Vocal imitation involves incorporating instructive auditory information into relevant motor
circuits through processes that are poorly understood. In zebra finches, we found that exposure …

Vocal exchanges between individuals are often coordinated in a temporally precise manner:
one party is vocalizing while the other one is listening until the performance roles are …

Whereas much is known about how we categorize and reason based on absolute quantity,
data exploring ratios of quantities, as in proportions and fractions, are comparatively sparse. …

High-frequency ripple oscillations, observed most prominently in the hippocampal CA1
pyramidal layer, are associated with memory consolidation. The cellular and network …

In the zebra finch, singing behavior is driven by a sequence of bursts within premotor
neurons located in the forebrain nucleus HVC (proper name). In addition to these excitatory …

Primate brains are equipped with evolutionarily old and dedicated neural circuits so that
they can grasp absolute quantities, such as the number of items or the length of a line [1–8]. …

The superior colliculus is a midbrain structure that plays important roles in visually guided
behaviors in mammals. Neurons in the superior colliculus receive inputs from retinal ganglion …

The zebra finch brain features a set of clearly defined and hierarchically arranged motor
nuclei that are selectively responsible for producing singing behavior. One of these regions, a …

The dichotomy between vocal learners and non-learners is a fundamental distinction in the
study of animal communication. Male zebra finches (Taeniopygia guttata) are vocal learners …

The primate prefrontal (PFC) and posterior parietal cortices (PPC) have been shown to be
cardinal structures in processing abstract absolute magnitudes, such as numerosity or length. …