Uncoordinated sleep replay across hemispheres in the zebra finch.

Bilaterally organized brain regions are often simultaneously active in both humans and animal models, but the extent to which the temporal progression of internally generated dynamics is coordinated across hemispheres and how this coordination changes with brain state remain poorly understood. To address these issues, we investigated the zebra finch courtship song (duration: 0.5-1.

Thalamus drives vocal onsets in the zebra finch courtship song.

While motor cortical circuits contain information related to specific movement parameters, long-range inputs also have a critical role in action execution. Thalamic projections can shape premotor activity and have been suggested to mediate the selection of short, stereotyped actions comprising more complex behaviours. However, the mechanisms by which thalamus interacts with motor cortical circuits to execute such movement sequences remain unknown.

Interindividual differences in memory system local field potential activity predict behavioral strategy on a dual-solution T-maze.

Individuals can use diverse behavioral strategies to navigate their environment including hippocampal-dependent place strategies reliant upon cognitive maps and striatal-dependent response strategies reliant upon egocentric body turns. The existence of multiple memory systems appears to facilitate successful navigation across a wide range of environmental and physiological conditions. The mechanisms by which these systems interact to ultimately generate a unitary behavioral response, however, remain unclear.