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The electrophysiology of voluntary and cued language switching: evidence from event related potentials and neuronal oscillations ...
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Cortical basis of vocalization in behaving freely moving minipigs ; Bases corticales de la vocalisation chez le miniporc en comportement
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In: https://tel.archives-ouvertes.fr/tel-03353386 ; Neuroscience. Université Grenoble Alpes [2020-.], 2021. English. ⟨NNT : 2021GRALS013⟩ (2021)
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Analysis of cortical activity for the development of brain-computer interfaces for speech ; Analyse d'activité corticale pour le développement d'interfaces cerveau-machine pour la parole
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In: https://tel.archives-ouvertes.fr/tel-03578854 ; Bioinformatics [q-bio.QM]. Université Grenoble Alpes [2020-.], 2021. English. ⟨NNT : 2021GRALS022⟩ (2021)
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Modality switch effects emerge early and increase throughout conceptual processing: Evidence from ERPs ...
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Interpreting the Effect of Stimulus Parameters on the Electrically Evoked Compound Action Potential and on Neural Health Estimates
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Abstract:
Abstract: Variations in the condition of the neural population along the length of the cochlea can degrade the spectral and temporal representation of sounds conveyed by CIs, thereby limiting speech perception. One measurement that has been proposed as an estimate of neural survival (the number of remaining functional neurons) or neural health (the health of those remaining neurons) is the effect of stimulation parameters, such as the interphase gap (IPG), on the amplitude growth function (AGF) of the electrically evoked compound action potential (ECAP). The extent to which such measures reflect neural factors, rather than non-neural factors (e.g. electrode orientation, electrode-modiolus distance, and impedance), depends crucially upon how the AGF data are analysed. However, there is currently no consensus in the literature for the correct method to interpret changes in the ECAP AGF due to changes in stimulation parameters. We present a simple theoretical model for the effect of IPG on ECAP AGFs, along with a re-analysis of both animal and human data that measured the IPG effect. Both the theoretical model and the re-analysis of the animal data suggest that the IPG effect on ECAP AGF slope (IPG slope effect), measured using either a linear or logarithmic input-output scale, does not successfully control for the effects of non-neural factors. Both the model and the data suggest that the appropriate method to estimate neural health is by measuring the IPG offset effect, defined as the dB offset between the linear portions of ECAP AGFs for two stimuli differing only in IPG.
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Keyword:
cochlear implants; ECAP; electrophysiology; inter-phase gap; neural health; neural survival; Research Article
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URL: https://www.repository.cam.ac.uk/handle/1810/316588 https://doi.org/10.17863/CAM.63700
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Coping with Complexity: Characterizing High and Low Learning During On-Line Acquisition of a Seminatural Micro Language
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CRCNS Dataset: Spiking auditory network model and spectro-temporal receptive fields from auditory nerve, midbrain, thalamus and cortex ...
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Interpreting the Effect of Stimulus Parameters on the Electrically Evoked Compound Action Potential and on Neural Health Estimates ...
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Revisiting infant distributional learning using event-related potentials : does unimodal always inhibit and bimodal always facilitate?
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Assessment protocols for forward masking in Frequency-Following Response
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In: Revista CEFAC, Vol 22, Iss 6 (2020) (2020)
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An Ocean of Brain Waves: Analyzing Methods to Find ERP Signals in the Noise
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In: Student Research Symposium (2019)
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Auditory and cognitive skills in adults with reported listening in noise difficulties
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Neural Sensitivity to Mutual Information in Intermediate-Complexity Face Features Changes during Childhood
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In: Brain Sciences ; Volume 9 ; Issue 7 (2019)
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Taking a closer look at visual search: just how feature-agnostic is singleton detection mode?
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Student perceptions of two simulated learning environments in paediatric audiology
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Neural Sensitivity to Mutual Information in Intermediate-Complexity Face Features Changes during Childhood
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In: Psychology Faculty Publications (2019)
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Cognitive Auditory Evoked Potential in children with speech sound disorders: analysis of different verbal stimuli
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In: Revista CEFAC, Vol 21, Iss 5 (2019) (2019)
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Neurophysiological indices of the effect of cognates on vowel perception in late Spanish-English bilinguals
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Joint Representation of Spatial and Phonetic Features in the Human Core Auditory Cortex
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A Motor Theory of Reading: The interaction of visual and auditory language
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In: Kaestner, Erik. (2018). A Motor Theory of Reading: The interaction of visual and auditory language. UC San Diego: Neurosciences. Retrieved from: http://www.escholarship.org/uc/item/1rj1z4vz (2018)
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