Timberlake & White (1990) showed that the behavior of rats run on an unbaited radial maze was nearly identical to that of rats on a baited maze, as measured by percent novel arms chosen in the first eight choices, percent arms entered that were traversed completely, and percent adjacent arms chosen.  These results suggested that memory for arms visited on a radial maze has encapsulated qualities relative to the presence or absence of food reward.  The present work further tested this possibility using a procedure of forced exposure to 4 arms followed by free-choice of all 8 arms after periods of 15, 30, or 60 minutes.  Groups of rats received all combinations of baited (B) and unbaited (U) arms during forced exposure and recall (B-B, B-U, U-B, U-U). 

        ©2003 All copyrights for the individual chapters are retained by the authors. All other material in this book is copyrighted by the editor, unless noted otherwise. If there has been an error with regards to unacknowledged copyrighted material, please contact the editor immediately so that this can be corrected. Permissions for using material in this book should be sent to the editor.