English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Single-subject analyses of magnetoencephalographic evoked responses to the acoustic properties of affective non-verbal vocalizations

Salvia, E., Bestelmeyer, P. E. G., Kotz, S. A., Rousselet, G. A., Pernet, C. R., Gross, J., et al. (2014). Single-subject analyses of magnetoencephalographic evoked responses to the acoustic properties of affective non-verbal vocalizations. Frontiers in Neuroscience, 8: 422. doi:10.3389/fnins.2014.00422.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-AE29-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-7C68-E
Genre: Journal Article

Files

show Files
hide Files
:
Salvia_2014.pdf (Publisher version), 2MB
Name:
Salvia_2014.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Salvia, Emilie1, Author
Bestelmeyer, Patricia E. G.2, Author
Kotz, Sonja A.3, 4, Author              
Rousselet, Guillaume A.1, Author
Pernet, Cyril R.5, Author
Gross, Joachim1, Author
Belin, Pascal1, 6, 7, Author
Affiliations:
1Centre for Cognitive Neuroimaging, University of Glasgow, United Kingdom, ou_persistent22              
2Bangor Imaging Unit, School of Psychology, Bangor University, United Kingdom, ou_persistent22              
3School of Psychological Sciences, University of Manchester, United Kingdom, ou_persistent22              
4Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_634551              
5Division of Clinical Neurosciences, Brain Research Imaging Centre, University of Edinburgh, United Kingdom, ou_persistent22              
6Department of Psychology, University of Montréal, QC, Canada, ou_persistent22              
7Institut des Neurosciences de la Timone, Aix-Marseille Université, France, ou_persistent22              

Content

show
hide
Free keywords: Acoustics; ANVs; Emotions; GLM; Magneto-encephalography; Single-subject; Voice morphing
 Abstract: Magneto-encephalography (MEG) was used to examine the cerebral response to affective non-verbal vocalizations (ANVs) at the single-subject level. Stimuli consisted of non-verbal affect bursts from the Montreal Affective Voices morphed to parametrically vary acoustical structure and perceived emotional properties. Scalp magnetic fields were recorded in three participants while they performed a 3-alternative forced choice emotion categorization task (Anger, Fear, Pleasure). Each participant performed more than 6000 trials to allow single-subject level statistical analyses using a new toolbox which implements the general linear model (GLM) on stimulus-specific responses (LIMO-EEG). For each participant we estimated “simple” models [including just one affective regressor (Arousal or Valence)] as well as “combined” models (including acoustical regressors). Results from the “simple” models revealed in every participant the significant early effects (as early as ~100 ms after onset) of Valence and Arousal already reported at the group-level in previous work. However, the “combined” models showed that few effects of Arousal remained after removing the acoustically-explained variance, whereas significant effects of Valence remained especially at late stages. This study demonstrates (i) that single-subject analyses replicate the results observed at early stages by group-level studies and (ii) the feasibility of GLM-based analysis of MEG data. It also suggests that early modulation of MEG amplitude by affective stimuli partly reflects their acoustical properties.

Details

show
hide
Language(s): eng - English
 Dates: 2014-04-292014-12-022014-12-22
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.3389/fnins.2014.00422
PMID: 25565951
Other: eCollection 2014
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Frontiers in Neuroscience
  Other : Front Neurosci
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Lausanne, Switzerland : Frontiers Research Foundation
Pages: - Volume / Issue: 8 Sequence Number: 422 Start / End Page: - Identifier: ISSN: 1662-4548
ISSN: 1662-453X
CoNE: /journals/resource/1662-4548