Publications by authors named "Colleen A Barber"
Article Synopsis
- The study investigates seasonal changes in neurogenesis, or new neuron formation, in specific brain regions related to vocal behavior and auditory perception in European starlings.
- Researchers found differences in the type and amount of neurogenesis between spring and fall, with males showing increased neurogenesis in certain brain areas during fall, while females did not exhibit seasonal differences.
- Additionally, the study noted a higher level of plasma corticosterone in spring, linked to male reproductive conditions, but no correlation with neurogenesis or stress indicators in either sex.
The second to fourth digit ratio (2D:4D) is a sexually dimorphic trait with lower finger ratios considered more masculine. These digit ratios are believed to reflect the prenatal hormonal environment with higher exposure to androgens in utero leading to more masculine digit ratios. The 2D:4D ratio has been negatively correlated with many factors, including aggression, physical fitness, and athleticism.
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