Recent data on the expression of several homeobox genes in the embryonic telencephalon
of mammals, birds and reptiles support the homology of a part of the avian pallium, named …

While a basal ganglia with striatal and pallidal subdivisions is1 clearly present in many
extant anamniote species, this basal ganglia is cell sparse and receives only a relatively …

The standard nomenclature that has been used for many telencephalic and related
brainstem structures in birds is based on flawed assumptions of homology to mammals. In …

Many species of birds, including pigeons, possess demonstrable cognitive capacities, and
some are capable of cognitive feats matching those of apes. Since mammalian cortex is …

Male zebra finches display two song behaviors: directed and undirected singing. The two
differ little in the vocalizations produced but greatly in how song is delivered." Directed" song …

This article introduces the notion of cognitive pattern generators and suggests, by analogy
with the central pattern generators of the motor system, that these pattern generators operate …

Based on quantitative cluster analyses of 52 constitutively expressed or behaviorally
regulated genes in 23 brain regions, we present a global view of telencephalic organization …

Vocal learning is a critical behavioral substrate for spoken human language. It is a rare trait
found in three distantly related groups of birds-songbirds, hummingbirds, and parrots. These …

Biotinylated dextran amines (BDA) are highly sensitive tools for anterograde and retrograde
pathway tracing studies of the nervous system. BDA can be reliably delivered into the …

Migratory birds can use a magnetic compass for orientation during their migratory journeys
covering thousands of kilometers. But how do they sense the reference direction provided by …