Both here and there: simultaneous expression of autonomous spatial memories in rats.
Foraging rats learned to avoid footshock that was present in a part of a circular arena that was either stable or rotating slowly in a lighted room. The rotation dissociated spatial information in the separate reference frames of the room and arena. After learning to avoid the shocked region in either condition, in the absence of shock, memory for this place was expressed by simultaneous avoidance of an area defined in the reference frame of the room as well as of an area defined in the reference frame of the rotating arena. Spatial memories in these distinct reference frames were acquired, retrieved, and extinguished autonomously.
Fenton
A A
AA
Institute of Physiology, Academy of Sciences of the Czech Republic, Videnska 1083, 142 20 Prague 4, Czech Republic.
Wesierska
M
M
Kaminsky
Y
Y
Bures
J
J
D000818:Animals; D001362:Avoidance Learning; D001522:Behavior, Animal / Q000502:physiology; D008027:Light; D008297:Male; D008568:Memory / Q000502:physiology*; D051381:Rats; D011919:Rats, Inbred Strains; D013037:Spatial Behavior / Q000502:physiology*; D013997:Time Factors; D014796:Visual Perception