Abstract #2125

In vivo DTI to correlate in ‘real time’ testosterone-induced neural changes to song performance in a seasonal songbird

Jasmien Ellen Maria Jozef Orije¹, Geert De Groof², Sofie Van Massenhoven³, Elisabeth Jonckers², Veerle Darras⁴, and Annemie Van der Linden²

¹Bio-Imaging Lab, University of Antwerp, Deurne, Belgium, ²Bio-Imaging Lab, University of Antwerp, Wilrijk, Belgium, ³University of Antwerp, Wilrijk, Belgium, ⁴Laboratory of Comparative Endocrinology, KU Leuven, Leuven, Belgium

The dynamic relationship between song performance and neuroplasticity induced by testosterone implantation was monitored longitudinally in a seasonal songbird (European starling) by using in vivo DTI. Voxel based analysis showed that the song bout length was positively correlated to the fractional anisotropy changes in different parts of the motor pathway. Meaning that the motor pathway strengthens as song performance advances under the influence of testosterone.

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