Parametric information about eye movements is sent to the ears.
coordinate transformations
otoacoustic emissions
reference frames
saccades
sound localization
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
28 Nov 2023
28 Nov 2023
Historique:
medline:
27
11
2023
pubmed:
21
11
2023
entrez:
21
11
2023
Statut:
ppublish
Résumé
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.
Identifiants
pubmed: 37988462
doi: 10.1073/pnas.2303562120
pmc: PMC10691342
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2303562120Subventions
Organisme : NIDCD NIH HHS
ID : R01 DC017532
Pays : United States
Organisme : NIDCD NIH HHS
ID : R01 DC020363
Pays : United States
Déclaration de conflit d'intérêts
Competing interests statement:The authors declare no competing interest.
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