Effects of Testosterone and Photoperiodic Condition on Song Production and Vocal Control Region Volumes in Adult Male Dark-Eyed Juncos (Junco hyemalis)

Effects of captivity and testosterone on

Effects of captivity and testosterone on the volumes of four brain regions in the dark-eyed junco (Junco hyemalis)

✍ Smulders, T. V. ;Casto, J. M. ;Nolan, V. ;Ketterson, E. D. ;DeVoogd, T. J. 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 95 KB 👁 2 views

## This study investigates the effects of captivity and testosterone treatment on the volumes of brain regions involved in processing visual and spatial information in adult dark-eyed juncos (Junco hyemalis). We treated captive and free-living male juncos with either testosterone-filled or empty im