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Enhanced neural processing of goal-directed actions during active training in 4-month-old infants
Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.
Univ Washington, Seattle, WA 98195 USA.
Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för psykologi.
2016 (engelsk)Inngår i: Journal of cognitive neuroscience, ISSN 0898-929X, E-ISSN 1530-8898, Vol. 28, nr 3, s. 472-482Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The current study explores the neural correlates of action perception and its relation to infants' active experience performing goal-directed actions. Study 1 provided active training with sticky mittens that enables grasping and object manipulation in prereaching 4-month-olds. After training, EEG was recorded while infants observed images of hands grasping toward (congruent) or away from (incongruent) objects. We demonstrate that brief active training facilitates social perception as indexed by larger amplitude of the P400 ERP component to congruent compared with incongruent trials. Study 2 presented 4-month-old infants with passive training in which they observed an experimenter perform goal-directed reaching actions, followed by an identical ERP session to that used in Study 1. The second study did not demonstrate any differentiation between congruent and incongruent trials. These results suggest that (1) active experience alters the brains' response to goal-directed actions performed by others and (2) visual exposure alone is not sufficient in developing the neural networks subserving goal processing during action observation in infancy.

sted, utgiver, år, opplag, sider
2016. Vol. 28, nr 3, s. 472-482
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-270101DOI: 10.1162/jocn_a_00909ISI: 000369760000009PubMedID: 26679217OAI: oai:DiVA.org:uu-270101DiVA, id: diva2:885887
Forskningsfinansiär
EU, European Research Council, CACTUS 312292Knut and Alice Wallenberg Foundation, KWA 2012.0120Tilgjengelig fra: 2015-12-21 Laget: 2015-12-21 Sist oppdatert: 2018-08-29bibliografisk kontrollert
Inngår i avhandling
1. How hands shape the mind: The P400 as an index of manual actions and gesture perception
Åpne denne publikasjonen i ny fane eller vindu >>How hands shape the mind: The P400 as an index of manual actions and gesture perception
2018 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Being able to perform and understand actions is crucial for proper functioning in the social world. From birth, we use our bodies to act and to promote learning about ourselves, our environment and other people’s actions and intentions. Our mind is embodied; thus, our actions play a crucial role in cognitive and social development.

This thesis focuses on the close interrelation between action and perception and the role of our hands in this link. Three empirical studies on action processing are presented in a framework of embodied cognition that emphasises the role of bodily experience in social development. All three studies were designed to measure event-related potentials (ERPs) in infants 4 to 9 months old, when they observed manual actions, grasping and the give-me gesture.

Study I demonstrates the neural underpinnings of infants’ action–perception link at the age when their ability to grasp for objects in a functional manner emerges. Neural processing has been found to be influenced by infants’ own manual experience of exactly the same grasping action.

Study II reveals that brief active motor training with goal-directed actions, even before the solid motor plans for grasping are developed, facilitates processing of others’ goal-directed actions.

Study III shows that the same neural correlate that indexes processing of reaching actions is involved in encoding of the give-me gesture, a type of non-verbal communication that conveys a request. This ability was found not to be directly dependent on the infants’ own ability to respond behaviourally to another person’s gesture.

This thesis pinpoints the neural correlate, P400, involved in the processing of goal-directed actions and gestures. The findings highlight the importance of motor experience, as well as the involvement of attentional processes in action processing. Additionally, the data from Study III may suggest a possible involvement of grasping skills in encoding non-verbal communicative gestures.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2018. s. 92
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Social Sciences, ISSN 1652-9030 ; 159
Emneord
goal-directed actions, action processing, EEG, ERP, P400, gestures, grasping, embodiment, social development, give-me gesture, dynamic system theory
HSV kategori
Forskningsprogram
Psykologi
Identifikatorer
urn:nbn:se:uu:diva-358475 (URN)978-91-513-0431-1 (ISBN)
Disputas
2018-10-19, Auditorium Minus, Gustavianum, Akademigatan 3, Uppsala, 13:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2018-09-27 Laget: 2018-08-29 Sist oppdatert: 2018-10-16

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