Fig. 5.
Effect of whole-body exposure to 1 GeV/nucleon 56Fe particles on the paradigm-specific performance of retired breeder rats: number of attempts required to reach criterion in sham-irradiated (open bar) and whole-body exposure to 15 cGy (hatched bar) or 20 cGy (solid bar) 1 GeV/nucleon 56Fe. Graphs show means ± SEM. HAB: habituation; SD: simple discrimination; CD: compound discrimination; CDR: compound discrimination reversal; IDS: intra-dimensional shifting; IDR: intra-dimensional shifting reversal; EDS: extra-dimensional shifting; EDR: extra-dimensional shifting reversal.