Talk about letters is an important part of the home literacy environment. Such talk has been stud... more Talk about letters is an important part of the home literacy environment. Such talk has been studied primarily through questionnaires, but these are limited in the amount of information they provide. Here we analyzed conversations between 55 U.S. children and their parents who were visited in their homes every 4 months when the child was between 1.2 and 4.8 years old. We examined the aspects of alphabet knowledge that parents and children discussed, the materials they used, and how these varied with the age of the child and the socioeconomic status of the family. Children primarily focused on identifying letters, while parents also emphasized letter writing and spelling. Talk about the associations between letters and sounds, which is critical in learning to read and write, was less common than anticipated based on the results of questionnaire studies. Teachers should thus not overestimate the knowledge of letter sounds that children acquire at home.
The present study investigated whether the presence or absence of peripubertal ovarian hormones a... more The present study investigated whether the presence or absence of peripubertal ovarian hormones affects sexual preference and conditioned place preference for paced mating in adult female rats primed with 10 μg estradiol benzoate and 1 mg progesterone. Ovariectomy (OVX) occurred either before or after pubertal development, and 4 weeks later rats began a series of behavioral tests. Rats with ovaries removed before the pubertal timeframe (Prepubertal OVX) were more active, more likely to withdrawal from the male compartment, and did not discriminate between mounts and intromissions during paced mating relative to rats with ovaries during puberty (Adult OVX). Both Adult OVX and Prepubertal OVX rats showed a higher preference for the male when hormone primed vs. oil treated and a conditioned place preference for paced mating behavior. The results of the present study demonstrate that some, but not all, aspects of female sexual behavior require ovarian hormones during puberty.
Talk about letters is an important part of the home literacy environment. Such talk has been stud... more Talk about letters is an important part of the home literacy environment. Such talk has been studied primarily through questionnaires, but these are limited in the amount of information they provide. Here we analyzed conversations between 55 U.S. children and their parents who were visited in their homes every 4 months when the child was between 1.2 and 4.8 years old. We examined the aspects of alphabet knowledge that parents and children discussed, the materials they used, and how these varied with the age of the child and the socioeconomic status of the family. Children primarily focused on identifying letters, while parents also emphasized letter writing and spelling. Talk about the associations between letters and sounds, which is critical in learning to read and write, was less common than anticipated based on the results of questionnaire studies. Teachers should thus not overestimate the knowledge of letter sounds that children acquire at home.
The present study investigated whether the presence or absence of peripubertal ovarian hormones a... more The present study investigated whether the presence or absence of peripubertal ovarian hormones affects sexual preference and conditioned place preference for paced mating in adult female rats primed with 10 μg estradiol benzoate and 1 mg progesterone. Ovariectomy (OVX) occurred either before or after pubertal development, and 4 weeks later rats began a series of behavioral tests. Rats with ovaries removed before the pubertal timeframe (Prepubertal OVX) were more active, more likely to withdrawal from the male compartment, and did not discriminate between mounts and intromissions during paced mating relative to rats with ovaries during puberty (Adult OVX). Both Adult OVX and Prepubertal OVX rats showed a higher preference for the male when hormone primed vs. oil treated and a conditioned place preference for paced mating behavior. The results of the present study demonstrate that some, but not all, aspects of female sexual behavior require ovarian hormones during puberty.
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Papers by Molly E. Farry-Thorn