ◽  
Spatial Memories ◽  
Place Avoidance ◽  
Orientation Cues

Navigation by means of cognitive maps appears to require the hippocampus; hippocampal place cells (PCs) appear to store spatial memories because their discharge is confined to cell–specific places called firing fields (FFs). Experiments with rats manipulated idiothetic and landmark–related information to understand the relationship between PC activity and spatial cognition. Rotating a circular arena in the light caused a discrepancy between these cues. This discrepancy caused most FFs to disappear in both the arena and room reference frames. However, FFs persisted in the rotating arena frame when the discrepancy was reduced by darkness or by a card in the arena. The discrepancy was increased by ’field clamping’the rat in a room–defined FF location by rotations that countered its locomotion. Most FFs dissipated and reappeared an hour or more after the clamp. Place–avoidance experiments showed that navigation uses independent idiothetic and exteroceptive memories. Rats learned to avoid the unmarked footshock region within a circular arena. When acquired on the stable arena in the light, the location of the punishment was learned by using both room and idiothetic cues; extinction in the dark transferred to the following session in the light. If, however, extinction occurred during rotation, only the arena–frame avoidance was extinguished in darkness; the room–defined location was avoided when the lights were turned back on. Idiothetic memory of room–defined avoidance was not formed during rotation in light; regardless of rotation, there was no avoidance when the lights were turned off, but room–frame avoidance reappeared when the lights were turned back on. The place–preference task rewarded visits to an allocentric target location with a randomly dispersed pellet. The resulting behaviour alternated between random pellet searching and target–directed navigation, making it possible to examine PC correlates of these two classes of spatial behaviour. The independence of idiothetic and exteroceptive spatial memories and the disruption of PC firing during rotation suggest that PCs may not be necessary for spatial cognition; this idea can be tested by recordings during the place–avoidance and preference tasks.

scholarly journals The relative influence of place and direction in the Morris water task.

2008 ◽  
Vol 34 (1) ◽  
pp. 31-53 ◽  
Author(s):  
Derek A. Hamilton ◽  
Katherine G. Akers ◽  
Travis E. Johnson ◽  
James P. Rice ◽  
Felicha T. Candelaria ◽  
...  
Keyword(s):  
Relative Influence ◽  
Morris Water Task

scholarly journals Aplikasi Pencarian Tempat Wisata Berbasiskan GPS dengan Metode Radius dan Rating

2015 ◽  
Vol 6 (1) ◽  
pp. 109
Author(s):  
Budi Yulianto ◽  
Rita Layona
Keyword(s):  
Requirement Analysis ◽  
User Requirement ◽  
Development Method ◽  
Search Results ◽  
Place Navigation ◽  
Rating Method ◽  
Analysis Design ◽  
User Requirement Analysis

Tourist place navigation application becomes more important for travelers, especially backpackers. Previous research had produced applications which can only show the route from the position of traveler to tourist place with map shown. The goal of the research is to use the radius and rating method that is still rare in the community to navigate tourist place. Output of the research is a GPS-based application that can display the search results of tourist sites based on rating and radius method, route from the traveler to the destination place, and description of the place. Development method used waterfall that contained user requirement, analysis, design, coding and testing, implementation, and maintenance. Conclusion of the research has shown that the developed application provided convenience in searching tourist places based on radius and rating, displaying route, and description of tourist places.

Sign in / Sign up

Export Citation Format

Share Document