Brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics.
Research on the perception of facial emotional expressions (FEEs) often uses static images that do not capture the dynamic character of social coordination in natural settings. Recent behavioral and neuroimaging studies suggest that dynamic FEEs (videos or morphs) enhance emotion perception. To iden...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2017-01-01
|
| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5517022?pdf=render |
| _version_ | 1819068190136729600 |
|---|---|
| author | Dionysios Perdikis Jakob Volhard Viktor Müller Kathrin Kaulard Timothy R Brick Christian Wallraven Ulman Lindenberger |
| author_facet | Dionysios Perdikis Jakob Volhard Viktor Müller Kathrin Kaulard Timothy R Brick Christian Wallraven Ulman Lindenberger |
| author_sort | Dionysios Perdikis |
| collection | DOAJ |
| description | Research on the perception of facial emotional expressions (FEEs) often uses static images that do not capture the dynamic character of social coordination in natural settings. Recent behavioral and neuroimaging studies suggest that dynamic FEEs (videos or morphs) enhance emotion perception. To identify mechanisms associated with the perception of FEEs with natural dynamics, the present EEG (Electroencephalography)study compared (i) ecologically valid stimuli of angry and happy FEEs with natural dynamics to (ii) FEEs with unnatural dynamics, and to (iii) static FEEs. FEEs with unnatural dynamics showed faces moving in a biologically possible but unpredictable and atypical manner, generally resulting in ambivalent emotional content. Participants were asked to explicitly recognize FEEs. Using whole power (WP) and phase synchrony (Phase Locking Index, PLI), we found that brain responses discriminated between natural and unnatural FEEs (both static and dynamic). Differences were primarily observed in the timing and brain topographies of delta and theta PLI and WP, and in alpha and beta WP. Our results support the view that biologically plausible, albeit atypical, FEEs are processed by the brain by different mechanisms than natural FEEs. We conclude that natural movement dynamics are essential for the perception of FEEs and the associated brain processes. |
| first_indexed | 2024-12-21T16:30:12Z |
| format | Article |
| id | doaj.art-d0802073d4c34400b3dfc1eba0d2b3d0 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-21T16:30:12Z |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-d0802073d4c34400b3dfc1eba0d2b3d02022-12-21T18:57:21ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01127e018122510.1371/journal.pone.0181225Brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics.Dionysios PerdikisJakob VolhardViktor MüllerKathrin KaulardTimothy R BrickChristian WallravenUlman LindenbergerResearch on the perception of facial emotional expressions (FEEs) often uses static images that do not capture the dynamic character of social coordination in natural settings. Recent behavioral and neuroimaging studies suggest that dynamic FEEs (videos or morphs) enhance emotion perception. To identify mechanisms associated with the perception of FEEs with natural dynamics, the present EEG (Electroencephalography)study compared (i) ecologically valid stimuli of angry and happy FEEs with natural dynamics to (ii) FEEs with unnatural dynamics, and to (iii) static FEEs. FEEs with unnatural dynamics showed faces moving in a biologically possible but unpredictable and atypical manner, generally resulting in ambivalent emotional content. Participants were asked to explicitly recognize FEEs. Using whole power (WP) and phase synchrony (Phase Locking Index, PLI), we found that brain responses discriminated between natural and unnatural FEEs (both static and dynamic). Differences were primarily observed in the timing and brain topographies of delta and theta PLI and WP, and in alpha and beta WP. Our results support the view that biologically plausible, albeit atypical, FEEs are processed by the brain by different mechanisms than natural FEEs. We conclude that natural movement dynamics are essential for the perception of FEEs and the associated brain processes.http://europepmc.org/articles/PMC5517022?pdf=render |
| spellingShingle | Dionysios Perdikis Jakob Volhard Viktor Müller Kathrin Kaulard Timothy R Brick Christian Wallraven Ulman Lindenberger Brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics. PLoS ONE |
| title | Brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics. |
| title_full | Brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics. |
| title_fullStr | Brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics. |
| title_full_unstemmed | Brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics. |
| title_short | Brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics. |
| title_sort | brain synchronization during perception of facial emotional expressions with natural and unnatural dynamics |
| url | http://europepmc.org/articles/PMC5517022?pdf=render |
| work_keys_str_mv | AT dionysiosperdikis brainsynchronizationduringperceptionoffacialemotionalexpressionswithnaturalandunnaturaldynamics AT jakobvolhard brainsynchronizationduringperceptionoffacialemotionalexpressionswithnaturalandunnaturaldynamics AT viktormuller brainsynchronizationduringperceptionoffacialemotionalexpressionswithnaturalandunnaturaldynamics AT kathrinkaulard brainsynchronizationduringperceptionoffacialemotionalexpressionswithnaturalandunnaturaldynamics AT timothyrbrick brainsynchronizationduringperceptionoffacialemotionalexpressionswithnaturalandunnaturaldynamics AT christianwallraven brainsynchronizationduringperceptionoffacialemotionalexpressionswithnaturalandunnaturaldynamics AT ulmanlindenberger brainsynchronizationduringperceptionoffacialemotionalexpressionswithnaturalandunnaturaldynamics |