The effects of hippocampal lesions in homing pigeons on a one-trial food association task

1999 ◽  
Vol 185 (6) ◽  
pp. 583-590 ◽  
Author(s):  
R. Strasser ◽  
V. P. Bingman
Keyword(s):  
Homing Pigeons ◽  
Association Task ◽  
Hippocampal Lesions

Hippocampal lesion effects on learning strategies in homing pigeons

1996 ◽  
Vol 263 (1370) ◽  
pp. 529-534 ◽  
Keyword(s):  
Learning Strategies ◽  
Hippocampal Lesion ◽  
Food Reward ◽  
The Sun ◽  
Sun Compass ◽  
Homing Pigeons ◽  
Directional Information ◽  
Intact Control ◽  
Hippocampal Lesions ◽  
Clock Shift

Several studies have shown that birds have a directional view of space and tend to use the sun compass over landmark beacons when both are available. Intact homing pigeons can use either the sun compass or colour beacons to locate a food reward, whereas pigeons with hippocampal lesions are unable to use the sun compass, but quickly learn to use colour beacons. We trained hippocampal ablated and intact pigeons to find a reward in an outdoor octagonal arena when both sun compass information (directional cues) and intramaze landmark beacons (colour cues) were available. The intact control pigeons learned the task by preferentially relying on directional cues while effectively ignoring the colour beacons. The behaviour of the hippocampal ablated birds, based on a clock-shift manipulation and after the rotation of the colour beacons, showed that they learned to locate the food reward in the arena only on the basis of the landmark beacons, ignoring the sun compass directional information.

Hippocampal lesions do not disrupt navigational map retention in homing pigeons under conditions when map acquisition is hippocampal dependent

2004 ◽  
Vol 153 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Anna Gagliardo ◽  
Paolo Ioalè ◽  
Francesca Odetti ◽  
Meghan C Kahn ◽  
Verner P Bingman
Keyword(s):  
Homing Pigeons ◽  
Navigational Map ◽  
Hippocampal Lesions

Hippocampal lesions in homing pigeons do not impair feature-quality or feature-quantity discrimination

2014 ◽  
Vol 260 ◽  
pp. 83-91 ◽  
Author(s):  
Vincent J. Coppola ◽  
Joy M. Spencer ◽  
Ryan M. Peterson ◽  
Verner P. Bingman
Keyword(s):  
Quantity Discrimination ◽  
Homing Pigeons ◽  
Hippocampal Lesions
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