![Using approach latency and anticipatory behaviour to assess whether voluntary playpen access is rewarding to laboratory mice | Scientific Reports Using approach latency and anticipatory behaviour to assess whether voluntary playpen access is rewarding to laboratory mice | Scientific Reports](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-021-98356-3/MediaObjects/41598_2021_98356_Fig1_HTML.jpg)
Using approach latency and anticipatory behaviour to assess whether voluntary playpen access is rewarding to laboratory mice | Scientific Reports
![Made a playpen for my two rats! I can sit inside and they can run around and get to know me and gain trust. Still a work in progress but it was Made a playpen for my two rats! I can sit inside and they can run around and get to know me and gain trust. Still a work in progress but it was](https://i.redd.it/z01wv7xqucc11.jpg)
Made a playpen for my two rats! I can sit inside and they can run around and get to know me and gain trust. Still a work in progress but it was
![help?? this is tallest play pen i could find but my rats can easily jump up. idk what to do and it was pretty expensive. : r/RATS help?? this is tallest play pen i could find but my rats can easily jump up. idk what to do and it was pretty expensive. : r/RATS](https://i.redd.it/kic4yc9ify181.jpg)