Time-resolved classification of dog brain signals reveals early processing of faces, species and emotion

Show full item record



Permalink

http://hdl.handle.net/10138/323337

Citation

Kujala , M , Kauppi , J-P , Törnqvist , H , Helle , L , Vainio , O , Kujala , J & Parkkonen , L 2020 , ' Time-resolved classification of dog brain signals reveals early processing of faces, species and emotion ' , Scientific Reports , vol. 10 , no. 1 , 19846 . https://doi.org/10.1038/s41598-020-76806-8

Title: Time-resolved classification of dog brain signals reveals early processing of faces, species and emotion
Author: Kujala, Miiamaaria; Kauppi, Jukka-Pekka; Törnqvist, Heini; Helle, Liisa; Vainio, Outi; Kujala, Jan; Parkkonen, Lauri
Contributor organization: Helsinki One Health (HOH)
Departments of Faculty of Veterinary Medicine
Research Centre for Animal Welfare
Equine and Small Animal Medicine
Outi Vainio / Principal Investigator
Date: 2020-11-16
Language: eng
Number of pages: 13
Belongs to series: Scientific Reports
ISSN: 2045-2322
DOI: https://doi.org/10.1038/s41598-020-76806-8
URI: http://hdl.handle.net/10138/323337
Abstract: Dogs process faces and emotional expressions much like humans, but the time windows important for face processing in dogs are largely unknown. By combining our non-invasive electroencephalography (EEG) protocol on dogs with machine-learning algorithms, we show category-specific dog brain responses to pictures of human and dog facial expressions, objects, and phase-scrambled faces. We trained a support vector machine classifier with spatiotemporal EEG data to discriminate between responses to pairs of images. The classification accuracy was highest for humans or dogs vs. scrambled images, with most informative time intervals of 100-140 ms and 240-280 ms. We also detected a response sensitive to threatening dog faces at 30-40 ms; generally, responses differentiating emotional expressions were found at 130-170 ms, and differentiation of faces from objects occurred at 120-130 ms. The cortical sources underlying the highest-amplitude EEG signals were localized to the dog visual cortex.
Subject: EVENT-RELATED POTENTIALS
EVOKED-POTENTIALS
ATTENTION
RESPONSES
DISCRIMINATION
EXPRESSIONS
PROJECTIONS
FAMILIAR
ERP
413 Veterinary science
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
s41598_020_76806_8_1_1.pdf 2.613Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record