Browse Items · NEOMED Bibliography Database

Responses to combinations of tones in the nuclei of the lateral lemniscus.

Combination-sensitive neurons integrate specific spectral and temporal elements in biologically important sounds, and they may underlie the analysis of biosonar and social vocalizations. Combination-sensitive neurons are found in the forebrain of a…

Tags: 2001, Acoustic Stimulation/methods, Animals, Auditory Pathways/*physiology, Brain Stem/*physiology, Chiroptera, College of Anatomy & Neurobiology, Department of Anatomy & Neurobiology, Electrophysiology, Journal of the Association for Research in Otolaryngology : JARO, NEOMED College of Medicine, Neurons/physiology, Portfors C V, Reaction Time/physiology, Wenstrup J J

An operant-based detection method for inferring tinnitus in mice.

BACKGROUND: Subjective tinnitus is a hearing disorder in which a person perceives sound when no external sound is present. It can be acute or chronic. Because our current understanding of its pathology is incomplete, no effective cures have yet been…

Neural processing of target distance by echolocating bats: functional roles of the auditory midbrain.

Using their biological sonar, bats estimate distance to avoid obstacles and capture moving prey. The primary distance cue is the delay between the bat's emitted echolocation pulse and the return of an echo. The mustached bat's auditory midbrain…

Tags: 2011, Animals, Auditory Cortex/physiology, Auditory Pathways/*physiology, Auditory Perception/*physiology, Brain Mapping/psychology, Chiroptera/*physiology, College of Anatomy & Neurobiology, Department of Anatomy & Neurobiology, Echolocation/*physiology, Inferior Colliculi/*physiology, Models, NEOMED College of Medicine, Neurological, Neurons/physiology, Neuroscience and biobehavioral reviews, Portfors Christine V, Wenstrup Jeffrey J

Topographical distribution of delay-tuned responses in the mustached bat inferior colliculus.

In the mustached bat, delay-tuned neurons respond best to specific delays between the first harmonic frequency modulated (FM) component (FM1; 24-29 kHz) of the emitted biosonar pulse and a higher harmonic FM component in returning echoes (e.g. FM3,…

Tags: 2001, Acoustic Stimulation, Animals, Auditory Cortex/anatomy & histology/physiology, Chiroptera/*anatomy & histology/*physiology, College of Anatomy & Neurobiology, Department of Anatomy & Neurobiology, Echolocation/physiology, Hearing research, Inferior Colliculi/*anatomy & histology/*physiology, NEOMED College of Medicine, Neurons/physiology, Portfors C V, Ultrasonics, Wenstrup J J

Excitatory and facilitatory frequency response areas in the inferior colliculus of the mustached bat.

In the mustached bat's central nucleus of the inferior colliculus (ICC), many neurons display facilitatory or inhibitory responses when presented with two tones of distinctly different frequencies. Our previous studies have focused on spectral…

Tags: 2002, Acoustic Stimulation, Animal, Animals, Auditory, Auditory Perception/*physiology, Brain Stem, Chiroptera/*physiology, College of Anatomy & Neurobiology, Department of Anatomy & Neurobiology, Echolocation, Evoked Potentials, Hearing research, Inferior Colliculi/*physiology, NEOMED College of Medicine, Neurons/physiology, Portfors Christine V, Vocalization, Wenstrup Jeffrey J

A function for binaural integration in auditory grouping and segregation in the inferior colliculus.

Responses of neurons to binaural, harmonic complex stimuli in urethane-anesthetized guinea pig inferior colliculus (IC) are reported. To assess the binaural integration of harmonicity cues for sound segregation and grouping, responses were measured…

Tags: *Auditory Perception, 2015, Animals, Auditory, binaural integration, Evoked Potentials, Female, Guinea Pigs, harmonic complex, Inferior Colliculi/cytology/*physiology, inferior colliculus, Journal of neurophysiology, Magezi David A, Male, Nakamoto Kyle T, Neurons/physiology, Palmer Alan R, pitch, Shackleton Trevor M

Role of HCO3- ions in depolarizing GABAA receptor-mediated responses in pyramidal cells of rat hippocampus.

1. Activation of GABAA receptors can produce both hyperpolarizing and depolarizing responses in CA1 pyramidal cells. The hyperpolarizing response is mediated by a Cl- conductance, but the ionic basis of the depolarizing response is not clear. We…

Serotoninergic and enkephalinergic cell groups in the reticular formation of the bat ray and two skates.

The distribution of cells which were immunohistochemically positive for leu-enkephalin (LENK+) or serotonin (5-HT+), two substances widely distributed in the reticular formation, was determined in two species of skates (Raja binoculata and Raja…

Tags: 1991, Animals, Brain Mapping, Brain, behavior and evolution, Cruce W L, Diencephalon/anatomy & histology/physiology, Enkephalin, Immunoenzyme Techniques, Leucine/*physiology, Mesencephalon/anatomy & histology/physiology, Neurons/physiology, Northcutt R G, Reticular Formation/anatomy & histology/*physiology, Serotonin/*physiology, Skates (Fish)/*physiology, Species Specificity, Spinal Cord/anatomy & histology/physiology, Stuesse S L

Communication calls produced by electrical stimulation of four structures in the guinea pig brain.

One of the main central processes affecting the cortical representation of conspecific vocalizations is the collateral output from the extended motor system for call generation. Before starting to study this interaction we sought to compare the…

Tags: 2018, Acoustic Stimulation/methods, Animal/physiology, Animals, Auditory Perception/physiology, Brain/*physiology, Electric Stimulation/methods, Female, Green David B, Grimsley Jasmine M S, Guinea Pigs, Male, Neurons/physiology, Palmer Alan R, PloS one, Shackleton Trevor M, Vocalization, Wallace Mark N, Zobay Oliver

Spectral integration in the inferior colliculus of the mustached bat.

Acoustic behaviors including orientation and social communication depend on neural integration of information across the sound spectrum. In many species, spectral integration is performed by combination-sensitive neurons, responding best when…

Contribution of NMDA and AMPA receptors to temporal patterning of auditory responses in the inferior colliculus.

Although NMDA receptors (NMDARs) are associated with synaptic plasticity, they form an essential part of responses to sensory stimuli. We compared contributions of glutamatergic NMDARs and AMPA receptors (AMPARs) to auditory responses in the inferior…

Midbrain local circuits shape sound intensity codes.

Hierarchical processing of sensory information requires interaction at multiple levels along the peripheral to central pathway. Recent evidence suggests that interaction between driving and modulating components can shape both top down and bottom up…

Tags: 2013, Acoustic Stimulation, Animals, Auditory Pathways/*physiology, Auditory Perception/*physiology, Auditory Threshold/physiology, Frontiers in neural circuits, Grimsley Calum Alex, high divalents, Inferior Colliculi/*physiology, inferior colliculus, local circuits, Mice, monosynaptic, Neural Inhibition/*physiology, Neurons/physiology, Sanchez Jason Tait, Sivaramakrishnan Shobhana, sound intensity

Monoamine-activated alpha 2-macroglobulin inhibits neurite outgrowth, survival, choline acetyltransferase, and dopamine concentration of neurons by blocking neurotrophin-receptor (trk) phosphorylation and signal transduction.

The development of long-term potentiation in hippocampus and neocortex.

The development of long-term potentiation (LTP), an enduring alteration in synaptic efficacy following afferent activation, was examined in CA1 hippocampus and primary visual cortex of rat. Both regions show little LTP prior to postnatal day 5,…

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