fun #PaperQuote, from the methods of a #PlaceCell paper:

[…] small white Christmas tree lights, centered 160 cm over the
cylinder floor, provided the only illumination in the black room. These conditions provided very little directional information other than the cue card; even the experimenters at times became disoriented after some time in the room, opening the curtain at the wrong location at the end
of the session when trying to find the door.
… ooops 😂
The paper: Knierim et al., 1995

(discovered by Roddy Grieves, not on Mastodon)