Figure 4.

Graphs summarizing the observed probability of entering an arm based on its relative position to the arm being exited, for each block of training. Shaded areas highlight the peaks. Note that intact males show a strong preference for entering an adjacent arm, whereas intact females show a strong preference for entering an arm located two positions away. Note also that whereas ovariectomy had no effect, estradiol treatment caused females to shift to a male pattern. In contrast, both gonadectomy and testosterone treatment caused males to shift toward a female pattern.