The aims of the study were to (1) compare the serum concentration of anti-Müllerian hormone (AMH) with the number of follicles in ovaries and (2) determine the serum AMH con- centration before and after ovariohysterectomy in dioestrus and anoestrus bitches. Sixteen bitches were divided into two groups: Group I (n=8) consisted of dioestrus and group II (n=8) anoestrus bitches. The blood samples for AMH assesment were taken before ovariohysterectomy (day 0) and on day 1, 5 and 10. Both in group I and II, serum AMH concentrations on day 1 and 5 were significantly different compared to day 0 (p<0.05). However, the concentrations at day 10 were under the minimum detectable concentration (1.0 ng/mL) and this finding revealed that ovaries are the only source of AMH synthesis. Follicle counts were not statistically different between the groups (p>0.05). Significantly positive correlation in serum AMH with secondary follicle num- bers (r=.942, p<0.01), as well as negative correlation with antral follicle numbers (r=-.765, p<0.05) were determined in the group I. In the group II, positive correlations between serum AMH concentration and secondary follicle numbers (r=.960, p<0.01) and early antral follicles (r=.726, p<0.05) were noted. Assesment of AMH concentration seems to not only provide the diagnosis of the presence of ovaries but also correlate with the number of secondary follicles in young dioestrus and anoestrus bitches.

Decisions involving comparisons of Arabic number digits often exhibit an interference between the physical size of the digit and the implied numerical magnitude, a phenomenon called the size-congruity effect. Related research over the past four decades has yielded two competing models of the phenomenon: an early interaction account, where interference between numerical and physical magnitude occurs at an early encoding stage, and a late interaction account, where the interference occurs downstream as response competition during the decision process. In the present study, we asked participants to compare the physical sizes of pairs of Arabic digits. We fit the resulting response time distributions with a shifted Wald model, a single boundary accumulator model, which gave us estimates of information accumulation rate (drift rate), response threshold, and nondecision time. We found that incongruity between physical size and numerical magnitude affected the decision-related estimates of drift rate and response threshold. Further, a Bayesian analysis confirmed a null effect of congruity on nondecision time. These results indicate that the observed interference originates from decision-related processes, lending further support for a late interaction account of the size-congruity effect.