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Timing of sound-evoked potentials and spike responses in the inferior colliculus of awake bats.

Neurons in the inferior colliculus (IC), one of the major integrative centers of the auditory system, process acoustic information converging from almost all nuclei of the auditory brain stem. During this integration, excitatory and inhibitory inputs…

Selectivity and persistent firing responses to social vocalizations in the basolateral amygdala.

This study examined responsiveness to acoustic stimuli among neurons of the basolateral amygdala. While recording from single neurons in awake mustached bats (Pteronotus parnellii), we presented a wide range of acoustic stimuli including tonal,…

Tags: 2012, Acoustic Stimulation, Action Potentials/*physiology, Amygdala/*physiology, Animal/*physiology, Animals, Auditory/physiology, Chiroptera/*physiology, College of Anatomy & Neurobiology, Department of Anatomy & Neurobiology, Echolocation/physiology, Evoked Potentials, NEOMED College of Medicine, Neurons/*physiology, Neuroscience, Peterson D C, Vocalization, Wenstrup J J

A novel coding mechanism for social vocalizations in the lateral amygdala.

The amygdala plays a central role in evaluating the significance of acoustic signals and coordinating the appropriate behavioral responses. To understand how amygdalar responses modulate auditory processing and drive emotional expression, we assessed…

Auditory responses in the cochlear nucleus of awake mustached bats: precursors to spectral integration in the auditory midbrain.

In the cochlear nucleus (CN) of awake mustached bats, single- and two-tone stimuli were used to examine how responses in major CN subdivisions contribute to spectrotemporal integrative features in the inferior colliculus (IC). Across CN subdivisions,…

Roles of inhibition in creating complex auditory responses in the inferior colliculus: facilitated combination-sensitive neurons.

We studied roles of inhibition on temporally sensitive facilitation in combination-sensitive neurons from the mustached bat's inferior colliculus (IC). In these integrative neurons, excitatory responses to best frequency (BF) tones are enhanced by…

Coding the meaning of sounds: contextual modulation of auditory responses in the basolateral amygdala.

Female mice emit a low-frequency harmonic (LFH) call in association with distinct behavioral contexts: mating and physical threat or pain. Here we report the results of acoustic, behavioral, and neurophysiological studies of the contextual analysis…

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