Processing of spatial sounds in human auditory cortex during visual, discrimination and 2-back tasks
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Date
2014
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Frontiers in Neuroscience, Volume 8, pp. 1-9
Abstract
Previous imaging studies on the brain mechanisms of spatial hearing have mainly focused on sounds varying in the horizontal plane. In this study, we compared activations in human auditory cortex (AC) and adjacent inferior parietal lobule (IPL) to sounds varying in horizontal location, distance, or space (i.e., different rooms). In order to investigate both stimulus-dependent and task-dependent activations, these sounds were presented during visual discrimination, auditory discrimination, and auditory 2-back memory tasks. Consistent with previous studies, activations in AC were modulated by the auditory tasks. During both auditory and visual tasks, activations in AC were stronger to sounds varying in horizontal location than along other feature dimensions. However, in IPL, this enhancement was detected only during auditory tasks. Based on these results, we argue that IPL is not primarily involved in stimulus-level spatial analysis but that it may represent such information for more general processing when relevant to an active auditory task. IntroductionDescription
VK: Lokki
Keywords
auditory cortex, spatial processing, fMRI, auditory cortex, spatial processing, fMRI
Other note
Citation
Rinne, T, Ala-Salomäki, H, Stecker, G C, Pätynen, J & Lokki, T 2014, ' Processing of spatial sounds in human auditory cortex during visual, discrimination and 2-back tasks ', Frontiers in Neuroscience, vol. 8, 220, pp. 1-9 . https://doi.org/10.3389/fnins.2014.00220