Assumptions underlying the path integration mechanism that would result in each of hypothetical foraging/homing paths illustrated in Fig. 2
Hypothetical path | Direction information | Integration of self-translation during disk rotation? | Integration of imposed translation resulting from disk rotation? | Integration of compensatory turns? |
---|---|---|---|---|
Black | Allothetic | No | No | No; direction from e.g. sky |
Blue | Allothetic | Yes; measured against e.g. sky | No | No; direction from e.g. sky |
Violet | Allothetic | Yes; measured against e.g. sky | Yes; measured against e.g. sky | No; direction from e.g. sky |
Red | Idiothetic | No | No | No |
Orange | Idiothetic | No | No | Yes |
Green | Idiothetic | Yes; measured against body axis | No | Yes |
Gray | Idiothetic | Yes; measured against body axis | No | No |