▪ Abstract Echolocating bats use audition to guide much of their behavior. As in all
vertebrates, their lower brainstem contains a number of parallel auditory pathways that …

This work reviews the human auditory system, elucidating some of the specialized
mechanisms and non-linear pathways along the chain of events between physical sound …

Duration is a biologically important feature of sound. Some neurons in the inferior colliculus
of the big brown bat, Eptesicus fuscus, are tuned to sound duration, but it is unclear at what …

The inferior colliculus (IC)(Fig. 7.1) occupies a strategic position in the central auditory
system. Evidence reviewed in this chapter indicates that it is an interface between lower …

The auditory system, like the visual and somatosensory systems, contains topographic maps
in its central neural pathways. These maps can be modified by sensory deprivation, injury …

The inferior colliculus receives excitatory and inhibitory input from parallel auditory pathways
that differ in discharge patterns, latencies, and binaural properties. Processing in the inferior …

Recent studies of corticofugal modulation of auditory information processing indicate that
cortical neurons mediate both a highly focused positive feedback to subcortical neurons …

1. We examined the role of gamma-aminobutyric acid (GABA)-mediated inhibition in
sha** excitatory tuning curves and creating selectivity for frequency-modulated (FM) …

Ehrlich, Daphna, John H. Casseday, and Ellen Covey. Neural tuning to sound duration in
the inferior colliculus of the big brown bat, Eptesicus fuscus. J. Neurophysiol. 77: 2360 …

A general statement of the function of the inferior colliculus is lacking, even after more than
three decades of electrophysiological investigation. A neuroethological theory is proposed …