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Parametric information about eye movements is sent to the ears.
Lovich, Stephanie N; King, Cynthia D; Murphy, David L K; Landrum, Rachel E; Shera, Christopher A; Groh, Jennifer M.
Afiliação
  • Lovich SN; Department of Psychology and Neuroscience, Duke University, Durham, NC 27708.
  • King CD; Department of Neurobiology, Duke University, Durham, NC 27710.
  • Murphy DLK; Center for Cognitive Neuroscience, Duke University, Durham, NC 27708.
  • Landrum RE; Duke Institute for Brain Sciences, Duke University, Durham, NC 27708.
  • Shera CA; Department of Psychology and Neuroscience, Duke University, Durham, NC 27708.
  • Groh JM; Department of Neurobiology, Duke University, Durham, NC 27710.
Proc Natl Acad Sci U S A ; 120(48): e2303562120, 2023 Nov 28.
Article em En | MEDLINE | ID: mdl-37988462
Eye movements alter the relationship between the visual and auditory spatial scenes. Signals related to eye movements affect neural pathways from the ear through auditory cortex and beyond, but how these signals contribute to computing the locations of sounds with respect to the visual scene is poorly understood. Here, we evaluated the information contained in eye movement-related eardrum oscillations (EMREOs), pressure changes recorded in the ear canal that occur in conjunction with simultaneous eye movements. We show that EMREOs contain parametric information about horizontal and vertical eye displacement as well as initial/final eye position with respect to the head. The parametric information in the horizontal and vertical directions can be modeled as combining linearly, allowing accurate prediction of the EMREOs associated with oblique (diagonal) eye movements. Target location can also be inferred from the EMREO signals recorded during eye movements to those targets. We hypothesize that the (currently unknown) mechanism underlying EMREOs could impose a two-dimensional eye-movement-related transfer function on any incoming sound, permitting subsequent processing stages to compute the positions of sounds in relation to the visual scene.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Movimentos Sacádicos / Movimentos Oculares Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Movimentos Sacádicos / Movimentos Oculares Idioma: En Ano de publicação: 2023 Tipo de documento: Article