Is long-term social recognition memory mediated by oxytocin-dependent synaptic plasticity in the medial amygdala?
Our results indicate that long-term SRM in rats involves protein synthesis and oxytocin-dependent LTD in the MeA.
Treloar's estimates of mean cycle length were biased. Long cycles occurred throughout perimenopause, but the largest increase in mean cycle length did not occur until the final year before menopause. New estimates of the time spent in cycles >40 days may be useful clinically as well as epidemiologically for assessing menopausal onset and symptomatology.