Browsing by Author "Groh, Jennifer M"
Now showing items 1-14 of 14
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Auditory signals evolve from hybrid- to eye-centered coordinates in the primate superior colliculus.
(Journal of neurophysiology, 2012-07)Visual and auditory spatial signals initially arise in different reference frames. It has been postulated that auditory signals are translated from a head-centered to an eye-centered frame of reference compatible with the ... -
Beyond the labeled line: variation in visual reference frames from intraparietal cortex to frontal eye fields and the superior colliculus
(Journal of Neurophysiology, 2017-12-20)We accurately perceive the visual scene despite moving our eyes ~3 times per second, an ability that requires incorporation of eye position and retinal information. In this study, we assessed how this neural computation ... -
Comparison of gain-like properties of eye position signals in inferior colliculus versus auditory cortex of primates.
(Frontiers in integrative neuroscience, 2010-01)We evaluated to what extent the influence of eye position in the auditory pathway of primates can be described as a gain field. We compared single unit activity in the inferior colliculus (IC), core auditory cortex (A1) ... -
Different stimuli, different spatial codes: a visual map and an auditory rate code for oculomotor space in the primate superior colliculus.
(PLoS One, 2014)Maps are a mainstay of visual, somatosensory, and motor coding in many species. However, auditory maps of space have not been reported in the primate brain. Instead, recent studies have suggested that sound location may ... -
Distribution of eye position information in the monkey inferior colliculus.
(Journal of neurophysiology, 2012-02)The inferior colliculus (IC) is thought to have two main subdivisions, a central region that forms an important stop on the ascending auditory pathway and a surrounding shell region that may play a more modulatory role. ... -
Distribution of visual and saccade related information in the monkey inferior colliculus.
(Frontiers in neural circuits, 2012-01)The inferior colliculus (IC) is an essential stop early in the ascending auditory pathway. Though normally thought of as a predominantly auditory structure, recent work has uncovered a variety of non-auditory influences ... -
Effects of Electrical Stimulation in the Inferior Colliculus on Frequency Discrimination by Rhesus Monkeys and Implications for the Auditory Midbrain Implant.
(The Journal of neuroscience : the official journal of the Society for Neuroscience, 2016-05)Understanding the relationship between the auditory selectivity of neurons and their contribution to perception is critical to the design of effective auditory brain prosthetics. These prosthetics seek to mimic natural activity ... -
Effects of Initial Eye Position on Saccades Evoked by Microstimulation in the Primate Superior Colliculus: Implications for Models of the SC Read-Out Process.
(Frontiers in integrative neuroscience, 2011-01-19)The motor layers of the superior colliculus (SC) are thought to specify saccade amplitude and direction, independent of initial eye position. However, recent evidence suggests that eye position can modulate the level of ... -
Looking at the ventriloquist: visual outcome of eye movements calibrates sound localization.
(PloS one, 2013-01)A general problem in learning is how the brain determines what lesson to learn (and what lessons not to learn). For example, sound localization is a behavior that is partially learned with the aid of vision. This process ... -
Similar prevalence and magnitude of auditory-evoked and visually evoked activity in the frontal eye fields: implications for multisensory motor control.
(J Neurophysiol, 2016-06-01)Saccadic eye movements can be elicited by more than one type of sensory stimulus. This implies substantial transformations of signals originating in different sense organs as they reach a common motor output pathway. In ... -
Single neurons may encode simultaneous stimuli by switching between activity patterns.
(Nature communications, 2018-07-13)How the brain preserves information about multiple simultaneous items is poorly understood. We report that single neurons can represent multiple stimuli by interleaving signals across time. We record single units in an auditory ... -
Sounds and beyond: multisensory and other non-auditory signals in the inferior colliculus.
(Frontiers in neural circuits, 2012-01)The inferior colliculus (IC) is a major processing center situated mid-way along both the ascending and descending auditory pathways of the brain stem. Although it is fundamentally an auditory area, the IC also receives ... -
Systematic mapping of the monkey inferior colliculus reveals enhanced low frequency sound representation.
(Journal of neurophysiology, 2011-04)We investigated the functional architecture of the inferior colliculus (IC) in rhesus monkeys. We systematically mapped multiunit responses to tonal stimuli and noise in the IC and surrounding tissue of six rhesus macaques, ... -
The eardrums move when the eyes move: A multisensory effect on the mechanics of hearing.
(Proc Natl Acad Sci U S A, 2018-02-06)Interactions between sensory pathways such as the visual and auditory systems are known to occur in the brain, but where they first occur is uncertain. Here, we show a multimodal interaction evident at the eardrum. Ear canal ...
