Duty cycle describes the relative 'on time'of a periodic signal. In bats, we argue that high duty
cycle (HDC) echolocation was selected for and evolved from low duty cycle (LDC) …

The auditory modality is fundamentally a temporal sense that requires analysis of changes
in sound signals on timescales ranging from microseconds to minutes. To generate a faithful …

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 …

Temporal cues, including sound duration, are important for sound identification. Neurons
tuned to the duration of pure tones were first discovered in the auditory system of frogs and …

The inferior colliculus (IC) is the first place in the central auditory pathway where duration-
selective neurons are found. Previous neuropharmacological and electrophysiological …

The ability to detect time intervals and temporal patterns is critical to some of the most
fundamental computations the brain performs, including the ability to communicate and …

Speech is the most interesting and one of the most complex sounds dealt with by the
auditory system. The neural representation of speech needs to capture those features of the …

This report describes a projection from the amygdala, a forebrain center mediating
emotional expression, to the inferior colliculus (IC), the midbrain integration center of the …

Echolocating bats (sub-order: Microchiroptera) form a highly successful group of animals,
comprising approximately 700 species and an estimated 25% of living mammals. Many …

It has been proposed that sound information is separately streamed into onset and offset
pathways for parallel processing. However, how offset responses contribute to auditory …